Interplay of crystalline and magnetic structures in TbxTm1−x system

Autor: V.S Zasimov, B Lebech, A.S Il'iushin, D. I. Kosarev, A. Vl. Andrianov
Rok vydání: 2002
Předmět:
Zdroj: ResearcherID
ISSN: 0304-8853
DOI: 10.1016/s0304-8853(02)00294-9
Popis: A set of single crystal Tb x Tm 1− x rare-earth alloys was examined by X-ray diffraction. The temperature dependencies of the HCP lattice parameters c and a in the range 30–300 K were obtained and the results were compared to data derived from the temperature dependencies of the magnetic structures in the same samples. The characteristic square-root dependence of the magnetic wave vector on the c / a ratio at the Neel temperature was observed. This result is consistent with the “nesting” hypothesis that links the formation of the long-periodic magnetic structures in the heavy rare-earth metals to the shape of the Fermi surface.
Databáze: OpenAIRE