Magnetic anomaly in superconducting FeSe

Synthesis, electrical and magnetic characterization of a superconducting FeSe 0.85 compound is reported. An anomaly in the magnetization against temperature around 90 K is observed. The magnetic characterization of a commercial compound with nominal FeSe stoichiometry is also presented. The overall...

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Bibliographic Details
Published in:	Solid state communications Vol. 150; no. 25; pp. 1124 - 1127
Main Authors:	Mendoza, D., Benítez, J.L., Morales, F., Escudero, R.
Format:	Journal Article
Language:	English
Published:	Kidlington Elsevier Ltd 01-07-2010 Elsevier
Subjects:	A. Superconductors Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Impurities Magnetic anomalies Magnetic properties Magnetization Phases Physics Properties of type I and type II superconductors Solid state Stoichiometry Superconductivity Synthesis A. Superconductors Stoichiometry Fluctuations Superconductors Electrical conductivity Magnetization Magnetic impurities Anomaly XRD Iron selenides
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Summary:	Synthesis, electrical and magnetic characterization of a superconducting FeSe 0.85 compound is reported. An anomaly in the magnetization against temperature around 90 K is observed. The magnetic characterization of a commercial compound with nominal FeSe stoichiometry is also presented. The overall magnetic behaviors as well as the magnetic anomaly in both compounds are discussed in terms of magnetic impurities and secondary phases.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0038-1098 1879-2766
DOI:	10.1016/j.ssc.2010.03.025