NORMAL STATE REFLECTANCE OF NDCECUO SINGLE-CRYSTALS

被引:4
作者
CALVANI, P [1 ]
CAPIZZI, M [1 ]
LUPI, S [1 ]
MASELLI, P [1 ]
VIRGILIO, M [1 ]
FABRIZI, A [1 ]
POMPA, M [1 ]
SADOWSKI, W [1 ]
WALKER, E [1 ]
机构
[1] UNIV GENEVA,DEPT PHYS MAT CONDENSEE,PHYS SECT,CH-1211 GENEVA 4,SWITZERLAND
来源
JOURNAL OF THE LESS-COMMON METALS | 1990年 / 164卷
关键词
D O I
10.1016/0022-5088(90)90483-Z
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The reflectance of highly oriented Nd2-xCexCuO4-y single crystals has been measured from 100 to 20000 cm-1 for x = 0 and 0.15 and for different values of y. Sample structures and critical temperatures have been determined by different techniques. The energies of six phonon modes in the a-b plane have been determined in Nd2CuO4. The dependence of the optical conductivity \ ̃gs(ω) on x and y has been studied. A mid-infrared band has been determined in the x = 0.15 samples. © 1990.
引用
收藏
页码:776 / 783
页数:8
相关论文
共 23 条
  • [1] PHONON-DISPERSION CURVES FOR LA1.85SR0.15CUO4
    BRUN, T
    GRIMSDITCH, M
    GRAY, KE
    BHADRA, R
    MARONI, V
    LOONG, CK
    [J]. PHYSICAL REVIEW B, 1987, 35 (16): : 8837 - 8839
  • [2] RAMAN AND INFRARED STUDIES OF SR2TIO4 - A MATERIAL ISOMORPHIC TO (LA,SR)2CUO4 SUPERCONDUCTORS
    BURNS, G
    DACOL, FH
    KLICHE, G
    KONIG, W
    SHAFER, MW
    [J]. PHYSICAL REVIEW B, 1988, 37 (07): : 3381 - 3388
  • [3] CALVANI P, IN PRESS SOLID STATE
  • [4] ABOUT THE SUPERCONDUCTING GAP IN THE NORMAL-TYPE HIGH-TC SUPERCONDUCTOR (ND1.85CE0.15CUO4-DELTA)
    DEGIORGI, L
    RUSIECKI, S
    WACHTER, P
    [J]. PHYSICA C, 1989, 161 (02): : 239 - 244
  • [5] CORRELATION OF DOPANT-INDUCED OPTICAL-TRANSITIONS WITH SUPERCONDUCTIVITY IN LA2-XSRXCUO4-DELTA
    ETEMAD, S
    ASPNES, DE
    KELLY, MK
    THOMPSON, R
    TARASCON, JM
    HULL, GW
    [J]. PHYSICAL REVIEW B, 1988, 37 (07): : 3396 - 3399
  • [6] RAMAN-STUDY OF PURE AND CE DOPED SINGLE-CRYSTALS OF ND2CUO4-Y
    HADJIEV, VG
    KOSTADINOV, IZ
    BOZUKOV, L
    DINOLOVA, E
    MATEEV, DM
    [J]. SOLID STATE COMMUNICATIONS, 1989, 71 (12) : 1093 - 1097
  • [7] HEAVENS OS, 1965, OPTICAL PROPERTIES T, P77
  • [8] OPTICAL-PROPERTIES OF ND2-XCEXCUO4 THIN-FILMS
    HIROCHI, K
    HAYASHI, S
    ADACHI, H
    MITSUYU, T
    HIRAO, T
    SETSUNE, K
    WASA, K
    [J]. PHYSICA C, 1989, 160 (3-4): : 273 - 277
  • [9] OPTICAL-PROPERTIES OF COPPER-OXYGEN PLANES IN SUPERCONDUCTING OXIDES AND RELATED MATERIALS
    KELLY, MK
    BARBOUX, P
    TARASCON, JM
    ASPNES, DE
    [J]. PHYSICAL REVIEW B, 1989, 40 (10): : 6797 - 6805
  • [10] OXYGEN-DEFICIENCY-INDUCED LOCALIZED OPTICAL-EXCITATIONS IN YBA2CU3OX
    KELLY, MK
    BARBOUX, P
    TARASCON, JM
    ASPNES, DE
    BONNER, WA
    MORRIS, PA
    [J]. PHYSICAL REVIEW B, 1988, 38 (01): : 870 - 873