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Crystallographic distortion in CrAs0.50Sb0.50 |
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| Authors: | A. Kallel Mahmoud Nasr-Eddine Herbert Boller |
| Affiliation: | Départment de Recherche Fondamentale, Laboratoire de Diffraction Neutronique, Centre d''Etudes Nucléaires de Grenoble, France;Département de Recherche Fondamentale et CNRS France;Institute für Physikalische Chemie, A1090, Wien, Österreich, Australia |
| Abstract: | X-ray diffraction has shown that CrAs0.50Sb0.50 undergoes at the Néel temperature a crystallographic distortion (NiAs → MnP) accompanied by a discontinuous volume change. Neutron diffraction revealed in this compound a helimagnetic structure very similar to the ‘double spiral’ in CrAs discovered recently. The pressure dependence of the Néel temperature is estimated in the framework of the Bean Rodbell theory and compared with the CrAs value. |
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