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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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Official URL: http://dx.doi.org/10.1063/1.3675997

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
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.ernet.in/id/eprint/44669

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