Spin-orbit coupling inactivity of Co2+ ion in geometrically frustrated magnet GeCo2O4

Keisuke Tomiyasu, Ayaka Tominaga, Shigeo Hara, Hirohiko Sato, Tadataka Watanabe, Shin Ichi Ikeda, Haruhiro Hiraka, Kazuaki Iwasa, Kazuyoshi Yamada

研究成果: Conference article査読

5 被引用数 (Scopus)

抄録

We report single-crystal neutron diffraction studies on a spinel antiferromagnet GeCo2O4, which exhibits magnetic order with a trigonal propagation vector and tetragonal lattice expansion (c/a ≃ 1.001) below TN 21 = K. For this inconsistency between spin and lattice in symmetry, magnetic Bragg reflections with a tetragonal propagation vector were discovered below TN. We discuss spin and orbital states of Co2+ ion underlying the new magnetic component.

本文言語English
論文番号012038
ジャーナルJournal of Physics: Conference Series
320
DOI
出版ステータスPublished - 2011
イベントInternational Conference on Frustration in Condensed Matter, ICFCM - Sendai, Japan
継続期間: 2011 1月 112011 1月 14

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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