High field ESR study of three dimensional spin frustrated system MgCr 2O 4

Makoto Yoshida; Tomoya Hirano; Yuji Inagaki; Susumu Okubo; Hitoshi Ohta; Hikomitsu Kikuchi; Isao Kagomiya; Makoto Toki; Kay Kohn

doi:10.1143/JPSJ.75.044709

High field ESR study of three dimensional spin frustrated system MgCr 2O 4

Makoto Yoshida, Tomoya Hirano, Yuji Inagaki, Susumu Okubo, Hitoshi Ohta, Hikomitsu Kikuchi, Isao Kagomiya, Makoto Toki, Kay Kohn

Applied Physics

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

11 Citations (Scopus)

Abstract

High field ESR measurements of a single crystal of the spin frustrated spinel compound MgCr ₂O ₄ have been performed in the temperature range from 1.7 to 80K in the frequency range from 60 to 370 GHz. We found that MgCr ₂O ₄ is an easy-plane type antiferromagnet with the hard axis almost along the (100) direction below the Néel temperature T _N. In order to obtain more detailed information, we have performed high field ESR measurements in an attempt to align the domains by applying a weak biaxial or uniaxial pressure. These results indicate that the structural phase transition is accompanied by a contraction along one of the (100) directions and the contracted (100) direction becomes the magnetic hard axis below T _N.

Original language	English
Article number	044709
Journal	Journal of the Physical Society of Japan
Volume	75
Issue number	4
DOIs	https://doi.org/10.1143/JPSJ.75.044709
Publication status	Published - Apr 1 2006

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1143/JPSJ.75.044709

Cite this

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title = "High field ESR study of three dimensional spin frustrated system MgCr 2O 4 ",

abstract = "High field ESR measurements of a single crystal of the spin frustrated spinel compound MgCr 2O 4 have been performed in the temperature range from 1.7 to 80K in the frequency range from 60 to 370 GHz. We found that MgCr 2O 4 is an easy-plane type antiferromagnet with the hard axis almost along the (100) direction below the N{\'e}el temperature T N. In order to obtain more detailed information, we have performed high field ESR measurements in an attempt to align the domains by applying a weak biaxial or uniaxial pressure. These results indicate that the structural phase transition is accompanied by a contraction along one of the (100) directions and the contracted (100) direction becomes the magnetic hard axis below T N.",

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T1 - High field ESR study of three dimensional spin frustrated system MgCr 2O 4

AU - Yoshida, Makoto

AU - Hirano, Tomoya

AU - Inagaki, Yuji

AU - Okubo, Susumu

AU - Ohta, Hitoshi

AU - Kikuchi, Hikomitsu

AU - Kagomiya, Isao

AU - Toki, Makoto

AU - Kohn, Kay

PY - 2006/4/1

Y1 - 2006/4/1

N2 - High field ESR measurements of a single crystal of the spin frustrated spinel compound MgCr 2O 4 have been performed in the temperature range from 1.7 to 80K in the frequency range from 60 to 370 GHz. We found that MgCr 2O 4 is an easy-plane type antiferromagnet with the hard axis almost along the (100) direction below the Néel temperature T N. In order to obtain more detailed information, we have performed high field ESR measurements in an attempt to align the domains by applying a weak biaxial or uniaxial pressure. These results indicate that the structural phase transition is accompanied by a contraction along one of the (100) directions and the contracted (100) direction becomes the magnetic hard axis below T N.

AB - High field ESR measurements of a single crystal of the spin frustrated spinel compound MgCr 2O 4 have been performed in the temperature range from 1.7 to 80K in the frequency range from 60 to 370 GHz. We found that MgCr 2O 4 is an easy-plane type antiferromagnet with the hard axis almost along the (100) direction below the Néel temperature T N. In order to obtain more detailed information, we have performed high field ESR measurements in an attempt to align the domains by applying a weak biaxial or uniaxial pressure. These results indicate that the structural phase transition is accompanied by a contraction along one of the (100) directions and the contracted (100) direction becomes the magnetic hard axis below T N.

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High field ESR study of three dimensional spin frustrated system MgCr 2O 4

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