REIMEI-GIMRT workshop
"Quantum Beams Study of the Dynamics of Rare Earth Garnets"

Scope

The subject of the workshop is to explore the magnetism, dynamics, and transport properties of Rare-Earth Garnets in both bulk form and in films. This is to develop an adequate treatment of the complex magnetic dynamics which takes into account the non-collinear structures that appear in many of the compounds and their origin in terms of crystal field anisotropies acting on the rare-earth sites. The influence of the rare-earth moments on the chiral properties of the spin waves is of paramount importance in, for example, the spin Seebeck effect. Compensation points are potentially interesting for potential applications in spintronics as the magnetic dynamics are altered and domain wall motion enhanced. As well as bulk samples, it is now possible to study films, whose properties are directly relevant to device applications and this raises issues about the influence of strain and other details of coupling to the lattice. Several groups internationally are looking at the dynamics by neutron inelastic scattering and, more recently, resonant magnetic X-ray scattering, and we hope to encourage discussion between them as to the interpretation of results that are currently being produced, and the availability of samples for future experiments.

Invited Speaker

Chudo, Hiroyuki

JAEA

Geprägs, Stephan

Walther-Meißner-Institut, Bavarian Academy, Gremany

Harii, Kazuya

QST

Hioki, Tomosato

University of Tokyo

Hisatomi, Ryusuke

Kyoto University

Kawamoto, Yo

IMR Tohoku University

Kohno, Ryuhei

Tohoku University

Mannix, Dan

ESS, Sweden

Miyawaki, Jun

QST

Nakamura, Asuka

RIKEN

Omori, Yasutomo

NEC

Peçanha-Antonio, Viviane

University of Oxford, UK

Puebla, Jorge

RIKEN

Shamoto, Shin-ichi

CROSS

Thomas-Hunt, Jack

Aarhus University, Denmark

Tomasello, Bruno

University of Kent, UK

Program (pdf)

Aug. 7 (Monday)

10:00		Reception
10:20	K. Takanashi (JAEA)	Opening
10:30	D. Mannix (ESS)	Exploiting Polarised neutron and X-ray synergies to reveal magnetic structure and dynamics in spin caloritronics
11:00	J. Miyawaki (QST)	Quantum material research by resonant inelastic soft X-ray scattering facility at NanoTerasu
11:30	R. Kohno (Tohoku)	Non-local magnon transconductance in extended rare-earth magnetic garnet films
12:00		Lunch
14:00	S. Geprägs (Walther-Meißner-Institut)	Rare-earth iron garnets: A prototype material system for spintronics and magnonics
14:30	V. Peçanha-Antonio (U. Oxford)	Rare earth iron garnets from the neutron scattter viewpoint
15:00	S. Shamoto (CROSS)	Spin-lattice coupling in yttrium iron garnet studied by neutron scattering under ultrasound injection
15:30		Break
16:00	B. Tomasello (U. Kent)	Role of magneto-crystalline anisotropies in complex rare-earth garnets
16:30	Y. Kawamoto (IMR)	Neutron scattering studies for spin dynamics in terbium iron garnet
18:00-		Banquet

Aug. 8 (Tuesday)

9:30	J. Puebla (RIKEN)	Mid-infrared spectroscopy characterization of spintronic structures
10:00	H. Chudo (JAEA)	Observation of the angular momentum compensation by using the Barnett effect
10:30		Break
11:00	K. Harii (QST)	Modification of magnetic properties in garnets caused by swift ion beam irradiation
11:30	A. Nakamura (RIKEN)	Acoustically induced nonlocal magnetic domain dynamics in ferromagnet thin film revealed by ultrafast transmission electron microscopy
12:00		Lunch
14:00	J. Thomas-Hunt (Aarhus)	Renewed investigation of the double umbrella
14:30	Y. Omori (NEC)	Combinatorial experiments of FMR on magnetic garnet films
15:00		Break
15:30	R. Hisatomi (Kyoto)	Vorticity-inversion Brillouin light scattering by magnons in yttrium iron garnet crystal
16:00	T. Hioki (U. Tokyo)	Coherent dynamics of hybridized magnons and phonons
16:30	S. Maekawa (RIKEN)	Closing

Venue

Auditorium, IMR, Tohoku University

Organizers

Ieda, Jun'ichi

ASRC, JAEA, Japan

Mori, Michiyasu

ASRC, JAEA, Japan

Fujita, Masaki

IMR, Tohoku University, Japan

Nojiri, Hiroyuki

IMR, Tohoku University, Japan

Ziman, Timothy

ILL, Grenoble, France

Sakai, Toru

University of Hyogo, Japan

Support

REIMEI: Japan Atomic Energy Agency
GIMRT: IMR, Tohoku University
Center of Neutron Science for Advanced Materials: IMR, Tohoku University

Contact

Ieda, Jun'ichi

ieda.junichi@jaea.go.jp

Nojiri, Hiroyuki

nojiri@imr.tohoku.ac.jp