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recent publications:
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Induced ferroelectricity
in strained epitaxial SrTiO3 films on various substrates, R. Wördenweber,
E. Hollmann, R. Kutzner, and J. Schubert, J. Appl. Phys. 102, 044119
(2007)
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Quantitative analysis
of the guidance of vortices in superconducting films with magnetic
dots, M. P. González, E. Hollmann and R. Wördenweber, J. Appl.
Phys. 102, 063904 (2007)
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Analysis of Defects
in Epitaxial Oxide Thin Films via X-Ray Diffraction Technology Thin
Solid Films, E. Hollmann and R. Wördenweber , 515 (2007) 3530
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Ferroelectric Properties
of Compressively Strained Epitaxial SrTiO3 Films on Sapphire, R.
Wördenweber, E. Hollmann, Mahmood Ali, J. Schubert, G. Pickartz, and
Tai Keong Lee Journal of the European Ceramic Society 27 (2007) 2899-2902
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Low Dielectric
Loss BaNd2Ti5O14 Thick Films Prepared by an Electrophoretic Deposition
Technique, Zhi Fu, Aiying Wu, P.M. Vilarinho, A.I Kingon, and
R. Wördenweber, Appl. Phys. Lett. 90, 052912 (2007)
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Perspektiven oxidischer
supraleitender Bandleiter für die Steigerung der Energieeffizienz,
R. Wördenweber, Proceedings der ‚29. Ulmer Gespräche - Werkstoffe
und Oberflächen für die Energietechnik - Erzeugung, Anwendung und
Optimierung' in Ulm, 10.-11. 5.2007, Eugen G. Leuze-Verlag, Saulgau
(Bad SaulGau, Germany), ISBN978-387480-235-2 (2007), p. 88
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Anomalous Hall effect
studied via guided vortex motion, R. Wördenweber, J.S.K. Sankarraj,
P. Dymashevski and E. Hollmann, Physica C 434, 101-104 (2006)
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Magneto-optical
imaging of magnetic flux patterns in superconducting films with antidots,
V.V. Yurchenko, R. Wördenweber, Yu.M. Galperin, D.V. Shantsev,
J.I. Vestgården and T.H. Johansen Physica C: Superconductivity, 437-438,
357-360 (2006)
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Laser scanning
microscopy of guided vortex flow in microstructured high-Tc films,
A. Lukashenko, A. V. Ustinov, A. P. Zhuravel, E. Hollmann, and
R. Wördenweber J. Appl. Phys. 100, 023913 (2006)
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P. Lahl, R. Wördenweber
The mechanism of nonlinear microwave behaviour in high-Tc devices
Supercond. Science and Techn. 17 (2004) 369
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Fundamental microwave-power-limiting
mechanism of epitaxial high-temperature superconducting thin-film
devices, P. Lahl, R. Wördenweber, Journal of Applied Physics 97,
113911 (2005)
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Fundamental microwave-power-limiting
mechanism of epitaxial high-temperature superconducting thin-film
devices, P. Lahl and R. Wördenweber J. Appl. Phys. 97, 113911
(2005)
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Monte-Carlo simulation
of the particle transport during physical vapor deposition of ceramic
superconductors, E.K. Hollmann, V.A. Vol'pyas and R. Wördenweber
Physica C: Superconductivity, Volume 425, Issues 3-4, 15 September
2005, p. 101-110
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On the Principles
of Vortex Localization and Motion in Superconductor Thin Films with
Artificially Patterned Cavities; V.Yurchenko, M.Jirsa, O.Stupakov,
and R.Wördenweber, Journal of Low Temperature Physics, Vol. 139 (2005)
331-338
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Anisotropic Vortex
Channelling in YBaCuO Thin Films with ordered Antidot Arrays,
A. Crisan, A. Pross, D. Cole, S.J. Bending, R. Wördenweber, P. Lahl,
and E. H. Brandt, Phys. Rev. B 71, 144504 (2005)
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Nonlinear
Microwave Properties of Ferroelectric Thin Films, R. Wördenweber,
R. Ott, P. Lahl, Journal of Electroceramics 13 (2005) 223-227.
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Vortex matter and
superconducting electronic devices, R Wördenweber, in High Temperature
Superconductivity 2 , Springer Verlag (Berlin-Heidelberg) 2004, edt.
A. V. Narlikar, p. 363 -411
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Magnetic flux dynamics
in a hexagonal network of superconducting islands, M Jirsa, V
Yurchenko, A V Bobyl, T H Johansen, D V Shantsev, R Wördenweber,
Physica C 404 (2004) 200-204
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Flux flow anistropy
in superconducting films with a regular array of holes, M S Welling,
R J Wijngaarden, C M Aegerter, R Wördenweber, P Lahl , Physica
C 404 (2004) 410-414.
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Guided vortex motion
in high-Tc superconducting thin films and devices with special arrangement
of artificial defects, R Wordenweber, P Dymashevski , Physica
C 404 (2004) 421-425.
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Analysis of the
vortex dynamics in high-Tc superconducting thin films with regular
arrays of artificial defects, V Yurchenko, P Lahl, S Bunte, M
Jirsa, R Wördenweber , Physica C 404 (2004) 426-430.
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Nonlinear Microwave
Properties of Ferroelectric Thin Films, R. Ott, P. Lahl, R. Wördenweber,
Appl. Phys. Lett. 84, 4147 (2004)
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Guidance of Vortices
and Vortex Ratchet Effect in High-Tc Superconducting Thin Films obtained
with Special Arrangements of Antidots, R. Wördenweber, P. Dymashevski,
and V. R. Misko, Phys. Rev. B 69, 184504 (2004)
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The mechanism of
nonlinear microwave behaviour in high-Tc devices , P. Lahl, R.
Wördenweber, SUST 17 (2004) 369
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Vortex matter in
active and passive superconducting devices, Roger Wördenweber,
Peter Lahl and Peter Selders, J. of Low temp. Phys. 130 (2003) 435-447
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Low-pressure large-area
magnetron sputter deposition of YBa2Cu3O7 for industrial applications,
Roger Wördenweber, Eugen Hollmann, Michael Poltiasev and Heinz-Werner
Neumüller, Supercond. Sci. Technol. 16 (2003) 584-589
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Nonlinear Microwave
Properties of HTS Thin Film Coplanar Devices, P. Lahl and R. Wördenweber,
IEEE Transactions on Applied Superconductivity 13 (2003) 2917
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Energy Gap of MgB2
From Microwave Surface Impedance Measurements, N. Klein, B.B.
Jin, R. Wördenweber, P. Lahl, W. N. Kang, Hyeong-Jin Kim, Eun-Mi Choi,
Sung-IK Lee, T. Dahm, K. Maki, IEEE Transactions on Applied Superconductivity
13 (2003) 3253
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Unexpected fourfold
symmetry in the resistivity of patterned superconductors, M. Pannetier,
R. J. Wijngaarden, I. Fløan, J. Rector, R. Griessen, P. Lahl, R. Wördenweber;
Phys. Rev. B 67, 212501 (2003)
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Reduction of low-frequency
noise in high-Tc SQUIDs by artificial defects, R. Wördenweber,
P. Selders, Physica C 366 (2002) 135-148
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Magnetic flux in
active and passive superconducting devices, R. Wördenweber, P.
Lahl, P. Dymashevski, Physica C 369 (2002) 141-148
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Alternative
Designs of Tunable Ferroelectric Capacities for Microwave Applications,
R. Ott and R. Wördenweber, Physica C 372-376 (2002) 540
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Power Handling Capability
and Intermodulation Distortion of High-Tc Microwave Resonators , Lahl,
P.; Hein, M. ; Wördenweber, R.: Physica C 372-376 (2002) 482
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Tunable
Ferroelectric Capacities for Microwave Applications, R. Ott and
R. Wördenweber,: Appl. Phys. Lett. 80 (2002) 2150
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Probing microwave
properties of high-Tc films via small dc magnetic fields, Lahl,
P.; Wördenweber, R. , Appl. Phys. Lett. 81, 505 (2002)
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Reduction of Low-Frequency
Noise in High Tc SQUIDs by Artificial Defects, Wördenweber, R.;
Selders, P., Physica C: Superconductivity, 366 (2) (2002) pp. 135-146
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Visualization of
novel flux dynamics in YBCO thin films with antidots, Surdeanu,
R. ; Wijngaarden, R.J.; Griessen, R. ; Einfeld, J.; Wördenweber, R.;
Europhysics Letters 54, (2001) p. 682
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Design of tunable
ferroelectric filters with a constant fractional bandwidth,Vendik,
I.; Vendik, O. ; Pleskachev, V.; Svishchev, A.; Wördenweber, R.: IMS
Digest, 2001, V. 3 pp. 1461-1464
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Pattern formation
due to non-linear vortex diffusion, Wijngaarden, R.J. ; Surdeanu,
R.; Huijbrechtse, J.M.; Rector, J.H.; Dam, B.; Einfeld, J.; Wördenweber,
R.; Griessen, R., Physica C 341-348 (2000) 1011-1014
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Reduction of the
microwave surface resistance in YBCO films by
microscopic defects, Einfeld, J.; Lahl, P.; Kutzner, R.; Wördenweber,
R.; Kästner, G., Physica C 351 103-117 (2001)
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Correlation of power
handling capability and intermodulation distortion in YBa2Cu3O7-d
thin films, Lahl, P.; Wördenweber, R. ; Hein, M.: Appl. Phys.
Lett, 79 512 (2001)
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Low-frequency noise
reduction in Y-Ba-Cu-O SQUIDs by artificial defects, Selders,
P.; Wördenweber, R., IEEE Trans. on Appl. Supercond. 11 (2001) 928
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Vortex lattice matching
effects and 1/f-noise reduction in HTS films and devices equipped
with regular arrays of artificial defects, Wördenweber, R.; Castellanos,
A. M.; and Selders, P., Physica C 332 (2000) 27
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Low-frequency noise
reduction in YBa2Cu3O7 superconducting
quantum interference devices by antidots, Selders, P.; and Wördenweber,
R., Appl. Phys. Lett. 76 (2000) 3277
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Defects in YBCO
films on CeO2 buffered sapphire and LaAlO3 and their impact on the
microwave properties, Einfeld, J.; Lahl, P.; Kutzner, R.; Wördenweber,
R.; and Kästner, G., Inst. Phys. Conf. Ser. 167 (II) (1999) 25
- Reduction of 1/f-noise in HTS-SQUIDs
by artificial defects, P.
Selders, A.M. Castellanos, M. Vaupel, R. Wördenweber, IEEE Trans. on
Appl. Supercond. 9 (1999) 2967
- Mechanism of vortex motion in high-temperature
superconductors, R. Wördenweber, Rep. Prog. Phys. 62 (1999) 187-236
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Growth of high-Tc
thin films (review), R. Wördenweber, Supercond. Sci. Technol.
12 (1999) R86 - R102
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