Structural and magnetic properties of quasi-one-dimensional doped LiCuVO₄

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• 作者：Abhishek Kumar ; Poonam Kumari ; A. Das ; G.D. Dwivedi ; P. Shahi ; K.K. Shukla ; A.K. Ghosh ; A.K. Nigam ; K.K. Chattopadhyay ; S ; ip Chatterjee
• 关键词：Spinel ; One dimensional quantum spin magnet ; Neutron diffraction ; Magnetization
• 刊名：Journal of Solid State Chemistry
• 出版年：December, 2013
• 年：2013
• 卷：208
• 期：Complete
• 页码：120-126
• 全文大小：1952 K

文摘

The Neutron diffraction, X-ray photoemission and Magnetic properties of Zn, Co and Mn-doped LiCuVO₄ were investigated. Both with Zn and Co doping the antiferromagnetic correlation increase. On the other hand Mn-doping induces the short range ferromagnetic ordering. Neutron diffraction study does not show any phase transition down to 5 K i.e., there is no indication of long range magnetic ordering. Neutron diffraction study also indicates that with Zn, Co and Mn doping the V-O lengths are changed. Maximum change in the V-O distances is observed for Mn-doped sample. On the other hand, X-ray photoemission spectroscopic data indicates Mn doping converts some Cu²⁺ ions into Cu³⁺ ions.