CHARACTERIZATION OF GDBA2CU3O7-DELTA THIN-FILMS BY RAMAN-SCATTERING

被引：0

作者：

HANGYO, M ^{[1
]}

NAKASHIMA, S ^{[1
]}

HASEGAWA, N ^{[1
]}

HAYASHI, S ^{[1
]}

WASA, K ^{[1
]}

机构：

[1] MATSUSHITA ELECT IND CO LTD,CENT RES LABS,MORIGUCHI,OSAKA 570,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1990年 / 29卷 / 05期

关键词：

Fano effect; GdBa2Cu30; Oxygen content; Phonon; Raman spectra; Softening; Superconducting thin films;

D O I：

10.1143/JJAP.29.851

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Raman spectra of GdBa2Cu3O7-δ thin films (ortho-I, ortho-II and tetra) deposited on MgO substrates by rf magnetron sputtering were measured with an incident light beam whose direction was parallel or perpendicular to the c-axis. The oxygen content was estimated from the frequency of the Cu–O axial stretching mode for these films. The bending mode associated with oxygen at ∼320 cm-1 shows the Fano-type asymmetry for all three films indicating the strong electronphonon interaction in this system. This mode softens at around Tc with decreasing temperature for the ortho-I sample whereas it shifts upwards monotonically for the ortho-II and tetra samples. Comparison of this temperature dependence with that of YBa2Cu3O7-δ indicates that the softening of this mode is characteristic for the ortho-I phase. © 1990 The Japan Society of Applied Physics.

引用

页码：851 / 855

页数：5

共 30 条

[1] INFRARED AND RAMAN-SPECTRA OF THE NEW SUPERCONDUCTING CUPRATE PEROVSKITES DYBA2CU3O7, ERBA2CU3O7, TMBA2CUBO7 [J].

CARDONA, M ;

LIU, R ;

THOMSEN, C ;

BAUER, M ;

GENZEL, L ;

KONIG, W ;

WITTLIN, A ;

AMADOR, U ;

BARAHONA, M ;

FERNANDEZ, F ;

OTERO, C ;

SAEZ, R .

SOLID STATE COMMUNICATIONS, 1988, 65 (01) :71-75

[2] SINGLE-PHASE 60-K BULK SUPERCONDUCTOR IN ANNEALED BA2YCU3O7-DELTA(0.3-LESS-THAN-DELTA-LESS-THAN-0.4) WITH CORRELATED OXYGEN VACANCIES IN THE CU-O CHAINS [J].

CAVA, RJ ;

BATLOGG, B ;

CHEN, CH ;

RIETMAN, EA ;

ZAHURAK, SM ;

WERDER, D .

PHYSICAL REVIEW B, 1987, 36 (10) :5719-5722

[3] RAMAN-SCATTERING FROM SUPERCONDUCTING GAP EXCITATIONS IN SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].

COOPER, SL ;

KLEIN, MV ;

PAZOL, BG ;

RICE, JP ;

GINSBERG, DM .

PHYSICAL REVIEW B, 1988, 37 (10) :5920-5923

[4] GAP ANISOTROPY AND PHONON SELF-ENERGY EFFECTS IN SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].

COOPER, SL ;

SLAKEY, F ;

KLEIN, MV ;

RICE, JP ;

BUKOWSKI, ED ;

GINSBERG, DM .

PHYSICAL REVIEW B, 1988, 38 (16) :11934-11937

[5] DIAGNOSTICS OF THE HIGH-TEMPERATURE SUPERCONDUCTING YBA2CU3OX FILMS BY RAMAN-SPECTROSCOPY [J].

DENISOV, VN ;

MAVRIN, BN ;

PODOBEDOV, VB ;

BAGRATASHVILY, VN ;

BURIMOV, VN ;

GINODMAN, VB ;

ZHERIKHINA, LN ;

ZHERIKHIN, AN ;

RODIN, MM ;

SVIRIDOV, AP ;

TSYPINA, SI ;

TSKHOVREBOV, AM .

SOLID STATE COMMUNICATIONS, 1989, 69 (07) :743-745

[6] RAMAN-SCATTERING AS A CONTACTLESS ROOM-TEMPERATURE TEST OF THE QUALITY OF YBA2CU3O7-X THIN-FILMS [J].

FARROW, LA ;

CHAN, SW ;

GREENE, LH ;

FELDMANN, WL .

JOURNAL OF APPLIED PHYSICS, 1989, 65 (06) :2381-2383

[7] RAMAN-SCATTERING INVESTIGATION OF A SINGLE-CRYSTAL-LIKE YBA2CU3O7-Y FILM [J].

FARROW, LA ;

VENKATESAN, T ;

BONNER, WA ;

WU, XD ;

INAM, A ;

HEGDE, MS .

JOURNAL OF APPLIED PHYSICS, 1989, 65 (11) :4452-4453

[8] LATTICE-VIBRATIONS IN HIGH-TC SUPERCONDUCTORS - OPTICAL SPECTROSCOPY AND LATTICE-DYNAMICS [J].

FEILE, R .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1989, 159 (1-2) :1-32

[9] TEMPERATURE EFFECTS ON THE PHONON-SPECTRUM IN YBA2CU3O7 SINGLE-CRYSTALS AND THIN-FILMS [J].

FEILE, R ;

LEIDERER, P ;

KOWALEWSKI, J ;

ASSMUS, W ;

SCHUBERT, J ;

POPPE, U .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 73 (02) :155-160

[10] CHARACTERIZATION OF THIN SUPERCONDUCTING YBACUO-FILMS BY RAMAN-SPECTROSCOPY [J].

FEILE, R ;

SCHMITT, U ;

LEIDERER, P ;

SCHUBERT, J ;

POPPE, U .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 72 (02) :161-164

← 1 2 3 →