HOSAKA TADAAKI
   Department   Undergraduate School  , School of Science and Technology
   Position   Associate Professor
Language English
Publication Date 2004/10
Type Academic Journal
Peer Review Peer reviewed
Title Lattice constants, electrical resistivity and specific heat of RNiC2
Contribution Type Co-authored (other than first author)
Journal JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Journal TypeAnother Country
Publisher PHYSICAL SOC JAPAN
Volume, Issue, Page 73(10),pp.2790-2794
Author and coauthor M Murase,A Tobo,H Onodera,Y Hirano,T Hosaka,S Shimomura,N Wakabayashi
Details 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