Magnetic properties of the S = 1/2 one-dimensional antiferromagnet MgVO
| Autor: | A. Stepanov, Volodymyr Pashchenko, Patrice Millet, Frédéric Mila, J. Choukroun, Y. Ksari, J. Dumas, P. Monod, R. Buder, J. Y. Henry |
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| Rok vydání: | 2000 |
| Předmět: |
Physics
Coupling constant Materials science Condensed matter physics Solid-state physics Heisenberg model Oxide Condensed Matter Physics Magnetic susceptibility Ion Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Transition metal chemistry law Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Electron paramagnetic resonance Néel temperature |
| Zdroj: | The European Physical Journal B. 14:655-659 |
| ISSN: | 1434-6036 1434-6028 |
| Popis: | The magnetic susceptibility and the electron spin resonance in the X-band of the transition metal oxide compound MgVO 3 are reported. We show that this compound, made of weakly coupled infinite chains of VO 5 pyramids, behaves as a S = 1/2 one-dimensional Heisenberg antiferromagnet. From the ESR and magnetic experiments we deduce the Neel temperature T N = 5.2 ± 0.5 K, the in-chain coupling constant J/k = 100±5 K and the g-factor values g x = g z = 1.972(2), g y = 1.946(1) for V 4+ ions in MgVO 3 . |
| Databáze: | OpenAIRE |
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