Superparamagnetism in CuFeInTe 3  and CuFeGaTe 3  alloys | Zendy

GrimaGallardo P. | Zendy; Alvarado F. | Zendy; Muñoz M. | Zendy; Durán S. | Zendy; Quintero M. | Zendy; Nieves L. | Zendy; Quintero E. | Zendy; Tovar R. | Zendy; Morocoima M. | Zendy; Ramos M. A. | Zendy

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Superparamagnetism in CuFeInTe 3 and CuFeGaTe 3 alloys

Author(s) -

GrimaGallardo P.,

Alvarado F.,

Muñoz M.,

Durán S.,

Quintero M.,

Nieves L.,

Quintero E.,

Tovar R.,

Morocoima M.,

Ramos M. A.

Publication year - 2012

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.201127663

Subject(s) - superparamagnetism , ferrimagnetism , ferromagnetism , condensed matter physics , squid , materials science , atmospheric temperature range , cluster (spacecraft) , range (aeronautics) , analytical chemistry (journal) , nuclear magnetic resonance , magnetic field , thermodynamics , magnetization , chemistry , physics , chromatography , composite material , ecology , quantum mechanics , computer science , biology , programming language

The temperature dependencies of DC magnetic susceptibilities, χ ( T ), of CuFeInTe 3 and CuFeGaTe 3 alloys were measured in a SQUID apparatus using the protocol of field cooling (FC) and zero FC (ZFC). The FC curves of both samples reflect a weak ferromagnetic (or ferrimagnetic) behavior with a nearly constant value of χ ( T ) in the measured temperature range (2–300 K) indicating that the critical temperatures ( T c ) are >300 K. The ZFC curves diverges from FC, showing irreversibility temperatures ( T irr ) of ∼250 K for CuFeInTe 3 and >300 K for CuFeGaTe 3 , suggesting that we are dealing with cluster‐glass systems in a superparamagnetic state.

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