INFRARED ACTIVE PHONONS IN (PR2-XCEX)CUO4

被引：16

作者：

CRAWFORD, MK ^{[1
]}

BURNS, G ^{[1
]}

CHANDRASHEKHAR, GV ^{[1
]}

DACOL, FH ^{[1
]}

FARNETH, WE ^{[1
]}

MCCARRON, EM ^{[1
]}

SMALLEY, RJ ^{[1
]}

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 73卷 / 07期

关键词：

D O I：

10.1016/0038-1098(90)90373-J

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report infrared (IR) reflectivity measurements of polycrystals of the electron-doped superconductor (Pr2-xCex)CuO4. To understand the complex results, we utilized conducting ceramics in which the ab-plane phonons are screened, allowing observation of the A2u phonons (motion parallel to the c-axis). To obtain the Eu modes (motion in the ab-plane), we utilized small ab-plane single crystals. With these approaches, all of the allowed IR phonons (3A2u + 4Eu) were observed. We have assigned all of the modes to specific atomic motion. © 1990.

引用

页码：507 / 509

页数：3

共 8 条

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