The Coexistence of Superconductivity And Spin Glass In Fe Pnictide - Yesigat Walelgn, Anteneh
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The present works we examine the possibility of coexistence of superconductivity and disorder of magnetic spin is called spin glass when freezing the system that can show the superconductivity and spin glass coexist. In this present work, we can examine the possibility of coexistence of superconductivity and spin glass in detailed 11 families of Fe1+ySexTe1-x compound. We show that spin-glass-like behavior is present in FST for x= 0.1 - 0.15. We present evidence form magnetization measurement and characterized the short-range order with neutron scattering. One of our main results is that the…mehr

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Produktbeschreibung
The present works we examine the possibility of coexistence of superconductivity and disorder of magnetic spin is called spin glass when freezing the system that can show the superconductivity and spin glass coexist. In this present work, we can examine the possibility of coexistence of superconductivity and spin glass in detailed 11 families of Fe1+ySexTe1-x compound. We show that spin-glass-like behavior is present in FST for x= 0.1 - 0.15. We present evidence form magnetization measurement and characterized the short-range order with neutron scattering. One of our main results is that the short-range order is structural as well as magnetic order. The factor of magnetic order exchange in long-range depend on temperature, pressure, the number of doping and other external factor discussed it. We found a mathematical expression for superconductor transition TC, spin glass temperature Tg Susceptibility x(q), and retardation time using for born approximation and digamma function depend on wave vector (q) and cut off frequency (f) in the region coexistence of superconductivity and spin glass in Fe1+ySexTe1 - x compound.
Autorenporträt
Yesigat Walelgn was born in Addis Abeba, Ethiopia; In 1995,2002 he joined primary and General secondary school in GCS and Menelik II School respectively. He graduated Applied physics with BSc and in condensed matter physics with MSc from AAU in July 2009 and 2011. He finished Mettu University. Currently, he is working at KMU as a physics lecturer.