Ganguli, A. K. ; Nagarajan, R. ; Ranga Rao, G. ; Vasanthacharya, N. Y. ; Rao, C. N. R. (1989) Elusive superconductivity in polycrystalline samples of layered lanthanum nickelates Solid State Communications, 72 (2). pp. 195-197. ISSN 0038-1098
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/003810...
Related URL: http://dx.doi.org/10.1016/0038-1098(89)90522-X
Abstract
La2−xNiO4, La2−xSrxNiO4 and related layered nickelates have been investigated for possible presence of superconductivity. While there is clear onset of diamagnetism around 20 K in many of these nickelates, we do not, however, find any anomaly in the electrical resistivity, magnetoresistance or thermopower around 20 K. High energy spectroscopic studies show Ni to be in the 2+ oxidation state accompanied by a substantial proportion of oxygen holes.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 42245 |
| Deposited On: | 02 Jun 2011 07:25 |
| Last Modified: | 03 Jul 2012 05:34 |
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