Multiferroicity due to nonstoichiometry in the chain cuprate LiVCuO4
作者： A. S. Moskvin , S.-L. Drechsler
DOI: 10.1209/0295-5075/81/57004
关键词: Spin (physics) 、 Multiferroics 、 Ion 、 Substituent 、 Cuprate 、 Condensed matter physics 、 Polarization density 、 Chain (algebraic topology) 、 Physics
摘要: The recently observed multiferroic behavior in the s=1/2 chain cuprate LiVCuO4 (≡LiCuVO4) with edge-shared CuO4 plaquettes and helical spin ordering does not agree existing theories such as a spin-current scenario. We argue that effect can be consistently explained, if exchange-induced electric polarization on out-of-chain Cu2+ centers substituting for Li ions is taken into account. These substituent are proved to an effective probe of incommensurability magnetic-field effects.
harvard.edu
arxiv-vanity.com参考文章(3)
D. Altermatt, I. D. Brown, The automatic searching for chemical bonds in inorganic crystal structures Acta Crystallographica Section B-structural Science. ,vol. 41, pp. 240- 244 ,(1985) , 10.1107/S0108768185002051
M Enderle, C Mukherjee, B Fåk, R. K Kremer, J.-M Broto, H Rosner, S.-L Drechsler, J Richter, J Malek, A Prokofiev, W Assmus, S Pujol, J.-L Raggazzoni, H Rakoto, M Rheinstädter, H. M Rønnow, Quantum helimagnetism of the frustrated spin-1/2 chain LiCuVO4 EPL. ,vol. 70, pp. 237- 243 ,(2005) , 10.1209/EPL/I2004-10484-X
M G Banks, F Heidrich-Meisner, A Honecker, H Rakoto, J-M Broto, R K Kremer, High field magnetization of the frustrated one-dimensional quantum antiferromagnet LiCuVO4 Journal of Physics: Condensed Matter. ,vol. 19, pp. 145227- ,(2007) , 10.1088/0953-8984/19/14/145227