Magnetic Field Dependence of the Low-Temperature Specific Heat of the Borocarbide Superconductor LuNi2B2C

Autor:	Masanobu Isshiki, Hidenori Takagi, Minoru Nohara, Robert J. Cava
Rok vydání:	1997
Předmět:	Physics Superconductivity Specific heat Condensed matter physics Nickel compounds Linear term Condensed Matter::Superconductivity Pairing General Physics and Astronomy Fermi surface State (functional analysis) Magnetic field
Zdroj:	Journal of the Physical Society of Japan. 66:1888-1891
ISSN:	1347-4073 0031-9015
Popis:	The low temperature specific heat of the borocarbide superconductor LuNi 2 B 2 C was measured under various magnetic fields ( H ) up to 8 T. The coefficient of the T -linear term in specific heat in the mixed state shows marked deviations from the H -linear dependence expected for conventional superconductors and is found to obey a \(\sqrt{H}\) dependence. A good description of the data can be obtained by assuming the presence of a zero-gap region along lines on the Fermi surface, indicating the possibility of unconventional pairing in the superconducting state of the borocarbides.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5434957370467b99ee93446ad0179aae https://doi.org/10.1143/jpsj.66.1888 Zobrazit plný text záznamu