Debye temperatures of uranium chalcogenides from their lattice dynamics

Bulletin of materials science

P Babu¹  S Durai¹ 

[1] Postgraduate and Research Department of Physics, A.M. Jain College, Chennai 600 114, India$$Postgraduate and Research Department of Physics, A.M. Jain College, Chennai 600 114, IndiaPostgraduate and Research Department of Physics, A.M. Jain College, Chennai 600 114, India$$

关键词: Uranium chalcogenides;    ð‘�?-wave electronic superconductor;    phonon frequency;    Debye temperature;    spin fluctuation.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Phonon dispersion relations in uranium chalcogenides have been investigated using a modified three-body force shell model. From the phonon frequencies, their Debye temperatures are evaluated. Further, on the basis of the spin fluctuation in the heavy fermion uranium compounds, UPt₃ and UBe₁₃, the possible superconducting transition temperatures of chalcogenides are theoretically predicted. The ð‘�??_c values are in the same range as of those in UPt₃ and UBe₁₃.

【 授权许可】

Unknown