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

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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 languageEnglish
Article number044709
JournalJournal of the Physical Society of Japan
Volume75
Issue number4
DOIs
Publication statusPublished - Apr 1 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Yoshida, M., Hirano, T., Inagaki, Y., Okubo, S., Ohta, H., Kikuchi, H., Kagomiya, I., Toki, M., & Kohn, K. (2006). High field ESR study of three dimensional spin frustrated system MgCr 2O 4 . Journal of the Physical Society of Japan, 75(4), [044709]. https://doi.org/10.1143/JPSJ.75.044709