Effects of randomness on the critical temperature in quasi-two-dimensional organic superconductors

Enver Nakhmedov; Oktay Alekperov; Reinhold Oppermann

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Effects of randomness on the critical temperature in quasi-two-dimensional organic superconductors

机译：随机性对准二维有机超导体临界温度的影响

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The effects of nonmagnetic disorder on the critical temperature T_c of organic weak-linked layered superconductors with singlet in-plane pairing are considered. A randomness in the interlayer Josephson coupling is shown to destroy phase coherence between the layers, and T_c suppresses smoothly in a large extent of the disorder strength. Nevertheless, the disorder of arbitrarily high strength cannot destroy completely the superconducting phase. The obtained quasilinear decrease of the critical temperature with increasing disorder strength is in good agreement with experimental measurements.

机译：考虑了非磁性无序对单线面内配对有机弱连接层状超导体的临界温度T_c的影响。层间约瑟夫森耦合的随机性显示出破坏了层之间的相干性，并且T_c在很大程度上抑制了无序强度。然而，任意高强度的混乱不能完全破坏超导相。随着无序强度的增加，临界温度的准线性下降与实验测量结果非常吻合。

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来源
《Physical review》 |2012年第21期|214513.1-214513.5|共5页
作者
Enver Nakhmedov; Oktay Alekperov; Reinhold Oppermann;
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作者单位

Institut fuer Theoretische Physik, Universitaet Wuerzburg, Am Hubland, D-97074 Wiirzburg, Germany,Institute of Physics, Azerbaijan National Academy of Sciences, H. Cavid ave. 33, AZ1143 Baku, Azerbaijan;

Institute of Physics, Azerbaijan National Academy of Sciences, H. Cavid ave. 33, AZ1143 Baku, Azerbaijan;

Institut fuer Theoretische Physik, Universitaet Wuerzburg, Am Hubland, D-97074 Wiirzburg, Germany;

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superconducting films and low-dimensional structures; transition temperature variations; organic superconductors; tunneling phenomena; point contacts, weak links, josephson effects;

机译：超导膜和低维结构;转变温度变化;有机超导体;隧道现象;点接触;薄弱环节;约瑟夫森效应;

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1. The dependence of the superconducting transition temperature T-c on the quasi-two-dimensional carrier concentration in the organic superconductor kappa-(BEDT-TTF)(2)Cu(SCN)(2) (BEDT-TTF equivalent to bis (ethylene-dithio)tetrathiafulvalene) [J] . Klehe AK Journal of Physics. Condensed Matter . 2005,第11期

机译：超导转变温度Tc对有机超导体kappa-（BEDT-TTF）（2）Cu（SCN）（2）（相当于双（乙烯-二硫代）的BEDT-TTF）中准二维载流子浓度的依赖性四硫富瓦烯
2. Evidence for structural and electronic instabilities at intermediate temperatures in kappa-(BEDT-TTF)(2)X for X=Cu[N(CN)(2)]Cl, Cu[N(CN)(2)]Br and Cu(NCS)(2): Implications for the phase diagram of these quasi-two-dimensional organic superconductors - [J] . Muller J., Lang M., Steglich F., Physical Review, B. Condensed Matter . 2002,第14期

机译：X = Cu [N（CN）（2）] Cl，Cu [N（CN）（2）] Br和Cu（）在kappa-（BEDT-TTF）（2）X中温下结构和电子不稳定性的证据NCS）（2）：这些准二维有机超导体的相图含义-
3. Evidence for structural and electronic instabilities at intermediate temperatures in kappa-(BEDT-TTF)(2)X for X=Cu[N(CN)(2)]Cl, Cu[N(CN)(2)]Br and Cu(NCS)(2): Implications for the phase diagram of these quasi-two-dimensional organic superconductors - [J] . Muller J., Lang M., Steglich F., Physical Review, B. Condensed Matter . 2002,第14期

机译：X = Cu [N（CN）（2）] Cl，Cu [N（CN）（2）] Br和Cu（）在kappa-（BEDT-TTF）（2）X中温下结构和电子不稳定性的证据NCS）（2）：这些准二维有机超导体的相图含义-
4. Microdiffraction measurements of the effects of grain alignment on critical current in high-temperature superconductors [C] . Eliot D. Specht, Oak Ridge National Lab., Oak Ridge, X-Ray Microbeam Technology and Applications . 1995

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5. An ultra high vacuum low-temperature scanning tunneling microscope and its applications to high critical transition temperature superconductors and quasi one-dimensional organic conductors. [D] . Pan, Shuheng. 1991

机译：超高真空低温扫描隧道显微镜及其在高临界转变温度超导体和准一维有机导体中的应用。
6. High pressure effects revisited for the cuprate superconductor family with highest critical temperature [O] . Ayako Yamamoto, Nao Takeshita, Chieko Terakura, -1

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7. Effects of randomness on the critical temperature in quasi-two-dimensional organic superconductors [O] . Nakhmedov, Enver, Alekperov, Oktay, Oppermann, Reinhold 2012

机译：随机性对土壤临界温度的影响准二维有机超导体

Effects of randomness on the critical temperature in quasi-two-dimensional organic superconductors

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