Resonant magnetic x-ray diffraction study on successive metamagnetic transitions in tbb 4

Toshiya Inami; Kenji Ohwada; Yasuhiro H. Matsuda; Zhong Wen Ouyang; Hiroyuki Nojiri; Takeshi Matsumura; Daisuke Okuyama; Youichi Murakami

doi:10.1143/JPSJ.78.033707

Resonant magnetic x-ray diffraction study on successive metamagnetic transitions in tbb ₄

Toshiya Inami, Kenji Ohwada, Yasuhiro H. Matsuda, Zhong Wen Ouyang, Hiroyuki Nojiri, Takeshi Matsumura, Daisuke Okuyama, Youichi Murakami

IMR - Institute for Materials Research (institute affiliation only)

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

16 Citations (Scopus)

Abstract

Resonant magnetic x-ray diffraction experiments on the Shastry-Sutherland lattice TbB ₄ were carried out under pulsed magnetic fields up to 30 T at 8 K. TbB ₄ exhibits a multi-step magnetization process above 16 T below about 20K when magnetic fields are applied along the c-axis. We examined the intensity of the 010 magnetic reflection as a function of magnetic field and found that the magnetization plateau phases are accompanied by large XY components of magnetic moments. We propose novel magnetic structures which consist of XY spins and Ising spins for the plateau phases. We also propose that energy level crossing and its inherent degeneracy give rise to the successive metamagnetic transitions in TbB ₄.

Original language	English
Article number	033707
Journal	Journal of the Physical Society of Japan
Volume	78
Issue number	3
DOIs	https://doi.org/10.1143/JPSJ.78.033707
Publication status	Published - 2009 Mar

Keywords

Rare-earth tetraboride
Resonant magnetic x-ray diffraction
Shastry-Sutherland lattice

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10.1143/JPSJ.78.033707

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title = "Resonant magnetic x-ray diffraction study on successive metamagnetic transitions in tbb 4 ",

abstract = "Resonant magnetic x-ray diffraction experiments on the Shastry-Sutherland lattice TbB 4 were carried out under pulsed magnetic fields up to 30 T at 8 K. TbB 4 exhibits a multi-step magnetization process above 16 T below about 20K when magnetic fields are applied along the c-axis. We examined the intensity of the 010 magnetic reflection as a function of magnetic field and found that the magnetization plateau phases are accompanied by large XY components of magnetic moments. We propose novel magnetic structures which consist of XY spins and Ising spins for the plateau phases. We also propose that energy level crossing and its inherent degeneracy give rise to the successive metamagnetic transitions in TbB 4.",

keywords = "Rare-earth tetraboride, Resonant magnetic x-ray diffraction, Shastry-Sutherland lattice",

author = "Toshiya Inami and Kenji Ohwada and Matsuda, {Yasuhiro H.} and Ouyang, {Zhong Wen} and Hiroyuki Nojiri and Takeshi Matsumura and Daisuke Okuyama and Youichi Murakami",

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T1 - Resonant magnetic x-ray diffraction study on successive metamagnetic transitions in tbb 4

AU - Inami, Toshiya

AU - Ohwada, Kenji

AU - Matsuda, Yasuhiro H.

AU - Ouyang, Zhong Wen

AU - Nojiri, Hiroyuki

AU - Matsumura, Takeshi

AU - Okuyama, Daisuke

AU - Murakami, Youichi

PY - 2009/3

Y1 - 2009/3

N2 - Resonant magnetic x-ray diffraction experiments on the Shastry-Sutherland lattice TbB 4 were carried out under pulsed magnetic fields up to 30 T at 8 K. TbB 4 exhibits a multi-step magnetization process above 16 T below about 20K when magnetic fields are applied along the c-axis. We examined the intensity of the 010 magnetic reflection as a function of magnetic field and found that the magnetization plateau phases are accompanied by large XY components of magnetic moments. We propose novel magnetic structures which consist of XY spins and Ising spins for the plateau phases. We also propose that energy level crossing and its inherent degeneracy give rise to the successive metamagnetic transitions in TbB 4.

AB - Resonant magnetic x-ray diffraction experiments on the Shastry-Sutherland lattice TbB 4 were carried out under pulsed magnetic fields up to 30 T at 8 K. TbB 4 exhibits a multi-step magnetization process above 16 T below about 20K when magnetic fields are applied along the c-axis. We examined the intensity of the 010 magnetic reflection as a function of magnetic field and found that the magnetization plateau phases are accompanied by large XY components of magnetic moments. We propose novel magnetic structures which consist of XY spins and Ising spins for the plateau phases. We also propose that energy level crossing and its inherent degeneracy give rise to the successive metamagnetic transitions in TbB 4.

KW - Rare-earth tetraboride

KW - Resonant magnetic x-ray diffraction

KW - Shastry-Sutherland lattice

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Resonant magnetic x-ray diffraction study on successive metamagnetic transitions in tbb ₄

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Keywords

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