Mössbauer studies of hyperfine fields in disordered Fe2CrAl

Pramana

J Varma¹  N Lakshmi¹  K Venugopalan¹ 

[1] Department of Physics, Mohanlal Sukhadia University, Udaipur 313 001, India$$

关键词: Mössbauer spectroscopy;    disordered alloy;    magnetic hyperfine fields.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Heusler-like alloy Fe2CrAl was prepared and studied. Structure determination was done by X-ray. The structure was found to conform to the B2 type. Magnetic hyperfine fields in this sample were studied by the Mössbauer effect. The Mössbauer spectra were recorded over a range of temperature from 40 to 296 K. The Mössbauer spectra showed the co-existence of a paramagnetic part with a magnetic hyperfine portion at all recorded temperatures. Even with the distribution in the magnetic hyperfine field, the average hyperfine field follows the $(T=T_{c})^{3/2}$ law. The paramagnetic part of the hyperfine field is explained in terms of the clustering of Cr atoms.

【 授权许可】

Unknown