| タイトル | Temperature dependence of the anisotropy in magnetic relaxation in YBa2Cu3O(7-x) thin films |
| 著者（英） | Alterovitz, S. A.; Stan, M. A.; Vitta, Satish |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1991-03-01 |
| 言語 | eng |
| 内容記述 | The relaxation of diamagnetic magnetization in the c-axis-aligned YBa2Cu3O(7-x) thin film is studied as a function of orientation and temperature in the range of 5-50 K at H = 0.2 T. The magnetization M(T,H) in the orientations H parallel to c and H perpendicular to c and at all the temperatures is found to decrease logarithmically with time t. The activation energy for the movement of flux lines U is found to be 30-110 meV in the range 5-50 K. For H parallel c, U increases continuously with T, whereas for H perpendicular c, U has two apparent maxima: at T = 10 K and T greater than 50 K. These results are discussed in terms of the thermally activated flux motion model. |
| NASA分類 | SOLID-STATE PHYSICS |
| レポートNO | 91A36047 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/348427 |
|
