NORMAL-STATE OPTICAL-PROPERTIES OF ND1.85CE0.15CUO4+DELTA

被引：18

作者：

HUGHES, RA ^{[1
]}

LU, Y ^{[1
]}

TIMUSK, T ^{[1
]}

PRESTON, JS ^{[1
]}

机构：

[1] MCMASTER UNIV,DEPT ENGN PHYS,HAMILTON L8S 4M1,ONTARIO,CANADA

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.47.985

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a detailed temperature dependence of the far-infrared reflectance for Nd1.85Ce0.15CuO4+delta films grown by pulsed-laser deposition. The reflectance spectra clearly show the presence of a ledge at 420 cm-1 offering further evidence that this feature is common to all the cuprate superconductors. The optical conductivity obtained from Kramers-Kronig analysis can be divided into two components. The first component, which is strongly temperature dependent, is fit to a Drude model. This fit indicates that Nd1.85Ce0.15CuO4+delta has a constant plasma frequency and a temperature-dependent scattering rate that closely follows the temperature dependence exhibited by the dc resistivity. The second component shows little temperature dependence and is described by a model that couples phonons to a midinfrared band. Comparisons between the optical conductivity and the structures seen by tunneling and inelastic-neutron-scattering measurements are made.

引用

页码：985 / 990

页数：6

共 30 条

[1] INFRARED-SPECTROSCOPY OF ND2-YCEYCUO4 (Y=0-0.2) SINGLE-CRYSTALS [J].

ABEL, EV ;

BAGAEV, VS ;

BASOV, DN ;

DOLGOV, OV ;

PLOTNIKOV, AF ;

POIARKOV, AG ;

SADOVSKY, W .

SOLID STATE COMMUNICATIONS, 1991, 79 (11) :931-933

[2] ELECTRON-PHONON EFFECTS IN INFRARED PROPERTIES OF METALS [J].

ALLEN, PB .

PHYSICAL REVIEW B, 1971, 3 (02) :305-&

[3] 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

[4] EFFECTS OF CONFIGURATION INTERACTION ON INTENSITIES AND PHASE SHIFTS [J].

FANO, U .

PHYSICAL REVIEW, 1961, 124 (06) :1866-&

[5] PHONON DENSITY OF STATES OF SUPERCONDUCTING LEAD [J].

FARNWORTH, B ;

TIMUSK, T .

PHYSICAL REVIEW B, 1976, 14 (11) :5119-5120

[6] INFRARED REFLECTION OF EPITAXIAL TL2BA2CACU2O8 THIN-FILMS IN THE NORMAL AND SUPERCONDUCTING STATES [J].

FOSTER, CM ;

VOSS, KF ;

HAGLER, TW ;

MIHAILOVIC, D ;

HEEGER, AJ ;

EDDY, MM ;

OLSON, WL ;

SMITH, EJ .

SOLID STATE COMMUNICATIONS, 1990, 76 (05) :651-654

[7] OPTICAL-PROPERTIES OF ND2-XCEXCUO4 THIN-FILMS [J].

HIROCHI, K ;

HAYASHI, S ;

ADACHI, H ;

MITSUYU, T ;

HIRAO, T ;

SETSUNE, K ;

WASA, K .

PHYSICA C, 1989, 160 (3-4) :273-277

[8]

HOLSTEIN T, 1954, PHYS REV, V96, P539

[9] TUNNELING EVIDENCE FOR PREDOMINANTLY ELECTRON PHONON COUPLING IN SUPERCONDUCTING BA1-XKXBIO3 AND ND2-XCEXCUO4-Y [J].

HUANG, Q ;

ZASADZINSKI, JF ;

TRALSHAWALA, N ;

GRAY, KE ;

HINKS, DG ;

PENG, JL ;

GREENE, RL .

NATURE, 1990, 347 (6291) :369-372

[10] PHONON CONTRIBUTION TO FAR-INFRARED ABSORPTIVITY OF SUPERCONDUCTING AND NORMAL LEAD [J].

JOYCE, RR ;

RICHARDS, PL .

PHYSICAL REVIEW LETTERS, 1970, 24 (18) :1007-&

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