ELECTRON PAIRING MECHANISM IN INCIPIENT FERROELECTRIC BAPB1-XBIXO3

被引：7

作者：

BUSSMANNHOLDER, A ^{[1
]}

BUTTNER, H ^{[1
]}

SIMON, A ^{[1
]}

WAAS, V ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH, W-7000 STUTTGART 80, GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1990年 / 79卷 / 03期

关键词：

D O I：

10.1007/BF01437656

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The lattice dynamical properties of BaPb1-xBixO3 are described within the polarizability model for perovskite oxides, but extended to take into account the valence instability of Bi. In a quantitative investigation it is found that a mode softening to a ferroelectric state is excluded, but a transition to a paired electron state is possible. The transformation of the classical Hamiltonian to its quantum-mechanical equivalent shows the parameter regimes for which pairing of electrons and thus possibly superconductivity occur. © 1990 Springer-Verlag.

引用

页码：445 / 449

页数：5

共 44 条

[41] REMARKS ON BLOCHS METHOD OF SOUND WAVES APPLIED TO MANY-FERMION PROBLEMS [J].

TOMONAGA, S .

PROGRESS OF THEORETICAL PHYSICS, 1950, 5 (04) :544-569

[42] INFRARED PHONONS IN SEMICONDUCTING PHASE OF BAPB1-XBIXO3 [J].

UCHIDA, S ;

TAJIMA, S ;

MASAKI, A ;

SUGAI, S ;

KITAZAWA, K ;

TANAKA, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1985, 54 (11) :4395-4409

[43] MISSING VALENCE STATES, DIAMAGNETIC INSULATORS, AND SUPERCONDUCTORS [J].

VARMA, CM .

PHYSICAL REVIEW LETTERS, 1988, 61 (23) :2713-2716

[44] BAPBO3-BABIO3 SYSTEM - DIELECTRIC AND SUPERCONDUCTIVE TRANSITIONS, ISOMER-SHIFT OF MOSSBAUER LINE [J].

VENEVTSEV, YN ;

BOGATKO, VV ;

PLOTNIKOVA, MV ;

REIMAN, SI .

FERROELECTRICS, 1984, 56 (1-2) :61-64

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