Tuning the magnetic ground state in LixNi(2-x)O2

Sow, Chanchal and Kumar, Anil PS (2012) Tuning the magnetic ground state in LixNi(2-x)O2. In: JOURNAL OF APPLIED PHYSICS, 111 (7).

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Abstract

The experimental determination of the magnetic ground state of triangular lattice anti-ferromagnet LiNiO2 is an intriguing problem as the system is prone to be Li deficient. We have been successful in preparing nearly stoichiometric LiNiO2 showing an anti-ferromagnetic ground state with an ordering temperature similar to 12 K. As the Li deficiency increases the sample exhibits spin glass behavior evidenced by a shift in the spin glass freezing temperature as a function of frequency in the ac susceptibility studies. As the Li deficiency crosses a critical limit, the sample becomes ferromagnetic in nature. We are able to tune the ferromagnetic transition temperature up to 240 K by varying the Li content. Finally, we have constructed a magnetic phase diagram. (C) 2012 American Institute of Physics. doi:10.1063/1.3675997]

Item Type:	Journal Article
Publication:	JOURNAL OF APPLIED PHYSICS
Publisher:	American Institute of Physics
Additional Information:	Copyright for this article belongs to the American Institute of Physics
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	06 Aug 2012 07:20
Last Modified:	06 Aug 2012 07:20
URI:	http://eprints.iisc.ac.in/id/eprint/44669

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