Staggered-field effect on the magnetic-field-induced magnetization of the one-dimensional antiferromagnet Yb4As3

Kazuaki Iwasa; Masahumi Kohgi; Arsen Gukasov; Jean Michel Mignot; Naokazu Shibata; Akira Ochiai; Hidekazu Aoki; Takashi Suzuki

Staggered-field effect on the magnetic-field-induced magnetization of the one-dimensional antiferromagnet Yb₄As₃

Kazuaki Iwasa, Masahumi Kohgi, Arsen Gukasov, Jean Michel Mignot, Naokazu Shibata, Akira Ochiai, Hidekazu Aoki, Takashi Suzuki

SCI - Physics

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

11 Citations (Scopus)

Abstract

Magnetic properties in the charge-ordered phase of Yb₄As₃ have been studied by polarized-neutron diffraction. It is revealed that one-dimensional (1D) chains of magnetic Yb³⁺ ions are formed by charge ordering below 290 K. The field-induced magnetic moment on the 1D chain under a field parallel to the chain behaves as that of a spin-1/2 1D Heisenberg antiferromagnet with a g factor g_∦=2.9. In the case of a field perpendicular to the chain, we observed a pronounced enhancement below about 10 K. The observed enhancement of the field-induced magnetization is reproduced well by a theory which takes into account the staggered-field effect due to the Dzyaloshinsky-Moriya interaction within the 1D magnetic chain.

Original language	English
Article number	052408
Pages (from-to)	524081-524084
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	5
Publication status	Published - 2002 Feb 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

Staggered-field effect on the magnetic-field-induced magnetization of the one-dimensional antiferromagnet Yb₄As₃. / Iwasa, Kazuaki; Kohgi, Masahumi; Gukasov, Arsen; Mignot, Jean Michel; Shibata, Naokazu; Ochiai, Akira; Aoki, Hidekazu; Suzuki, Takashi.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 65, No. 5, 052408, 01.02.2002, p. 524081-524084.

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

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abstract = "Magnetic properties in the charge-ordered phase of Yb4As3 have been studied by polarized-neutron diffraction. It is revealed that one-dimensional (1D) chains of magnetic Yb3+ ions are formed by charge ordering below 290 K. The field-induced magnetic moment on the 1D chain under a field parallel to the chain behaves as that of a spin-1/2 1D Heisenberg antiferromagnet with a g factor g∦=2.9. In the case of a field perpendicular to the chain, we observed a pronounced enhancement below about 10 K. The observed enhancement of the field-induced magnetization is reproduced well by a theory which takes into account the staggered-field effect due to the Dzyaloshinsky-Moriya interaction within the 1D magnetic chain.",

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AU - Mignot, Jean Michel

AU - Shibata, Naokazu

AU - Ochiai, Akira

AU - Aoki, Hidekazu

AU - Suzuki, Takashi

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N2 - Magnetic properties in the charge-ordered phase of Yb4As3 have been studied by polarized-neutron diffraction. It is revealed that one-dimensional (1D) chains of magnetic Yb3+ ions are formed by charge ordering below 290 K. The field-induced magnetic moment on the 1D chain under a field parallel to the chain behaves as that of a spin-1/2 1D Heisenberg antiferromagnet with a g factor g∦=2.9. In the case of a field perpendicular to the chain, we observed a pronounced enhancement below about 10 K. The observed enhancement of the field-induced magnetization is reproduced well by a theory which takes into account the staggered-field effect due to the Dzyaloshinsky-Moriya interaction within the 1D magnetic chain.

AB - Magnetic properties in the charge-ordered phase of Yb4As3 have been studied by polarized-neutron diffraction. It is revealed that one-dimensional (1D) chains of magnetic Yb3+ ions are formed by charge ordering below 290 K. The field-induced magnetic moment on the 1D chain under a field parallel to the chain behaves as that of a spin-1/2 1D Heisenberg antiferromagnet with a g factor g∦=2.9. In the case of a field perpendicular to the chain, we observed a pronounced enhancement below about 10 K. The observed enhancement of the field-induced magnetization is reproduced well by a theory which takes into account the staggered-field effect due to the Dzyaloshinsky-Moriya interaction within the 1D magnetic chain.

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Staggered-field effect on the magnetic-field-induced magnetization of the one-dimensional antiferromagnet Yb₄As₃

Abstract

ASJC Scopus subject areas

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