@_ΆXg(ΈΗt«)
134)
Scanning SQUID Microscope Study of Vortex Polygons and Shells in Weak Pinning
Disks of an Amorphous Superconducting Film,
N.Kokubo, S.Okayasu, A. Kanda, and B.
Shinozaki,
PHYSICAL REVIEW B, 82, 014501-1-014501-8
(2010).
133)
Effect of strong gravity on Y1Ba2Cu3O7-x
superconductor,
R.Bagum, A.Yoshiasa, S.Okayasu, Y.Iguchi, M.Ono,M.Okube,and
T.Mashimo,
JOURNAL
OF APPLIED PHYSICS, 108, 053517-1-053517-7 (2010).
132)
History dependent vortex configurations in superconducting disks of amorphous
MoGe,
N.Kokubo, S.Okayasu, A.Kanda, and
B.Shinozaki,
J.
Phys.: Conf. Ser. , 150, 022044-1-022044-4 (2009).
131)
Development of Special Rotor for Centrifugal Separation of Isotopes in Solid
Pure-Metals
M.Ono,
M.Sueyoshi, S.Okayasu et.al.,
REVIEW
OF SCIENTIFIC INSTRUMENTS, 80, 083908 -1-6 (2009)
130)
On-Line Diffusion Tracing in Li Ionic Conductors by the Short-Lived Radioactive
Beam of Li-8,
JAPANESE JOURNAL OF APPLIED PHYSICS, 47 ,8 ,6413-6415
(2008).
129)
Shell structures of vortices in superconducting disks of an amorphous MoGe film,
Kokubo,
N; Okayasu, S; Shinozaki, B
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 468 ,15-20 ,1316-1318
(2008).
128)
Effect of heavy ion irradiation on critical current property in DyBCO coated
conductors,
Isobe,
G; Kiuchi, M; Otabe, ES, et al.
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,468 ,15-20 ,1656-1660
(2008).
127)
Alpha-ray detection with a MgB2 transition edge sensor,
Okayasu, S; Katagiri, M; Hojou, K, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,468 ,15-20 ,1998-2000
(2008).
126)
c-Axis-correlated pinning properties in heavy-ion-irradiated Y123 films,
Namba, M;
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS , 468 ,15-20 ,1652-1655
(2008).
125)
Gravity-induced diffusion of isotope atoms in monoatomic solid Se,
Mashimo, T; Ono, M; Huang, XS, et al.,
EPL ,81 ,5 Article Number56002
(2008).
124)
Observation of an extended magnetic field penetration in amorphous
superconducting MoGe films,
Nishio,
T; Okayasu, S; Suzuki, J, et al.,
PHYSICAL REVIEW B
,77 ,5 Article Number052503
(2008).
123)
High-energy ion irradiation effects on atomic structures and optical properties
of copper oxide and electronic sputtering,
Matsunami, N; Sataka, M; Okayasu, S, et al.,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,266 ,12-13 ,2986-2989 (2008).
122)
The effect of heavy ion irradiation on the critical current density in DyBCO
coated conductors,
Matsushita, T; Isobe, G; Kimura, K, et
al.,
SUPERCONDUCTOR SCIENCE & TECHNOLOGY,21 ,5 Article
Number054014
(2008).
121)
Effect of c-axis-correlated disorders on the vortex diagram of the pinning
state,
Namba, M;
APPLIED
PHYSICS EXPRESS,1 ,3
DOI10.1143/APEX.1.031703
(2008).
120)
Superconducting MgB2 thin film detector for neutrons,
Ishida,
T; Nishikawa, M; Fujita, Y, et al.,
JOURNAL
OF LOW TEMPERATURE PHYSICS ,151 ,3-4 ,1074-1079
(2008).
119)
Chemistry in mega-gravityPreparation of molecular-scaled graded materials from
radical copolymerization,
Ihara,
H; Abe, Y; Miyamoto, A, et al.,
CHEMISTRY LETTERS ,37 ,2 ,200-201
(2008).
118)
Sedimentation of isotope atoms in monatomic liquid Se,
Mashimo, T; Ono, M; Huang, XS, et al.,
APPLIED
PHYSICS LETTERS ,91 ,23 ,231917
(2007).
117)
Giant tunnel magnetoresistance in codeposited fullerene-cobalt films in the low
bias-voltage regime,
APPLIED
PHYSICS LETTERS ,91 ,24 ,242104 (2007).
116) A
trial usage of microprobes for improvement of a scanning SQUID
microscope,
Okayasu, S; Kokubo, N; Kakeya, I,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,463 ,294-296
(2007).
115)
Vortex phase diagram in heavy ion irradiated untwinned YBa2Cu3Oy single
crystals,
Kobayashi, N; Nishizaki, T; Kasuga, K, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,460 ,1204-1205
(2007).
114)
Formation of atomic-scale graded structure in Se-Te semiconductor under strong
gravitational field,
Huang,
XS; Ono, M; Ueno, H, et al.,
JOURNAL
OF APPLIED PHYSICS ,101 ,11 ,113502
(2007)
113)
Electronic sputtering of nitrides by high-energy ions,
Matsunami, N; Sataka, M; Okayasu, S, et al.,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS,256 , 1 , 333-336
(2007).
112)
Structure of beam tracks induced by swift heavy ions in Bi2Sr2CaCu2O8
superconductors,
Sasase,
M; Okayasu, S; Yamamoto, H, et al.,
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF
COMMUNICATIONS & REVIEW PAPERS,46,783-786
(2007).
111)
Influence of anisotropy and pinning centers on critical current properties in
Bi-2212 superconductors,
Haraguchi, T; Takayama, S; Kiuchi, M, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,445,123-127
(2006).
110)
Pinning characteristics at high fields in superconducting (Bi,Pb)-2223 single
crystals,
Kohno,
I; Kiuchi, M; Otabe, ES, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,445,137-140
(2006).
109)
Vortex imaging in Tl-based superconductors with a scanning SQUID microscopy,
Okayasu, S; Nishio, T; Ono, M, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,445 ,245-248
(2006).
108)
Irradiation effects with 100 MeV Xe ions on optical properties of Al-doped ZnO
films,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,250 ,295-299 (2006).
107)
Electrical conductivity increase of Al-doped ZnO films induced by
high-energy-heavy ions,
Sugai, H;
Matsunami, N;
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,250 ,291-294 (2006).
106)
Sedimentation of constitutional atoms in in-pb alloy under strong gravitational
field - (Experiments and simulations),
Ono, M;
Kinoshita, T; Huang, XS, et al.,
JOURNAL
OF THE JAPAN INSTITUTE OF METALS 70 ,6 ,511-516
(2006).
105)
Vortex observation in Tl-based superconductors with a scanning SQUID microscopy,
Okayasu, S; Nishio, T; Ono, M, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 437-38, 239-241
(2006).
104)
Alignment of grain orientation in polycrystalline-SiO2 films induced by
high-energy heavy ions,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS,245,1 ,231-234 (2006).
103)
Condensation energy density in Bi-2212 superconductors,
Matsushita, T; Kiuchi, M; Haraguchi, T, et
al.,
SUPERCONDUCTOR SCIENCE & TECHNOLOGY ,19 ,2 ,200-205
(2006)
102)
Measurement of self-diffusion coefficients in Li ionic conductors by using the
short-lived radiotracer of Li-8,
JOURNAL
OF PHASE EQUILIBRIA AND DIFFUSION ,26 ,5 ,472-476
(2005).
101)
Pulse laser irradiation into superconducting MgB2 detector,
Fujiwara, D; Miki, S; Satoh, K, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,426,1716-1720
(2005).
100)
Critical current density at low temperatures in Bi-2212 superconductor with
small anisotropy,
Haraguchi, T; Imada, T; Kiuchi, M, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 426 ,304-308
(2005).
99) A
comparison between B- and n-irradiation on MgB2 bulk
samples,
Okayasu, S; Sataka, M; Ikeda, H, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,426,360-363
(2005).
98)
Vortex imaging in microscopic superconductors with a scanning SQUID
microscope,
Okayasu, S; Nishio, T; Hata, Y, et
al.,
IEEE
TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY ,15 ,2 ,696-698
(2005).
97)
Giant magnetoreistance in evaporated nanometer scale Fe/W and Co/W
multilayers,
Chushkin, Y; Jergel, M; Luby, S, et
al.,
APPLIED
SURFACE SCIENCE ,243 ,1-4 ,62-67
(2005).
96)
Measurement of diffusion coefficients in solids by the short-lived radioactive
beam of Li-8,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS 230 ,596-600 (2005).
95) A
multi-exciton model for the electronic sputtering of
oxides,
Matsunami, N;
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,230 ,507-511 (2005).
94)
Nanoscale frictionKinetic friction of magnetic flux quanta and charge density
waves,
Maeda,
A; Inoue, Y; Kitano, H, et al.,
PHYSICAL REVIEW LETTERS ,94 ,7 ,077001
(2005).
93)
Evidence for a hard gap and Wigner lattice in heavily boron-doped synthetic
diamond,
Sudou,
T; Ohashi, K; Sato, T, et al.,
PHYSICAL REVIEW B ,71 ,4
,045211 (2005).
92)
Li-8 and F-18 diffusion experiments in solids - an application of accelerated
RNB,
NUCLEAR
PHYSICS A ,746 ,293C-297C (2004).
91)
Vortex glass transition in a YBa2Cu3O7-delta film with patterned pinning
geometry,
Kyoso,
T; Nojima, T; Okayasu, S, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,412 ,506-510
(2004).
90)
Penetration of vortices into micro-superconductors observed with a scanning
SQUID microscope,
Nishio,
T; Okayasu, S; Suzuki, J, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,412 ,379-384
(2004).
89)
Relationship between condensation energy and dimensionality of Bi-2212
superconductor,
Okamura, K; Kiuchi, M; Otabe, ES, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,412 ,416-421
(2004).
88)
Neutron detector by using a metallic high-T-c superconductor
MgB2,
Takahashi, K; Miki, S; Satoh, K, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,412 ,1597-1601
(2004).
87) Ion
irradiation dependence of the superconducting properties of
(Cu,C)Ba2Ca3Cu4O10.5-delta,
Kito,
H; Iyo, A; Hirai, M, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,408 ,657-658
(2004).
86)
Nanofabrication of superconducting MgB2 neutron
detector,
Miki,
S; Takahashi, K; Fujiwara, D, et al.,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT ,529 ,1-3 ,405-408
(2004).
85)
Josephson plasma resonance in Bi2Sr2CaCu2O8+y with spatially dependent
interlayer phase coherence,
Kameda,
N; Tokunaga, M; Tamegai, T, et al.,
PHYSICAL REVIEW B 69
,18, 180502 (2004).
84) The
pinning property of Bi-2212 single crystals with columnar
defects,
Okamura, K; Kiuchi, M; Otabe, ES, et
al.,
SUPERCONDUCTOR SCIENCE & TECHNOLOGY ,17 ,2 ,S20-S24
(2004).
83)
Simulation of radiotracer method for diffusion studies using short-lived
radioactive nuclear beams,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,212 ,483-488 (2003).
82)
Heavy-ions irradiation dependence of superconducting properties of the Cu-based
(Cu,C)Ba2Ca3Cu4O11-delta,
Kito,
H; Iyo, A; Hirai, M, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,392 ,181-184
(2003).
81)
Design of neutron detector by using a novel superconductor
MgB2,
Takahashi, KI; Satoh, K; Yotsuya, T, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,392 ,1501-1503
(2003).
80)
Electronic excitation induced sputtering of insulating and semiconducting oxides
by high energy heavy ions,
Matsunami, N; Sataka, M; Iwase, A, et
al.,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,209 ,288-293 (2003).
79)
Simulation study on the measurements of diffusion coefficients in solid
materials by short-lived radiotracer beams,
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT
NOTES & REVIEW PAPERS ,42 ,7A ,4576-4583
(2003).
78)
Pinning property of Bi-2212 single crystals with columnar
defects,
Otabe,
ES; Okamura, K; Wada, H, et al.,
IEEE
TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY ,13 ,2 ,3083-3086 (2003).
77)
Disappearance of Bose-glass behavior in transport properties of YBa2Cu3Oy films
with columnar defects,
Nojima,
T; Katakura, M; Okayasu, S, et al.,
JOURNAL
OF LOW TEMPERATURE PHYSICS ,131 ,5-6 ,859-863
(2003).
76)
Heavy-ion irradiation dependence of the superconducting properties of
(Cu,C)Ba2Ca3Cu4O10.5-delta,
Kito,
H; Iyo, A; Crisan, AI, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,388 ,711-712
(2003).
75)
Effects of electron irradiation on the vortex order-disorder transition in
La2-xSrxCuO4 crystals,
Radzyner, Y; Shaulov, A; Yeshurun, Y, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,388 ,753-754
(2003).
74)
Low-temperature measurement system based on a closed-cycle
refrigerator,
Tsuji,
M; Kawamata, S; Ishida, T, et al.,
PHYSICA
B-CONDENSED MATTER ,329 ,1632-1634 (2003).
73)
Intermixing at interfaces of KrF laser irradiated Co/W
multilayers,
Majkova, E; Luby, S; Jergel, M, et
al.,
APPLIED
SURFACE SCIENCE ,208 ,394-398 (2003).
72)
Defect structure of high-T-c superconductor by high-energy heavy ion
irradiation,
Sasase,
M; Okayasu, S; Kurata, H, et al.,
,JOURNAL OF ELECTRON MICROSCOPY ,51 ,S235-S238
(2002).
71)
Depth-dependent and surface damages in MgAl2O4 and MgO irradiated with energetic
iodine ions,
Aruga,
T; Katano, Y; Ohmichi, T, et al.,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,197 ,1-2 ,94-100 (2002). PII S0168-583X(02)01359-9
70)
Irradiation effects on MgB2 bulk samples and formation of columnar defects in
high-T-c superconductor,
Okayasu, S; Sasase, M; Hojou, K, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,382 ,1 ,104-107 (2002). PII S0921-4534()2)01206-6
69) AC
susceptibility and higher harmonics studies of heavy-ion irradiated
CuBa2Ca3Cu4Oy bulk superconductor with highest irreversibility field above
liquid-nitrogen temperature,
Crisan,
A; Iyo, A; Kito, H, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,378 ,112-117 (2002). PII
S0921-4534(02)01393-X.
68)
Superconducting properties of the heavy-ions and neutron irradiated
(Cu,C)Ba2Can-1CunO2n+4-delta (n-3, 4 and 5),
Kito,
H; Iyo, A; Hirai, M, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,378 ,329-332 (2002). PII S0921-4534(02)01437-5
67)
Non-universal glass scaling behavior in transport properties of YBa2Cu3Oy films
with columnar defects,
Nojima,
T; Katakura, M; Okayasu, S, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,378 ,593-597 (2002). PII S0921-4534(02)01503-4
66)
Change in critical current density of Bi-2212 single crystals due to high-energy
heavy-Ion irradiation followed by thermal
annealing,
Ogikubo, K; Nakano, M; Shitamichi, T, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,378 ,368-371 (2002). PII S0921-4534(02)01447-8
65)
Electron irradiation effects on MgB2 bulk samples,
Okayasu, S; Ikeda, H; Yoshizaki, R,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,378 ,462-465 (2002). PII S0921-4534(02)01471-5
64)
Angular dependence of vortex states in Sr2RuO4,
Yamazaki, K; Tokunaga, M; Tamegai, T, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,378 ,537-540 (2002). PII S0921-4534(02)01491-0
63)
Direct evidence of the anisotropic structure of vortices interacting with
columnar defects in high-temperature superconductors through the analysis of
Lorentz images,
Kamimura, O;
JOURNAL OF THE
PHYSICAL SOCIETY OF
62)
Observation of structures of chain vortices inside anisotropic high- Tc
superconductors.,
Tonomura, A;
Phys
Rev Lett ,88 ,23 ,237001 (2002).
61)
Observation of structures of chain vortices inside anisotropic high-T-c
superconductors,
Tonomura, A;
PHYSICAL REVIEW LETTERS ,88 ,23 ,237001
(2002)
60)
Helium-free torque magnetometer up to 10 kG at 1.5-300
K,
Tsuji,
M; Yamamoto, N; Nakata, S, et al.,
IEICE
TRANSACTIONS ON ELECTRONICS ,E85C ,3 ,756-758
(2002).
59)
Lorentz microscopy observation of vortices inside Bi-2212 thin films with
columnar defects,
Tonomura, A;
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,369 ,1-4 ,68-76 (2002). PII S0921-4534(01)01222-9
58)
Josephson plasma resonance in half-irradiated
Bi2Sr2CaCu2O8+y,
Kameda,
N; Tokunaga, M; Tamegai, T, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
367 ,1-4 ,400-403
(2002).
57)
Vortex observations in the triangular microhole lattice on Pb film by SQUID
microscope,
Ishida,
T; Yoshida, M; Okayasu, S, et al.,
SUPERCONDUCTOR SCIENCE & TECHNOLOGY ,14 ,12 ,1128-1130
(2001).
56)
Josephson plasma resonance in Bi2Sr2CaCu2O8+gamma with partially introduced
columnar defects,
Tamegai, T; Kameda, N; Tokunaga, M, et
al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,362 ,78-85
(2001).
55)
Direct observation of vortex images on lead micro-hole lattice by SQUID
microscope,
Ishida,
T; Yoshida, M; Okuda, K, et al.,
PHYSICA
C ,357 ,604-607 (2001).
54)
Reduction of interlayer coherence around 1/3 of matching field in Bose glass
phase of YBa2Cu3O7-delta with columnar defects,
Itaka,
K; Yasugaki, M; Shibauchi, T, et al.,
PHYSICA
C ,357 ,435-437 (2001).
53)
Macroscopic interference of interlayer phase coherence in Bi2Sr2CaCu2O8+y with
inhomogeneous columnar defects,
Kameda,
N; Tokunaga, M; Tamegai, T, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,357 ,572-575
(2001).
52)
Effect of the neutron irradiation of the high temperature superconductor
(Cu,C)Ba2Can-1CunO2n+4-delta (n=3, 4 and 5),
Kito,
H; Iyo, A; Tokumoto, M, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,357 ,234-236
(2001).
51)
Vortex phase transition and correlation in partially Au-ion irradiated YBa2Cu3O7
films,
Nojima,
T; Liu, JZ; Nishizaki, T, et al.,
PHYSICA
C ,357 ,469-472 (2001).
50)
Pinning properties of quenched and melt growth method-YBCO bulk
samples,
Okayasu, S; Sasase, M; Kuroda, N, et al.,
PHYSICA
C ,357 ,501-504 (2001).
49)
Irradiated damage in high-T-c superconductor,
Sasase,
M; Okayasu, S; Kurata, H, et al.,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,357 ,497-500
(2001).
48)
Observation of individual vortices trapped along columnar defects in
high-temperature superconductors,
Tonomura, A; Kasai, H; Kamimura, O, et
al.,
NATURE
,412 ,6847 ,620-622 (2001).
47)
Asymmetric field profile in Bose glass phase of irradiated YBa2Cu3O7-deltaLoss
of interlayer coherence around 1/3 of matching
field,
Itaka,
K; Shibauchi, T; Yasugaki, M, et al.,
PHYSICAL REVIEW LETTERS ,86 ,22 ,5144-5147
(2001).
46)
Weak pinning phenomena in liquid state in Bi2Sr2CaCu2O8+delta with columnar
defects,
Kimura,
K; Koshida, R; Okayasu, S, et al.,
PHYSICA
C ,341 ,1133-1134 (2000).
45)
Pinning property change of high-energy heavy-ion irradiated Bi-2212 single
crystals due to thermal annealing after
irradiation,
Ogikubo, K; Terai, T; Yamaguchi, K, et
al.,
PHYSICA
C ,341 ,1149-1150
(2000).
44)
Systematic study of Josephson plasma resonance in Bi2Sr2CaCu2O8+delta with
columnar defects,
Kakeya,
I; Nakamura, R; Kadowaki, K, et al.,
PHYSICA
B ,284 ,881-882
(2000).
43)
Magnetization anomalies above the vortex lattice melting
transition,
Kimura,
K; Koshida, R; Okayasu, S, et al.,
PHYSICA
B ,284 ,717-718
(2000).
42)
Effect of damage morphology on the pinning and vortex dynamics in
Bi2Sr2CaCu2O8+delta irradiated with GeV heavy ions,
Kuroda,
N; Ishikawa, N; Chimi, Y, et al.,
PHYSICA
B ,284 ,847-848
(2000).
41)
Magnetization measurements on anomalous peak effect in detwinned YBCO single
crystals,
Okayasu, S; Sasase, M; Asaoka, H,
PHYSICA
B ,284 ,715-716
(2000).
40)
Amorphization behaviors in polycrystalline alumina irradiated with energetic
iodine ions,
Aruga,
T; Katano, Y; Ohmichi, T, et al.,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,166 ,913-919 (2000).
39)
Effects of weak point disorder on the vortex matter phase diagram in untwinned
YBa2Cu3Oy single crystals,
Nishizaki, T; Naito, T; Okayasu, S, et
al.,
PHYSICAL REVIEW B
,61 ,5 ,3649-3654
(2000).
38)
Novel asymmetric critical state in YBa2Cu3O7-delta with columnar
defects,
Itaka,
K; Yasugaki, M; Shibauchi, T, et al.,
JOURNAL
OF LOW TEMPERATURE PHYSICS
,117 ,5-6 ,1369-1373
(1999).
37)
Systematic magnetization measurements on single crystalline Bi2Sr2CaCu2O8+delta
with columnar defects,
Kimura,
K; Koshida, R; Kwok, WK, et al.,
JOURNAL
OF LOW TEMPERATURE PHYSICS
,117 ,5-6 ,1471-1475
(1999).
36)
Magnetically investigated E-J characteristics of Bi-2212/Ag tape
conductors,
Kumakura, H; Kitaguchi, H; Mochiku, T, et
al.,
PHYSICA
C ,324 ,2 ,57-64
(1999).
35)
Vortex dynamics in Bi2(Sr,La)(2)CuO6+delta and Bi2Sr2CaCu2O8+delta single
crystals with columnar defects,
Kuroda,
N; Ishikawa, N; Chimi, Y, et al.,
PHYSICA
C ,321 ,3-4 ,143-150
(1999).
34) The
order of phase transition of reentrant line in detwinned YBCO single
crystal,
Okayasu, S; Asaoka, H,
PHYSICA
C-SUPERCONDUCTIVITY AND ITS APPLICATIONS ,317 ,633-636
(1999).
33)
Formation of granular-like structure of Ag Co multilayers by excimer laser
irradiation,
Majkova, E; Spasova, M; Jergel, M, et
al.,
THIN
SOLID FILMS ,344 ,214-217
(1999).
32)
Association of Bcl-2 protein expression with gallbladder carcinoma
differentiation and progression and its relation to
apoptosis,
Mikami,
T; Yanagisawa, N; Baba, H, et al.,
CANCER ,85 ,2 ,318-325
(1999).
31)
Vortex dynamics in Bi2+xSr2-(x+y)LayCuO6+delta and Bi2Sr2CaCu2Oy irradiated with
heavy-ionscorrelation between the Bose-glass behavior and the coupling of
pancake vortices,
Kuroda,
N; Ishikawa, N; Okayasu, S, et al.,
NUCLEAR
INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH
MATERIALS AND ATOMS ,146 ,1-4 ,572-576
(1998).
30)Reentrant properties due to the peak effect in
untwinned YBCO single crystals
S.Okayasu and H.Asaoka
Advances in Superconductivity X, 549-551
(1998).
29)Uranium molybdenum silicid
U3MoSi2 and phase equilibria in the U-Mo-Si system
M.Ugajin, A.Itoh, S.Okayasu and
Y.Kazumata
J. of nuclear materials 257, 145-151
(1998).
28)Vortex phase diagram of
YBa2Cu3Oy in high magnetic fields -Effects of
weak disorder-
N.Kobayashi, T. Naito, T.Nishizaki, K.Shibata,
S.Okayasu ΌQΌ
Proceedings of the Physical phenomena at high
magnetic fields III 380-383 (1998).
27)Effect of Au24+ ion irradiation on the
superconductive properties and Microstructure of EuBa2Cu3Ox thin
film
M.Sasase, S.Okayasu, H.Kurata and
K.Hojou
Surface and Coatings Technology 103-104, 360-364
(1998).
26)Bi2212 films and tapes irradiated by 120 MeV
oxygen ions
Y.Kazumata, S.Okayasu, H.Kumakura and
K.Togano
Physica C 235-240, 2825-2826
(1994).
25)Defect study along Au-ion traces in
Bi2Sr2CaCu2Ox single
crystal
D.Huang, Y.Sasaki, S.Okayasu, T.Aruga,
K.Hojou ΌPΌ
Phys. Rev B 57, 1-8 (1998).
24)Irreversibility lines of
EuBa2Cu3Ox7-Β films bombarded by 230MeV
Au14+ ions criterion dependence
T. Ishida, K.Okuda, Y.Kazumata, S.Okayasu,
O.Michikami
Physica C 247, 206-214
(1995).
23)Parallel and crossed columnar defects aligned at
45to the c axis in Bi2Sr2CaCu2Ox
tapes
Y.Kazumata, S.Okayasu, M.Sataka,
H.Kumakura
Phys. Rev. B 58 5839-5847
(1998).
22)Reeentrant properties due to the peak effect in
untwinned YBCO single crystal
S.Okayasu and H.Asaoka
Advances in Superconductivity X, 549-552
(1998).
21)Effect of high energy heavy-ion irradiation on
the critical current density of Bi-2212 single crystal
T.Terai,Y.Ito, K.Kishio, J.Shimoyama,
S.Okayasu ΌPΌ
Advances in Superconductivity IX, 555-558
(1997).
20)Effect of high energy heavy-ion irradiation on
the critical current density of Bi-2212 single crystal
T.Terai,T.Kobayashi, K.Kishio, J.Shimoyama,
S.Okayasu ΌPΌ
Physica C282-287, 2135-2136
(1997).
19)Xray rocking curve study of the strain profile
formed by MeV ion implantation into (111) silicon wafers
M.Kuribayashi, K.Takumi, A.Inoue, H.Tanaka,
(S.Okayasu) Ό7Ό
Jpn. J. Appl. Phys. 36, 7296-7301
(1997).
18)Proton irradiation effects on effective
activation energies of QMG-YBCO
S.Okayasu and Y.Kazumata
Advances in Superconductivity IX, 507-510
(1997).
17)Observation of dynamic fluxline relaxation in
ion-irradiated Bi2Sr2CaCu2Ox by
Lorentz microscopy
K. Harada, H.Kasai, T.Matsuda, A.Tonomura,
S.Okayasu ΌPΌ
Phys. Rev B 53 9400-9405
(1996).
16)Effective activation energy of 16MeV proton
irradiated QMG-YBCO
S.Okayasu and Y.Kazumata
Czechoslovak J. of Physics 46, 1645-1646
(1996).
15)Comparative study on 180MeV Cu11+
irradiation effect on textured YBa2Cu3Ox and
Bi2Sr2CaCu2Oy
H.Kumakura, T.Togano, N.Tomita, E.Yanagisawa,
S.Okayasu ΌPΌ
Physica C251, 231-237 (1995).
14)YBa2Cu3Ox films
irradiated by 120MeV oxygen ions
Y.Kazumata, S.Okayasu and
T.Aruga
Jpn. J. Appl. Phys. 33 1012-1017
(1994).
13)Superconductivity of electron irradiated
La1.85Sr0.15CuO4 single
crystal
S.Okayasu, Y.Kazumata, I.Tanaka and
H.Kojima
Trans. Mat. Res. Soc. Jpn 19A, 421-424
(1994).
12)Electron irradiation effects on a
La1.85Sr0.15CuO4 single
crystal
S.Okayasu, Y.Kazumata, I.Tanaka and
H.Kojima
Physica B194-196, 1881-1882
(1994).
11)Spin glass behavior of Mn2+ ions in
zeolite-Y at very low temperature
S.Okayasu and Y.Narahara
J. Low Temp. Physics 96, 117-130
(1994).
10)Harmonic and static susceptibilities of
YBa2Cu3O7
T.Ishida, R.B.Goldfarb, S.Okayasu,
Y.Kazumata, J.FranzΌQΌ
Materials Science Forum 137-139, 103-132
(1993).
9)Effect of high-energy ion irradiation and
electron irradiation on textured
Bi2Sr2CaCu2Ox
-180MeV Cu11+ and Br11+ irradiations and 3MeV electron
irradiation
H.Kumakura, H.Kitaguchi, K.Togano, H.Maeda,
(S.Okayasu) ΌQΌ
J. Appl. Phys 74, 451-457
(1993).
8)Electron irradiation effects of
YBa2Cu3Ox
Y.Kazumata, S.Okayasu and
T.Kato
Physics and materials science of high temperature
superconductors II 595-608 (1992).
7)Flux pinning characteristics in 180MeV
Cu11+ irradiated
Bi2Sr2CaCu2Ox
H.Kumakura, H.Kitaguchi, K.Togano, H.Maeda,
(S.Okayasu) ΌQΌ
Jpn. J. Appl. Phys 31, 1408-1410
(1992).
6)Low-temperature annealing effect on
superconducting and structual
properties of ion-irradiated
Bi2Sr2CaCu2Ox
crystals
B.Chenevier, S.Ikeda, H.Kumakura, K.Togano,
S.Okayasu ΌPΌ
Jpn. J. Appl. Phys 31, 512-515
(1992).
5)High resolution electron microscopy observation
of defects in 180MeV Cu11+
ion-irradiated
Bi2Sr2CaCu2O8
crystals
B.Chenevier, S.Ikeda, H.Kumakura, K.Togano,
S.Okayasu ΌPΌ
Jpn. J. Appl. Phys 31, 777-779
(1992).
4)Enhancement of flux pinning in
Bi2Sr2CaCu2O8 by 180MeV
Cu11+ irradiation
H.Kumakura, S.Ikeda, K.Togano, H.Maeda,
(S.Okayasu)ΌRΌ
J. Appl. Phys. 72, 800-802
(1992).
3)The influence of electron irradiation on
superconductivity of
YBa2Cu3Ox
Y.Kazumata, S.Okayasu and
T.Kato
Physica C185-189, 2183-2184
(1991).
2)Bulk critical temperature enhancement of
Bi1.8Pb0.2Sr2CaCu2O8 by
phenol treatment
T.Ishida, S.Okayasu and
Y.Kazumata
Physica C178, 301-304 (1991).
1)Dc-susceptibility of Mn-zeolie
Y
S.Okayasu, K.Miyabe, K.Chahara,
A.Tominaga and Y.Narahara
Solid
State Comm. 73, 593-596 (1990).