ANOMALOUS INTENSITY OF THE 335 CM-1 PHONON IN YBA2CU3O7-DELTA

被引：13

作者：

LI, R ^{[1
]}

WEIMER, U ^{[1
]}

FEILE, R ^{[1
]}

TOMEROSA, C ^{[1
]}

ADRIAN, H ^{[1
]}

机构：

[1] TH DARMSTADT,INST FESTKORPERPHYS,W-6100 DARMSTADT,GERMANY

来源：

PHYSICA C | 1991年 / 175卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(91)90238-T

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report results on Raman scattering for the intensity of the 335 cm-1 photon of A(g) (pseudo B1g) symmetry in thin YBa2Cu3O7-delta films on MgO and LaAlO3 substrates. The intensity of this phonon shows a pronounced increase below 100 K and saturates at low temperatures. We also observe an additional intensity peaking at temperatures close to the superconducting transition T(C). This may indicate a structural phase transition in the vicinity of T(C).

引用

页码：89 / 92

页数：4

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