Sreedhar, K. ; Rao, C. N. R. (1990) Electrical and magnetic properties of La2−xSrxNiO4: a tentative phase diagram Materials Research Bulletin, 25 (10). pp. 1235-1242. ISSN 0025-5408
Full text not available from this repository.
Official URL: http://linkinghub.elsevier.com/retrieve/pii/002554...
Related URL: http://dx.doi.org/10.1016/0025-5408(90)90079-H
Abstract
La2−xSrxNiO4 shows a maximum in the c/a ratio around x=0.6 up to which composition the concentration of holes is equal to that expected theoretically. The material becomes a degenerate semiconductor above a certain temperature up to x=0.8, but is metallic at room temperature when x≥1.0. All the compositions with x≥0.05 are paramagnetic in the 15-300K range. Based on these measurements, an electronic phase diagram is tentatively proposed. It is noteworthy that the antiferromagnetic order disappears at low doping levels in both La2−xSrxNiO4 and La2−xSrxNiO4, but metallicity is seen at 300K only at a much higher x value in the former system.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Lanthanum; Strontium; Nickel; Oxides |
| ID Code: | 41867 |
| Deposited On: | 31 May 2011 12:11 |
| Last Modified: | 31 May 2011 12:11 |
Repository Staff Only: item control page
