Ground state and stability of the fractional plateau phase in metallic Shastry-Sutherland system TmB₄.

ABSTRACT: We present a study of the ground state and stability of the fractional plateau phase (FPP) with M/M_sat = 1/8 in the metallic Shastry-Sutherland system TmB₄. Magnetization (M) measurements show that the FPP states are thermodynamically stable when the sample is cooled in constant magnetic field from the paramagnetic phase to the ordered one at 2 K. On the other hand, after zero-field cooling and subsequent magnetization these states appear to be of dynamic origin. In this case the FPP states are closely associated with the half plateau phase (HPP, M/M_sat = ½), mediate the HPP to the low-field antiferromagnetic (AF) phase and depend on the thermodynamic history. Thus, in the same place of the phase diagram both, the stable and the metastable (dynamic) fractio

SUBMITTER: Orendac M 

PROVIDER: S-EPMC7994547 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature