Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4

The 1/8 fractional plateau phase (1/8 FPP) in Shastry-Sutherland lattice (SSL) spin systems has been viewed an exemplar of emergence on an Archimedean lattice. Here we explore this phase in the Ising magnet TmB4 using high-resolution specific heat (C) and magnetization (M) in the field-temperature p...

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Main Authors: Trinh, Jennifer, Mitra, Sreemanta, Panagopoulos, Christos, Kong, Tai, Canfield, Paul C., Ramirez, Arthur P.
Other Authors: School of Physical and Mathematical Sciences
Format: Journal Article
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/106007
http://hdl.handle.net/10220/47417
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author Trinh, Jennifer
Mitra, Sreemanta
Panagopoulos, Christos
Kong, Tai
Canfield, Paul C.
Ramirez, Arthur P.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Trinh, Jennifer
Mitra, Sreemanta
Panagopoulos, Christos
Kong, Tai
Canfield, Paul C.
Ramirez, Arthur P.
author_sort Trinh, Jennifer
collection NTU
description The 1/8 fractional plateau phase (1/8 FPP) in Shastry-Sutherland lattice (SSL) spin systems has been viewed an exemplar of emergence on an Archimedean lattice. Here we explore this phase in the Ising magnet TmB4 using high-resolution specific heat (C) and magnetization (M) in the field-temperature plane. We show that the 1/8 FPP is smoothly connected to the antiferromagnetic phase on ramping the field from H=0. Thus, the 1/8 FPP is not a distinct thermodynamic ground state of TmB4. The implication of these results for Heisenberg spins on the SSL is discussed.
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spelling ntu-10356/1060072023-02-28T19:39:56Z Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4 Trinh, Jennifer Mitra, Sreemanta Panagopoulos, Christos Kong, Tai Canfield, Paul C. Ramirez, Arthur P. School of Physical and Mathematical Sciences Antiferromagnetic Phases DRNTU::Science::Physics Shastry-Sutherland Lattice The 1/8 fractional plateau phase (1/8 FPP) in Shastry-Sutherland lattice (SSL) spin systems has been viewed an exemplar of emergence on an Archimedean lattice. Here we explore this phase in the Ising magnet TmB4 using high-resolution specific heat (C) and magnetization (M) in the field-temperature plane. We show that the 1/8 FPP is smoothly connected to the antiferromagnetic phase on ramping the field from H=0. Thus, the 1/8 FPP is not a distinct thermodynamic ground state of TmB4. The implication of these results for Heisenberg spins on the SSL is discussed. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2019-01-08T03:42:00Z 2019-12-06T22:02:47Z 2019-01-08T03:42:00Z 2019-12-06T22:02:47Z 2018 Journal Article Trinh, J., Mitra, S., Panagopoulos, C., Kong, T., Canfield, P. C., & Ramirez, A. P. (2018). Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4. Physical Review Letters, 121(16), 167203-. doi:10.1103/PhysRevLett.121.167203 0031-9007 https://hdl.handle.net/10356/106007 http://hdl.handle.net/10220/47417 10.1103/PhysRevLett.121.167203 en Physical Review Letters © 2018 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society. 6 p. application/pdf
spellingShingle Antiferromagnetic Phases
DRNTU::Science::Physics
Shastry-Sutherland Lattice
Trinh, Jennifer
Mitra, Sreemanta
Panagopoulos, Christos
Kong, Tai
Canfield, Paul C.
Ramirez, Arthur P.
Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4
title Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4
title_full Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4
title_fullStr Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4
title_full_unstemmed Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4
title_short Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4
title_sort degeneracy of the 1 8 plateau and antiferromagnetic phases in the shastry sutherland magnet tmb4
topic Antiferromagnetic Phases
DRNTU::Science::Physics
Shastry-Sutherland Lattice
url https://hdl.handle.net/10356/106007
http://hdl.handle.net/10220/47417
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