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Title Evidence of pseudogap formation in a new valence-fluctuating compound - cerhsb
 
Names MALIK, SK
ADROJA, DT
Date Issued 1991 (iso8601)
Abstract The compound CeRhSb, crystallizing in the orthorhombic CeCu2-type structure, has been synthesized. Its unit-cell volume is anomalous in relation to that of isostructural RRhSb (R = rare earth) compounds. Its magnetic susceptibility is weakly temperature dependent and exhibits a broad maximum at about 113 K, characteristic of valence-fluctuating Ce compounds. The resistivity also shows a broad maximum at 113 K followed by a rapid rise below 21 K. The latter indicates a gap formation in the electronic density of states. The gap energy is estimated to be about 4 K. Thus CeRhSb appears to represent a valence-fluctuating cerium compound in which a pseudogap develops in the electronic density of states at low temperatures.
Genre Note
Identifier PHYSICAL REVIEW B,43(7)6277-6279