Subgap structures in the current-voltage characteristics of the intrinsic Josephson effect due to phonons

被引：9

作者：

Helm, C ^{[1
]}

Preis, C

Forsthofer, F

Keller, J

Schlenga, K

Kleiner, R

Muller, P

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Univ Erlangen Nurnberg, Inst Phys 3, D-91058 Erlangen, Germany

来源：

PHYSICA C | 1997年 / 293卷 / 1-4期

关键词：

D O I：

10.1016/S0921-4534(97)01514-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A modified RSJ model for the coupling of intrinsic Josephson oscillations and c-axis phonons in the high-T-c superconductors Tl2Ba2Ca2Cu3O10+delta and Bi2Sr2CaCu2O8+delta is developed. This provides a very good explanation for recently reported subgap structures in the I-V characteristics of the c-axis transport It turns out that the voltages of these structures coincide with the eigenfrequencies of longitudinal optical phonons, providing a new measurement technique for this quantity. The significantly enhanced microwave emission at the subgap structures in both the GHz and THz region is discussed. (C) 1997 Elsevier Science B.V.

引用

页码：60 / 63

页数：4

共 14 条

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