Optical study of RE1 + xBa2 - xCu3O6 (RE = Nd, Sm) aaand YBa2Cu3O6 in the mid infrared range

被引：0

作者：

D. Barba

S. Jandl

A.A. Martin

C.T. Lin

M. Cardona

T. Wolf

机构：

[1] Centre de recherche sur les propriétés électroniques des matériaux avancés,

[2] Département de physique,undefined

[3] Université de Sherbrooke,undefined

[4] Sherbrooke,undefined

[5] Canada J1K 2R1,undefined

[6] Max Planck Institut für Festkörperforschung,undefined

[7] Heisenbergstrasse 1,undefined

[8] 70569 Stuttgart,undefined

[9] Germany,undefined

[10] Instituto de Pesquisa e Desenvolvimento,undefined

[11] IP&D Univap - S ao Jose dos Campos,undefined

[12] SP Av. Shishima Hifumi,undefined

[13] 2911 12.244-000 Brazil,undefined

[14] Institut für Festkörperphysik,undefined

[15] 4 Forschungszentrum Karlsruhe,undefined

[16] 76021 Karlsruhe,undefined

[17] Germany,undefined

来源：

The European Physical Journal B - Condensed Matter and Complex Systems | 2001年 / 22卷

关键词：

PACS. 74.72.Jt Other cuprates – 74.25.Gz Optical properties – 74.25.Ha Magnetic properties – 71.55.Ht Other nonmetals;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Infrared reflectance, and transmission measurements as well as Raman scattering have been used to study the RE1+xBa2-xCu3O6 (RE = Nd, Sm) and YBa2Cu3O6 absorption bands in the 1100-1500 cm-1 infrared range as a function of temperature and beam polarization. In addition to two-phonon absorption between 1100 and 1170 cm-1, we observe excitations around 1400 cm-1, occurring in oxygen rich enclosures within the samples, and assign them to an excitation involving two-phonons plus the 270 cm-1 local mode related to Cu-O broken chains. Thus, the previously reported possible magnetic origin of the 1436 cm-1 sharp absorption band in YBa2Cu3O6 is contested.

引用

页码：277 / 281

页数：4

共 50 条

[1] Optical study of RE1+xBa2-xCu3O6 (RE = Nd, Sm) and YBa2Cu3O6 in the mid infrared range
Barba, D
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Cardona, M
Wolf, T
EUROPEAN PHYSICAL JOURNAL B, 2001, 22 (03): : 277 - 281
[2] Oxygen Exchange in Pr1 + xBa2 – xCu3O6 + z Substitutional Solid Solutions
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[3] FAR INFRARED STUDY OF YBA2CU3O6
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[8] Phase diagram studies in RE1+xBa2-xCu3O7+δ, RE = Pr, Nd, Sm and Gd
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[9] PHOTOELECTRONIC PROPERTIES OF YBA2CU3O6
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[10] LATTICE STABILITY OF YBA2CU3O6 AND YBA2CU3O7
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