RAMAN-STUDY OF R0.5PR0.5BA2CU3O7-DELTA (R=Y, RARE-EARTH)

被引：21

作者：

BOGACHEV, G

ABRASHEV, M

ILIEV, M

POULAKIS, N

LIAROKAPIS, E

MITROS, C

KOUFOUDAKIS, A

PSYHARIS, V

机构：

[1] NATL TECH UNIV ATHENS,DEPT PHYS,GR-15780 ATHENS,GREECE

[2] NATL CTR SCI RES DEMOKRITOS,INST MAT SCI,GR-15310 ATHENS,GREECE

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.49.12151

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The polarized Raman scattering of the R0.5Pr0.5Ba2Cu3O7-delta series (R = La, Pr, Nd, Sm, Eu, Gd, Dy, Y, Ho, Er, Tm, Yb, Lu; delta approximately 0) which undergoes a superconductor-to-nonsuperconductor transition between R = Gd and Dy was studied. It was found that the appearance of superconductivity correlates with observation of a two-mode behavior of the R-ion-size-sensitive B1g-like mode of 0(2),O(3) out-of-phase vibrations. It was also established that the Ba (xx,A(g)) phonon line is of asymmetrical (Fano) shape for all R. The origin of the Fano effect usually attributed to interference with an electronic continuum is discussed.

引用

收藏

页码：12151 / 12158

页数：8

相关论文

共 44 条

[21] FERMI-SURFACE AND LOW-ENERGY EXCITATION SPECTRUM OF YBA2CU3O7 - ROLE OF THE BA-O PLANE [J].

MAZIN, II ;

JEPSEN, O ;

ANDERSEN, OK ;

LIECHTENSTEIN, AI ;

RASHKEEV, SN ;

USPENSKII, YA .

PHYSICAL REVIEW B, 1992, 45 (09) :5103-5106

[22] LOW-ENERGY INTERBAND-TRANSITIONS IN YBA2CU3O7 [J].

MAZIN, II ;

RASHKEEV, SN ;

LIECHTENSTEIN, AI ;

ANDERSEN, OK .

PHYSICAL REVIEW B, 1992, 46 (17) :11232-11235

[23] INTERPRETATION OF DEHAAS-VANALPHEN MEASUREMENTS ON YBA2CU3O7 [J].

MAZIN, II ;

JEPSEN, O ;

ANDERSEN, OK ;

LIECHTENSTEIN, AI .

PHYSICAL REVIEW LETTERS, 1992, 68 (26) :3936-3936

[24] TEMPERATURE-DEPENDENCE OF THE PHONON FREQUENCIES, LINEWIDTHS, AND RAMAN-CONTINUUM SCATTERING OF SINGLE-DOMAIN Y0.56PR0.44BA2CU3O7 [J].

MCCARTY, KF ;

LIU, JZ ;

JIA, YX ;

SHELTON, RN ;

RADOUSKY, HB .

PHYSICAL REVIEW B, 1992, 46 (18) :11958-11964

[25] NEUTRON SPECTROSCOPIC EVIDENCE FOR CLUSTER FORMATION AND PERCOLATIVE SUPERCONDUCTIVITY IN ERBA2CU3OX [J].

MESOT, J ;

ALLENSPACH, P ;

STAUB, U ;

FURRER, A ;

MUTKA, H .

PHYSICAL REVIEW LETTERS, 1993, 70 (06) :865-868

[26] ANHARMONIC EFFECTS AND THE 2-PARTICLE CONTINUUM IN THE RAMAN-SPECTRA OF YBA2CU3O6.9, TLBA2CACU2O7, AND TL2BA2CACU2O8 [J].

MIHAILOVIC, D ;

MCCARTY, KF ;

GINLEY, DS .

PHYSICAL REVIEW B, 1993, 47 (14) :8910-8916

[27] CHANGES IN THE PR-INDUCED TC DEPRESSION OF 123 COMPOUNDS BY CHEMICAL PRESSURE [J].

NIEVA, G ;

LEE, BW ;

GUIMPEL, J ;

IWASAKI, H ;

MAPLE, MB ;

SCHULLER, IK .

PHYSICA C, 1991, 185 :561-562

[28] UPPER CRITICAL-FIELD AND NORMAL-STATE PROPERTIES OF SINGLE-PHASE Y1-XPRXBA2CU3O7-DELTA COMPOUNDS [J].

PENG, JL ;

KLAVINS, P ;

SHELTON, RN ;

RADOUSKY, HB ;

HAHN, PA ;

BERNARDEZ, L .

PHYSICAL REVIEW B, 1989, 40 (07) :4517-4526

[29] A REVIEW OF THE SUPERCONDUCTING AND NORMAL STATE PROPERTIES OF Y1-XPRXBA2CU3O7 [J].

RADOUSKY, HB .

JOURNAL OF MATERIALS RESEARCH, 1992, 7 (07) :1917-1955

[30] PREPARATION AND RAMAN ANALYSIS OF SINGLE-PHASE Y1-XPRXBA2CU3O7-DELTA [J].

RADOUSKY, HB ;

MCCARTY, KF ;

PENG, JL ;

SHELTON, RN .

PHYSICAL REVIEW B, 1989, 39 (16) :12383-12386

← 1 2 3 4 5 →