Rajarajan, A. K. ; Gupta, L. C. ; Vijayaraghavan, R. ; Mishra, N. C. (1989) Nuclear quadrople resonance studies in Ga-doped YBa2(Cu1−xGax)3O7−δ (δ ⋍ 0.05) Physica C: Superconductivity, 162-164 . pp. 163-164. ISSN 0921-4534
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0921-4534(89)90968-4
Abstract
NQR measurements on YBa2(Cu1−xGax)3O7−δ (δ ⋍ 0.05) at 4.2K are reported. Resonance lines become broader with the introduction of Ga-ions suggesting a distribution of the electric field gradient (EFG) at the Cu-sites. EFG at both the sites is affected though Ga-ions occupy only the chain sites. Spin-lattice relaxation time reduces sharply with the increase of x which suggests strongly that certain copper atoms acquire magnetic moment as a consequence of introducing non magnetic gallium atoms.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 61923 |
| Deposited On: | 15 Sep 2011 11:49 |
| Last Modified: | 15 Sep 2011 11:49 |
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