ELECTRON-INTERMOLECULAR PHONON COUPLING IN κ-PHASE BEDT-TTF ORGANIC SUPERCONDUCTORS

机译：κ相BETT-TTF有机超导体中的电子分子间声子耦合

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First of all, we underline the success of QHLD method in describing BEDT-TTF_2I_3 structures and LP dynamics. Indeed, the crystals structures and the obsvervables connected to LP have been correctly reproduced for all the studied BEDT-TTF_2I_3 phases [1, 2], Key point to this success is the removal of RMA, allowing mixing of low-frequency intramolecular vibrations with the intermolecular phonons. The resulting description of low-frequency phonon dynamics is less simple, but by far more accurate. We have also demonstrated that both e-LP and e-MV couplings are essential to the SC properties of BEDT-TTF_2I_3 salts. The e-LP coupling is stronger, but the e-MV one is instrumental in increasing the average phonon frequency ω_ln. Therefore it appears that phonon mediated pairing is indeed able to account for the SC mechanism in BEDT-TTF_2I_3 salts. Other contributions, such as antiferromagnetic fluctuations, may become of importance in the highest T_c κ-phase salts. Work supported by the Italian Consiglio Nazionale delle Ricerche and by the Ministero dell'Universita e della Ricerca Scientifica e Tecnologica.

机译：首先，我们强调了QHLD方法在描述BEDT-TTF_2I_3结构和LP动力学方面的成功。的确，对于所有研究过的BEDT-TTF_2I_3相[1，2]，已经正确地复制了与LP相连接的晶体结构和可观察物，成功的关键是去除了RMA，从而允许将低频分子内振动与振动相混合。分子间声子。低频声子动力学的最终结果描述不那么简单，但精确得多。我们还证明了e-LP和e-MV偶联对于BEDT-TTF_2I_3盐的SC性能至关重要。 e-LP耦合更强，但e-MV有助于提高平均声子频率ω_ln。因此看来，声子介导的配对确实能够解释BEDT-TTF_2I_3盐中的SC机制。在最高的T_cκ相盐中，其他作用（例如反铁磁波动）可能变得很重要。这项工作得到了意大利Consiglio Nazionale delle Ricerche以及大臣科学技术部的支持。

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《NATO Advanced Research Workshop on Molecular Low Dimensional and Nanostructured Materials for Advanced Applications, Sep 1-5, 2001, Poznan, Poland》|2001年|p.251-254|共4页
会议地点 Poznan(PL)
作者
A. GIRLANDO; M. MASINO; R.G. DELLA VALLE;
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Dip. Chimica G.I.A.F., Parma University;

INSTM-UdR Parma Parco Area delle Scienze 17/a, 43100 Parma, Italy;

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正文语种 eng
中图分类无线电电子学、电信技术;
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专利

1. RESONANCE RAMAN INVESTIGATIONS OF THE ELECTRON PHONON COUPLING IN THE ORGANIC SUPERCONDUCTORS BETA-(BEDT-TTF)(2)IAUI AND KAPPA-(BEDT-TTF)(2)I-3 [J] . Ludwig T., Keller HJ., Schweitzer D. Synthetic Metals . 1997,第1a3期

机译：有机超导体BETA-（BEDT-TTF）（2）IAUI和KAPPA-（BEDT-TTF）（2）I-3中电子声子耦合的共振拉曼研究
2. Lattice dynamics and electron-phonon coupling in the beta-(BEDT-TTF)(2)I-3 organic superconductor [J] . Girlando A., Visentini G., Della Valle RG., Physical Review, B. Condensed Matter . 2000,第21期

机译：β-（BEDT-TTF）（2）I-3有机超导体中的晶格动力学和电子声子耦合
3. Electron-phonon coupling in kappa-(BEDT-TTF)(2)Cu(NCS)(2) organic superconductor studied by Raman scattering spectroscopy [J] . Pedron D., Schlueter JA., Kelly ME., Synthetic Metals . 1999,第1a3期

机译：拉曼散射光谱研究κ-（BEDT-TTF）（2）Cu（NCS）（2）有机超导体中的电子-声子耦合
4. Electron-intermolecular phonon coupling in κ-phase BEDT-TTF organic superconductors [C] . A. Girlando, M. Masino, R. G. Della, NATO Advanced Research Workshop on Molecular Low Dimensional and Nanostructured Materials for Advanced Applications . 2002

机译：κ相床TTF有机超导体中的电子分子间声子耦合
5. First order phase transition in organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br. [D] . Zhang, Ping. 2001

机译：有机超导体kappa-（BEDT-TTF）（2）Cu [N（CN）（2）] Br中的一阶相变。
6. Electron—phonon Coupling and the Superconducting Phase Diagram of the LaAlO3—SrTiO3 Interface [O] . Hans Boschker, Christoph Richter, Evangelos Fillis-Tsirakis, -1

机译：LaAlO3-SrTiO3界面的电子-声子耦合和超导相图
7. The pressure dependence of electron-phonon coupling in the organic superconductor $\kappa$-(BEDT-TTF)$_{2}$Cu(SCN)$_{2}$: A comparison of high pressure infrared reflectivity and Raman scattering experiments [O] . McDonald, R. D., Klehe, A. -K., Singleton, J., 2001

机译：电子 - 声子耦合在有机物中的压力依赖性超导体$ \ kappa $ - （BEDT-TTF）$ _ {2} $ Cu（sCN）$ _ {2} $：比较高压力红外反射率和拉曼散射实验
8. Electron-phonon coupling in (kappa)-(BEDT-TTF)(sub 2)Cu(NCS)(sub 2) organic superconductor studied by Raman scattering spectroscopy. [R] . Pedron, D. 1998

机译：通过拉曼散射光谱研究了（κ） - （BEDT-TTF）（sub 2）Cu（NCs）（sub 2）有机超导体中的电子 - 声子耦合。

ELECTRON-INTERMOLECULAR PHONON COUPLING IN κ-PHASE BEDT-TTF ORGANIC SUPERCONDUCTORS

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