TY - JOUR
T1 - Spin-orbit coupling inactivity of Co2+ ion in geometrically frustrated magnet GeCo2O4
AU - Tomiyasu, Keisuke
AU - Tominaga, Ayaka
AU - Hara, Shigeo
AU - Sato, Hirohiko
AU - Watanabe, Tadataka
AU - Ikeda, Shin Ichi
AU - Hiraka, Haruhiro
AU - Iwasa, Kazuaki
AU - Yamada, Kazuyoshi
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/320/1/012038
DO - 10.1088/1742-6596/320/1/012038
M3 - Conference article
AN - SCOPUS:81055125385
VL - 320
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
M1 - 012038
T2 - International Conference on Frustration in Condensed Matter, ICFCM
Y2 - 11 January 2011 through 14 January 2011
ER -