Buckling and d-wave pairing in HiTc superconductors

被引:33
作者
Jepsen, O [1 ]
Andersen, OK [1 ]
Dasgupta, I [1 ]
Savrasov, S [1 ]
机构
[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
关键词
d-wave pairing; HiTc superconductors; buckling;
D O I
10.1016/S0022-3697(98)00089-4
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We have investigated whether the electron-phonon interaction can support a d-wave gap anisotropy. On the basis of models derived from LDA calculations, as well a LDA linear-response calculations, we argue that this is the case for materials with buckled or dimpled CuO2 planes for the so-called buckling modes, which involve out-of-plane movements of the planar oxygen atoms. (C) 1998 Elsevier Science Ltd. Pill rights reserved.
引用
收藏
页码:1718 / 1722
页数:5
相关论文
共 16 条
[1]   Out-of-plane instability and electron-phonon contribution to s- and d-wave pairing in high-temperature superconductors; LDA linear-response calculation for doped CaCuO2 and a generic tight-binding model. [J].
Andersen, OK ;
Savrasov, SY ;
Jepsen, O ;
Liechtenstein, AI .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1996, 105 (3-4) :285-304
[2]   ELECTRONS, PHONONS, AND THEIR INTERACTION IN YBA2CU3O7 [J].
ANDERSEN, OK ;
LIECHTENSTEIN, AI ;
RODRIGUEZ, O ;
MAZIN, II ;
JEPSEN, O ;
ANTROPOV, VP ;
GUNNARSSON, O ;
GOPALAN, S .
PHYSICA C, 1991, 185 :147-155
[3]   PLANE DIMPLING AND SADDLE-POINT BIFURCATION IN THE BAND STRUCTURES OF OPTIMALLY DOPED HIGH-TEMPERATURE SUPERCONDUCTORS - A TIGHT-BINDING MODEL [J].
ANDERSEN, OK ;
JEPSEN, O ;
LIECHTENSTEIN, AI ;
MAZIN, II .
PHYSICAL REVIEW B, 1994, 49 (06) :4145-4157
[4]   LDA energy bands, low-energy Hamiltonians, t', t'', t perpendicular to(k), and J perpendicular to. [J].
Andersen, OK ;
Liechtenstein, AI ;
Jepsen, O ;
Paulsen, F .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1995, 56 (12) :1573-1591
[5]   d(x2-y2) symmetry and the pairing mechanism [J].
Bulut, N ;
Scalapino, DJ .
PHYSICAL REVIEW B, 1996, 54 (21) :14971-14973
[6]   THEORETICAL DETERMINATION OF STRONG ELECTRON-PHONON COUPLING IN YBA2CU3O7 [J].
COHEN, RE ;
PICKETT, WE ;
KRAKAUER, H .
PHYSICAL REVIEW LETTERS, 1990, 64 (21) :2575-2578
[7]  
FRANK C, 1993, PHYSICAL PROPERTIES, V4, P189
[8]  
LEVI BG, 1993, PHYS TODAY, V46, P17
[9]  
MAZIN II, 1993, LATTICE EFFECTS HIGH, P235
[10]  
Plakida N. M., 1995, HIGH TEMPERATURE SUP