Orbital Glass State of the Nearly Metallic Spinel Cobalt Vanadate

R. Koborinai, S. E. Dissanayake, M. Reehuis, M. Matsuda, T. Kajita, H. Kuwahara, S. H. Lee, T. Katsufuji

研究成果: Article査読

21 被引用数 (Scopus)

抄録

Strain, magnetization, dielectric relaxation, and unpolarized and polarized neutron diffraction measurements were performed to study the magnetic and structural properties of spinel Co1-xV2+xO4. The strain measurement indicates that, upon cooling, ΔL/L in the order of ∼10-4 starts increasing below TC, becomes maximum at Tmax, and then decreases and changes its sign at T∗. Neutron measurements indicate that a collinear ferrimagnetic order develops below TC and upon further cooling noncollinear ferrimagnetic ordering occurs below Tmax. At low temperatures, the dielectric constant exhibits a frequency dependence, indicating slow dynamics. These results indicate the existence of an orbital glassy state at low temperatures in this nearly metallic frustrated magnet.

本文言語English
論文番号037201
ジャーナルPhysical Review Letters
116
3
DOI
出版ステータスPublished - 2016 1月 19

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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