作者: K. Katoh , M. Kasaya
DOI: 10.1016/0921-4526(93)90594-V
关键词: Band gap 、 Electron 、 Heavy fermion 、 Condensed matter physics 、 Atomic physics 、 Rare earth ions 、 Valence (chemistry) 、 Antiferromagnetism 、 Materials science 、 Magnetic order
摘要: Abstract The valences of rare earth ions in R 3 Au Sb 4 are well defined tobe 3+, giving rise to semiconducting properties for R=La, Ce, Pr and semi-metallic R=Sm, Gd. Ce shows no magnetic order down 1.5 K C / T is 2500 mJ/mol 2 at K. Sm Gd antiferromagnets with a N 11 K, respectively. Pt mixed-valent compound. , their alloys suggest strongly that the origin an energy gap band gap.