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 W55: Correlated Electron Materials II
3:00 PM–5:48 PM,
Thursday, March 9, 2023
Room: Room 305
Sponsoring
Unit:
GMAG
Chair: Colin Sarkis, Oak Ridge National Lab
Abstract: W55.00009 : Kitaev vs. Non-Kitaev Honeycomb Cobaltate*
4:36 PM–4:48 PM
Presenter:
Xiaoyu Liu
(Univ of Washington)
Authors:
Xiaoyu Liu
(Univ of Washington)
Hae-Young Kee
(Univ of Toronto)
In this work we derive the spin model using strong-coupling perturbation theory. The analytical expressions of spin interactions up to fourth order for the ideal octahedra case are provided. Incomplete cancellation of Heisenberg interactions occurs due to the presiding intraorbital hopping path together with the Hund's coupling. These second-order processes tend to be ferromagnetic (FM). Under trigonal distortions, the preeminent isotropic Heisenberg becomes an anisotorpic XXZ model. Applying our theory to BaCo2(AsO4)2, the dominant FM Heisenberg is found. A way to achieve Kitaev Cobaltates is also discussed.
*
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