Herstellung und Charakterisierung von 0, (pi) und 0-(pi) gekoppelten Josephson Tunnnelkontakten mit ferromagnetischer Barriere. Untersuchung von fraktionierten Flussquanten (Semifluxonen), Transporteigenschaften der SIFS-Vielfachschichten und (pi), 0-(pi) Kontakten im Quantenlimit.

• Applicant: Professor Dr. Martin P. Weides
• Subject Area: Experimental Condensed Matter Physics
• Term: from 2007 to 2010
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 42226388

• Final Report Year: 2010

Final Report Abstract

No abstract available

Publications

• Josephson junctions with planar and stepped ferromagnetic barrier Kryoelektronische Bauelemente 2007, Herrsching, Germany, October 2007
  Weides, M.
  
• Josephson junctions with planar and stepped ferromagnetic barriers Spintronics with superconductors, Ruhr-Universität Bochum, Germany, November 2007
  Weides, M.
  
• Josephson junctions with stepped ferromagnetic barrier. Frontiers of Josephson Physics and Nanoscience (FJPN07): 7th ESF and JSPS International AQDJJ Conference, Palinuro, Italy, September 2007
  Weides, M.
  
• Josephson junctions with stepped ferromagnetic barrier. Universität Erlangen-Nürnberg, Erlangen, Germany, December 2007
  Weides, M.
  
• Fabrication and characterization of short Josephson junctions with stepped ferromagnetic barrier. IEEE/CSC & ESAS European Superconductivity News Forum 3, ST27, January 2008
  U. Peralagu and M. Weides
  
• Josephson junctions with stepped ferromagnetic barrier Applied Superconductivity Conference Chicago, Illinois, USA, August 2008
  Weides, M.
  
• Josephson junctions with stepped ferromagnetic barrier Nanoelectronics Days 2008, Aachen, Germany, May 2008
  Weides, M.
  
• Josephson tunnel junctions with ferromagnetic Ni interlayer Nanostructured Superconductors: From Fundamentals to Applications, Freudenstadt, Germany, September 2008
  Weides, M.
  
• Magnetic anisotropy in ferromagnetic Josephson junctions. Appl. Phys. Lett.93, 52502 (2008)
  M. Weides
  
• Quantum Computation - Principles and Solid-State Concepts. R. Waser (Ed.): Nanotechnology, Volume 4: Information Technology II, Chapter 13, Wiley- VCH (2008)
  M. Weides and E. Goldobin
  
• Recent experiments on SIFS junctions with planar and stepped ferromagnetic interlayer Universität Erlangen-Nürnberg: Physikalisches Institut III, Winter Seminar, Pitztal, Austria, February 2008
  Weides, M.
  
• Static and dynamic properties of 0, π and 0–π ferromagnetic tunnel Josephson junctions. Phys. Rev. B 77, 214506 (2008)
  J. Pfeiffer, M. Kemmler, D. Koelle, R. Kleiner, E. Goldobin, M. Weides, A. K. Feofanov, J. Lisenfeld, and A. V. Ustinov
  
• Tailored Josephson phase by planar and stepped ferromagnetic interlayers Moscow International Symposium on Magnetism, Moscow, Russia, June 2008
  Weides, M.
  
• Tailored Josephson phase: 0, π and 0–π coupled SIFS junctions Spring Meeting of German Physical Society, Berlin, Germany, February 2008
  Weides, M.
  
• Josephson Junctions With Centered Step and Local Variation of Critical Current Density. IEEE Trans. Appl. Supercond. 19, 689 (2009)
  M. Weides
  
• Josephson tunnel junctions with ferromagnetic Fe0.75Co0.25 barriers. J. Phys. D: Appl. Phys. 42, 75005 (2009)
  D. Sprungmann, K. Westerholt, H. Zabel, M. Weides, and H. Kohlstedt
  
• Josephson tunnel junctions with strong ferromagnetic interlayer. Phys. Rev. B (2008) 79, 54501 (2009)
  A. A. Bannykh, J. Pfeiffer, V. S. Stolyarov, I. E. Batov, V. V. Ryazanov, and M. Weides
  
• Observation of Josephson coupling through an interlayer of antiferromagnetically ordered chromium. Phys. Rev. B 80, 064508 (2009)
  M. Weides, M. Disch, H. Kohlstedt, and D. E. Bürgler
  
• Magnetic interference patterns in 0−π superconductor/insulator/ferromagnet/superconductor Josephson junctions: Effects of asymmetry between 0 and π regions. Phys. Rev. B, 054522 (2010)
  M. Kemmler, M. Weides, M. Weiler, M. Opel, S. T. B. Goennenwein, A. S. Vasenko, A. A. Golubov, H. Kohlstedt, D. Koelle, R. Kleiner, E. Goldobin
  
• Visualizing supercurrents in ferromagnetic Josephson junctions with various arrangements of 0 and π segments
  C. Gürlich, S. Scharinger, M. Weides, H. Kohlstedt, R.G. Mints, E. Goldobin, D. Koelle, R. Kleiner