Bastian M. Wojek

Researcher

Contact

E-mail: basti[a]kth.se (PGP key, S/MIME certificate)
XMPP: bmw[a]jabber.fsfe.org (OTR only)

Previous affiliations

2011–2015
Researcher in the Strongly Correlated Systems group, KTH Royal Institute of Technology, ICT MNF MF

2006–2011
Research assistant in the Low-Energy Muons group, Laboratory for Muon-Spin Spectroscopy, Paul Scherrer Institute and the Superconductivity and Magnetism group, Physik-Institut, University of Zurich

2006–2010
Teaching assistant for physics at the Physik-Institut, University of Zurich

2004–2006
Teaching assistant for mathematics at the Department of Mathematics, Swiss Federal Institute of Technology Zurich (ETH Zurich)

Education

2011
Doctor of Natural Sciences (Dr. sc. nat.)

2006–2011
PhD studies of experimental physics, Physik-Institut, University of Zurich, Switzerland and Laboratory for Muon-Spin Spectroscopy, Paul Scherrer Institute, Switzerland

2006
Master of Science (M.Sc. ETH)

2001–2006
Studies of physics, Swiss Federal Institute of Technology Zurich (ETH Zurich), Switzerland

2001
Abitur (university-entrance diploma)

1992–2001
Secondary school, Theresien-Gymnasium Ansbach, Germany

Publications

• Free-standing magnetic nano-membranes for electron spin-filtering applications
  T. Övergaard, B. M. Wojek, M. Leandersson, H. Ohldag, S. Bonetti, T. Wiell, and O. Tjernberg
  arXiv:1709.03838 (2017), (open access, BibT_eX).
• Direct observation and temperature control of the surface Dirac gap in a topological crystalline insulator
  B. M. Wojek, M. H. Berntsen, V. Jonsson, A. Szczerbakow, P. Dziawa, B. J. Kowalski, T. Story, and O. Tjernberg
  Nat. Commun. 6, 8463 (2015), (open access, BibT_eX, citing articles).
• Comment on “Probing two- and three-dimensional electrons in MgB₂ with soft x-ray angle-resolved photoemission”
  B. M. Wojek
  arXiv:1502.03226 (2015), (open access, BibT_eX).
• Band inversion and the topological phase transition in (Pb,Sn)Se
  B. M. Wojek, P. Dziawa, B. J. Kowalski, A. Szczerbakow, A. M. Black-Schaffer, M. H. Berntsen, T. Balasubramanian, T. Story, and O. Tjernberg
  Phys. Rev. B 90, 161202(R) (2014), (open access, BibT_eX, citing articles).
• Site-dependent charge transfer at the Pt(111)-ZnPc interface and the effect of iodine
  S. Ahmadi, B. Agnarsson, I. Bidermane, B. M. Wojek, Q. Noël, C. H. Sun, and M. Göthelid
  J. Chem. Phys. 140, 174702 (2014), (open access, BibT_eX, citing articles).
• Two-Dimensional Magnetic and Superconducting Phases in Metal-Insulator La_2−xSr_xCuO₄ Superlattices Studied by Low-Energy Muon-Spin Rotation
  A. Suter, E. Morenzoni, T. Prokscha, B. M. Wojek, H. Luetkens, A. Gozar, G. Logvenov, and I. Božović
  JPS Conf. Proc. 2, 010204 (2014), (open access, BibT_eX).
• Low-Energy Muons at PSI: Examples of Investigations of Superconducting Properties in Near-Surface Regions and Heterostuctures
  E. Morenzoni, T. Prokscha, H. Saadaoui, Z. Salman, A. Suter, B. M. Wojek, J. Baglo, I. Božović, M. Hossain, R. F. Kiefl, G. Logvenov, and O. Ofer
  JPS Conf. Proc. 2, 010201 (2014), (open access, BibT_eX, citing articles).
• Observation of topological crystalline insulator surface states on (111)-oriented Pb_1−xSn_xSe films
  C. M. Polley, P. Dziawa, A. Reszka, A. Szczerbakow, R. Minikayev, J. Z. Domagała, S. Safaei, P. Kacman, R. Buczko, J. Adell, M. H. Berntsen, B. M. Wojek, O. Tjernberg, B. J. Kowalski, T. Story, and T. Balasubramanian
  Phys. Rev. B 89, 075317 (2014), (open access, BibT_eX, citing articles).
• Direct observation of decoupled Dirac states at the interface between topological and normal insulators
  M. H. Berntsen, O. Götberg, B. M. Wojek, and O. Tjernberg
  Phys. Rev. B 88, 195132 (2013), (open access, BibT_eX, citing articles).
• Magnetic phase diagram of low-doped La_2−xSr_xCuO₄ thin films studied by low-energy muon-spin rotation
  E. Stilp, A. Suter, T. Prokscha, E. Morenzoni, H. Keller, B. M. Wojek, H. Luetkens, A. Gozar, G. Logvenov, and I. Božović
  Phys. Rev. B 88, 064419 (2013), (open access, BibT_eX, citing articles).
• Nonlocal effect and dimensions of Cooper pairs measured by low-energy muons and polarized neutrons in type-I superconductors
  V. Kozhevnikov, A. Suter, H. Fritzsche, V. Gladilin, A. Volodin, T. Moorkens, M. Trekels, J. Cuppens, B. M. Wojek, T. Prokscha, E. Morenzoni, G. J. Nieuwenhuys, M. J. Van Bael, K. Temst, C. Van Haesendonck, and J. O. Indekeu
  Phys. Rev. B 87, 104508 (2013), (open access, BibT_eX, citing articles).
• Spin-polarized (001) surface states of the topological crystalline insulator Pb_0.73Sn_0.27Se
  B. M. Wojek, R. Buczko, S. Safaei, P. Dziawa, B. J. Kowalski, M. H. Berntsen, T. Balasubramanian, M. Leandersson, A. Szczerbakow, P. Kacman, T. Story, and O. Tjernberg
  Phys. Rev. B 87, 115106 (2013), (open access, BibT_eX, citing articles).
• Topological crystalline insulator states in Pb_1−xSn_xSe
  P. Dziawa, B. J. Kowalski, K. Dybko, R. Buczko, A. Szczerbakow, M. Szot, E. Łusakowska, T. Balasubramanian, B. M. Wojek, M. H. Berntsen, O. Tjernberg, and T. Story
  Nat. Mater. 11, 1023–1027 (2012), (open access, BibT_eX, citing articles).
• The J_eff = ½ insulator Sr₃Ir₂O₇ studied by means of angle-resolved photoemission spectroscopy
  B. M. Wojek, M. H. Berntsen, S. Boseggia, A. T. Boothroyd, D. Prabhakaran, D. F. McMorrow, H. M. Rønnow, J. Chang, and O. Tjernberg
  J. Phys.: Condens. Matter 24, 415602 (2012), (open access, BibT_eX, citing articles).
• Musrfit: A Free Platform-Independent Framework for μSR Data Analysis
  A. Suter and B. M. Wojek
  Physics Procedia 30, 69–73 (2012), (open access, BibT_eX, citing articles).
• Zero-field Spin Depolarization of Low-Energy Muons in Ferromagnetic Nickel and Silver Metal
  H. Saadaoui, Z. Salman, T. Prokscha, A. Suter, B. M. Wojek, and E. Morenzoni
  Physics Procedia 30, 164–167 (2012), (open access, BibT_eX, citing articles).
• Absolute Value and Anisotropy of the Magnetic Penetration Depth in YBa₂Cu₃O_6.92
  M. D. Hossain, J. C. Baglo, B. M. Wojek, O. Ofer, S. R. Dunsiger, G. D. Morris, T. Prokscha, H. Saadaoui, Z. Salman, D. A. Bonn, R. Liang, W. N. Hardy, A. Suter, E. Morenzoni, and R. F. Kiefl
  Physics Procedia 30, 235–240 (2012), (open access, BibT_eX, citing articles).
• Superconductivity in La_1.56Sr_0.44CuO₄/La₂CuO₄ Superlattices
  A. Suter, E. Morenzoni, T. Prokscha, H. Luetkens, B. M. Wojek, G. Logvenov, A. Gozar, and I. Božović
  Physics Procedia 30, 271–274 (2012), (open access, BibT_eX, citing articles).
• Absolute value and temperature dependence of the magnetic penetration depth in Ba(Co_0.074Fe_0.926)₂As₂
  O. Ofer, J. C. Baglo, M. D. Hossain, R. F. Kiefl, W. N. Hardy, A. Thaler, H. Kim, M. A. Tanatar, P. C. Canfield, R. Prozorov, G. M. Luke, E. Morenzoni, H. Saadaoui, A. Suter, T. Prokscha, B. M. Wojek, and Z. Salman
  Phys. Rev. B 85, 060506(R) (2012), (open access, BibT_eX, citing articles).
• Magnetism, superconductivity, and coupling in cuprate heterostructures probed by low-energy muon-spin rotation
  B. M. Wojek, E. Morenzoni, D. G. Eshchenko, A. Suter, T. Prokscha, H. Keller, E. Koller, Ø. Fischer, V. K. Malik, C. Bernhard, and M. Döbeli
  Phys. Rev. B 85, 024505 (2012), (open access, BibT_eX, citing articles).
• Mixed state of La_1.83Sr_0.17CuO₄ studied by means of muon-spin rotation and magnetization experiments in a low magnetic field
  B. M. Wojek, S. Weyeneth, S. Bosma, E. Pomjakushina, and R. Puźniak
  Phys. Rev. B 84, 144521 (2011), (open access, BibT_eX, citing articles).
• Superconductivity and Magnetism in Cuprate Single Crystals and Thin-Film Heterostructures
  B. M. Wojek
  PhD thesis, University of Zurich, Faculty of Science (2011), (open access, BibT_eX).
• Two-Dimensional Magnetic and Superconducting Phases in Metal-Insulator La_2−xSr_xCuO₄ Superlattices Measured by Muon-Spin Rotation
  A. Suter, E. Morenzoni, T. Prokscha, B. M. Wojek, H. Luetkens, G. Nieuwenhuys, A. Gozar, G. Logvenov, and I. Božović
  Phys. Rev. Lett. 106, 237003 (2011), (open access, BibT_eX, citing articles).
• The Meissner effect in a strongly underdoped cuprate above its critical temperature
  E. Morenzoni, B. M. Wojek, A. Suter, T. Prokscha, G. Logvenov, and I. Božović
  Nat. Commun. 2, 272 (2011), (open access, BibT_eX, citing articles).
• Direct measurement of the London penetration depth in YBa₂Cu₃O_6.92 using low-energy μSR
  R. F. Kiefl, M. D. Hossain, B. M. Wojek, S. R. Dunsiger, G. D. Morris, T. Prokscha, Z. Salman, J. Baglo, D. A. Bonn, R. Liang, W. N. Hardy, A. Suter, and E. Morenzoni
  Phys. Rev. B 81, 180502(R) (2010), (open access, BibT_eX, citing articles).
• Magnetism and superconductivity in cuprate heterostructures studied by low energy μSR
  B. M. Wojek, E. Morenzoni, D. G. Eshchenko, A. Suter, T. Prokscha, E. Koller, E. Treboux, Ø. Fischer, and H. Keller
  Physica B 404, 720–723 (2009), (open access, BibT_eX, citing articles).
• μSR Studies of Hydrogen-Bonded Ferroelectrics and Antiferroelectrics
  B. M. Wojek
  Master thesis, ETH Zurich, Department of Physics (2006), (BibT_eX).

Useful Links

•  The NIST Guide for the use of the International System of Units
• musrfit user manual
• musrfit technical description
• T_eX Live—a cross-platform T_eX distribution
• gnuplot—a portable command-line driven graphing utility
• —The Universal Operating System
•  Free science needs free software!