Comparative Study of Magnetic Phase Diagrams of Ce Compounds

概要

論文の詳細を見る
Therztaal properties of magnetically ordered (?e-lattice systetns are con?pared irt their crossoverto the non-rnagnetic state, driven by alloying efl'ects. The ordering temperatture (T...j:]? or'Z'C) is fotmnd to go to zero contintrotmsly only in a few cases, while in others a discontinuity inuts decrease is clearly observed. Coincidentall3r, the rnagnetic contribution to the sjcecific heat(C.), the entropy and the free etaergy variations with terrrperattrre rnark an evident dif['erencebetween those cases. Ftrrtherrtaore, the extension of the non-Fertni-liqtrid (NFL) jchase in teruausof concentration variation correlates with dif['erences observed in the respective ordered phase.A s3'steruuaxtic transf'ormation f'rom a 111(2011 field like transition to a fltrctuation dorninated typeis observed in C.(T), as the systeun overcotaaes a characteristic crossover concentration. Strch aconcentration appears as a litaait for the NFL behavior in the paramangnetic phase above T...3.A possible origin of the ztaentiorred difl'erences are disctrssed in ternas of SOIII(? alternatives in theevoltrtion of the tnagnetic ?aaouaaents and the strength of' their interactions.
社団法人日本物理学会の論文
1998-05-15