Hydrostatic pressure effect on T c of new BiS2 -based Bi4 O4 S3 and NdO0.5 F0.5 BiS2 layered superconductors
نویسندگان
چکیده
منابع مشابه
Multiband superconductivity in BiS2-based layered compounds.
A mean-field treatment is presented of a square lattice two-orbital-model for [Formula: see text] taking into account intra- and inter-orbital superconductivity. A rich phase diagram involving both types of superconductivity is presented as a function of the ratio between the couplings of electrons in the same and different orbitals ([Formula: see text]) and electron doping x. With the help of ...
متن کاملRole of valence changes and nanoscale atomic displacements in BiS2-based superconductors
Superconductivity within layered crystal structures has attracted sustained interest among condensed matter community, primarily due to their exotic superconducting properties. EuBiS2F is a newly discovered member in the BiS2-based superconducting family, which shows superconductivity at 0.3 K without extrinsic doping. With 50 at.% Ce substitution for Eu, superconductivity is enhanced with Tc i...
متن کاملDiscovery of BiS2-Based Superconductor and Material Design Concept
In 2012, we discovered new layered superconductors whose superconducting states emerge in the BiS2 layers. Since their crystal structure, composed of alternate stacks of BiS2 conduction layers and electrically insulating (blocking) layers, is similar to those of cuprate and Fe-based superconductors, many researchers have explored new BiS2-based superconductors and have studied the physical and ...
متن کاملRPA analysis of a two-orbital model for the BiS2-based superconductors
G. B. Martins,1,* A. Moreo,2 and E. Dagotto2 1Department of Physics, Oakland University, Rochester, Michigan 48309, USA 2Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA and Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA (Received 1 December 2012; revised manuscript received 4 January 2013; p...
متن کاملar X iv : 1 20 8 . 31 89 v 2 [ co nd - m at . s up r - co n ] 8 O ct 2 01 3 New
We have synthesized a new layered BiS2-based compound SrFBiS2. This compound has similar structure to BiS2. It is built up by stacking up SrF layers and NaCl-type BiS2 layers alternatively along the c axis. Electric transport measurement indicates that SrFBiS2 is a semiconductor. Thermal transport measurement shows that SrFBiS2 has a small thermal conductivity and large Seebeck coefficient. Fir...
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ژورنال
عنوان ژورنال: physica status solidi (RRL) - Rapid Research Letters
سال: 2013
ISSN: 1862-6254
DOI: 10.1002/pssr.201307125