SPECTRUM OF PERSISTENT PHOTOCONDUCTIVITY IN YBACUO FILMS

被引：18

作者：

AYACHE, C ^{[1
]}

CHAPLYGIN, IL ^{[1
]}

KIRILYUK, AI ^{[1
]}

KREINES, NM ^{[1
]}

KUDINOV, VI ^{[1
]}

机构：

[1] ACAD SCI USSR, Inst Phys Problems, MOSCOW 117973, USSR

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 81卷 / 01期

关键词：

D O I：

10.1016/0038-1098(92)90567-S

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Spectral dependencies of the persistent photoconductivity in YBa2Cu3O6.4 films have been measured at room temperature over the photon energy range 1.6-3.3 eV. Obtained spectra are well described by a set of six Lorentz peaks. We suggest a model in which the observed electronic transitions are ascribed to those in basis CuO2 planes between the conduction band (being formed by five d-orbitals of Cu2+ hybridized with p(x,y) - orbitals of O2-) and upper Hubbard unoccupied (3d(x2-y2) subband.

引用

页码：41 / 45

页数：5

共 52 条

[11] OPTICAL-SPECTRA OF SUPERCONDUCTING YBA2CU3O7-DELTA FILMS - EVIDENCE FOR CU++ D-D TRANSITIONS [J].

GESERICH, HP ;

SCHEIBER, G ;

GEERK, J ;

LI, HC ;

LINKER, G ;

ASSMUS, W ;

WEBER, W .

EUROPHYSICS LETTERS, 1988, 6 (03) :277-282

[12] PHOTOEXCITATIONS IN LA2CUO4 - 2-EV ENERGY-GAP AND LONG-LIVED DEFECT STATES [J].

GINDER, JM ;

ROE, MG ;

SONG, Y ;

MCCALL, RP ;

GAINES, JR ;

EHRENFREUND, E ;

EPSTEIN, AJ .

PHYSICAL REVIEW B, 1988, 37 (13) :7506-7509

[13] ELECTRON CORRELATIONS IN NARROW ENERGY BANDS .2. DEGENERATE BAND CASE [J].

HUBBARD, J .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1964, 277 (1368) :237-+

[14] ELECTRON CORRELATIONS IN NARROW ENERGY BANDS .3. IMPROVED SOLUTION [J].

HUBBARD, J .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1964, 281 (1384) :401-+

[15] ELLIPSOMETRIC SPECTRA OF YBA2CU3O7 IN THE 1.7 - 5.3 EV RANGE [J].

HUMLICEK, J ;

GARRIGA, M ;

CARDONA, M ;

GEGENHEIMER, B ;

SCHONHERR, E ;

BERBERICH, P ;

TATE, J .

SOLID STATE COMMUNICATIONS, 1988, 66 (10) :1071-1075

[16] TEMPERATURE-DEPENDENCE OF OPTICAL-EXCITATIONS IN YBA2CU3O6, SMBA2CU3O6 [J].

HUMLICEK, J ;

GARRIGA, M ;

CARDONA, M .

SOLID STATE COMMUNICATIONS, 1988, 67 (06) :589-592

[17] OPTICAL-PROPERTIES OF COPPER-OXYGEN PLANES IN SUPERCONDUCTING OXIDES AND RELATED MATERIALS [J].

KELLY, MK ;

BARBOUX, P ;

TARASCON, JM ;

ASPNES, DE .

PHYSICAL REVIEW B, 1989, 40 (10) :6797-6805

[18] OXYGEN-DEFICIENCY-INDUCED LOCALIZED OPTICAL-EXCITATIONS IN YBA2CU3OX [J].

KELLY, MK ;

BARBOUX, P ;

TARASCON, JM ;

ASPNES, DE ;

BONNER, WA ;

MORRIS, PA .

PHYSICAL REVIEW B, 1988, 38 (01) :870-873

[19] DIRECT EVIDENCE OF THE IMPORTANCE OF ELECTRON-PHONON COUPLING IN LA2CUO4 - PHOTOINDUCED IR-ACTIVE VIBRATIONAL-MODES [J].

KIM, YH ;

HEEGER, AJ ;

ACEDO, L ;

STUCKY, G ;

WUDL, F .

PHYSICAL REVIEW B, 1987, 36 (13) :7252-7255

[20] PHOTOINDUCED SELF-LOCALIZED STRUCTURAL DISTORTIONS IN YBA2CU3O7-DELTA [J].

KIM, YH ;

FOSTER, CM ;

HEEGER, AJ ;

COX, S ;

STUCKY, G .

PHYSICAL REVIEW B, 1988, 38 (10) :6478-6482

← 1 2 3 4 5 6 →