Campus Units

Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

12-1-2015

Journal or Book Title

Physical Review B

Volume

92

Issue

21

First Page

214433

DOI

10.1103/PhysRevB.92.214433

Abstract

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.

Comments

This article is published as Wierschem, Keola, Sai Swaroop Sunku, Tai Kong, Toshimitsu Ito, Paul C. Canfield, Christos Panagopoulos, and Pinaki Sengupta. "Origin of modulated phases and magnetic hysteresis in TmB 4." Physical Review B 92, no. 21 (2015): 214433. DOI: 10.1103/PhysRevB.92.214433. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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