Publications

For most recent citation numbers and h-index I refer to my Google Scholar page or Web of Science.

2022

  1. A. J. H. Jones, R. Muzzio, S. Pakdel, D. Biswas, D. Curcio, N. Lanata, P. Hofmann, K. M. McCreary, B. T. Jonker, K. Watanabe, T. Taniguchi, S. Singh, R. J. Koch, C. Jozwiak, E. Rotenberg, A. Bostwick, J. A. Miwa, J. Katoch and S. Ulstrup:
    Visualizing band structure hybridization and superlattice effects in twisted MoS2/WS2 heterobilayers
    2D Materials 9, 015032 (2022)

2021

  1. D. Curcio, S. Pakdel, K. Volckaert, J. A. Miwa, S. Ulstrup, N. Lanatà, M. Bianchi, D. Kutnyakhov, F. Pressacco, G. Brenner, S. Dziarzhytski, H. Redlin, S. Y. Agustsson, K. Medjanik, D. Vasilyev, H.-J. Elmers, G. Schönhense, C. Tusche, Y.-J. Chen, F. Speck, T. Seyller, K. Bühlmann, R. Gort, F. Diekmann, K. Rossnagel, Y. Acremann, J. Demsar, W. Wurth, D. Lizzit, L. Bignardi, P. Lacovig, S. Lizzit, C. E. Sanders, and P. Hofmann:
    Ultrafast electronic line width broadening in the C 1s core level of graphene
    Physical Review B: Letters 104, L161104 (2021)

  2. P. Majchrzak, K. Volckaert, A. G. Cabo, D. Biswas, M. Bianchi, S. K. Mahatha, M. Dendzik, F. Andreatta, S. S. Grønborg, I. Marković, J. M. Riley, J. C. Johannsen, D. Lizzit, L. Bignardi, S. Lizzit, C. Cacho, O. Alexander, D. Matselyukh, A. S. Wyatt, R. T. Chapman, E. Springate, J. V. Lauritsen, P. D. C. King, C. E. Sanders, J. A. Miwa, P. Hofmann and S. Ulstrup:
    Spectroscopic view of ultrafast charge carrier dynamics in single- and bilayer transition metal dichalcogenide semiconductors
    Journal of Electron Spectroscopy and Related Phenomena 250, 147093 (2021)

  3. P. Majchrzak, S. Pakdel, D. Biswas, A. J. H. Jones, K. Volckaert, I. Marković, F. Andreatta, R. Sankar, C. Jozwiak, E. Rotenberg, A. Bostwick, C. E. Sanders, Y. Zhang, G. Karras, R. T. Chapman, A. S. Wyatt, E. Springate, J. A. Miwa, P. Hofmann, P. D. C. King, N. Lanata, Y. J. Chang and S. Ulstrup:
    Switching of the electron-phonon interaction in 1T-VSe2 assisted by hot carriers
    Physical Review B: Letters 103, L241108 (2021)

  4. P. Majchrzak, R. Muzzio, A. J. H. Jones, D. Curcio, K. Volckaert, D. Biswas, J. Gobbo, S. Singh, J. T. Robinson, K. Watanabe, T. Taniguchi, T. K. Kim, C. Cacho, J. A. Miwa, P. Hofmann, J. Katoch and S. Ulstrup:
    In Operando Angle-Resolved Photoemission Spectroscopy with Nanoscale Spatial Resolution: Spatial Mapping of the Electronic Structure of Twisted Bilayer Graphene
    Small Science 1, 2000075 (2021)

  5. D. Biswas, A. J. H. Jones, P. Majchrzak, B. K.Choi, T.-H. Lee, K. Volckaert, J. Feng, I. Marković, F. Andreatta, C.-J. Kang, H. J. Kim, I. H. Lee, C. Jozwiak, E. Rotenberg, A. Bostwick, C. E. Sanders, Y. Zhang, G. Karras, R. T. Chapman, A. S. Wyatt, E. Springate, J. A. Miwa, P. Hofmann, P. D. C. King, Y. J. Chang, N. Lanata and S. Ulstrup:
    Ultrafast triggering of insulator-metal transition in two-dimensional VSe2
    Nano Letters 21, 1968 (2021)

2020

  1. D. Curcio, A. J. H. Jones, R. Muzzio, K. Volckaert, D. Biswas, C. E. Sanders, P. Dudin, C. Cacho, S. Singh, K. Watanabe, T. Taniguchi, J. A. Miwa, J. Katoch, S. Ulstrup and P. Hofmann:
    Accessing the spectral function in a current-carrying device
    Physical Review Letters 125, 236403 (2020)

  2. M. Fortin-Deschênes, H. Zschiesche, T. O. Menteş, A. Locatelli, R. M. Jacobberger, F. Genuzio, M. J. Lagos, D. Biswas, C. Jozwiak, J. A. Miwa, S. Ulstrup, A. Bostwick, E. Rotenberg, M. S. Arnold, G. A. Botton and O. Moutanabbir:
    Pnictogens Allotropy and Phase Transformation during van der Waals Growth
    Nano Letters 20, 8258 (2020)

  3. A. J. H. Jones, R. Muzzio, P. Majchrzak, S. Pakdel, D. Curcio, K. Volckaert, D. Biswas, J. Gobbo, S. Singh, J. T. Robinson, K. Watanabe, T. Taniguchi, T. K. Kim, C. Cacho, N. Lanata, J. A. Miwa, P. Hofmann, J. Katoch and S. Ulstrup:
    Observation of Electrically Tunable van Hove Singularities in Twisted Bilayer Graphene from NanoARPES
    Advanced Materials 6, 2001656 (2020)
    selected for a cover
    selected for “Result of the Month” by scientaomicron

  4. B. K. Choi, S. Ulstrup, S. M. Gunasekera, J. Kim, S. Y. Lim, L. Moreschini, J. S. Oh, S.-H. Chun, C. Jozwiak, A. Bostwick, E. Rotenberg, H. Cheong, I.-W. Lyo, M. Mucha-Kruczynski and Y. J. Chang:
    Visualizing Orbital Content of Electronic Bands in Anisotropic 2D Semiconducting ReSe2
    ACS Nano 14, 7880 (2020)

  5. R. Muzzio, A. J. H. Jones, D. Curcio, D. Biswas, J. A. Miwa, P. Hofmann, K. Watanabe, T. Taniguchi, S. Singh, C. Jozwiak, E. Rotenberg, A. Bostwick, R. J. Koch, S. Ulstrup and J. Katoch:
    Momentum-resolved view of highly tunable many-body effects in a graphene/hBN field-effect device
    Physical Review B: Rapid Communications 101, 201409(R) (2020)

  6. S. Ulstrup, R. J. Koch, S. Singh, K. M. McCreary, B. T. Jonker, J. T. Robinson, C. Jozwiak, E. Rotenberg, A. Bostwick, J. Katoch and J. A. Miwa:
    Direct observation of minibands in a twisted graphene/WS2 bilayer
    Science Advances 6, eaay6104 (2020)

  7. D. Kutnyakhov, R. P. Xian, M. Dendzik, M. Heber, F. Pressacco, S. Y. Agustsson, L. Wenthaus, H. Meyer, S. Gieschen, G. Mercurio, A. Benz, K. Bühlman, S. Däster, R. Gort, D. Curcio, K. Volckaert, M. Bianchi, C. Sanders, J. A. Miwa, S. Ulstrup, A. Oelsner, C. Tusche, Y.-J. Chen, D. Vasilyev, K. Medjanik, G. Brenner, S. Dziarzhytski, H. Redlin, B. Manschwetus, S. Dong, J. Hauer, L. Rettig, F. Diekmann, K. Rossnagel, J. Demsar, H.-J. Elmers, P. Hofmann, R. Ernstorfer, G. Schönhense, Y. Acremann and W. Wurth:
    Time- and momentum-resolved photoemission studies using time-of-flight momentum microscopy at a free-electron laser
    Review of Scientific Instruments 91, 013109 (2020)

2019

  1. K. Volckaert, H. Rostami, D. Biswas, I. Marković, F. Andreatta, C. E. Sanders, P. Majchrzak, C. Cacho, R. T. Chapman, A. Wyatt, E. Springate, D. Lizzit, L. Bignardi, S. Lizzit, S. K. Mahatha, M. Bianchi, N. Lanata, P. D. C. King, J. A. Miwa, A. V. Balatsky, P. Hofmann and S. Ulstrup:
    Momentum-resolved linear dichroism in bilayer MoS2
    Physical Review B: Rapid Communications 100, 241406(R) (2019)

  2. H. Rostami, K. Volckaert, N. Lanata, S. K. Mahatha, C. E. Sanders, M. Bianchi, D. Lizzit, L. Bignardi, S. Lizzit, J. A. Miwa, A. V. Balatsky, P. Hofmann and S. Ulstrup:
    Layer and orbital interference effects in photoemission from transition metal dichalcogenides
    Physical Review B 100, 235423 (2019)

  3. B. Shevitski, S. Ulstrup, R. J. Koch, H. Cai, S. Tongay, L. Moreschini, C. Jozwiak, A. Bostwick, A. Zettl, E. Rotenbeg and S. Aloni:
    Tunable electronic structure in gallium chalcogenide van der Waals compounds
    Physical Review B 100, 165112 (2019)

  4. S. Ulstrup, C. E. Giusca, J. A. Miwa, C. E. Sanders, A. Browning, P. Dudin, C. Cacho, O. Kazakova, D. Kurt Gaskill, R. L. Myers-Ward, T. Zhang, M. Terrones and P. Hofmann:
    Nanoscale mapping of quasiparticle band alignments
    Nature Communications 10, 3283 (2019)

  5. S. S. Grønborg, K. Thorarinsdottir, L. Kyhl, J. Rodriguez-Fernandez, C. E. Sanders, M. Bianchi, P. Hofmann, J. A. Miwa, S. Ulstrup and J. V. Lauritsen:
    Basal Plane Oxygen Exchange of Epitaxial MoS2 without Edge Oxidation
    2D Materials 6, 045013 (2019)

  6. F. Andreatta, H. Rostami, A. G. Cabo, M. Bianchi, C. E. Sanders, D. Biswas, C. Cacho, A. J. H. Jones, R. T. Chapman, E. Springate, P. D. C. King, J. A. Miwa, A. Balatsky, S. Ulstrup and P. Hofmann:
    Transient Hot Electron Dynamics in Single-Layer TaS2
    Physical Review B 99, 165421 (2019)

  7. S. Ulstrup, R. J. Koch, D. Schwarz, K. M. McCreary, B. T. Jonker, S. Singh, A. Bostwick, E. Rotenberg, C. Jozwiak and J. Katoch:
    Imaging microscopic electronic contrasts at the interface of single-layer WS2 with oxide and boron nitride substrates
    Applied Physics Letters 114, 151601 (2019)

  8. C. Kastl, R. J. Koch, C. T. Chen, J. Eichhorn, S. Ulstrup, A. Bostwick, C. Jozwiak, T. R. Kuykendall, N. J. Borys, F. M. Toma, S. Aloni, A. Weber-Bargioni, E. Rotenberg and A. M. Schwartzberg:
    Effects of defects on band structure and excitons in WS2 revealed by nanoscale photoemission spectroscopy
    ACS Nano 13, 1284 (2019)

2018

  1. P. Lutz, S. Moser, V. Jovic, Y.-J. Chang, R. J. Koch, S. Ulstrup, J.-S. Oh, L. Moreschini, S. Fatale, M. Grioni, C. Jozwiak, A. Bostwick, E. Rotenberg, H. Bentmann and F. Reinert:
    Volatile two-dimensional electron gas in ultrathin BaTiO3 films
    Physical Review Materials 2, 094411 (2018),
    selected as editor’s suggestion

  2. G. Duvjir, B.-K. Choi, I. Jang, S. Ulstrup, S. Kang, T.-T. Ly, S. Kim, Y.-H. Choi, C. Jozwiak, A. Bostwick, E. Rotenberg, J.-G. Park, R. Sankar, K.-S. Kim, J. Kim and Y.-J. Chang:
    Emergence of a metal-insulator transition and high temperature charge density waves in VSe2 at the monolayer limit
    Nano Letters 18, 5432 (2018)

  3. R. J. Koch, J. Katoch, S. Moser, D. Schwarz, R. K. Kawakami, A. Bostwick, E. Rotenberg, C. Jozwiak and S. Ulstrup:
    Electronic structure of exfoliated and epitaxial hexagonal boron nitride
    Physical Review Materials 2, 074006 (2018)

  4. S. Ulstrup, P. Lacovig, F. Orlando, D. Lizzit, L. Bignardi, M. Dalmiglio, M. Bianchi, F. Mazzola, A. Baraldi, R. Larciprete, P. Hofmann and S. Lizzit:
    Photoemission Investigation of Oxygen Intercalated Epitaxial Graphene on Ru(0001)
    Surface Science 678, 57 (2018)

  5. J. Katoch, S. Ulstrup, R. J. Koch, S. Moser, K. M. McCreary, S. Singh, J. Xu, B. T. Jonker, R. K. Kawakami, A. Bostwick, E. Rotenberg and C. Jozwiak:
    Giant spin-splitting and gap renormalization driven by trions in single-layer WS2/h-BN heterostructures
    Nature Physics 14, 355 (2018)

2017

  1. V. Jovic, S. Moser, S. Ulstrup, D. Goodacre, E. Dimakis, R. J. Koch, L. Moreschini, S.-K. Mo, C. Jozwiak, A. Bostwick, E. Rotenberg, T. Moustakas and K. E. Smith:
    How Indium Nitride Senses Water
    Nano Letters 17, 7339 (2017)

  2. L. Moreschini, I. Lo Vecchio, N. P. Breznay, S. Moser, S. Ulstrup, R. Koch, J. Wirjo, C. Jozwiak, K. S. Kim, E. Rotenberg, A. Bostwick, J. G. Analytis and A. Lanzara:
    Quasiparticles and charge transfer at the two surfaces of the honeycomb iridate Na2IrO3
    Physical Review B: Rapid Communications 96, 161116(R) (2017)

  3. S. Ulstrup, A. G. Cabo, D. Biswas, J. M. Riley, M. Dendzik, C. E. Sanders, M. Bianchi, C. Cacho, D. Matselyukh, R. T. Chapman, E. Springate, P. D. C. King, J. A. Miwa and P. Hofmann:
    Spin and Valley Control of Free Carriers in Single-Layer WS2
    Physical Review B: Rapid Communications 95, 041405(R) (2017)

2016

  1. S. Ulstrup, J. Katoch, R. J. Koch, D. Schwarz, S. Singh, K. M. McCreary, H. K. Yoo, J. Xu, B. T. Jonker, R. K. Kawakami, A. Bostwick, E. Rotenberg and C. Jozwiak:
    Spatially Resolved Electronic Properties of Single-Layer WS2 on Transition Metal Oxides
    ACS Nano 10, 10058 (2016)

  2. M. Q. Arguilla, J. Katoch, K. Krymowski, N. D. Cultrara, J. Xu, X. Xi, A. Hanks, S. Jiang, R. D. Ross, R. J. Koch, S. Ulstrup, A. Bostwick, C. Jozwiak, D. McComb, E. Rotenberg, J. Shan, W. Windl, R. K. Kawakami and J. E. Goldberger:
    NaSn2As2: An Exfoliatable Layered van der Waals Zintl Phase
    ACS Nano 10, 9500 (2016)

  3. S. Ulstrup, M. Schüler, M. Bianchi, F. Fromm, C. Raidel, T. Seyller, T. O. Wehling and P. Hofmann:
    Manifestation of nonlocal electron-electron interaction in graphene
    Physical Review B: Rapid Communications 94, 081403(R) (2016)

  4. S. Ulstrup, A. G. Cabo, J. A. Miwa, J. M. Riley, S. S. Grønborg, J. C. Johannsen, C. Cacho, O. Alexander, R. T. Chapman, E. Springate, M. Bianchi, M. Dendzik, J. V. Lauritsen, P. D. C. King and P. Hofmann:
    Ultrafast Band Structure Control of a Two-Dimensional Heterostructure
    ACS Nano 10, 6315 (2016)

  5. A. Bruix, J. A. Miwa, N. Hauptmann, D. Wegner, S. Ulstrup, S. S. Grønborg, C. E. Sanders, M. Dendzik, A. G. Cabo, M. Bianchi, J. V. Lauritsen, A. A. Khajetoorians, B. Hammer and P. Hofmann:
    Single-Layer MoS2 on Au(111): Band gap renormalization and substrate interaction
    Physical Review B 93, 165422 (2016)

2015

  1. A. G. Cabo, J. A. Miwa, S. S. Grønborg, J. M. Riley, J. C. Johannsen, C. Cacho, O. Alexander, R. T. Chapman, E. Springate, M. Grioni, J. V. Lauritsen, P. D. C. King, P. Hofmann and S. Ulstrup:
    Observation of Ultrafast Free Carrier Dynamics in Single Layer MoS2
    Nano Letters 15, 5883 (2015)

  2. S. S. Grønborg, S. Ulstrup, M. Bianchi, M. Dendzik, C. E. Sanders, J. V. Lauritsen, P. Hofmann and J. A. Miwa:
    Synthesis of Epitaxial Single-Layer MoS2 on Au(111)
    Langmuir 31, 9700 (2015)

  3. J. A. Miwa, M. Dendzik, S. S. Grønborg, M. Bianchi, J. V. Lauritsen, P. Hofmann and S. Ulstrup:
    Van der Waals Epitaxy of Two-Dimensional MoS2-Graphene Heterostructures in Ultrahigh Vacuum
    ACS Nano 9, 6502 (2015)

  4. S. Ulstrup, J. C. Johannsen, F. Cilento, A. Crepaldi, J. A. Miwa, M. Zacchigna, C. Cacho, R. T. Chapman, E. Springate, F. Fromm, C. Raidel, T. Seyller, P. D. C. King, F. Parmigiani, M. Grioni and P. Hofmann:
    Ramifications of Optical Pumping on the Interpretation of Time-Resolved Photoemission Experiments on Graphene
    Journal of Electron Spectroscopy and Related Phenomena 200, 340 (2015)

  5. S. Ulstrup, J. C. Johannsen, A. Crepaldi, F. Cilento, M. Zacchigna, C. Cacho, R. T. Chapman, E. Springate, F. Fromm, C. Raidel, T. Seyller, F. Parmigiani, M. Grioni and P. Hofmann:
    Ultrafast Electron Dynamics in Epitaxial Graphene Investigated with Time- and Angle-Resolved Photoemission Spectroscopy
    Journal of Physics: Condensed Matter 27, 164206 (2015)

  6. L. Koefoed, M. Kongsfelt, S. Ulstrup, A. G. Cabo, A. Cassidy, P. Whelan, M. Bianchi, M. Dendzik, F. Pizzocchero, P. Bøggild, L. Hornekær, P. Hofmann, S. U. Pedersen, K. Daasbjerg:
    Facile Electrochemical Transfer of Large-Area Single Crystal Epitaxial Graphene from Ir(111)
    Journal of Physics D: Applied Physics 48, 115306 (2015)

  7. J. A. Miwa, S. Ulstrup, S. G. Sørensen, M. Dendzik, A. G. Cabo, M. Bianchi, J. V. Lauritsen and P. Hofmann:
    Electronic Structure of Epitaxial Single-Layer MoS2
    Physical Review Letters 114, 046802 (2015)

  8. J. C. Johannsen, S. Ulstrup, A. Crepaldi, F. Cilento, M. Zacchigna, J. A. Miwa, C. Cacho, R. T. Chapman, E. Springate, F. Fromm, C. Raidel, T. Seyller, P. D. C. King, F. Parmigiani, M. Grioni and P. Hofmann:
    Tunable Hot Carrier Multiplication and Cooling in Graphene
    Nano Letters 15, 326 (2015)

2014

  1. L. Omiciuolo, E. R. Hernández, E. Miniussi, F. Orlando, P. Lacovig, S. Lizzit, T. O. Menteş, A. Locatelli, R. Larciprete, M. Bianchi, S. Ulstrup, P. Hofmann, D. Alfé and A. Baraldi:
    Bottom-Up Approach for the Low-Cost Synthesis of Graphene-Alumina Nanosheet Interfaces using Bimetallic Alloys
    Nature Communications 5, 5062 (2014)

  2. S. Ulstrup, M. Andersen, M. Bianchi, L. Barreto, B. Hammer, L. Hornekær and P. Hofmann:
    Sequential Oxygen and Alkali Intercalation of Epitaxial Graphene on Ir(111): Enhanced Many-Body Effects and Formation of pn-Interfaces
    2D Materials 1, 025002 (2014)

  3. S. Ulstrup, J. C. Johannsen, F. Cilento, J. A. Miwa, A. Crepaldi, M. Zacchigna, C. Cacho, R. Chapman, E. Springate, S. Mammadov, F. Fromm, C. Raidel, T. Seyller, F. Parmigiani, M. Grioni, P. D. C. King and P. Hofmann:
    Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene
    Physical Review Letters 112, 257401 (2014),
    selected as editor’s suggestion and featured in Physics 7, 68 (2014)

  4. S. Ulstrup, J. C. Johannsen, M. Grioni and P. Hofmann:
    Extracting the Temperature of Hot Carriers in Time- and Angle-Resolved Photoemission
    Review of Scientific Instruments 85, 013907 (2014)

2013

  1. F. Mazzola, J. W. Wells, R. Yakimova, S. Ulstrup, J. A. Miwa, R. Balog, M. Bianchi, M. Leandersson, P. Hofmann and T. Balasubramanian:
    Kinks in the σ Band of Graphene Induced by Electron-Phonon Coupling
    Physical Review Letters 111, 216806 (2013)

  2. X.-G. Zhu, M. Stensgaard, L. Barreto, W. S. e Silva, S. Ulstrup, M. Michiardi, M. Bianchi, M. Dendzik and P. Hofmann:
    Three Dirac Points on the (110) Surface of the Topological Insulator Bi1−xSbx
    New Journal of Physics 15, 103011 (2013)

  3. S. Ulstrup, L. Nilsson, J. A. Miwa, R. Balog, M. Bianchi, L. Hornekær and P. Hofmann:
    Electronic Structure of Graphene on a Reconstructed Pt(100) Surface: Hydrogen Adsorption, Doping and Band Gaps
    Physical Review B 88, 125425 (2013)

  4. J. C. Johannsen, S. Ulstrup, F. Cilento, A. Crepaldi, M. Zacchigna, C. Cacho, I. C. E. Turcu, E. Springate, F. Fromm, C. Raidel, T. Seyller, F. Parmigiani, M. Grioni and P. Hofmann:
    Direct View of Hot Carrier Dynamics in Graphene
    Physical Review Letters 111, 027403 (2013)

  5. J. C. Johannsen, S. Ulstrup, M. Bianchi, R. Hatch, D. Guan, F. Mazzola, L. Hornekær, F. Fromm, C. Raidel, T. Seyller and P. Hofmann:
    Electron-Phonon Coupling in Quasi-Free-Standing Graphene
    Journal of Physics: Condensed Matter 25, 094001 (2013)

  6. L. Barreto, E. Perkins, J. C. Johannsen, S. Ulstrup, F. Fromm, C. Raidel, T. Seyller and P. Hofmann:
    Detecting the Local Transport Properties and the Dimensionality of Transport of Epitaxial Graphene by a Multi-Point Probe Approach
    Applied Physics Letters 102, 033110 (2013)

2012

  1. S. Ulstrup, T. Frederiksen and M. Brandbyge:
    Nonequilibrium Electron-Vibration Coupling and Conductance Fluctuations in a C60 Junction
    Physical Review B 86, 245417 (2012)

  2. R. Larciprete, S. Ulstrup, P. Lacovig, M. Dalmiglio, M. Bianchi, F. Mazzola, L. Hornekær, F. Orlando, A. Baraldi, P. Hofmann and S. Lizzit:
    Oxygen Switching of the Epitaxial Graphene-Metal Interaction
    ACS Nano 6, 9551 (2012),
    selected as Research Highlight, Nature Materials 12, 12 January 2013.

  3. S. Ulstrup, M. Bianchi, R. Hatch, D. Guan, A. Baraldi, D. Alfé, L. Hornekær and P. Hofmann:
    High-Temperature Behaviour of Supported Graphene: Electron-Phonon Coupling and Substrate-Induced Doping
    Physical Review B: Rapid Communications 86, 161402(R) (2012),
    Erratum: Physical Review B: Rapid Communications 93, 239901(E) (2016)

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