Phonons and superconductivity in the cubic perovskite Cr3RhN

Tütüncü, Hüseyin Murat

dc.contributor.authors	Tutuncu, HM; Srivastava, GP;
dc.date.accessioned	2020-01-20T08:02:05Z
dc.date.available	2020-01-20T08:02:05Z
dc.date.issued	2012
dc.identifier.citation	Tutuncu, HM; Srivastava, GP; (2012). Phonons and superconductivity in the cubic perovskite Cr3RhN. JOURNAL OF APPLIED PHYSICS, 112, -
dc.identifier.issn	0021-8979
dc.identifier.uri	https://hdl.handle.net/20.500.12619/32071
dc.identifier.uri	https://doi.org/10.1063/1.4764916
dc.description.abstract	We have performed an ab initio study of structural, electronic, vibrational, and superconducting properties of Cr3RhN. The calculations have been carried out by employing the density functional theory, a linear-response formalism, and the plane-wave pseudopotential method. A striking feature of the phonon spectra in this cubic perovskite is the existence of a number of soft modes at the zone centre as well as at Brillouin zone boundaries. Calculations of the Eliashberg spectral function alpha F-2(omega) and the electron-phonon prefactor alpha(2)(omega) reveal that the low frequency soft phonon branches couple more strongly with electrons. Using the calculated electron-phonon coupling parameter lambda = 1.03 and the logarithmically averaged frequency omega(ln) = 255 K, we suggest that this material is a superconductor with the transition temperature close to 17 K. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4764916]
dc.language	English
dc.publisher	AMER INST PHYSICS
dc.subject	Physics
dc.title	Phonons and superconductivity in the cubic perovskite Cr3RhN
dc.type	Article
dc.identifier.volume	112
dc.contributor.department	Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü
dc.contributor.saüauthor	Tütüncü, Hüseyin Murat
dc.relation.journal	JOURNAL OF APPLIED PHYSICS
dc.identifier.wos	WOS:000311968400078
dc.identifier.doi	10.1063/1.4764916
dc.contributor.author	Tütüncü, Hüseyin Murat