Heating and high frequency nonlinearities in the surface impedance of high Tc superconductors

被引：0
|
作者：
Kermorvant, J. [1 ,2 ]
van der Beek, C. J. [1 ]
Mage, J. C.
Marcilhac, B. [2 ]
Lemaitre, Y. [2 ]
Bernard, R. [2 ]
Briatico, J. [2 ]
机构：
[1] Ecole Polytech, CNRS, UMR 7642, Solides Irradies Lab, F-91128 Palaiseau, France
[2] THALES, CNRS, Unite Mixte Rech Phys, UMR 137, F-91767 Palaiseau, France
来源：
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5: SUPERCONDUCTIVITY | 2009年 / 150卷
关键词：
D O I：
10.1088/1742-6596/150/5/052107
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Using the dielectric resonator method, we have investigated nonlinearities in the surface impedance Z(s) = R-s + jX(s) of YBa2Cu3O7-delta thin films at 10 GHz as a function of the incident microwave power level and temperature. The use of a rutile dielectric resonator allows us to measure the precise temperature of the films. We conclusively show that the usually observed increase of the surface resistance of YBa2Cu3O7-delta thin film as function of microwave power is due to local heating.
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页数：4
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