Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session M46: Quasi-2D Frustration: Honeycomb Lattice and Other Geometries
11:15 AM–2:03 PM,
Wednesday, March 4, 2020
Room: 708
Sponsoring
Unit:
GMAG
Chair: Kate Ross, Colorado State University
Abstract: M46.00005 : Large spin fluctuation in the magnetization process of S=1/2 frustrated square lattice model
Presenter:
Tsuyoshi Okubo
(Department of Physics, University of Tokyo)
Author:
Tsuyoshi Okubo
(Department of Physics, University of Tokyo)
Motivated by several compounds, we discuss the nature of S=1/2 square lattice Heisenberg magnets with ferromagnetic and antiferromagnetic nearest-neighbor interactions. By means of the infinite tensor product states (iTPS) ansatz, we investigated magnetization process of the models numerically. We show that in the model corresponding to the compound [1], a part of spins reveals very strong spin fluctuation around the half of saturation magnetization. This is because spins connected by strong antiferromagnetic interaction form spin singlet. By varying the interaction strength, we show that such spin fluctuation is related to the 1/2 magnetization plateau stabilized in the vicinity of the model.
[1] H. Yamaguchi, Y. Sasaki, T. Okubo, et al, Phys. Rev. B 98, 094402 (2018).
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