Electrical transport and magnetic properties of MAs3 (M = Ca,Sr,Eu,Ba), α- and β-EuP3 and their alloys
The triarsenides and triphosphides of the divalent metals Ca,Sr,Eu and Ba form a new class of narrow gap materials. CaAs3,BaAs3,α- and β-EuP3 are found to be small gap semiconductors, while SrAs3 and EuAs3 are semimetals. β-EuP3 and EuAs3 undergo magnetic phase transitions at around 10 K. We have investigated these transitions by electrical conductivity, specific heat, magnetic susceptibility and Mößbauer measurements.
KeywordsElectrical Resistivity Magnetic Anomaly Hyperfine Field Phosphorus Atom Magnetic Phase Transition
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