Staff Profile

Areas of expertise:  Photonic Quantum Technologies, Condensed Matter Physics, Low-dimensional Systems, III-V Semiconductors, 2D Materials, Nanostructures, van der Waals Heterostructures, Quantum Electron transport, Optoelectronics.

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Aleksey Kozikov is an experimental physicist. He works on developing technologies to produce quantum light sources optimised for secure transmission of information (quantum communication) for applications in the field of quantum cryptography. Examples of light sources include integrated deterministic single photon light emitting diodes (LEDs) and double quantum well LEDs that generate interlayer excitons and entangled photon pairs. He investigates optoelectronics properties of these devices using various optical techniques. 

More broadly, his work focuses on understanding optoelectronics and quantum electron transport properties of low-dimensional systems, including 2D materials (graphene, hexagonal boron nitride, transition metal dichalcogenides, perovskites), their van der Waals heterostructures and GaAs/AlGaAs heterostructures. The work involves nanofabrication, optical and electron transport measurements, scanning probe microscopy and instrumentation development.

PHY1024 Electromagnetism

PHY2028 Physics Laboratory

PHY3025 - PHY3039 MPhys Group Project

PHY3027 - PHY3034 BSc Project

PHY8046 - PHY8050 MPhys Theoretical Physics - Extended Project

• Alexeev EM, Mullin N, Ares P, Nevison-Andrews H, Skrypka OV, Godde T, Kozikov A, Hague L, Wang Y, Novoselov KS, Fumagalli L, Hobbs JK, Tartakovskii AI. Emergence of highly linearly polarized interlayer exciton emission in MoSe₂/WSe₂ heterobilayers with transfer-induced layer corrugation. ACS Nano 2020, 14(9), 11110–11119.
• Lyons TP, Gillard D, Molina-Sánchez A, Misra A, Withers F, Keatley PS, Kozikov A, Taniguchi T, Watanabe K, Novoselov KS, Fernández-Rossier J, Tartakovskii AI. Interplay between spin proximity effect and charge-dependent exciton dynamics in MoSe₂/CrBr₃ van der Waals heterostructures. Nature Communications 2020, 11, 6021.
• Binder J, Howarth J, Withers F, Molas MR, Taniguchi T, Watanabe K, Faugeras C, Wysmolek A, Danovich M, Fal'ko V, Geim A, Novoselov K, Potemski M, Kozikov A. Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures. Nature Communications 2019, 10, 2335.
• Rooney AP, Li Z, Zhao W, Gholinia A, Kozikov A, Auton G, Ding F, Gorbachev R, Young R, Haigh S. Anomalous twin boundaries in two dimensional materials. Nature Communications 2018, 9, 3597.
• Summerfield A, Kozikov A, Cheng TS, Davies A, Cho Y, Khlobystov AN, Mellor CJ, Foxon CT, Watanabe K, Taniguchi T, Eaves L, Novoselov K, Novikov SV, Beton PH. Moiré-Modulated Conductance of Hexagonal Boron Nitride Tunnel Barriers. Nano Letters 2018, 18, 4241-4246.
• Khanin YN, Vdovin EE, Larkin IA, Makarovsky O, Sklyueva YA, Mishchenko A, Wang YB, Kozikov A, Gorbachev RV, Novoselov KS. Observation of Spin and Valley Splitting of Landau Levels under Magnetic Tunneling in Graphene/Boron Nitride/Graphene Structures. JETP Letters 2018, 107, 238-242.
• Lerario G, Ballarini D, Dominici L, Fieramosca A, Cannavale A, Holwill M, Kozikov A, Novoselov KS, Gigli G. Bloch surface waves for MoS₂ emission coupling and polariton systems. Applied Sciences (Switzerland) 2017, 7(12), 1217.
• Velicky M, Toth P, Rakowski A, Rooney A, Kozikov A, Woods C, Mishchenko A, Fumagalli L, Yin J, Zolyomi V, Georgiou T, Haigh S, Novoselov K, Dryfe R. Exfoliation of natural van der Waals heterostructures to a single unit cell thickness. Nature Communications 2017, 8, 14410.
• Son SK, Siskins M, Mullan C, Yin J, Kravets V, Kozikov A, Ozdemir S, Holwill M, Watanabe K, Taniguchi T, Ghazaryan D, Novoselov K, Falko V, Mishchenko A. Graphene hot-electron light bulb: incandescence from hBN-encapsulated graphene in air. 2D Materials 2017, 5(1), 011006.
• Woodhead CS, Roberts J, Noori YJ, Cao Y, Bernardo-Gavito R, Tovee P, Kozikov A, Novoselov K, Young RJ. Increasing the light extraction and longevity of TMDC monolayers using liquid formed micro-lenses. 2D Materials 2017, 4(1), 015032.
• Rooney A, Kozikov A, Rudenko AN, Prestat E, Hamer M, Withers F, Cao Y, Novoselov KS, Katsnelson MI, Gorbachev R, Haigh S. Observing imperfection in atomic interfaces for van der Waals heterostructures. Nano Letters 2017, 17(9), 5222-5228.
• Binder J, Withers F, Molas MR, Faugeras C, Nogajewski K, Watanabe K, Taniguchi T, Kozikov A, Geim A, Novoselov K, Potemski M. Sub-bandgap voltage electroluminescence and magneto-oscillations in a WSe₂ light-emitting van der Waals heterostructure. Nano Letters 2017, 17(3), 1425-1430.
• Pöltl C, Kozikov A, Ensslin K, Ihn T, Jalabert RA, Reichl C, Wegscheider W, Weinmann D. Classical origin of conductance oscillations in an integrable cavity. Physical Review B 2016, 94(19), 195304.
• Schwarz S, Kozikov A, Withers F, Maguire JK, Foster AP, Dufferwiel S, Hague L, Makhonin MN, Wilson LR, Geim A, Novoselov K, Tartakovskii AI. Electrically pumped single-defect light emitters in WSe₂. 2D Materials 2016, 3(2), 025038.
• Kozikov AA, Weinmann D, Rössler C, Ihn T, Ensslin K, Reichl C, Wegscheider W. Electron backscattering in a cavity: Ballistic and coherent effects. Physical Review B 2016, 94(19), 195428.
• Woods CR, Withers F, Zhu MJ, Cao Y, Yu G, Kozikov A, Ben Shalom M, Morozov SV, van Wijk MM, Fasolino A, Katsnelson MI, Watanabe K, Taniguchi T, Geim AK, Mishchenko A, Novoselov KS. Macroscopic self-reorientation of interacting two-dimensional crystals. Nature Communications 2016, 7, 10800.
• Steinacher R, Kozikov AA, Rössler C, Reichl C, Wegscheider W, Ensslin K, Ihn T. Scanning gate imaging in confined geometries. Physical Review B 2016, 93(8), 085303.
• Khanin YN, Vdovin EE, Mishchenko A, Tu JS, Kozikov A, Gorbachev RV, Novoselov KS. Selective Spectroscopy of Tunneling Transitions between the Landau Levels in Vertical Double-Gate Graphene-Boron Nitride-Graphene Heterostructures. JETP Letters 2016, 104(5), 334-340.
• Kozikov AA, Steinacher R, Rössler C, Ihn T, Ensslin K, Reichl C, Wegscheider W. Mode specific backscattering in a quantum point contact. Nano Letters 2015, 15(12), 7994-7999.
• Steinacher R, Kozikov AA, Rössler C, Reichl C, Wegscheider W, Ihn T, Ensslin K. Scanning-gate-induced effects and spatial mapping of a cavity. New Journal of Physics 2015, 17, 043043.
• Kozikov AA, Steinacher R, Rössler C, Ihn T, Ensslin K, Reichl C, Wegscheider W. Locally induced quantum interference in scanning gate experiments. New Journal of Physics 2014, 16, 053031.
• Kozikov AA, Weinmann D, Rössler C, Ihn T, Ensslin K, Reichl C, Wegscheider W. Imaging magnetoelectric subbands in ballistic constrictions. New Journal of Physics 2013, 15, 083005.
• Kozikov AA, Rössler C, Ihn T, Ensslin K, Reichl C, Wegscheider W. Interference of electrons in backscattering through a quantum point contact. New Journal of Physics 2013, 15, 013056.
• Kozikov A, Rössler C, Ihn T. Preface to special topic: Selected contributions to the 31st International Conference on the physics of semiconductors, Zurich, 2012. Journal of Applied Physics 2013, 113, 136401.
• Ihn T, Kozikov A, Rössler C. Preface to the Proceedings of the 31st International Conference on the Physics of Semiconductors, Zurich, 2012. In: 31st International Conference on the Physics of Semiconductors, ICPS 2012. 2013, Zurich, Switzerland: AIP Conference Proceedings.
• Kozikov AA, Horsell DW, McCann E, FalKo VI. Evidence for spin memory in the electron phase coherence in graphene. Physical Review B 2012, 86(4), 045436.
• Kozikov AA, Savchenko AK, Narozhny BN, Shytov AV. Electron-electron interactions in the conductivity of graphene. Physical Review B 2010, 86, 045436.
• Tikhonenko FV, Kozikov AA, Savchenko AK, Gorbachev RV. Transition between electron localization and antilocalization in graphene. Physical Review Letters 2009, 103, 226801.