TY - JOUR
T1 - Impact of orbital degrees of freedom on geometrical frustration in the kagome-like magnet SrVx Ga12-x O19
AU - Miyazaki, J.
AU - Sonehara, T.
AU - Akahoshi, D.
AU - Kuwahara, H.
AU - Kim, J. E.
AU - Kato, K.
AU - Takata, M.
AU - Katsufuji, T.
PY - 2009/5/1
Y1 - 2009/5/1
N2 - We studied kagome-like magnets, SrVx Ga12-x O19 with V3+ (3 d2 in the triply degenerate t2g states), as a geometrically frustrated spin system with orbital degrees of freedom. We observed a suppression of low-temperature spin entropy and an anomalous contraction of the V triangles on the kagome lattice, which can be regarded as the V trimerization with spin-singlet formation. This result, which is in clear contrast to their Cr3+ (3 d3) analogs exhibiting a spin-liquid behavior, indicates a substantial impact of orbitals on geometrically frustrated magnets.
AB - We studied kagome-like magnets, SrVx Ga12-x O19 with V3+ (3 d2 in the triply degenerate t2g states), as a geometrically frustrated spin system with orbital degrees of freedom. We observed a suppression of low-temperature spin entropy and an anomalous contraction of the V triangles on the kagome lattice, which can be regarded as the V trimerization with spin-singlet formation. This result, which is in clear contrast to their Cr3+ (3 d3) analogs exhibiting a spin-liquid behavior, indicates a substantial impact of orbitals on geometrically frustrated magnets.
UR - http://www.scopus.com/inward/record.url?scp=67649090899&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649090899&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.79.180410
DO - 10.1103/PhysRevB.79.180410
M3 - Article
AN - SCOPUS:67649090899
SN - 0163-1829
VL - 79
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
M1 - 180410
ER -