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Title: Origin of modulated phases and magnetic hysteresis in TmB4

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [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)

In this study, we investigate the low-temperature magnetic phases in TmB4, 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 TmB4 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 TmB4 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 TmB4.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1239160
Alternate ID(s):
OSTI ID: 1233890
Report Number(s):
IS-J-8906; PRBMDO
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 21; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (23)

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Fractalization drives crystalline states in a frustrated spin system journal December 2008
Incomplete Devil’s Staircase in the Magnetization Curve of SrCu 2 ( BO 3 ) 2 journal February 2013
Magnetic Structure and Phase Diagram of TmB 4 journal January 2008
Highly anisotropic magnetic phase diagram of a 2-dimensional orthogonal dimer system TmB4 journal March 2007
Fractional Magnetization Plateaus and Magnetic Order in the Shastry-Sutherland Magnet TmB 4 journal October 2008
Complex Magnetic Structures of a Shastry–Sutherland Lattice TmB 4 Studied by Powder Neutron Diffraction Analysis journal February 2009
Anisotropy and metamagnetism in the RNi2Ge2 (R=Y, La–Nd, Sm–Lu) series journal October 1999
Systematic study of anisotropic transport and magnetic properties of RAgSb2 (R=Y, La–Nd, Sm, Gd–Tm) journal October 1999
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Finite-temperature phase transition to the m = 1 2 plateau phase in the spin- 1 2 X X Z model on the Shastry-Sutherland lattices journal December 2010
Phases and magnetization process of an anisotropic Shastry-Sutherland model journal December 2008
Magnetization plateau of the classical Ising model on the Shastry-Sutherland lattice: A tensor renormalization-group approach journal March 2009
Ground States of the Ising Model on the Shastry-Sutherland Lattice and the Origin of the Fractional Magnetization Plateaus in Rare-Earth-Metal Tetraborides journal October 2012
Dynamic magnetization process in the frustrated Shastry-Sutherland system TmB 4 journal May 2013
Columnar Antiferromagnetic Order and Spin Supersolid Phase on the Extended Shastry-Sutherland Lattice journal May 2013
Rare-earth–boron bonding and 4f state trends in R B 4 tetraborides journal January 2008

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