Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session Q30: Strongly Correlated Systems, Including Quantum Fluids and Solids XIV
3:00 PM–6:00 PM,
Wednesday, March 8, 2023
Room: Room 222/223
Sponsoring
Unit:
DCMP
Chair: Shuang Tang, SUNY Polytechnic Institute
Abstract: Q30.00006 : Giant magnetoresistance across the magnetic-field induced semiconductor-semimetal transition in half-Heusler HoAuSn*
4:00 PM–4:12 PM
Presenter:
Kentaro Ueda
(Univ of Tokyo)
Authors:
Kentaro Ueda
(Univ of Tokyo)
Motoaki Hirayama
(RIKEN)
Ryo Kurokawa
(university of tokyo)
Tonghua Yu
(university of tokyo)
Hiraku Saito
(university of tokyo)
Taro Nakajima
(university of tokyo)
Markus Kriener
(RIKEN)
Manabu Hoshino
(RIKEN)
Daisuke Hashizume
(RIKEN)
Taka-hisa Arima
(university of tokyo)
Yoshinori Tokura
(Univ of Tokyo)
Here, we report a new family of half-Heusler HoAuSn which is a trivial indirect semiconductor at zero magnetic field but revealed to show a large negative magnetoresistance exceeding four orders of magnitude at low temperatures. The combination of the Shubnikov-de Haas oscillation and first-principle band calculation suggests that the spin-gapless semiconductor, which host both the high mobility and high spin polarization, is realized via strong intra-atomic coupling between localized 4f magnetic moments and 5d itinerant electrons in Ho ions.
Our findings can open new research directions for the topological band engineering and magnetoelectric effects beyond binary compounds.
*This work is supported by JSPS/MEXT Grant-in-Aid for Scientific Research (Grant No.21K13871) and CREST, JST (Grant No. JPMJCR16F1).
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700