Ganguly, P. ; Ramaswamy, V. ; Mulla, I. S. ; Shinde, R. F. ; Bakare, P. P. ; Ganapathy, S. ; Rajamohanan, P. R. ; Prakash, N. V. K. (1992) Application of a layered triangular-lattice magnetic model system to LiNiO2 Physical Review Letters, 46 (18). pp. 11595-11600. ISSN 0031-9007
Full text not available from this repository.
Official URL: http://prb.aps.org/abstract/PRB/v46/i18/p11595_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.46.11595
Abstract
The magnetic susceptibility of LiNiO2 can be described by a high-temperature Curie-Weiss law that is typical of ferromagnets but without spontaneous magnetization at low temperatures. We find that some of the ESR features of LiNiO2 below 40 K which were earlier attributed to a quantum spin-liquid state are present at higher temperatures around 240 K in Li0.3Ni0.7O. This behavior is typical of superparamagnetic domains. The magnitude of the 7Li NMR anisotropic paramagnetic dipolar shift in La2Li0.5Ni0.5O4 and LiNiO2 suggests that the moment is localized predominantly on Ni ions. Arguments are presented to suggest that the systematics are consistent with the predominant creation of holes on Ni on the substitution of Ni by Li in NiO. The same conclusion is drawn from the ESR studies.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 13767 |
| Deposited On: | 12 Nov 2010 14:46 |
| Last Modified: | 31 May 2011 09:48 |
Repository Staff Only: item control page
