| Autor: |
R. Nathans, S. J. Pickart, P.J. Brown, H. A. Alperin |
| Rok vydání: |
1964 |
| Předmět: |
|
| Zdroj: |
Physical Review. 136:A1641-A1647 |
| ISSN: |
0031-899X |
| DOI: |
10.1103/physrev.136.a1641 |
| Popis: |
Polarized-neutron studies on natural and synthetic single crystals of hematite have shown that the 180\ifmmode^\circ\else\textdegree\fi{} antiferromagnetic domain walls are removed in low fields as the parasitic ferromagnetism of the high-temperature phase is saturated, and the remaining 120\ifmmode^\circ\else\textdegree\fi{} walls are removed by the application of higher fields. No memory effect was observed for the antiferromagnetic domain configuration as the crystal was cycled through the spin-axis transition temperature. The spin density of the ferromagnetic component of the spin system was found to be different from that of the antiferromagnetic component. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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