| Autor: |
Schuchert, H., Hüfner, S., Faulhaber, R. |
| Zdroj: |
Zeitschrift für Physik; 1969, Vol. 222 Issue 2, p105-127, 23p |
| Abstrakt: |
We have investigated the optical absorption spectra of metamagnetic DyAlO ( T=3.4 °K) above and below the Néel temperature. We find that the magnetic interactions are predominantly between the ions along the crystallographic c-axis; the interaction energy between two ions is W=− (2.9±0.6) cm. Additional line-shifts below 3.4 °K yield the Néel temperature. Zeeman effect studies give the magnetic moment of the groundstate as μ=(9.2 ± 0.9)μ. The direction of the magnetic moments is in the a-b plane, with angles of ± 33.5° and ± 146.5° from the b-axis. The Zeeman effect studies reveal two metamagnetic transitions (for H∥μ) at 7.0 and 7.3 kOe respectively. Additional susceptibility and Mössbauer measurements confirm the Néel temperature and the magnetic moment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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