Magnetism and superconductivity in a heavy-fermion superconductor, CePt3Si

Autor:	Kazuhiko Sugiyama, M. Shiimoto, Hiroaki Shishido, Yuji Aoki, Mineko Yamada, T. Takeuchi, Taiki Ueda, K. Kindo, Yoshiko Obiraki, S. Hashimoto, H. Kohara, Yoshinori Haga, Hideyuki Sato, Tatsuma D. Matsuda, Rikio Settai, T. Yasuda, Takeshi Yamamoto, Y. O¯nuki
Rok vydání:	2004
Předmět:	Superconductivity Magnetization Magnetic moment Condensed matter physics Magnetism Chemistry Condensed Matter::Superconductivity Antiferromagnetism General Materials Science Strongly correlated material Heavy fermion superconductor Condensed Matter Physics Néel temperature
Zdroj:	Journal of Physics: Condensed Matter. 16:L333-L342
ISSN:	1361-648X 0953-8984
Popis:	We have studied the magnetic and thermal properties of a single crystal of CePt3Si, which is a recently reported heavy-fermion superconductor with a superconducting transition temperature Tc = 0.75 K and a Neel temperature TN = 2.2 K. The overall experimental data are principally explained on the basis of the crystalline electric field (CEF) scheme. Even in the antiferromagnetic state, the CEF model applies well to the characteristic features in the magnetization curve. These results indicate the existence of a localized magnetic moment at the Ce site, with a considerably reduced ordered moment of 0.16 μB/Ce, and the strongly correlated conduction electrons are condensed into the superconducting state. We have also constructed the magnetic phase diagram including the superconducting phase for and [001].
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a6ceb4eecbb7d8cd6d3c1ed96ddeec98 https://doi.org/10.1088/0953-8984/16/28/l03 Zobrazit plný text záznamu