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pro vyhledávání: '"Willemsen, Balam A."'
Akademický článek
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Autor:
Srikanth, H., Willemsen, Balam A., Jacobs, T., Sridhar, S., Erb, A., Walker, E., Flukiger, R.
New features are reported in precision measurements of the complex microwave conductivity of high quality $YBa_{2}Cu_{3}O_{6.95}$ crystals grown in $BaZrO_{3}$ crucibles. A third peak in the normal conductivity, $\sigma_{1}(T)$, at around $80K$, and
Externí odkaz:
http://arxiv.org/abs/cond-mat/9610032
The vortex contribution to the dc field (H) dependent microwave surface impedance Z_s = R_s+iX_s of YBa_2Cu_3O_{7-x} thin films was measured using suspended patterned resonators. Z_s(H) is shown to be a direct measure of the flux density B(H) enablin
Externí odkaz:
http://arxiv.org/abs/supr-con/9609002
The non-linear microwave surface impedance of patterned YBCO thin films, was measured using a suspended line resonator in the presence of a perpendicular DC magnetic field of magnitude comparable to that of the microwave field. Signature of the virgi
Externí odkaz:
http://arxiv.org/abs/supr-con/9609001
Autor:
Oxx, S., Choudhury, D. P., Willemsen, Balam A., Srikanth, H., Sridhar, S., Cho, B. K., Canfield, P. C.
Measurements of the rf penetration depth \lambda(T,H,\theta ) are used to study the superconducting order parameter, vortex dynamics in the mixed state and delineate critical fields in the borocarbide superconductor YNi_2B_2C. The lower critical fiel
Externí odkaz:
http://arxiv.org/abs/supr-con/9602003
Autor:
Jacobs, T., Willemsen, Balam A., Sridhar, S., Nagarajan, R., Gupta, L. C., Hossain, Z., Mazumdar, Chandan, Canfield, P. C., Cho, B. K.
We report measurements of the microwave surface impedance of the borocarbide family of superconductors LnNi2B2C (Ln=Y, Er, Tm, Ho). The experiments enable direct measurements of the superfluid density, and are particularly sensitive to the influence
Externí odkaz:
http://arxiv.org/abs/supr-con/9504001
Akademický článek
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Autor:
Willemsen, Balam A.
Publikováno v:
IEEE Transactions on Applied Superconductivity. Mar2001 Part 1 of 3, Vol. 11 Issue 1, p60. 8p. 1 Diagram, 1 Graph.
Autor:
Willemsen, Balam A., King, B.H.
Publikováno v:
IEEE Transactions on Applied Superconductivity. Jun99 Part 3 of 3, Vol. 9 Issue 2, p4181. 4p. 5 Graphs.
Autor:
Matthaei, George L.1 gmatthaei@suptech.com, Willemsen, Balam A.1 bwillemsen@suptech.com, Prophet, Eric M.1 eprophet@suptech.com, Tsuzuki, Genichi1 gtsuzuki@suptech.com
Publikováno v:
IEEE Transactions on Microwave Theory & Techniques. Apr2008, Vol. 56 Issue 4, p901-912. 12p. 7 Graphs.