Optical anisotropy of SrLaAlO4 and SrLaAl0.75Ga0.25O4 single crystals

被引：6

作者：

Hora, J ^{[1
]}

Navratil, K ^{[1
]}

Humlicek, J ^{[1
]}

Berkowski, M ^{[1
]}

机构：

[1] POLISH ACAD SCI,INST PHYS,WARSAW,POLAND

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1996年 / 195卷 / 02期

关键词：

D O I：

10.1002/pssb.2221950229

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The optical response of uniaxial SrLaAlO4 (SLA) and SrLaAl0.75Ga0.25O4 (SLAG) single crystals is investigated by several techniques - ellipsometry, reflectance, and transmittance. The optical constants in the UV-VIS region have been obtained from the reflectance and transmittance spectre. A novel method of measurements of the birefringence by spectroscopic ellipsometry is reported. The resulting refractive indices for both polarizations are compared with precise standard measurements performed using a single wavelength null ellipsometer. The reflectivity of SrLaAlO4 crystals is obtained for both polarizations in the infrared region. The fit of the spectra in terms of Lorentzian oscillators provides a quantitative comparison of the phonon mode parameters with that of LaAlO3, and reveals a strong anisotropy of the lattice vibrations polarized along the optical axis and perpendicular ro it.

引用

页码：625 / 635

页数：11

共 12 条

[1]

Azzam R., 1977, ELLIPSOMETRY POLARIZ

[2]

BERKOWSKI M, UNPUB

[3] LOW-LOSS SUBSTRATE FOR MICROWAVE APPLICATION OF HIGH-TEMPERATURE SUPERCONDUCTOR FILMS [J].

BROWN, R ;

PENDRICK, V ;

KALOKITIS, D ;

CHAI, BHT .

APPLIED PHYSICS LETTERS, 1990, 57 (13) :1351-1353

[4]

BYSZEWSKI P, 1991, CRYSTAL PROP PREP, V36, P139

[5]

FAY H, 1967, J PHYS CHEM SOLIDS S, V1, P51

[6] ON THE PREPARATION AND CRYSTAL-GROWTH OF SRLAALO4 [J].

GLOUBOKOV, A ;

JABLONSKI, R ;

RYBAROMANOWSKI, W ;

SASS, J ;

PAJACZKOWSKA, A ;

UECKER, R ;

REICHE, P .

JOURNAL OF CRYSTAL GROWTH, 1995, 147 (1-2) :123-129

[7]

KNITTL Z, 1976, OPTICS THIN FILMS, pCH11

[8] YBA2CU3O7 FILMS EPITAXIALLY GROWN ON MGO, LAALO3, SRLAALO4 AND AL2O3 SUBSTRATES - STRUCTURAL AND SUPERCONDUCTING PROPERTIES IN CORRELATION WITH THE MICROWAVE SURFACE-RESISTANCE AND THE FAR-INFRARED TRANSMITTANCE [J].

LEPAVENTHIVET, C ;

GUILLOUXVIRY, M ;

PADIOU, J ;

PERRIN, A ;

SERGENT, M ;

DEVAULCHIER, LA ;

BONTEMPS, N .

PHYSICA C, 1995, 244 (3-4) :231-242

[9] ANISOTROPY OF OPTICAL-PROPERTIES OF SRLAALO4 AND SRLAA1O(4)ND [J].

RYBAROMANOWSKI, W ;

GOLAB, S ;

SOKOLSKA, I ;

PISARSKI, WA ;

DOMINIAKDZIK, G ;

PAJACZKOWSKA, A ;

BERKOWSKI, M .

JOURNAL OF ALLOYS AND COMPOUNDS, 1995, 217 (02) :263-267

[10] DIELECTRIC-CONSTANTS AND CRYSTAL-STRUCTURES OF CAYALO4, CANDALO4, AND SRLAALO4, AND DEVIATIONS FROM THE OXIDE ADDITIVITY RULE [J].

SHANNON, RD ;

OSWALD, RA ;

PARISE, JB ;

CHAI, BHT ;

BYSZEWSKI, P ;

PAJACZKOWSKA, A ;

SOBOLEWSKI, R .

JOURNAL OF SOLID STATE CHEMISTRY, 1992, 98 (01) :90-98

← 1 2 →