Laboratory of Topological Quantum Phenomena in Superconducting Systems

The laboratory was organized at MIPT in 2014

The laboratory was organized at MIPT in 2014 by order of the Rector (order number 04-6 of 12.02.2014) under the direction of Alexander Golubov, doctor of physical and mathematical sciences and professor at the University of Twente (Netherlands). Golubov won an open competition for grants (4th round) that was conducted as part of a program of the Government of the Russian Federation set up on 9 April 2010(№220) - official page in Russian. The laboratory is part of the MIPT Interdisciplinary Center for Basic Research

Field of scientific research
Theoretical and experimental research into the fundamental physical properties of hybrid superconducting nano-structures, including the development of a quantitative microscopic theory of the quantum processes in these systems and a comparison with results of tunnelling experiments, electro transfer, atomic and high-frequency spectroscopy. Objects of research include metallic and semiconductor nano-structures based on superconductor contacts with so-called topological insulators.

The physics of “topologically protected” quantum states is a rapidly developing field of science that is attracting much interest due to both the new fundamental effects and the potential for creating principally new types of instruments for use in spintronics and quantum computing. The latter is particularly relevantas, at the present time, the main problem found in the realization of quantum computing in advanced laboratories is the loss of quantum coherence due to interaction with the environment. A potential means of solving this problem is the realization of topologically protected quantum states (so-called majorana fermions) which are resistant to external perturbations and therefore able to maintain quantum coherence over long time periods.

The aim of the project is to obtain world-class results in studies on the topological quantum effects in contacts between superconductors and semiconductors or ferromagnetic nanowires and the subsequent publication of these results in leading Russian and international journals, and the development of new quantum mechanical devices. Implementation of the project will, as necessary, include the training of specialists in quantum nanophysics at MIPT and cooperation between Russian and foreign scientists to develop a domestic system of scientific research, education and high technology.

Alexander Golubov

Head of Topological Quantum Phenomena in Superconducting Systems Lab

Professional experience
Alexander Golubov graduated from the Department of Theoretical Physics at the Moscow State Institute of Steels and Alloys under the direction of A.A. Abrikosov in 1983. Then he worked and defended his candidate and doctoral dissertations at the Institute of Solid State Physics at the Russian Academy of Science in Chernogolovka. From 1998 to the present day, Alexander Golubov has been a professor at the Faculty of Science and Technology at the University of Twente in the Netherlands. His scientific interests include the study of condensed matter physics, in particular the transport and high-frequency properties of superconductors, proximity and Josephson effects, quantum processes in electronic and magnetic constructions. Golubov works effectively with experimenters, producing more than 350 publications in peer-reviewed journals with an h (Hirsch) index of 43.
Academic Interests
Assoc. Prof. Dr.

Vasiliy Stolyarov

Senior Research Scientist and Deputy Head

1989-1999 school 1999-2005 Student of the National research nuclear university "MEPhI" on a specialist of «superconductivity and nanotechnology» Master Diploma VCB N° 0527847, of the National research nuclear university "MEPhI". 30.03.2005. The title of the diploma work: “Contact-free determination of the current voltage law parameters for melt-textured YBCO superconductors in orthogonal magnetic field” thesis advisors: Prof. L.M. Fisher and Dr. V.S. Kruglov Diploma of European School On Nanosciencs & Nanotachnology (ESONN), Université Joseph Fourier de Grenoble Doctor of Science Diploma DKN N° 185465, of the Institute of Solid State Physics RAS, (date of PhD defense: October 2, 2012) Ph.D. thesis: « Investigation of Josephson junction with tunnel and ferromagnet interlayers» thesis advisor: Prof. V.V.Ryazanov PostDoc position at INSP UPMC Sorbonne University, and ECPCI Paris 2012-2014 Project ANR "ElectroVORTEX" advisors: D. Roditchev and T. Cren.
Professional experience
2005-2009 PhD at the ISSP RAS Laboratory of superconductivity 2009- to the present day The scientific employee of ISSP RAS Laboratory of superconductivity and Sector of Nanolithograpy. 2009- to the present day Scientific researcher of the Université Pierre et Marie Curie, Institut des Nanosciences de Paris. 2010- to the present day Senior Lecturer of Moscow State University 2012- 2014 PostDoc at ESPCI ParisTech and INSP UPMC Sorbonne University (CNRS) 2013- to the present day Scientific researcher Kazan Federal University 2014- to the present day Senior Research Scientist and Deputy Head of Laboratory of Topological Quantum Phenomena in Superconducting Systems at Moscow Institute of Physics and Technology
Academic Interests
I have extensive knowledge and expertise in the following areas: · Maintenance and improvement of cryogenic equipment · Low temperature experiments (transport measurements in high magnetic fields) · Operation of scanning electron microscopes · Operation of Scanning Tunnelling Microscopes · Operation of Atomic Force Microscopes · Operation of cryogenic measurement systems (liquid He4 Cryostats, Oxford helium optical continuous flow cryostat. Closed cycle optical cryogen free cryostat: Montana instruments, experience with He3 inserts) · Low-voltage measurements (in the nanovolt range) · Photolithography and photo-masks design, ultrasonic wire bonding, clean room experience · Thin film deposition by vacuum thermal, e-beam and magnetron evaporation methods (resistive heating) · Mechanical and electrochemical polishing of single crystal surfaces · Magneto-optical imaging elementary knowledge: · Electron beam lithography · STM/AFM equipment · RF and DC sputtering · Operation of SQUID devices, low noise measurements with SQUID voltmeter · Operation of the transmission electron microscope Special Computer skills: · Data acquisition (LabView programming) · Analysis, simulation and modeling (MatLab, Mathematica, SPIP, Origin) · Presentation (LaTeX; PowerPOINT) · AutoCAD design · SolidWorks design Research interests: The Josephson structure and research of these structures with scanning probe microscopy (STM, AFM, SNOM). Superconducting and ferromagnetic nano structures on surfaces of semiconductors and insulators. low-temperature scanning tunneling microscopy/spectroscopy. Designing of the new highly technological equipment. Fabrication of mesoscopic SN- and SF- hybrid structures via e-beam lithography and magnetron evaporation, transport measurements in magnetic field at low temperatures (in dilution fridge). Investigations of Topological Insulators. Activity: Research of spatial distribution of Local Density of State of a superconductor on SF, SN borders and topological insulators with the help STM/AFM at low temperature and ultra high vacuum.
Nagoya University

Hokkaido University

ESPCI ParisTech

Pierre and Marie Curie University (UPMC)

University of Twente