Автор |
Y C Akgoz |
Автор |
G A Saunders |
Дата выпуска |
1975-09-21 |
dc.description |
For pt.I see abstr. A50562 of 1975. The forms of the magnetothermoelectric power tensor alpha <sub>ij</sub>(B) for each of the 32 point groups have been obtained by use of the transformation law for field-dependent tensors in conjunction with Neumann's principle. These forms provide a fundamental base for studies of the thermomagnetic effects; the even and odd terms of alpha <sub>ij</sub>(B) in magnetic induction B are defined as the magneto-Seebeck and Nernst effects respectively. The symmetry restrictions imposed in current expressions for the phonon-drag and diffusion thermopowers are shown to produce different forms for alpha <sub>ij</sub>(B); these two contributions to the magnetothermoelectric power can be separated by a detailed study of certain components of alpha <sub>ij</sub>(B). An an example, the form taken by alpha <sub>ij</sub>(B) for bismuth is discussed. It is shown from both phenomenological and band-structure considerations that the appearance of the Umkehr effect in alpha <sub>ij</sub>(B) is not anomalous but is a direct result of crystal anisotropy. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Space-time symmetry restrictions on the form of transport tensors. II. Thermomagnetic effects |
Тип |
paper |
DOI |
10.1088/0022-3719/8/18/016 |
Print ISSN |
0022-3719 |
Журнал |
Journal of Physics C: Solid State Physics |
Том |
8 |
Первая страница |
2962 |
Последняя страница |
2970 |
Аффилиация |
Y C Akgoz; Dept. of Appl. Phys. & Electronics, Univ. of Durham, Durham, UK |
Аффилиация |
G A Saunders; Dept. of Appl. Phys. & Electronics, Univ. of Durham, Durham, UK |
Выпуск |
18 |