Evidence for Unconventional Superconductivity ofSr2RuO4from Specific-Heat Measurements

Autor:	S. Nishizaki, Snorre Farner, Yoshiteru Maeno, Toshizo Fujita, Shinichi Ikeda
Rok vydání:	1998
Předmět:	Superconductivity Residual resistivity Materials science Condensed matter physics Specific heat Impurity Band gap Condensed Matter::Superconductivity General Physics and Astronomy Condensed Matter::Strongly Correlated Electrons Perovskite (structure)
Zdroj:	Journal of the Physical Society of Japan. 67:560-563
ISSN:	1347-4073 0031-9015
Popis:	We measured the specific heat of single crystals of non-cuprate layered perovskite superconductor Sr 2 RuO 4 . The crystals with different T c up to 1.2 K exhibit a large residual electronic coefficient γ 0 , which decreases systematically with increasing T c . This behavior is consistent with the presence of nodes in the superconducting gap and with the variations of T c due to pair breaking by impurities and defects. To quantitatively account for the observed large γ 0 , however, we need to introduce additional mechanism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::07df251b041d292d8acf22dc0611f6ce https://doi.org/10.1143/jpsj.67.560 Zobrazit plný text záznamu