Transport Properties for and Intermediate Valence Model of Tl${}_2$Mn${}_2$O${}_7$

M. E. Foglio, G. E. Barberis

The appearance of colossal magneto resistance (CM) in Tl${}_2$Mn${}_2$O${}_7$ has stimulated many recent studies of the pyrochlore family of compounds A${}_2$B${}_2$O${}_7$. The do…