NONLINEAR SURFACE RESISTANCE IN YBa2Cu3O7-x THIN FILMS

被引：22

作者：

Oates, D. E. ^{[1
]}

Nguyen, P. P. ^{[2
,3
]}

Dresselhaus, G. ^{[3
,4
]}

Dresselhaus, M. S. ^{[5
,6
]}

Chin, C. C. ^{[5
]}

机构：

[1] MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02173 USA

[2] MIT, Dept Phys, Cambridge, MA 02139 USA

[3] US Air Force, Rome Lab, Hanscom AFB, MA 01731 USA

[4] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA

[5] MIT, Dept Phys, Cambridge, MA 02139 USA

[6] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233359

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The nonlinearity of the surface impedance Z, of YBa2Cu3O7-x, is of great importance for passive microwave devices. Since the Z, depends upon the microwave current and magnetic field H-rf, designs must consider the losses and intermodulation distortion at the operating power levels. We present a complete characterization of the nonlinearities in high-quality YBa2Cu3O7-x thin films. We have measured Z(s)(H-rf) for H-rf from 0 to approximately 1 kOe vs temperature from 4.2 K to T-c and vs frequency from 1.5 to 10 GHz using a stripline resonator. The results are compared to a coupled-grain model which shows good agreement for R-s(H-rf). The imaginary part of Z(s)(H-rf), i.e., X-s(H-rf), however, does not fit the model.

引用

页码：1114 / 1118

页数：5

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