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Title: Origin of modulated phases and magnetic hysteresis in TmB 4

In this study, we investigate the low-temperature magnetic phases in TmB 4, a metallic quantum magnet on the geometrically frustrated Shastry-Sutherland lattice, using coordinated experimental and theoretical studies. Our results provide an explanation for the appearance of the intriguing fractional plateau in TmB 4 and accompanying magnetic hysteresis. Together with observation of the bump in the half plateau, our results support the picture that the magnetization plateau structure in TmB 4 is strongly influenced by the zero-field modulated phases. We present a phenomenological model to explain the appearance of the modulated phases and a microscopic Hamiltonian that captures the complete magnetic behavior of TmB 4.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [2] ;  [1] ;  [1]
  1. Nanyang Technological Univ. (Singapore)
  2. Iowa State Univ., Ames, IA (United States)
  3. National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki (Japan)
Publication Date:
Report Number(s):
IS-J-8906
Journal ID: ISSN 1098-0121; PRBMDO
Grant/Contract Number:
AC02-07CH11358
Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 21; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1239160
Alternate Identifier(s):
OSTI ID: 1233890