Publication Date

10-18-2018

Department

Ames Laboratory; Physics and Astronomy

Campus Units

Ames Laboratory, Physics and Astronomy

OSTI ID+

1481018

Report Number

IS-J 9798

DOI

10.1103/PhysRevLett.121.167203

Journal Title

Physical Review Letters

Volume Number

121

Issue Number

16

First Page

167203

Abstract

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.

DOE Contract Number(s)

NSF-DMR 1534741; SC0017862; AC02-07CH11358; MOE2014-T2-2-112; NRF-NRFI2015-04

Language

en

Department of Energy Subject Categories

36 MATERIALS SCIENCE

Publisher

Iowa State University Digital Repository, Ames IA (United States)

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