| Автор | Z D Genchev |
| Дата выпуска | 1993-07-01 |
| dc.description | The earliest high-T<sub>c</sub> oxide superconductors were generally studied in the form of porous polycrystalline pellets. As material preparation technology improved, resulting in samples with orientational order and a smaller concentration of impurity phases, the effects of granular behaviour did not disappear. In both the cases of disordered and partially-ordered structures, an important question arises as to how to interpret measured low-field resistivities in terms of the underlying anisotropic single-crystal values. This paper provides the answer to this question within the context of an effective-medium theory. The authors version of the effective-medium approximation attempts to describe the electrical properties of an inhomogeneous medium, consisting of a mixture of several types of anisotropic polycrystals with different degrees of orientational order. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Anisotropic electrical conductivity tensor of granular high-T<sub>c </sub>superconductors in an effective-medium theory |
| Тип | paper |
| DOI | 10.1088/0953-2048/6/7/014 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 6 |
| Первая страница | 532 |
| Последняя страница | 536 |
| Аффилиация | Z D Genchev; Inst. of Electron., Bulgarian Acad. of Sci., Sofia, Bulgaria |
| Выпуск | 7 |
