DETERMINATION OF RAYLEIGH-WAVE VELOCITIES IN HIGH-TC SUPERCONDUCTING NDBA2CU3O7-Y SMBA2CU3O7-Y EUBA2CU3O7-Y GDBA2CU3O7-Y DYBA2CU3O7-Y YBA2CU3O7-Y HOBA2CU3O7-Y ERBA2CU3O7-Y TMBA2CU3O7-Y YBBA2CU3O7-Y SINGLE-CRYSTALS BY MANDELSTAMM-BRILLOUIN LIGHT-SCATTERING SPECTRA

被引：4

作者：

ALEKSANDROV, VV

VELICHKINA, TS

VORONKOVA, VI

YAKOVLEV, IA

YANOVSKII, VK

机构：

[1] Physics Department, Moscow State University, Moscow

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 73卷 / 08期

关键词：

D O I：

10.1016/0038-1098(90)91048-L

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We obtained Rayleigh wave velocities in rare earth cuprate crystals in both orthorhombic and tetragonal phases at room temperature. Rayleigh wave velocity in superconducting samples was shown to be varied from 2.1 to 2.3 km/s in connection with cation R radius. The annealing of the crystals under oxygen flow at 450 °C produced 3-6% velocity increase. Tetragonal samples velocity values were found to be 10-15% lower the ones in orthorhombic modified crystals. © 1990.

引用

页码：559 / 562

页数：4

共 5 条

[1]

ALEKSANDROV VV, IN PRESS PHYSICS L A

[2] SOUND VELOCITIES OF YBA2CU3O7-DELTA SINGLE-CRYSTALS MEASURED BY BRILLOUIN SPECTROSCOPY [J].