Bhat, V. ; Rao, C. N. R. ; Honig, J. M. (1992) Superconductivity of La2−ySryCu1−xNixO4+δ (y=0.1, 0.2; 0≤x≤0.5). The hole-compensating effect of Ni Physica C: Superconductivity, 191 (1-2). pp. 271-176. ISSN 0921-4534
Full text not available from this repository.
Official URL: http://linkinghub.elsevier.com/retrieve/pii/092145...
Related URL: http://dx.doi.org/10.1016/0921-4534(92)90658-Y
Abstract
Magnetization measurements below 50 K on ceramic La2−ySryCu1−xNixO4+δ (y=0.1, 0.2; ≤x≤0.5) show a progressive diminution of superconducting properties with increasing x. The larger suppressive action of Ni in the y=0.1 system than that for y=0.2 is attributed to the hole-compensating effect of Ni3+. The assumption that nickel is in the 3+ state satisfactorily explains: (1) the reduction in hole concentration, (2) a right-shift of the Tc versus y curve with x, and (3) the low magnetic moment carried by Ni atoms, in the La2−ySryCu1−xNixO4+δ system.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 42147 |
| Deposited On: | 02 Jun 2011 05:58 |
| Last Modified: | 02 Jun 2011 05:58 |
Repository Staff Only: item control page
