ELECTRON LOCALIZATION WITH AND WITHOUT BARRIER FORMATION

被引：138

作者：

KABANOV, VV ^{[1
]}

MASHTAKOV, OY ^{[1
]}

机构：

[1] ACAD SCI MOLDOVA REPUBL,INST POWER ENGN,KISHINEV 277028,MOLDOVA

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.47.6060

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The possibility of polaron formation within a model of local electron-phonon interactions is considered. It is shown that, unlike the continuous limit, the solution to the Schrodinger equation on a two-dimensional lattice in the adiabatic approximation provides evidence for the presence of an energy barrier that separates a small-size polaron and delocalized electronic state. The polaron stability and metastability regions are determined. The possibility of polaron formation in high-T(c) superconductors is discussed.

引用

页码：6060 / 6064

页数：5

共 28 条

[1] PHONONS IN A STRONGLY COUPLED ELECTRON-PHONON SYSTEM [J].

ALEXANDROV, A ;

CAPELLMANN, H .

PHYSICAL REVIEW B, 1991, 43 (03) :2042-2049

[2]

APPEL J, 1975, POLARONS

[3] SMALL-POLARON THEORY OF DOPED ANTIFERROMAGNETS [J].

AUERBACH, A ;

LARSON, BE .

PHYSICAL REVIEW LETTERS, 1991, 66 (17) :2262-2265

[4] GROWTH OF THE OPTICAL CONDUCTIVITY IN THE CU-O PLANES [J].

COOPER, SL ;

THOMAS, GA ;

ORENSTEIN, J ;

RAPKINE, DH ;

MILLIS, AJ ;

CHEONG, SW ;

COOPER, AS ;

FISK, Z .

PHYSICAL REVIEW B, 1990, 41 (16) :11605-11608

[5]

CROWFORD MK, 1989, PHYSICA C, V162, P755

[6] ADIABATIC THEORY OF AN ELECTRON IN A DEFORMABLE CONTINUUM [J].

EMIN, D ;

HOLSTEIN, T .

PHYSICAL REVIEW LETTERS, 1976, 36 (06) :323-326

[7] FORMATION OF A LARGE SINGLET BIPOLARON - APPLICATION TO HIGH-TEMPERATURE BIPOLARONIC SUPERCONDUCTIVITY [J].

EMIN, D ;

HILLERY, MS .

PHYSICAL REVIEW B, 1989, 39 (10) :6575-6593

[8] FORMATION, MOTION, AND HIGH-TEMPERATURE SUPERCONDUCTIVITY OF LARGE BIPOLARONS [J].

EMIN, D .

PHYSICAL REVIEW LETTERS, 1989, 62 (13) :1544-1547

[9] EXISTENCE OF FREE AND SELF-TRAPPED CARRIERS IN INSULATORS - ABRUPT TEMPERATURE-DEPENDENT CONDUCTIVITY TRANSITION [J].

EMIN, D .

ADVANCES IN PHYSICS, 1973, 22 (01) :57-116

[10]

GOGOLIN AA, 1982, PHYS STATUS SOLIDI B, V109, P905

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