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Search Publications by: Jim Booth (Fed)

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Displaying 101 - 123 of 123

Microwave Surface Impedance and Nonlinear Properties of MgB 2 Films

June 1, 2003
Author(s)
James Booth, Sang Y. Lee, Kenneth Leong, J. H. Lee, J. Lim, H. N. Lee, S. H. Moon, B. Oh
We have measured the temperature dependence of the microwave surface impedance and the nonlinear response of high-quality MgB 2 films on c-cut sapphire at temperatures below 40 K. MgB 2 films with surface resistance (Rs) as low as 0.09 mOhm} at 8 K and 19

On-Wafer Measurements of Nonlinear Effects in High Temperature Superconductors

March 1, 2001
Author(s)
James Booth, Leila R. Vale, Ronald H. Ono
We present the results of comprehensive on-wafer microwave probe station measurements of the nonlinear properties of coplanar waveguide devices patterned from HTS thin films. We introduce a sequence of measurements and analysis that is designed to describe

Coplanar Transmission Lines with Meandering Center Conductors in Y-Ba-Cu-O/Au Bilayers

December 31, 1999
Author(s)
C Weber, Ronald H. Ono, James Booth, Leila R. Vale, Samuel Benz, A. M. Klushin, H. Kohlstedt, C. Buchal, R. Semerad
We have investigated both conventional and meandering coplanar microwave transmission lines patterned in Y-Ba-Cu-O/Au bilayers on yttria-stablized zirconia and sapphire substrates. Within the meandering waveguides, the gentre conductor was deformed from a

Coplanar Transmission Lines with Meandering Center Conductors in Y-Ba-Cu-O/Au Bilayers

June 1, 1999
Author(s)
C Weber, Ronald H. Ono, James Booth, Leila R. Vale, Samuel Benz, A. M. Klushin, H. Kohlstedt, R. Semerad
We have investigated both conventional and meandering coplanar microwave transmission lines patterned in Y-Ba-Cu-O/Au bilayers on yttria-stablized zirconia and sapphire substrates. Within the meandering waveguides, the gentre conductor was deformed from a

Role of Oxygen Pressure during Deposition on the Microwave Properties of YBCO Films

June 1, 1999
Author(s)
David A. Rudman, F. J. Stork, James Booth, J. Y. Juang, Leila R. Vale, G. J. Beatty, C. I. Williams, James A. Beall, Ronald H. Ono, S. B. Qadri, M. S. Osofsky, E. F. Skelton, John H. Claassen, G. Gibson, J. L. MacManus-Driscoll, N. Malde, L. F. Cohen
We have studied the effect of oxygen pressure (PO 2) during pulsed laser deposition on the properties of YBCO films, with particular attention to the low power microwave surface resistance R s.

Simultaneous Optimization of Linear and Nonlinear Microwave Response of YBCO Films

June 1, 1999
Author(s)
James Booth, James A. Beall, David A. Rudman, Leila R. Vale, Ronald H. Ono, Christopher L. Holloway, S. B. Qadri, M. S. Osofsky, E. F. Skelton, J. H. Claasen, G. Gibson, J. L. MacManus-Driscoll, N. Malde, L. F. Cohen
We present results of a systematic study of the effect of film deposition temperture on both the linear and nonlinear response of super-conducting Yba 2Cu 3O7-γ^ (YBCO) thin films and devices at microwave frequencies. Measurements of the unpatterned films
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