Prof. Dr Beata Kardynal

Group leader at Peter Grünberg Institute (PGI-9)

Contact

+49 2461/61-2164

+49 2461/61-8143

E-Mail

Address

Forschungszentrum Jülich GmbH
Wilhelm-Johnen-Straße
52428 Jülich

Peter Grünberg Institute (PGI)

News

Building 02.6 / Room 2028

Vita

2014- W2 Professor, Physics Deptartment, RWTH Aachen and Group Leader at PGI-9, Forschungszentrum Jülich, Germany.

2011- Group Leader, Peter Grünberg Semiconductor Nanoelectronics Insitute (PGI-9), Forschungszentrum Jülich, Germany.

2008-2011 Associate Professor and Group Leader, Department of Photonics, Technical University of Denmark, Lyngby, Denmark.

2001-2007 Senior Research Scientist, Quantum Information Group, Cambridge Research Centre of Toshiba Research Europe Ltd, UK.

1999-2000 Research Associate at the Department of Physics, University of Oxford, UK.

1997-1998 Research Associate at the Center for Solid State Electronics Research, Arizona State University, AZ, USA.

1996-1997 Rouse Ball Fellowship at Trinity College, University of Cambridge, UK.

1993-1996 Ph.D. in Physics at the Cavendish Laboratory, University of Cambridge, UK.

1992 Tempus Scholar at the Department of Electrical Engineering, University of Glasgow,

1985-1991 M.Sc. in Microelectronics, Technical University of Wrocław, Poland.

ORCID: 0000-0001-7425-727X
ResearcherID: K-3625-2013

Publications

L. Zhou, M. Ležaić, Y. Mokrousov, M. N. Bui, R. Rani, D. Grützmacher, B. E. Kardynał, "Polarization of photoluminescence by optically driven orbital reconstruction in magnetically ordered CrCl₃", arXiv:2502.16285
I. Stavarache, C. Palade, A. Slav, I. Dascalescu, A-M. Lepadatu, E. Matei, C. Besleaga, M. Ciurea, B. E. Kardynał, and T. Stoica, "Effect of molecular adsorption on the conductivity of selectively grown, interconnected 2D-MoS₂ atomically thin flake structures", Nanoscale Advances 2025
L. Zhou, K. Wirth, M. N Bui, R. Rani, D. Grützmacher, T. Taubner, B. E Kardynał, "Resonant Raman scattering of surface phonon polaritons mediated by excitons in WSe₂ films", ACS Photonics 11, 2079 (2024)
T. Descamps, F. Liu, T. Hangleiter, S. Kindel, B. E Kardynał, H. Bluhm, "Millikelvin confocal microscope with free-space access and high-frequency electrical control", Rev. Sci. Instrum. 95, 083706 (2024)
K. Wu, S. Kindel, T. Descamps, T. Hangleiter, J. C. Müller, R. Rodrigo, F. Merget, H. Bluhm, B. E. Kardynał, J. Witzens, "Modeling of an efficient singlet-triplet spin qubit to photon interface assisted by a photonic crystal cavity", Phys. Rev. Applied 21, 054052 (2024)
M. N. Bui, S. Rost, M. Auge, L. Zhou, C. Friedrich, S. Blügel, S. Kretschmer, A. V. Krasheninnikov, K. Watanabe, T. Taniguchi, H. C. Hofsäss, D. Grützmacher, B. E. Kardynał, "Optical properties of MoSe₂ monolayer implanted with ultra-low energy Cr ions", ACS Appl. Mater. Interfaces 15, 35321 (2023)
T. Descamps, F. Liu, S. Kindel, R. Otten, T. Hangleiter, C. Zhao, M. I. Lepsa, J. Ritzmann, A. Ludwigs, A. D. Wieck, B.E Kardynał, H. Bluhm, "Semiconductor Membranes for Electrostatic Exciton Trapping in Optically Addressable Quantum Transport Devices", Phys. Rev. Appl. 19, 044095, (2023)
A.Grundmann, Y. Beckmann, A. Ghimi, M. N. Bui, B. E. Kardynał, L. Peterer, J. M. Schneider, T. Kuemmell, G. Bacher, M. Heuken, H. Kalisch^, A. Vescan, "Impact of synthesis temperature and precursor ratio on the crystal quality of MOCVD WSe₂ monolayers", Nanotechnology 34, 205602 (2023)
D. H. Fricker, P. Atkinson, X. Jin, M. I. Lepsa, Z. Zeng, A. Kovacs, L. Kibkalo, R. E. Dunin-Borkowski, B. E. Kardynał, "Effect of surface gallium termination on the formation and emission energy of an InGaAs wetting layer during the growth of InGaAs quantum dots by droplet epitaxy", Nanotechnology 34, 145601 (2022)
M. N. Bui, S. Rost, M. Auge, J.-S. Tu, L. Zhou, I. Aguilera, S. Blügel, M. Ghorbani-Asl, A. V. Krasheninnikov, A. Hashemi, H.-P. Komsa, L. Jin, L. Kibkalo, E. N. O’Connell, Q. M. Ramasse, U. Bangert, H. C. Hofsäss, D. Grützmacher, B. E. Kardynał, "Low-energy Se ion implantation in MoS₂ monolayers", npj 2D Materials and Applications 6, 42 (2022)
A. Hamer, D. Fricker, M. Hohn, P. Atkinson, M. Lepsa, S. Linden, F. Vewinger, B. E. Kardynał, S. Stellmer, "Converting single photons from an InAs/GaAs quantum dot into the ultraviolet: preservation of second-order correlations", Optics Letters 47, 1778 (2022)
L. Yu, M. Deng, J. L. Zhang, S. Borghardt, B.Kardynal, J. Vučković, T. F. Heinz, "Site-Controlled Quantum Emitters in Monolayer MoSe₂", Nano Lett. 21, 6, 2376 (2021)
S. Borghardt, J. Sonntag, J.-S. Tu, T. Taniguchi, K. Watanabe, B. Beschoten, C. Stampfer, B. E. Kardynał, "Radially polarized light beams from spin-forbidden dark excitons and trions in monolayer WSe₂", Optical Materials Express 10(5),1273-1285 (2020)
S. Borghardt, J-S Tu, T. Taniguchi, K. Watanabe and B. E. Kardynał, "Interplay of Excitonic Complexes in p-Doped WSe₂ Monolayers", Phys. Rev. B 101, 161402(R)
M. C. Löbl, S. Scholz, I. Söllner, J. Ritzmann, T. Denneulin, A. Kovács, B. E Kardynał, A. D Wieck, A. Ludwig, R. J. Warburton, "Excitons in InGaAs quantum dots without electron wetting layer states", Nature Communications Physics, 2:93 (2019)
E.N. O'Connell, M. Hennessy, E. Courtney, Q.M. Ramasse, B. E. Kardynal, H. Hofsaess, M. Ghorbani-Asl, A. Krasheninnikov, U. Bangert, "Utilizing an Open-Source Workflow for the Analysis of Atom Dynamics in Two-Dimensional Materials", Microscopy and Microanalysis, 25, 136 (2019)
J.-S. Tu, S. Borghardt, D. Grützmacher, B. E Kardynał, "Experimental observation of a negative grey trion in an electron-rich WSe₂ monolayer", J. Phys.: Condens. Matter 31 (2019) 415701 (5pp)
B. Joecker, P. Cerfontaine, F. Haupt, L. R. Schreiber, B. E. Kardynał, H. Bluhm, "Transfer of a quantum state from a photonic qubit to a gate-defined quantum dot”, Phys. Rev. B99 (20), 205415 (2019)
F. Winkler, J. Barthel, A. H. Tavabi, S. Borghardt, B. E. Kardynał, R. E. Dunin-Borkowski, "Absolute scale quantitative off-axis electron holography at atomic resolution”, Phys. Rev. Lett. 120 (15), 156101
L. Xi, C. Boothroyds, T. Salim, S. Borghardt, Y.-M. Lam, B. E. Kardynał, "Facile in-situ Synthesis of Stable Luminescence Organic-Inorganic Lead Halide Perovskite Nanoparticles in a Polymer Matrix", J. Mater. Chem. C5, 7207-7214 (2017)
S. Borghardt, J.-S. Tu, F. Winkler,J. Schubert, W. Zander, K. Lesson, B. E. Kardynał, "Engineering of Neutral Excitons and Exciton Complexes in Transition Metal Dichalcogenide Monolayers through External Dielectric Screening", Phys. Rev. Materials 1, 054001, (2017)
C. Gritti, S. Raza, S. Kodkhodazadeh, B. Kardynał, R. Malureanu, N. A. Mortensen, A. V. Lavrinenko,"Broadband infrared absorption enhancement by electroless-deposited silver nanoparticles Nanophotonics", Nanophotonics 6, 289-297 (2017)
U. Bangert, A. Stewart, E. O’Connell, E. Courtney, Q. Ramasse, D. Kepatsoglou, H. Hofsäss, J. Amani, J.-S. Tu, B. Kardynał, "Ion-beam modification of 2-D materials - single implant atom analysis via annular dark-field electron microscopy", Ultramicroscopy, 176, 31 (2017)
F. Winkles, A. H. Tavabi, J. Barthel, M. Duchamp, E. Yucelen, S. Borghardt, B. E. Kardynał, R. E. Dunin-Borkowski, "Quantitative measurement of mean inner potential and specimen thickness from high-resolution off-axis electron holograms of ultra-thin layered WSe₂", Ultramicroscopy, 178, 38 (2017), 2016
J. Jin, T. Stoica, S. Trellenkamp, Y. Chen, N. Anttu, V. Migunov, R. Kawabata, P. J. Buenconsejo, Y.-M. Lam, F. Haas, H. Hardtdegen, D. Grützmacher, B. E. Kardynał, "Dense, regular GaAs nanowire arrays by catalyst-free vapour phase epitaxy for light harvesting", ACS Appl. Mater. Interfaces, 8, 22484-22492 (2016)
X. Lifei; D.-Y. Cho, A. Besmehn, M. Duchamp, D. Grützmacher, Y.-M. Lam, B. E. Kardynał, "Effect of Zinc Incorporation on the Performance of Red Light Emitting InP Core Nanocrystals", ACS Inorganic Chemistry, 55, 8381-8386 (2016)
T. Stoica, M. Stoica, M. Duchamp, A. T. Tiedemann, S. Mantl, D. Grützmacher, D. Buca, B. Kardynał,"Vapor transport growth of MoS₂ nucleated on SiO₂ patterns and graphene flakes", Nano Research, 9, 3504–3514 (2016)
M. Gehlmann, I. Aguilera, G. Bihlmayer, E. Młyczak, M. Eschbach, S. Döring, P. Gospodaric, S. Cramm, B. Kardynał, L. Plucinski, S. Blügel, C. M. Schneider, "Quasi 2D electronic states with high spin-polarization in centrosymmetric MoS₂bulk crystals", Scientific Reports 6, 26197 (2016)
D. Y. Cho, L. Xi, C. B. Boothroyd, B. Kardynał, Y. M. Lam, "The role of ion exchange in the passivation of In(Zn)P nanocrystals with ZnS",Scientific Reports 6, 22818 (2016)
M. R. Müller, A. Gumprich, E. Ecik,K. T. Kallis,F. Winkler,B. Kardynał, I. Petrov, U. Kunze, J. Knoch, "Visibility of two-dimensional layered materials on various substrates", J. Appl. Phys. 118, 145305 (2015)
R. Shirazi, A. Kovacs, D. D. Corell , C. Gritti, A. Thorseth, C. Dam-Hansen, P. M. Petersen, B. Kardynał, "Origin of low quantum efficiency of photoluminescence of InP/ZnS nanocrystals", Journal of Luminescence, 145, 936 (2014)
L. Xi, D.Y. Cho, M. Duchamp, C. B. Boothroyd, J. Y. Lek, A. Besmehn, R. Waser, Y. M. Lam, B. Kardynał, "Understanding the role of single molecular ZnS precursors in the synthesis of In(Zn)P/ZnS nanocrystals", ACS Appl. Mater. Interfaces 6, 18233-42 (2014)
O. Kopylow, A. Huck, S. Kadnodazadeh, K. Yvind, B. Kardynał, "Resonance energy transfer in hybrid devices in the presence of surface", J. Phys. Chem. C, 118, 16284 (2014)
A. Novitsky, A. Uskov, C. Gritti, I.E. Protsenko, B. E. Kardynal, A. Lavrinenko, "Photon absorption and photocurrent in solar cells below semiconductor bandgap due to electron photoemission from plasmonic nanoantennas", Progress in Photovoltaics, 22, 422 (2014)
R.Shirazi, O. Kopylov, A. Kovács, B. E. Kardynał, "Temperature dependent recombination dynamics in InP/ZnS colloidal nanocrystals", Appl. Phys. Lett. 101, 091910 (2012)
F. Cavalca, A. B. Laursen, B. E. Kardynał, R.E. Dunin-Borkowski, S. Dahl, J. B. Wagner, T. W. Hansen, "In situ transmission electron microscopy of light-induced photocatalytic reactions", Nanotechnology 23, 075705 (2012)
O. Svensk, S. Suihkonen, S. Sintonen, O. Kopylov, R. Shirazi, H. Lipsanen, M. Sopanen, and B. E. Kardynał, "MOCVD growth and characterization of near-surface InGaN/GaN single quantum wells for non-radiative coupling of optical excitations", Phys. Status Solidi C, 9, 1667 (2012)
J. Y. Lek, L. Xi, B. E. Kardynał, L. H. Wong, and Y. M. Lam, “Understanding the Effect of Surface Chemistry on Charge Generation and Transport in Poly (3-hexylthiophene)/CdSe Hybrid Solar Cells”, ACS Appl. Mater. Interfaces, 3, 287-292 (2011)
B. Nielsen, A. Thorseth, O. B. Jensen, P. M. Petersen, C. Dam-Hansen, M. Chi, B. Kardynal, H. Ou, “New light with diodes: light for a brighter future.” Book chapter in: Beyond optical horizons, today and tomorrow with photonics pages: 169-187, Published in 2009 by DTU Fotonik, Kgs. Lyngby ISBN: 87-92062-34-2
H. W. Li, B. E. Kardynał, D. J. P. Ellis, J. Shields, I. Farrer and D. A. Ritchie, "Quantum dot resonant tunneling diode single photon detector with aluminum oxide aperture defined tunneling area", Appl. Phys. Lett. 93, 153503 (2008)
B. E. Kardynał, Z. L. Yuan and A. J. Shields, “An avalanche photodiode-based photon number resolving detector”, Nature Photonics 2, 425 (2008)
S. S. Hees, B. E. Kardynał, A. J. Shields, I. Farrer and D. A. Ritchie, “Capture dynamics of hot electrons on quantum dots in RTDs studied by noise measurement”, New Journal of Physics, 10, 013027 (2008)
H. W. Li, B. E. Kardynał, P. See, A. J. Shields, P. Simmonds, H. E. Beere, and D. A. Ritchie, "Quantum dot resonant tunneling diode for telecommunication wavelength single photon detection”, Appl. Phys. Lett., 91, 073516 (2007)
Z. L. Yuan, B. E. Kardynał, A. W. Sharpe, and A. J. Shields, “High speed single photon detection in the near infrared”, Appl. Phys. Lett., 91, 041114 (2007)
B. Kardynał, S. S. Hees, A. J. Shields, C. Nicoll, I. Farrer, and D. A. Ritchie, “Photon number resolving detector based on a quantum dot field effect transistor”, Appl. Phys. Lett., 90, 181114 (2007)
S. S. Hees, B. E. Kardynał, P. See, A. Shields, I. Farrer, D. A. Ritchie, “Effect of InAs Dots on Noise of Quantum Dot Resonant Tunnelling Single Photon Detectors”, Appl. Phys. Lett., 89, 153510 (2006)
B. E. Kardynał, A. J. Shields, I. Farrer, K. Cooper and D. A. Ritchie, “Single electron dynamics in a quantum dot field effect transistor”, Appl. Phys. Lett., 89, 113503 (2006)
K. Takashina, R. J. Nicholas, B. E. Kardynał, N. J. Mason, D. K. Maude, J. C. Portal, “Current-driven breakdown of the quantised Hall states of a broken-gap 2D electron-hole system”, Semicond. Sci. and Techn., 21, 1758 (2006)
J. C. Blakesley, P. See, A. J. Shields, B. E. Kardynał, P. Atkinson, I. Farrer and
D. A. Ritchie, “Efficient single photon detection by quantum dot resonant tunnelling diodes” Phys. Rev. Lett., 94, (2005) 067401 (4)
R. M. Stevenson, R. J. Young, R. M. Thompson, Z. L. Yuan, B. E. Kardynał, I. Farrer, M. B. Ward, D. A. Ritchie and A. J. Shields, “Quantum dots for single photon and photon pair technology”, Quantum Computation: solid state systems (book), Chap 35, 288–297. Published in 2005 by Springer-Verlag New York Inc. ISBN: 0387263322.
N. S. Beattie, B. E. Kardynał, A. J. Shields, I. Farrer, D. A. Ritchie and M. Pepper, “Photon-induced conductance steps and in-situ modulation of disorder in mesoscopic electron systems”, Phys. Rev. B - Rapid Communications 70, 081304-1 (2004)
B. E. Kardynał, A. J. Shields, N. S. Beattie, I. Farrer, K. Cooper and D. A. Ritchie, “Low-noise photon counting with a radio-frequency quantum-dot field effect transistor”, Appl. Phys. Lett. 84, 419 (2004)
A. J. Shields, R. M. Stevenson, R. M. Thompson, M. B. Ward, Z. Yuan, B. E. Kardynał, P. See, I. Farrer, C. Lobo, K. Cooper and D. A. Ritchie, “Self-assembled quantum dots as a source of single photons and photon pairs”, Phys. Status Solidi (b), 238, 353 (2003)
K. Takashina, R. J. Nicholas, B. E. Kardynał, N. J. Mason, D. K. Maude and
J. C. Portal, “Insulating states of a broken-gap two-dimensional electron-hole system”, Phys. Rev. B 68, 235303 (2003)
Z. Yuan, B. E. Kardynał, R. M. Stevenson, A.J. Shields, C. Lobo, K. Cooper, N. S. Beattie, D. A. Ritchie and M. Pepper, “Electrically driven single photon source”, Science 295, 102 (2002)
B. E. Kardynał, A. J. Shields, M. P. O’Sullivan, N. S. Beattie, I. Farrer, D. A. Ritchie and K. Cooper, “Detection of single photons using a field effect transistor with a layer of quantum dots”, Meas. Sci. Technol. 13, 1721-1726, (2002).
A. J. Shields, R. M. Stevenson, R. M. Thompson, Z. L. Yuan and B. E. Kardynał, “Generation of single photons using semiconductor quantum dots”, Nano-Physics and Bio-Electronics: A New Odyssey (Elsevier, Amsterdam, 2002) (ISBN 978-0-444-50993-2).
K. R. Zolleis, C. J. B. Ford, B. Kardynał, D. A. Ritchie, E. H. Linfield, P. D. Rose and G. A. C. Jones, “Tunnelling spectroscopy of a two-dimensionally periodic electron system”, Phys. Rev. Lett. 89, 146803 (2002)
R. M. Stevenson, R. M. Thompson, A. J. Shields, I. Farrer, B. E. Kardynał, D. A. Ritchie and M. Pepper, “Quantum dots as a photon source for passive quantum key encoding”, Phys. Rev. B – Rapid Communications 66, 081302 (2002)
R. J. Nicholas, K. Takashina, M. Lakrimi, B. Kardynał, S. Khym, N. J. Mason, D. M. Symons, D. K. Maude, J. Portal, “Metal-insulator oscillations in a two-dimensional electron-hole system” , Phys. Rev. Lett. 85, 2364 (2000)
R. E. Dunin-Borkowski, M. R. McCartney, B. Kardynał, David J. Smith and M. R. Scheinfein, “Switching asymmetries in closely coupled magnetic nanostructure arrays”, Appl. Phys. Lett. 75, 2641 (1999)
B . Kardynał, C. H. W. Barnes, E. H. Linfield, D. A. Ritchie, J. T. Nicholls, K. M. Brown, C. J. B. Ford and M. Pepper,“Experimental determination of spectral densities in quasi-one-dimensional electron systems”, Physica B, 251, 175 (1998)
J. T. Nicholls, N. P. R. Hill, B. Kardynał, N. Turner, E. H. Linfield, D. A. Ritchie, C. H. W. Barnes, G. A. C. Jones and M. Pepper, “The investigation of 1D and 2D phenomena using double-layer electron systems”, Physica E, 3, 52 (1998)
M. Sidorov, B. Kardynał, , David J. Smith, “In-situ transmission electron microscopy observations of silicidation process for Cobalt thin films deposited on Silicon”, Microsc. Microanal. 4, 317 (1998)
M. N. Kozicki, B. Kardynał, S.-J. Yang, T. Kim, M.V. Sidorov, and David J. Smith, “Application of chemically enhanced vapor etching in the fabrication of nanostructures”, Semicond. Sci. Technol. 13, A63, (1998)
W. C. West, K. Sieradzki, B. Kardynał, and M. N. Kozicki, “Equivalent circuit modeling of the Ag/As_0.24S_0.36Ag_0.40/Ag system prepared by photodissolution of Ag”, J. Electrochem. Soc. 145, 2971 (1998)
N. Garro, L. Pugh, R. T. Phillips, V. Drouot, M. Y. Simmons, B. Kardynał and D. A. Ritchie, “Resonant Rayleigh scattering by excitonic states laterally confined in the interface roughness of GaAs/AlxGa1-xAs single quantum wells”, Phys. Rev. B, 55, 13752 (1997)
B. Kardynał, C. H. W. Barnes, E. H. Linfield, D. A. Ritchie, J. T. Nicholls, K. M. Brown, G. A. C. Jones and M. Pepper, “Magnetotunneling spectroscopy of one-dimensional wires”, Phys. Rev. B, 55, R1966 (1997)
B. Kardynał, E. H. Linfield, D. A. Ritchie, K. M. Brown, C. H. W. Barnes, G. A. C. Jones and M. Pepper, “Equilibrium tunnelling between two-dimensional quasi-one-dimensional electron gases in devices fabricated by in situ focused ion beam lithography”, Appl. Phys. Lett., 68, 826 (1996)
B. Kardynał, C. H. W. Barnes, E. H. Linfield, D. A. Ritchie, K. M. Brown,
G. A. C. Jones and M. Pepper, “Direct measurement of the band structure of a one dimensional surface superlattice”, Phys. Rev. Lett., 76, 3802 (1996)

Last Modified: 15.03.2025