Year: 1980
Type: article
Abstract: The antiferromagnetic structures of Cr-Si solid solutions in the range 1.5-6.0 at.% Si have been studied by neutron powder diffraction. The results confirm that the commensurate antiferromagnetic structure is stabilised at around 1.8 at.% Si. Both the magnetic moment and the Neel temperature are found to decrease with increasing silicon content and tend to zero at about 7.2 at.% Si. There is some evidence that the magnetic electrons are of E g symme-ry and it is suggested that the reduction of magnetic moment is due to the stabilisation of the I 2g relative to the E g electrons in the chromium band brought about by the formation of covalent bonds with silicon.
Authors: M M R Costa, K R A Ziebeck, P J Brown
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1985191983