@article{8088868e5ab049a2aa85c57ee6d2885b,
title = "Degeneracy of the 1/8 Plateau and Antiferromagnetic Phases in the Shastry-Sutherland Magnet TmB4",
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.",
author = "Jennifer Trinh and Sreemanta Mitra and Christos Panagopoulos and Tai Kong and Canfield, {Paul C.} and Ramirez, {Arthur P.}",
note = "Funding Information: This work was supported by the U.S. National Science Foundation Grant No. NSF-DMR 1534741 (J. T.), U.S. Department of Energy Grant No. DE-SC0017862 (A. P. R.), Ministry of Education, Singapore MOE2014-T2-2-112 (S. M. and C. P.), and the Singapore National Research Foundation, Investigatorship NRF-NRFI2015-04 (S. M. and C. P.). Work at Ames Lab (P. C. C. and T. K.) was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. We would also like to thank Sriram Shastry and Steve Simon for helpful insights. Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = oct,
day = "18",
doi = "10.1103/PhysRevLett.121.167203",
language = "English (US)",
volume = "121",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "16",
}