The coplanar resonator technique for determining the surface impedance of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin films
作者： A. Porch , M.J. Lancaster , R.G. Humphreys
DOI: 10.1109/22.348089
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摘要: We describe how coplanar microwave resonators fabricated from patterned thin films of YBa/sub 2/Cu/sub 3/O/sub 7/(-/spl delta/) (YBCO) can he used to measure the ab-plane surface impedance Z/sub s/=R/sub s/+jX/sub s/ films, in particular absolute value and temperature dependence magnetic penetration depth /spl lambda/. The current distribution resonator is calculated by modelling as a network coupled transmission lines rectangular cross-sections; this then estimate lambda/(T) measurements different geometries onto same film. obtain values lambda/(0) range 150-220 nm. unloaded quality factors linear at 7.95 GHz are around 45000 15 K 6500 77 K. corresponding intrinsic R/sub be 23 mu//spl Omega/ 110 K, respectively. These comparable with those other high unpatterned YBCO reported literature. for best optimised appears insensitive effects patterning. >
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Zhengxiang Ma, R. C. Taber, L. W. Lombardo, A. Kapitulnik, M. R. Beasley, P. Merchant, C. B. Eom, S. Y. Hou, Julia M. Phillips, Microwave penetration depth measurements on Bi 2 Sr 2 CaCu 2 O 8 single crystals and YBa 2 Cu 3 O 7-δ thin films Physical Review Letters. ,vol. 71, pp. 781- 784 ,(1993) , 10.1103/PHYSREVLETT.71.781
A. A. Valenzuela, P. Russer, HighQcoplanar transmission line resonator of YBa2Cu3O7−xon MgO Applied Physics Letters. ,vol. 55, pp. 1029- 1031 ,(1989) , 10.1063/1.101576
A. Porch, M.J. Lancaster, R.G. Humphreys, N.G. Chew, Surface impedance measurements of YBa/sub 2/Cu/sub 3/O/sub 7/ thin films using coplanar resonators IEEE Transactions on Applied Superconductivity. ,vol. 3, pp. 1719- 1722 ,(1993) , 10.1109/77.233604
W. Rauch, E. Gornik, G. Sölkner, A. A. Valenzuela, F. Fox, H. Behner, Microwave properties of YBa2Cu3O7−x thin films studied with coplanar transmission line resonators Journal of Applied Physics. ,vol. 73, pp. 1866- 1872 ,(1993) , 10.1063/1.353173
M.C. Nuss, K.W. Goossen, P.M. Mankiewich, M.L. O'Malley, J.L. Marshall, R.E. Howard, Time-domain measurement of the surface resistance of YBa/sub 2/Cu/sub 3/O/sub 7/ superconducting films up to 500 GHz IEEE Transactions on Magnetics. ,vol. 27, pp. 863- 866 ,(1991) , 10.1109/20.133311
A. Porch, M.J. Lancaster, R.G. Humphreys, N.G. Chew, Non-linear microwave surface impedance of patterned YBa2Cu3O7 thin films Journal of Alloys and Compounds. ,vol. 195, pp. 563- 566 ,(1993) , 10.1016/0925-8388(93)90800-3
W. Chew, L.J. Bajuk, T.W. Cooley, M.C. Foote, B.D. Hunt, D.L. Rascoe, A.L. Riley, High-T/sub c/ superconducting coplanar waveguide filter IEEE Electron Device Letters. ,vol. 12, pp. 197- 199 ,(1991) , 10.1109/55.79554
Martin C. Nuss, P. M. Mankiewich, R. E. Howard, B. L. Straughn, T. E. Harvey, C. D. Brandle, G. W. Berkstresser, K. W. Goossen, P. R. Smith, Propagation of terahertz bandwidth electrical pulses on YBa2Cu3O7−δtransmission lines on lanthanum aluminate Applied Physics Letters. ,vol. 54, pp. 2265- 2267 ,(1989) , 10.1063/1.101519
W. T. Weeks, L. L.-H. Wu, M. F. McAllister, A. Singh, Resistive and Inductive Skin Effect in Rectangular Conductors IBM Journal of Research and Development. ,vol. 23, pp. 652- 660 ,(1979) , 10.1147/RD.236.0652
N. G. Chew, S. W. Goodyear, J. A. Edwards, J. S. Satchell, S. E. Blenkinsop, R. G. Humphreys, Effect of small changes in composition on the electrical and structural properties of YBa2Cu3O7thin films Applied Physics Letters. ,vol. 57, pp. 2016- 2018 ,(1990) , 10.1063/1.104152