publications

2020

2020A. M. Ionescu, J. Simmendinger, M. Bihler, C. Miksch, P. Fischer, S. Soltan, G. Schütz and J. Albrecht, Magnetic properties of YBCO films covered with various soft magnetic coatings, Supercond. Sci. Technol. 33, 015002 (2020).

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2020 J Simmendinger, M Weigand, G Schütz and J Albrecht, Magnetic flux penetration into micron-sized superconductor/ferromagnet bilayers, Supercond. Sci. Technol. 33, 025015 (2020).

Link Datei

2019

2019L. Abele, A.K. Jäger, W. Schulz, S. Ruck, H. Riegel, T. Sörgel and J. Albrecht, Superoleophobic surfaces via functionalization of electrophoretic deposited SiO2 spheres on smart aluminum substrates, Appl. Surf. Sci. 490, 56-60 (2019).

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2019Y. P. Ivanov, S. Soltan, J. Albrecht, E. Goering, G. Schütz, Z. Zhang and A. Chuvilin, The Route to Supercurrent Transparent Ferromagnetic Barriers in Superconducting Matrix, ACS Nano 13, 5655 (2019).

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2019J. Simmendinger, J Hänisch, M Bihler, A M Ionescu, M Weigand, M Sieger, R Hühne, H Rijckaert, I van Driessche, G Schütz and J Albrecht, Magnetically induced anisotropy of flux penetration into strong-pinning superconductor/ferromagnet bilayers, New J. Phys. 21, 113019 (2019).

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2018

2018E. Baruch-El, M. Baziljevich, T. H. Johansen, J. Albrecht, A. Shaulov and Y. Yeshurun, Dendritic flux instability in MgB2 films above liquid hydrogen temperature, Supercond. Sci. Technol. 31, 025005 (2018).

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2018F. Köhn, W. Schulz und J. Albrecht, Verschleißschutzschichten auf schlauen Substraten – Geschützte Oberflächen mit Eigenschaften nach Maß, Galvanotechnik 109, 1051, (2018).

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2018M. Kommer, T. Sube, A. Richter, M. Fenker, W. Schulz, B. Hader and J. Albrecht, Enhanced wear resistance of molybdenum nitride coatings deposited by high power impulse magnetron sputtering by using micropatterned surfaces, Surf. Coat. Technol. 333, 1 (2018).

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2018J. Simmendinger, S. Ruoss, C. Stahl, M. Weigand, J. Gräfe, G. Schütz and J. Albrecht, Transmission x-ray microscopy at low temperatures: Irregular supercurrent flow at small length scales, Phys. Rev. B 97, 134515 (2018).

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2018W. Schulz und J. Albrecht, Neue Möglichkeiten durch Strukturierung, MO 11/18, 24 (2018).

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2017

2017C. Stahl, J. Gräfe, S. Ruoß, P. Zahn, J. Bayer, J. Simmendinger, G. Schütz and J. Albrecht, Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures, AIP Advances 7, 105019 (2017).

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2017S. Wengert, J. Albrecht, S. Ruoß, C. Stahl, G. Schütz and R. Schäfer, Smooth and rapid microwave synthesis of MIL-53(Fe) including superparamagnetic gamma-Fe2O3 nanoparticles, J. Magn. Magn. Mater. 444, 168 (2017).

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2017T. Sube, M. Kommer, M. Fenker, B. Hader and J. Albrecht, Reduced friction on γ-Mo2N coatings deposited by high power impulse magnetron sputtering on microstructured surfaces, Trib. Int. 106, 41(2017).

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2016

2016J. Albrecht, S. Brück, C. Stahl and S. Ruoß, Quantitative magneto-optical analysis of the role finite temperatures on the critical state in thin YBCO films, Supercond. Sci. Technol. 29, 114002 (2016).

Aufgenommen in die Sammlung "Superconductor Science and Technology: Highlights 2016"

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2016S. Ruoß, C. Stahl, J. Bayer, J. Albrecht and F. Laviano, High-resolution analysis of currents at low-angle grain boundaries in YBCO thin films using magneto-optics and magnetic x-ray microscopy, IEEE T. Appl. Supercond. 26, 7500606 (2016).

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2016C. Stahl, S. Ruoß, M. Weigand, M. Bechtel, G. Schütz and J. Albrecht, Magnetic x-ray microscopy at low temperatures – Visualization of flux distributions in superconductors, AIP Conf. Proc. 1696, 020031 (2016).

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2016S. Ruoß C. Stahl,, M. Weigand, P. Zahn, J. Bayer, G. Schütz, and J. Albrecht, The role of individual defects on the magnetic screening of HTSC films, New J. Phys.18, 103044 (2016).

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2015

2015S. Soltan J. Albrecht, E. Goering, L. Mustafa, G. Schütz, B. Keimer und H.-U. Habermeier, Preparation of a ferromagnetic barrier in YBCO thinner than the coherence length, J. Appl. Phys. 118, 223902 (2015).

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2015C. Stahl, S. Ruoß, M. Weigand, M. Bechtel, G. Schütz und J. Albrecht, Low temperature X-ray imaging of magnetic flux patterns in high temperature superconductors, J. Appl. Phys. 117, 17D109 (2015).

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2015S. Ruoß, C. Stahl, M. Weigand, G. Schütz and J. Albrecht, High-resolution dichroic imaging of magnetic flux distributions in superconductors with scanning x-ray microscopy, Appl. Phys. Lett. 106, 022601 (2015).

frei verfügbar

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2015M. Herden, T. Sube, H. Riegel, T. Sörgel, B. Hader und J. Albrecht, Mehrkomponentige Metalloberflächen mit Strukturen auf Mikrometermaßstab, Jahrbuch Oberflächentechnik 71, 282 (2015).

2014

2014B. Hader, M. Huber, B. Schuster, T. Sörgel und J. Albrecht, Metallschichten auf mikrostrukturierten Polymeroberflächen, Galvanotechnik 11, 2345 (2014)

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2014C. Erhardt, B. Hader, M. Bachmayr, M. Haupt und J. Albrecht, Tailored appearance of metal coatings on microengineered polyurethane films, Materialwissenschaft und Werkstofftechnik 45, 628 (2014).

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2014C. Katzer, C. Stahl, P. Michalowski, S. Treiber, M. Westerhausen, F. Schmidl, P. Seidel, G. Schütz, J. Albrecht, Increasing the sensor performance using Au modified superconducting YBCO thin films, Journal of Physics: Conf. Series 507, 012024 (2014).

frei verfügbar

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2014C. Stahl, P. Audehm, J. Gräfe, S. Ruoss, M. Weigand, M. Schmidt, S. Treiber, M. Bechtel, E. Goering, G. Schütz und J. Albrecht, Detecting magnetic flux distributions in superconductors with polarized X-rays, Phys. Rev. B 90, 104515 (2014).

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2014C. Stahl, P. Walker, S. Treiber, G. Christiani, G. Schütz and J. Albrecht, Using magnetic coupling in bilayers of superconducting YBCO and soft-magnetic CoFeB to map supercurrent flow, Europhys. Lett. 106, 027002 (2014).

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2014S. Treiber, C. Stahl, G. Schütz, S. Soltan und J. Albrecht, Stabilization of the dissipation-free current transport in inhomogeneous MgB2 thin films, Physica C 506, 1 (2014).

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2013 und früher

2013C Katzer, C Stahl, P Michalowski, S Treiber, F Schmidl, P Seidel, J Albrecht and G Schütz, Gold nanocrystals in high-temperature superconducting films: creation of pinning patterns of choice, New Journal of Physics 15, 113029 (2013).

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2013C. Stahl, S. Treiber, G. Schütz und J. Albrecht, The avalanche process in gold covered MgB2, Supercond. Sci. Technol. 26, 015007 (2013).

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2012B. Kugler, C. Stahl, S. Treiber, S. Soltan, S. Haug, G. Schütz, J. Albrecht, Microstructure and superconducting properties of MgB2 films prepared by solid state reaction of multilayer precursors of the elements, Thin Solid Films 520, 6985 (2012).

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2012S. Treiber, C. Stahl, G. Schütz and J. Albrecht, "Unusual flux jumps above 12 K in non-homogeneous MgB2 thin films", Supercond. Sci. Technol. 25, 056010 (2012).

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2011C. Katzer et al., Increased flux pinning in YBCO thin film devices through embedding of Au nanocrystals, Europhys. Lett. 95, 68005 (2011).

Autorenliste: C. Katzer, M. Schmidt, P. Michalowski, D. Kuhwald, F. Schmidl, V. Grosse, S. Treiber, C. Stahl, J. Albrecht, U. Hübner, A. Undisz, M. Rettenmayr, G. Schütz und P. Seidel

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2011S Brück, S Treiber, S Macke, P Audehm, G Christiani, S Soltan, H-U Habermeier, E Goering, J Albrecht, The temperature-dependent magnetization profile across an bilayer of ferromagnetic LCMO and superconducting YBCO, New Journal of Physics 13, 033023 (2011).

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2011S. Treiber, C. Stahl, G. Schütz und J. Albrecht, Stability of the current-carrying state in nonhomogeneous MgB2 films, Phys. Rev. B 84, 094533 (2011).

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2010S. Treiber, J. Albrecht, The formation and propagation of flux avalanches in tailored MgB2 films, New Journal of Physics 12, 093043 (2010).

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2009J. B. Willems, J. Albrecht, I. L. Landau und J. Hulliger, Superconducting phase formation in random neck synthesis, a study of the Y-Ba-Cu-O system by magneto-optics and magnetometry, Supercond. Sci. Technol. 22, 045013 (2009).

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2009M. Djupmyr, S. Soltan, H.-U. Habermeier und J. Albrecht, Temperature-dependent critical currents in superconducting YBCO and ferromagnetic LCMO hybrid structures, Phys. Rev. B 80, 184507 (2009).

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2009S. Treiber, B. Stuhlhofer, H.-U. Habermeier und J. Albrecht, Magnetic properties of MgB2/Co bilayers, Supercond. Sci. Technol. 22, 045007 (2009).

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2008A. Steppke, C. Becker, V. Grosse, L. Dörrer, F. Schmidl, P. Seidel, M. Djupmyr und J. Albrecht, Planar HTC SQUID gradiometer for simultaneous measurements of two magnetic filed gradients, Appl. Phys. Lett. 92, 122504 (2008).

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2008J. Albrecht, P. Audehm und M. Djupmyr, Chaotic vortex dynamics and low current phases in the remanent state of MgB2 thin films, Supercond. Sci. Technol. 21, 045016 (2008).

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2007G. Ravikumar, G. Yashwant, M. R. Singh, S. K. Gupta, S. Bhattacharya, S. Soltan, J. Albrecht, und H.-U. Habermeier, Interaction of ferromagnetic LCMO layers through a superconducting YBCO spacer, Physica C 460-462, 1375 (2007).

2007H.-U. Habermeier, S. Soltan und J. Albrecht, Dependence of the critical temperature of YBCO thin films on spin-polarized quasiparticle injection, Int. J. Mod. Phys. B 21, 3303 (2007).

2007H.-U. Habermeier, S. Soltan und J. Albrecht, Dependence of the critical temperature of YBCO thin films on spin-polarized quasiparticle injection, Physica C 460-462, 32 (2007).

2007J. Albrecht, A. T. Matveev, J. Strempfer, H.-U. Habermeier, D. Shantsev, Y. Galperin und T. H. Johansen, Dramatic role of critical current anisotropy on flux avalanches in MgB2 films, Phys. Rev. Lett. 98, 117001 (2007).

2007J. Albrecht, A. T. Matveev und H.-U. Habermeier, Unusual propagation of magnetic avalanches in gold covered MgB2, Physica C 460-462, 1245 (2007).

2007J. Albrecht, M. Djupmyr, S. Soltan, H.-U. Habermeier, M. R. Connolly und S. J. Bending, Inhomogeneous vortex distribution and magnetic coupling in superconductor-ferromagnet heterostructures, New Journal of Physics 9, 379 (2007).

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2007J. Albrecht, M. Djupmyr und S. Brück, Universal temperature scaling of flux line pinning in high-temperature superconductors, Journal of Physics: Condensed matter 19, 216211 (2007).

2007M. Djupmyr und J. Albrecht, Substrate-induced current anisotropy in YBCO thin films, Physica C 460-462, 1190 (2007).

2007S. Soltan, J. Albrecht und H.-U. Habermeier, Spin-polarization quasiparticle injection effects in the normal state of YBCO thin films, Physica C 460-462, 1088 (2007).

2007S. Soltan. J. Albrecht und H.-U. Habermeier, Transport properties of LCMO/YBCO hybrid structures, Materi. Sci. Engin. B 144, 15 (2007).

2006A. T. Matveev, J. Albrecht, H. Konuma, B. Stuhlhofer, U. Starke, H.-U. Habermeier und G. Schütz, Synthesis of MgB2 films in Mg vapor flow and their characterization, Supercond. Sci. Technol. 19, 299 (2006).

2005A. T. Matveev, J. Albrecht, H. Konuma, B. Stuhlhofer, U. Starke und H.-U. Habermeier, Highly homogeneous MgB2 prepared by new post-annealing process, Superconductors Science and Technology 18, 1313 (2005).

2005J. Albrecht, A. T. Matveev, M. Djupmyr, G. Schütz, B. Stuhlhofer und H.-U. Habermeier, Bending of magnetic avalanches in MgB2 thin films, Appl. Phys. Lett. 87, 182501 (2005).

2005J. Albrecht, S. Soltan und H.-U. Habermeier, Magnetic pinning of flux lines in heterostructures of cuprates and manganites, Phys. Rev. B 72, 092502 (2005).

2005M. Djupmyr, G. Cristiani, H.-U. Habermeier und J. Albrecht, Anisotropic temperature-dependent current densities in vicinal YBCO, Phys. Rev. B 72, 220507(R) (2005).

2005M. Fähnle, J. Albrecht, T. Eimüller, P. Fischer, E. Goering, D. Steiauf und G. Schütz, On the imaging of the flux line lattice of a type-II superconductor by soft x-ray absorption microscopy, J. Sync. Rad. 12, 251 (2005)

2005S. Brück und J. Albrecht, Experimental evidence for the dominant role of low-angle grain boundaries for the critical current density in epitaxially grown YBCO thin films, Phys. Rev. B 71, 174508 (2005).

2005S. Soltan, J. Albrecht und H.-U. Habermeier, Spin-polarized quasiparticle injection effects in YBCO thin films, Solid State Commun. 135, 461 (2005).

2004H.-U. Habermeier, J. Albrecht und S. Soltan, Enhancement of flux-line pinning in all-oxide superconductor/ferromagnet heterostructures, Superconductors Science and Technology 17, S140 (2004).

2004J. Albrecht, Low-angle grain boundaries of YBCO in external magnetic fields, in Magnetooptical Imaging, edited by T.H. Johansen and D. V. Shantsev (Kluwer Academic Publishers, The Netherlands, 2004), S. 159.

2004J. Albrecht, S. Leonhardt, H.-U. Habermeier, S. Brück, R. Spolenak und H. Kronmüller, Enhanced flux line pinning by substrate induced defects in YBCO thin films, Physica C 404, 18 (2004).

2004J. Albrecht, S. Soltan und H.-U. Habermeier, Hysteretic behavior of critical currents in superconductor-ferromagnet bilayers, Physica C 408-410, 482 (2004).

2004S. Soltan, J. Albrecht, G. Cristiani und H.-U. Habermeier, The role of spin diffusion quasiparticle in CMR/HTSC heterostructures, phys. stat. sol. (c) 1, 1836 (2004).

2004S. Soltan, J. Albrecht und H.-U. Habermeier, Ferromagnetic/superconducting bilayer structures: a model system for spin diffusion length estimation, Phys. Rev. B 70, 144517 (2004).

2003J. Albrecht, S. Leonhardt, R. Spolenak, U. Täffner, H.-U. Habermeier und G. Schütz, Surface patterning of SrTiO by 30 keV ion irradiation, Surf. Sci. 547, L847 (2003).

2003J. Albrecht, S. Soltan und H.-U. Habermeier, Hysteretic behavior of critical currents in heterostructures of high-temperature superconductors and ferromagnets, Europhys. Lett. 63, 881 (2003).

2003J. Albrecht, Temperature-dependent pinning of vortices in low-angle grain boundaries in YBCO, Phys. Rev. B 68, 054508 (2003).

2002Ch. Jooss, J. Albrecht, H. Kuhn, S. Leonhardt und H. Kronmüller, Magneto-optical studies of current distributions in HTC superconductors, Rep. Prog. Phys. 65, 651 (2002).

Übersichtsartikel: Frei verfügbar !!

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2002Ch. Jooss, K. Guth, V. Born und J. Albrecht, Electric field distribution at low-angle grain boundaries in high-temperature superconductors, Phys. Rev. B 65, 014505 (2002).

2002Ch. Jooss und J. Albrecht, Magneto-optical studies of flux pinning in high-temperature superconductors, Z. Metallkd. 93, 1065 (2002).

2002M. Kienzle, J. Albrecht, R. Warthmann, H. Kronmüller, S. Leonhardt und Ch. Jooss, Enhancement of the critical current density by silver sheeting of YBCO thin films, Phys. Rev. B 66, 054525 (2002).

2001C. Aruta, J. Zegenhagen, J. Albrecht et al., Structure of superconducting [BCO/CCO] superlattices on STO (001) investigated by X-ray scattering, phys. stat. sol. (a) 183, 353-364 (2001).

2001J. Albrecht, S. Leonhardt und H. Kronmüller, Influence of vortex-vortex interaction on critical currents across low-angle grain boundaries in YBCO thin films, Phys. Rev. B 63, 014507 (2001).

2000J. Albrecht, R. Warthmann, S. Leonhardt und H. Kronmüller, Current densities in low-angle grain boundaries of YBCO, Physica C 341-348, 1459-1460 (2000).

2000R. Warthmann, J. Albrecht, H. Kronmüller und Ch. Jooss, Spectral distribution of activation energies in YBCO thin films, Phys. Rev. B 62, 15226-15229 (2000).

2000S. Leonhardt, J. Albrecht, R. Warthmann, H.-U. Habermeier und H. Kronmüller, Influence of substrate irradiation on critical current density and microstructure in YBCO thin films, Physica C 341-348, 1979-1980 (2000).

2000S. Leonhardt, R. Warthmann, J. Albrecht, Ch. Jooss, H. Kronmüller, T. Haage, J. Zegenhagen und H.-U. Habermeier, Anisotropic flux pinning in thin YBCO-films by substrate modifications, Physica C 332, 214-218 (2000).

1998J. Albrecht, Ch. Jooss, R. Warthmann, A. Forkl und H. Kronmüller, Observation of microscopic currents in superconducting ceramics, Phys. Rev. B 57, 10332-10335 (1998).

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Prof. Dr. habil. Joachim Albrecht

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