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000056561 0247_ $$2DOI$$a10.1007/s10948-006-0124-4
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000056561 084__ $$2WoS$$aPhysics, Applied
000056561 084__ $$2WoS$$aPhysics, Condensed Matter
000056561 1001_ $$0P:(DE-Juel1)VDB5630$$aJin, B. B.$$b0$$uFZJ
000056561 245__ $$aMicrowave and Terahertz Surface Resistance of MgB2 Thin Films
000056561 260__ $$aNew York, NY$$bSpringer$$c2006
000056561 300__ $$a
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000056561 440_0 $$017001$$aJournal of Superconductivity and Novel Magnetism$$v19$$x1557-1939$$y7
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000056561 520__ $$aThe knowledge of the surface resistance R-s of superconducting thin film at microwave and terahertz (THz) regions is significant to design, make and assess superconducting microwave and THz electronic devices. In this paper we reported the R-s of MgB2 films at microwave and THz measured with sapphire resonator technique and the time-domain THz spectroscopy, respectively. Some interesting results are revealed in the following: ( 1) A clear correlation is found between R-s and normal-state resistivity right above T-c, p(0), i.e., R-s decreases almost linearly with the decrease of p(0). (2) A low residual R-s, less than 50 mu Omega at 18 GHz is achieved by different deposition techniques. In addition, between 10 and 14 K, MgB2 has the lowest Rs compared with two other superconductors Nb3Sn and the high-temperature superconductor YBa2Cu3O7-delta (YBCO). (3) From THz measurement it is found that the R-s of MgB2 up to around 1 THz is lower than that of copper and YBCO at the temperature below 25 K. (4) The frequency dependence of R-s follows omega(n), where omega is angular frequency, and n is power index. However, n changes from 1.9 at microwave to 1.5 at THz. The above results clearly give the evidences that MgB2 thin film, compared with other superconductors, is of advantage to make superconducting circuits working in the microwave and THz regions.
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000056561 7001_ $$0P:(DE-HGF)0$$aDahm, T.$$b1
000056561 7001_ $$0P:(DE-HGF)0$$aKadlec, F.$$b2
000056561 7001_ $$0P:(DE-HGF)0$$aKuzel, P.$$b3
000056561 7001_ $$0P:(DE-Juel1)VDB22375$$aGubin, A. I.$$b4$$uFZJ
000056561 7001_ $$0P:(DE-HGF)0$$aChoi, E. M.$$b5
000056561 7001_ $$0P:(DE-HGF)0$$aKim, H. J.$$b6
000056561 7001_ $$0P:(DE-HGF)0$$aLee, S. I.$$b7
000056561 7001_ $$0P:(DE-HGF)0$$aKang, W. N.$$b8
000056561 7001_ $$0P:(DE-HGF)0$$aWang, S. F.$$b9
000056561 7001_ $$0P:(DE-HGF)0$$aZhou, Y. L.$$b10
000056561 7001_ $$0P:(DE-HGF)0$$aPogrebnyakov, A. V.$$b11
000056561 7001_ $$0P:(DE-HGF)0$$aRedwing, J. M.$$b12
000056561 7001_ $$0P:(DE-HGF)0$$aXi, X. X.$$b13
000056561 7001_ $$0P:(DE-Juel1)VDB5428$$aKlein, N.$$b14$$uFZJ
000056561 773__ $$0PERI:(DE-600)2246896-1$$a10.1007/s10948-006-0124-4$$gVol. 19$$q19$$tJournal of superconductivity and novel magnetism$$v19$$x1557-1939$$y2006
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000056561 9141_ $$aNachtrag$$y2006
000056561 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000056561 9201_ $$0I:(DE-Juel1)VDB46$$d31.12.2006$$gIPV$$kIPV$$lInstitut für Photovoltaik$$x1
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