Volume 127, Number 2, July 2019
|Number of page(s)||3|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||29 August 2019|
Debye temperature of single-crystal Cr with incommensurate and commensurate magnetic structure
1 AGH University of Science and Technology, Faculty of Physics and Applied Computer Science PL-30-059 Kraków, Poland
2 AGH University of Science and Technology, Academic Center for Materials and Nanotechnology PL-30-059 Kraków, Poland
Received: 7 March 2019
Accepted: 15 July 2019
Single crystals of Cr and Cr3%Mn doped with ∼0.2 at.% 119Sn were studied by means of 119Sn-site Mössbauer spectroscopy. Mössbauer spectra recorded in the temperature range of 78–300 K were analyzed using a hyperfine field distribution method. Additionally, the spectra recorded on the Cr3%Mn sample were analyzed in terms of three sextets. Derived therefrom values of a center shift, CS, were fitted to the Debye model yielded values of the Debye temperature, for Cr and for Cr3%Mn. The difference in the -value can be regarded as evidence that a spin-phonon coupling is different for the incommensurate and commensurate antiferromagnetic magnetic structure of chromium.
PACS: 63.20.kd – Phonon-electron interactions / 76.80.+y – Mössbauer effect; other γ-ray spectroscopy
© EPLA, 2019
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