Magnetic Properties of a Single Crystal of Manganese Phosphide
| Autor: | E. E. Huber, D. H. Ridgley |
|---|---|
| Rok vydání: | 1963 |
| Předmět: |
Physics
Magnetic measurements Materials science Condensed matter physics Field (physics) Phosphide General Physics and Astronomy chemistry.chemical_element Manganese Atmospheric temperature range Coupling (probability) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter::Materials Science chemistry.chemical_compound Ferromagnetism chemistry Ferrimagnetism Antiferromagnetism Curie temperature Condensed Matter::Strongly Correlated Electrons Anisotropy Spin (physics) Single crystal |
| Zdroj: | Journal of Applied Physics. 34:1099-1100 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.1729386 |
| Popis: | Magnetic measurements were made on a spherical single crystal of high-purity stoichiometric MnP with a vibrating-sample magnetometer which was modified to allow precise temperature control and temperature cycling from 4 to 500\ifmmode^\circ\else\textdegree\fi{}K. Anisotropy, saturation magnetization, and susceptibility data were obtained over this temperature range. The ferromagnetic Curie temperature was found to be 291.5\ifmmode\pm\else\textpm\fi{}0.2\ifmmode^\circ\else\textdegree\fi{}K. Evidence is presented which shows that MnP is neither ferrimagnetic nor antiferromagnetic, as has been previously supposed. Strong ferromagnetic coupling between spins may be assumed from the fact that the $\frac{1}{\ensuremath{\chi}}$ versus $T$ curve has strong concave-up curvature above the Curie point. A magnetic transformation, not previously reported, was observed at 50\ifmmode^\circ\else\textdegree\fi{}K which may be interpreted in terms of temperature-dependent, competing antiferromagnetic-ferromagnetic interactions. Below 50\ifmmode^\circ\else\textdegree\fi{}K, MnP is metamagnetic, i.e., it exhibits an antiferromagnetic-ferromagnetic transition which is a function of applied field and temperature. |
| Databáze: | OpenAIRE |
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