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Overview of High Temperature Superconductivity in Iron Pnictides

HomeOverview of High Temperature Superconductivity in Iron Pnictides

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Overview of High Temperature Superconductivity in Iron Pnictides

Shewangzaw Hamelo

Corresponding Author : Shewangzaw Hamelo

Department of physics, college of natural and computational science, wolaita sodo University, Ethiopia

Email ID : shewangzaw22@gmail.com

Received : 2018-10-12 Accepted : 2018-11-25 Published : 2018-11-25

Abstract : The discovery of new superconductor LaFeAsOi-xFx with a superconducting critical temperature, Tc of 26K in 2008 has quickly renewed interest in the exploration of iron based superconductors. More new superconductors have been discovered with the highest Tc of up to 55K being observed in the SmF eAsO1-xFx compound. High Tc have previously only been observed in cuprates, these new iron based superconductors have been added as second member of high Tc family. The crystal structur of these compounds contains an almost 2D Fe-As layer formed by FeS4 tetrahedrons, which can be separated an ionic layer that provides an extra electron to Fe-As layer superconductivity can be induced by carrier doping, which destroy the antifrromagnetic ground state. The pairing mechanism has been clarified as unconventional and antiferromagnetic (AF) spin fluctuations (SFs) seem to play an important role in making these pairs. In this paper superconducting crystal structure, physical properties of parent compounds, pressure effects, the electronic state of the compounds will be presented.

Keywords : superconductor, Superconductivity, Iron Pnictides

Citation : Shewangzaw Hamelo (2018). Overview of High Temperature Superconductivity in Iron Pnictides. J. of Physical and Chemical Sciences. V7I1:01. DOI : 10.5281/zenodo.1692090

Copyright : © 2018 Shewangzaw Hamelo . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Journal of Physical and Chemical Sciences

ISSN : 2348-327X

Volume 7 / Issue 1

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