ホサカ　タダアキ   HOSAKA TADAAKI   保坂　忠明    所属   明治大学  理工学部    職種   専任准教授
言語種別	英語
発行・発表の年月	2004/10
形態種別	学術雑誌
査読	査読あり
標題	Lattice constants, electrical resistivity and specific heat of RNiC2
執筆形態	共著(筆頭者以外)
掲載誌名	JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
掲載区分	国外
出版社・発行元	PHYSICAL SOC JAPAN
巻・号・頁	73(10),pp.2790-2794
著者・共著者	M Murase,A Tobo,H Onodera,Y Hirano,T Hosaka,S Shimomura,N Wakabayashi
概要	Anomalous temperature dependence of electrical resistivity was found to be ubiquitous among the compounds RNiC2 with R = La, Ce, Nd, Sm, Gd, Tb and Er. Lattice parameters were also observed to exhibit anomalous temperature dependence for some of the compounds studied by X-ray diffraction. It is argued that the existence of charge modulated structures is the cause of the former anomalies. The latter anomalies, on the other hand, are likely to be related to the coupling between the lattice and the f-electrons. Results of heat capacity measurements are used to estimate crystal field levels in NdNiC2 and SmNiC2.
DOI	10.1143/JPSJ.73.2790
ISSN	0031-9015