Low temperature specific heat and electrical resistivity of UCu4.5Al7.5

Abstract The specific heat and electrical resistivity results are presented for UCu 4.5 Al 7.5 , a magnetically ordered nearly heavy fermion compound. The specific heat data do not indicate the expected anomaly characteristic for the magnetic order transition; only a very weak one was detected, which has been separated using a simple theoretical procedure. The electronic specific heat coefficient has been estimated to be 118 mJ mol −1 K −2 . The other heavy fermion coefficients have also been calculated. The electrical resistivity data for UCu 4.5 Al 7.5 include indications of strong crystal field effects.