Publications

See a list of our preprints at arxiv.

  1. Ramakrishna Aluru, Haibiao Zhou, Antoine Essig, J.-Ph. Reid, Vladimir Tsurkan, Alois Loidl, Joachim Deisenhofer, Peter Wahl, Atomic-scale coexistence of short-range magnetic order and superconductivity in Fe1+ySe0.1Te0.9, arxiv/1711.10389, submitted.
  2. O. J. Clark, M. J. Neat, K. Okawa, L. Bawden, I. Marković, F. Mazzola, J. Feng, V. Sunko, J. M. Riley, W. Meevasana, J. Fujii, I. Vobornik, T. K. Kim, M. Hoesch, T. Sasagawa, P. Wahl, M. S. Bahramy, and P. D. C. King, Fermiology and superconductivity of topological surface states in PdTe2, submitted.
  3. Shun Chi, W. N. Hardy, Ruixing Liang, P. Dosanjh, Peter Wahl, S. A. Burke, D. A. Bonn, Extracting phase information about the superconducting order parameter from defect bound states, arxiv/1710.09088, submitted.
  4. Shun Chi, W. N. Hardy, Ruixing Liang, P. Dosanjh, Peter Wahl, S. A. Burke, D. A. Bonn, Determination of the Superconducting Order Parameter from Defect Bound State Quasiparticle Interference, arxiv/1710.09089, submitted.
  5. Alexander Yaresko, Andreas P. Schnyder, Hadj M. Benia, Chi-Ming Yim, Giorgio Levy, Andrea Damascelli, Christian R. Ast, Darren C. Peets, and Peter Wahl, Correct Brillouin zone and Electronic Structure of BiPd , arxiv/1704.03060, submitted.
  6. Zhixiang Sun, Ana Maldonado, Wendel S. Paz, Dmytro S. Inosov, Andreas P. Schnyder, Juan Jose Palacios, Natalya Yu. Shitsevalova, Vladimir B. Filippov, and Peter Wahl, Local doping of in-gap states in SmB6, submitted.
  7. Christopher Trainer, Chi-Ming Yim, Martin McLaren, and Peter Wahl, Cryogenic STM in 3D vector magnetic fields realized through a rotatable insert, Rev. Sci. Instrum. 88, 093705 (2017).
  8. Verena Schendel, Cyrille Barreteau, Mats Brandbyge, Bogdana Borca, Ivan Pentegov, Uta Schlickum, Markus Ternes, Peter Wahl, and Klaus Kern, Strong paramagnon scattering in single atom Pd contacts, Phys. Rev. B 96, 035155 (2017), arxiv/1702.02407.
  9. Shun Chi, Ramakrishna Aluru, Stephanie Grothe, Andreas Kreisel, Udai R. Singh, Brian M. Andersen, Walter N. Hardy, Ruixing Liang, Doug A. Bonn, Sarah A. Burke, Peter Wahl, Imaging the Real Space Structure of the Spin Fluctuations in an Iron-based superconductor, Nat. Commun. 8, 15996 (2017) (open), arxiv/1703.07002.
  10. Bogdana Borca, Tomasz Michnowicz, Rémi Pétuya, Marcel Pristl, Verena Schendel, Ivan Pentegov, Ulrike Kraft, Hagen Klauk, Peter Wahl, Rico Gutzler, Andrés Arnau, Uta Schlickum, and Klaus Kern, Electric-Field-Driven Direct Desulfurization, ACS Nano 11, 4703 (2017).
  11. A. Kreisel, R. Nelson, T. Berlijn, W. Ku, Ramakrishna Aluru, Shun Chi, Haibiao Zhou, Udai Raj Singh, Peter Wahl, Ruixing Liang, Walter N. Hardy, D. A. Bonn, P. J. Hirschfeld, and Brian M. Andersen, Towards a quantitative description of tunneling conductance of superconductors: application to LiFeAs, Phys. Rev. B 94, 224518 (2016), arxiv/1610.00619.
  12. Shun Chi, Ramakrishna Aluru, Udai Raj Singh, Ruixing Liang, Walter N. Hardy, D. A. Bonn, A. Kreisel, Brian M. Andersen, R. Nelson, T. Berlijn, W. Ku, P. J. Hirschfeld, and Peter Wahl, Impact of Iron-site defects on Superconductivity in LiFeAs, Phys. Rev. B 94, 134515 (2016), arxiv/1607.03192.
  13. H.M. Benia, E. Rampi, C. Trainer, C.M. Yim, A. Maldonado, D.C. Peets, A. Stöhr, U. Starke, K. Kern, A. Yaresko, G. Levy, A. Damascelli, C.R. Ast, A.P. Schnyder, P. Wahl, Observation of Dirac surface states in the noncentrosymmetric superconductor BiPd, Phys. Rev. B 94, 121407 (2016) (Editor’s suggestion), arxiv/1608.01277.
  14. D.C. Peets, A. Maldonado, M. Enayat, Z. Sun, P. Wahl, and A. Schnyder, Upper critical field of the noncentrosymmetric superconductor BiPd, Phys. Rev. B 93, 174504 (2016), arxiv/1604.06557.
  15. M. Enayat, Z. Sun, A. Maldonado, H. Suderow, S. Seiro, C. Geibel, S. Wirth, F. Steglich, and P. Wahl, Superconducting gap and vortex lattice of the heavy fermion compound CeCu2Si2, Phys. Rev. B 93, 045123 (2016), arxiv/1505.00804.
  16. V. Schendel, B. Borca, I. Pentegov, T. Michnowicz, U. Kraft, H. Klauk, P. Wahl, U. Schlickum, and K. Kern, Remotely controlled isomer selective molecular switching, Nano Letters 16, 93 (2016).
  17. B. Borca, V. Schendel, R. Pétuya, I. Pentegov, T. Michnowicz, U. Kraft, H. Klauk, A. Arnau, P. Wahl, U. Schlickum, and K. Kern, Bipolar conductance switching of single anthradithiophene molecules, ACS Nano 9, 12506 (2015).
  18. U.R. Singh, S. C. White, S. Schmaus, V. Tsurkan, A. Loidl, J. Deisenhofer, and P. Wahl, Evidence of Orbital Order and its Relation to Superconductivity in FeSe0.4Te0.6, Sci. Adv. 1, e1500206 (2015) (open), arxiv/1309.5210.
  19. U.R. Singh, R. Aluru, Y. Liu, C. Lin, and P. Wahl, Preparation of magnetic tips for spin-polarized STM on Fe1+yTe, Phys. Rev. B 91, 161111 (2015), arxiv/1411.1976.
  20. Z. Sun, M. Enayat, A. Maldonado, C. Lithgow, E. Yelland, D.C. Peets, A. Yaresko, A.P. Schnyder and P. Wahl, Dirac Surface States and Nature of Superconductivity in Noncentrosymmetric BiPd, Nat. Commun. 6, 6633 (2015) (open), arxiv/1407.5667.
  21. M. Enayat, Z. Sun, U. R. Singh, R. Aluru, S. Schmaus, A. Yaresko, Y. Liu, C. Lin, V. Tsurkan, A. Loidl, J. Deisenhofer, and P. Wahl, Real Space Imaging of the Atomic-Scale Magnetic Structure of Fe1+yTe, Science 345, 653 (2014).
    Media coverage:

    see also:

    • news item of the School of Physics and Astronomy of the University of St Andrews
    • press release by University of St Andrews
    • press release by Max Planck Society [german,english]
  22. U. R. Singh, S. C. White, S. Schmaus, V. Tsurkan, A. Loidl, J. Deisenhofer, P. Wahl, Spatial Inhomogeneity of the Superconducting Gap and Order Parameter in FeSe0.4Te0.6, Phys. Rev. B. 88, 155124 (2013), arxiv/1308.4339.
  23. L. Vitali, P. Wahl, R. Ohmann, J. Bork, Y. Zhang, L. Diekhöner, and K. Kern, Quantum Transport Through Single Atoms and Molecules, Phys. Stat. Sol. B 250, 2437 (2013).
  24. Y. Zhang, S. Kahle, T. Herden, C. Stroh, M. Mayor, U. Schlickum, M. Ternes, P. Wahl, and K. Kern, Temperature and Magnetic Field Dependence of a Kondo System in the Weak Coupling Regime, Nat. Commun. 4, 2110 (2013) (open).
  25. Y. Zhang, P. Wahl, and K. Kern, Experimental visualization of scattering at defects in
    electronic transport through a single atomic junction
    , Phys. Rev. B 87, 205417 (2013).
  26. U. R. Singh, M. Enayat, S. C. White and P. Wahl, Construction and performance of a dilution-refrigerator based spectroscopic-imaging scanning tunneling microscope, Rev. Sci. Instrum. 84, 013708 (2013).
  27. P. Wahl, High-temperature superconductivity: Charting the pseudogap, Nat. Phys. 8, 514 (2012) (News&Views)
  28. P. Wahl, L. Diekhöner, M.A. Schneider, F. Treubel, C.T. Lin, and K. Kern, Local spectroscopy of the Kondo lattice YbAl3: Seeing beyond the surface with scanning tunneling microscopy and spectroscopy, Phys. Rev. B 84, 245131 (2011).
  29. S. White, U.R. Singh, and P. Wahl, A stiff STM head for measurement at low temperatures and in high magnetic fields, Rev. Sci. Instr. 82, 113708 (2011).
  30. J. Bork, Y. Zhang, L. Diekhöner, L. Borda, P. Simon, J. Kroha, P. Wahl, and K. Kern, A tunable two-impurity Kondo system in an atomic point contact, Nat. Phys. 7, 901 (2011) (see also arxiv/1108.0869).
    see also:

  31. Y. Zhang, P. Wahl, and K. Kern, Quantum Point Contact Microscopy, Nano Letters 11, 3838 (2011).
    Media coverage:

    see also:

  32. A.R. Schmidt, M.H. Hamidian, P. Wahl, F. Meier, A.V. Balatsky, J.D. Garrett, T.J. Williams, G.M. Luke, and J.C. Davis, Imaging the Fano lattice to ‘hidden order’ transition in URu2Si2, Nature 465, 570 (2010).
    see also:

  33. J. Bork, P. Wahl, L. Diekhöner, and K. Kern, Potential energy landscape of metallic Moiré patterns, New Journal of Physics 11, 113051 (2009).
  34. P. Wahl, A.P. Seitsonen, L. Diekhöner, M.A. Schneider, and K. Kern, Kondo Effect of
    Substitutional Cobalt Impurities at Copper Surfaces
    , New Journal of Physics 11, 113015 (2009).
  35. J. Honolka, T.Y. Lee, K. Kuhnke, D. Repetto, V. Sessi, P. Wahl, A. Buchsbaum, P. Varga, S. Gardonio, C. Carbone, S.R. Krishnakumar, P. Gambardella, M. Komelj, R. Singer, M. Fähnle, K. Fauth, G. Schütz, A. Enders, and K. Kern, Complex magnetic phase in submonolayer Fe stripes on Pt(997), Phys. Rev. B 79,
    104430 (2009)
  36. Y. Kohsaka, C. Taylor, P. Wahl, A. Schmidt, J. Lee, K. Fujita, J.W. Alldredge, J. Lee, K. McElroy, H. Eisaki, S. Uchida, D.-H. Lee, and J.C. Davis, How Cooper pairs vanish approaching the Mott insulator in Bi2Sr2CaCu2O8+δ, Nature 454, 1072 (2008).
  37. N.N. Negulyaev, V.S. Stepanyuk, P. Bruno, L. Diekhöner, P. Wahl, and K. Kern, Bilayer growth of Co nanoislands on Cu(111), Phys. Rev. B 77, 125437 (2008).
  38. P. Wahl, L. Diekhöner, M.A. Schneider, and K. Kern, Background Removal in Scanning Tunneling Spectroscopy of Single Atoms and Molecules, Rev. Sci. Instr. 79, 043104 (2008).
  39. P. Wahl, P. Simon, L. Diekhöner, V.S. Stepanyuk, P. Bruno, M.A. Schneider, and K. Kern, Determining the exchange interaction between single magnetic atoms, Phys. Rev. Lett. 98, 056601 (2007) (Editor’s suggestion).
  40. C. R. Ast, G. Wittich, P. Wahl, R. Vogelgesang, D. Pacile, M. Falub, L. Moreschini, M.
    Papagno, M. Grioni, and K. Kern, Local detection of spin-orbit splitting by scanning tunneling spectroscopy, Phys. Rev. B 75, 201401 (2007).
  41. M.A. Schneider, P. Wahl, L. Vitali, L. Diekhöner, R. Vogelgesang, and K. Kern, Local measurements of hot-electron phase-coherence at metal surfaces, Appl. Phys. A 88, 443 (2007).
  42. L. Vitali, M. Burghard, P. Wahl, M.A. Schneider, and K. Kern, Local pressure-induced metallization of a semiconducting carbon nanotube in a crossed junction, Phys. Rev. Lett. 96, 086804 (2006).
  43. P. Wahl, L. Diekhöner, G. Wittich, L. Vitali, M.A. Schneider, and K. Kern, Kondo Effect of Molecular Complexes at Surfaces: Ligand Control of the Local Spin Coupling, Phys. Rev. Lett. 95, 166601 (2005).
  44. M.A. Schneider, P. Wahl, L. Diekhöner, L. Vitali, G. Wittich, and K. Kern, Kondo Effect of Co Adatoms on Ag Monolayers on Noble Metal Surfaces, Japan. J. Appl. Phys. 44, 5328 (2005).
  45. M.A. Schneider, L. Vitali, P. Wahl, N. Knorr, L. Diekhöner, G. Wittich, M. Vogelgesang and K. Kern, Kondo state of Co impurities at noble metal surfaces, Appl. Phys. A 80, 937 (2005).
  46. P.Wahl, L. Diekhöner, M.A. Schneider, L. Vitali, G. Wittich, and K. Kern,  Kondo
    temperature of Magnetic Impurities at Surfaces
    , Phys. Rev. Lett. 93, 176603 (2004).
  47. M. Roth, M. Weinelt, Th. Fauster, P. Wahl, M.A. Schneider, L. Diekhöner, and K. Kern, Scattering of image potential state electrons by steps on Cu(001), Appl. Phys. A 78, 155 (2004).
  48. P. Wahl, M.A. Schneider, L. Diekhöner, R. Vogelgesang and K. Kern, Quantum Coherence of Image-Potential States, Phys. Rev. Lett. 91, 106802 (2003).
  49. L. Vitali, P. Wahl, M. A. Schneider, K. Kern, V.M. Silkin, E.V. Chulkov and P.M. Echenique, Inter- and intraband inelastic scattering of hot surface-state electrons in Ag(111), Surf. Sci. Lett. 523, L47 (2003).
  50. N. Knorr, M. A. Schneider, L. Diekhöner, P. Wahl and K. Kern, Kondo Effect of Single Co Adatoms on Cu Surfaces, Phys. Rev. Lett. 88, 096804 (2002).

Conference Proceedings

  1. Z.J. Li, Y. Liu, S.C. White, P. Wahl, X.M. Xie, M.H. Jiang, and C.T. Lin, Single crystal growth and transport properties of Cu-doped topological insulator Bi2Se3, Phys. Proc. 36, 638 (2012).
  2. L. Diekhöner, M.A. Schneider, P. Wahl, A.N. Baranov, V.S. Stepanyuk, P. Bruno, and K. Kern, Spin polarized surface states of cobalt nanoislands on Cu(111), AIP Conf. Proc. 696, 53 (2003).
  3. M. Duisberg, P. Wahl and K. Wandelt, An ex-situ study of Pb underpotential deposition on Cu(111), Proceedings Vol. PV 2000-30, Electrochem. Soc. Pennington (2002) (link to table of contents).

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