Published July 1, 2018
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COEXISTENCE OF SUPERPARAMAGNETIC AND FERROMAGNETIC COMPONENTS IN (CuGa)1-xFexSe2-x SOLID SOLUTIONS WITH x=0.1, 1/3 and 1/2
Authors/Creators
- 1. Centro de Estudios en Semiconductores (CES). Dpto. Física. Fac. Ciencias. Universidad de Los Andes (ULA). Mérida. Venezuela
- 2. International Centre for Theoretical Physics (ICTP), Trieste, Italy
- 3. Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Legaria, Instituto Politécnico Nacional, México
- 4. Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, USA
- 5. Department of Physics, Pachhunga University College, Aizawl, India
Description
The magnetic behavior of (CuGa)1-xFexSe2-x solid solutions with compositions x=0.1, 1/3 and 1/2 has been investigated using SQUID techniques. DC magnetic susceptibility was measured in the temperature range 2 < T < 300K using Zero Field Cooling (ZFC) – Field Cooling (FC) protocol. It has been observed that the experimental curves can be analyzed as the sum of two magnetic components, one superparamagnetic and the other one ferromagnetic. The ferromagnetic component persist up to temperatures higher than room temperature making this report the first observation of room temperature ferromagnetism in AIBIIICVI2 compounds doped (or alloyed) with transition metals
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