Origin of modulated phases and magnetic hysteresis in TmB4

Keola Wierschem; Sai Swaroop Sunku; Tai Kong; Toshimitsu Ito; Paul C. Canfield; Christos Panagopoulos; Pinaki Sengupta

doi:10.1103/PhysRevB.92.214433

Origin of modulated phases and magnetic hysteresis in TmB4

Keola Wierschem, Sai Swaroop Sunku, Tai Kong, Toshimitsu Ito, Paul C. Canfield, Christos Panagopoulos, Pinaki Sengupta

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

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.

Original language	English (US)
Article number	214433
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.92.214433
State	Published - Dec 23 2015
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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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.",

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AU - Wierschem, Keola

AU - Sunku, Sai Swaroop

AU - Kong, Tai

AU - Ito, Toshimitsu

AU - Canfield, Paul C.

AU - Panagopoulos, Christos

AU - Sengupta, Pinaki

PY - 2015/12/23

Y1 - 2015/12/23

N2 - 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.

AB - 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.

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Origin of modulated phases and magnetic hysteresis in TmB4

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