TY - JOUR
T1 - Interplay between structure and magnetism in the spin-chain compound (Cu, Zn)2V2O7
AU - Pommer, J.
AU - Kataev, V.
AU - Choi, K. Y.
AU - Lemmens, P.
AU - Ionescu, A.
AU - Pashkevich, Yu
AU - Freimuth, A.
AU - Güntherodt, G.
PY - 2003/6/9
Y1 - 2003/6/9
N2 - The structural and magnetic properties of the one-dimensional spin-chain compound Cu2−yZnyV2O7 were investigated by means of x-ray diffraction, static susceptibility, and electron spin resonance. The substitution of nonmagnetic Zn2+ for Cu2+ ions induces a polymorphic transition from the α phase, found for y < 0.15, to the β phase, which occurs for y > 0.15. This transition has a pronounced influence on the magnetic properties, which can be understood consistently by assuming that the intrachain Dzyaloshinsky-Moriya interaction is present in the α phase, but absent in the β phase. This interpretation is confirmed by a symmetry analysis of the structural and magnetic properties. Our results indicate that the local coordination geometry of Cu in the two phases is decisive for the magnetic properties.
AB - The structural and magnetic properties of the one-dimensional spin-chain compound Cu2−yZnyV2O7 were investigated by means of x-ray diffraction, static susceptibility, and electron spin resonance. The substitution of nonmagnetic Zn2+ for Cu2+ ions induces a polymorphic transition from the α phase, found for y < 0.15, to the β phase, which occurs for y > 0.15. This transition has a pronounced influence on the magnetic properties, which can be understood consistently by assuming that the intrachain Dzyaloshinsky-Moriya interaction is present in the α phase, but absent in the β phase. This interpretation is confirmed by a symmetry analysis of the structural and magnetic properties. Our results indicate that the local coordination geometry of Cu in the two phases is decisive for the magnetic properties.
UR - https://www.scopus.com/pages/publications/0038715055
U2 - 10.1103/PhysRevB.67.214410
DO - 10.1103/PhysRevB.67.214410
M3 - Article
AN - SCOPUS:0038715055
SN - 1098-0121
VL - 67
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 21
ER -