Title :
Structural, electronic and thermal properties of WN superconductors
Author :
Subhashree, G. ; Sankar, S. ; Sathyakumari, V.S. ; Krithiga, R.
Author_Institution :
Dept. of Phys., Anna Univ., Chennai, India
Abstract :
Self consistent first principle calculations on superconducting material WN in cubic phase (NaCl-type) have been performed to understand their fundamental characteristics of the structural, electronic and thermal properties. The bulk modulus (BO), Debye temperature (6D), density of states (N (EF)), electronic specific heat coefficient (γ) and electron-phonon coupling constant (λ) have been computed in terms of the electronic structure results obtained by using the tight-binding linear muffin tin orbital (TB-LMTO) method based on the density functional theory (DFT) within the local density approximation (LDA). Structural, Electronic and Thermal properties calculated here are found to corroborate well with the experimental and theoretical results of literature.
Keywords :
Debye temperature; SCF calculations; ab initio calculations; density functional theory; elastic moduli; electron-phonon interactions; electronic density of states; linear muffin-tin orbital method; specific heat; tight-binding calculations; tungsten compounds; DFT; Debye temperature; LDA; TB-LMTO method; WN; bulk modulus; cubic phase; density functional theory; density of states; electron-phonon coupling constant; electronic properties; electronic specific heat coefficient; electronic structure; local density approximation; self consistent first principle calculation; structural properties; superconducting material; thermal properties; tight-binding linear muffin tin orbital method; Approximation methods; Couplings; Heating; Lattices; Materials; Metals; Temperature; B1 phase; Debye temperature; band structure; specific heat coefficient; superconductors;
Conference_Titel :
Science Engineering and Management Research (ICSEMR), 2014 International Conference on
Print_ISBN :
978-1-4799-7614-0
DOI :
10.1109/ICSEMR.2014.7043645