Studies of the strongly correlated two-dimensional electron systems

Experimental discovery of the metallic state and metal-insulator transition in strongly correlated 2D electron system

Giant magnetoresistance of 2D electron system in the in-plane magnetic field

Experimental discovery and study of the reentrant transitions between the quantized Hall and insulating states in 2D electron system

Collective insulating state in a dilute 2D electron system

Thermodynamics of 2D correlated electron system

Experimental observation of the negative compressibility (negative density of states) for 2D strongly correlated electron system

Spin magnetization per electron and entropy per electron in 2DE system. Discovery of the spontaneous formation of a spin droplet state in the diluted regime

Interaction-renormalized spin susceptibility and effective mass in 2D electron system

  • V.M. Pudalov, M. Gershenson, A.Yu. Kuntsevich, N. Teneh, M. Reznikov, On the origin of the temperature dependence of spin susceptibility in correlated 2D electron system, Journal of Magnetism and Magnetic Materials, 459,  265-267 (2018).
  • V.M. Pudalov, A.Yu. Kuntsevich, M. E. Gershenson, I. S. Burmistrov, and M. Reznikov, Probing spin susceptibility of a correlated two-dimensional electron system by transport and magnetization measurements, Phys. Rev. B 98, 155109 (2018).
  • V. M. Pudalov, L. A. Morgun, A. Yu. Kuntsevich,  Probing Spontaneous Spin Magnetization and Two-Phase State in Two-Dimensional Correlated Electron System, JSNM, 2017, Volume 30, Issue 3, pp 783–787 (2017);

Thermoelectric power and energy relaxation for the 2D correlated electron system

Electron-Electron Interaction Effects in Conductivity of the 2D Electron System

Spin ordering effects in organic low-dimensional compounds

Study of the spin-ordered state in quasi-one-dimensional (TMTSF)2PF6

Character of the phase transition between antiferromagnetic, metallic, and superconducting states in quasi-1D compounds

High mobility organic field effect transistors

FeAs-based high temperature superconductors

  • M. Abdel-Hafiez, Y. Zhao, Z. Huang, C.-w. Cho, C. H. Wong, A. Hassen, M. Ohkuma, Y.-W. Fang, B.-J. Pan, Z.-A. Ren, A. Sadakov, A. Usoltsev, V. Pudalov, M. Mito, R. Lortz, C. Krellner, and W. Yang, High-pressure effects on isotropic superconductivity in the iron-free layered pnictide superconductor BaPd2As2, Phys. Rev. B 97, 134508 (2018).

  • T. E. Kuzmicheva, S. A. Kuzmichev, A. A. Kordyuk, V. M. Pudalov, Structure and Anisotropy of the Superconducting Order Parameter in Ba0.65K0.35Fe2As2 Probed by Andreev Spectroscopy, JETP Letters, 107, No. 1, 42–47 (2018)

  • A.V. Muratov, A.V. Sadakov, S.Yu. Gavrilkin, A.R. Prishchepa, G.S. Epifanova, D.A. Chareev, V.M. Pudalov, Specific heat of FeSe: Two gaps with different anisotropy in superconducting state, Physica B: Condensed Matter, 536, 785-789 (2018)

  • T. E. Kuzmicheva, S. A. Kuzmichev, A. V. Sadakov, S. Yu. Gavrilkin, A. Yu. Tsvetkov, X. Lu, H. Luo, A. N. Vasiliev, V. M. Pudalov, Xiao-Jia Chen, Mahmoud Abdel-Hafiez , Superconducting gap symmetry in BaFe1.9Ni0.1As2 superconductor , Physical Review B 97, 235106 (2018).

  • T. E. Kuzmicheva, S. A. Kuzmichev, K. S. Pervakov, V. M. Pudalov, and N. D. Zhigadlo, Evolution of superconducting gaps in Th-substituted Sm1−xThxOFeAs studied, by multiple Andreev reflection spectroscopy, Phys.Rev. B, 95, 094507 (2017)

  • T E Kuzmicheva, A V Muratov, S A Kuzmichev, A V Sadakov, Yu A Aleshchenko, V A Vlasenko, V P Martovitsky, K S Pervakov, Yu F Eltsev, V M Pudalov, On the structure of the superconducting order parameter in high-temperature Fe-based superconductors, Physics Uspekhi 60 (4) 419 - 429 (2017).

  • Mahmoud Abdel-Hafiez, Yuan-Yuan Zhang, Zi-Yu Cao, Chun-Gang Duan, G. Karapetrov, V. M. Pudalov, V.A. Vlasenko, A.V. Sadakov, D.A. Knyazev, T.A. Romanova, D.A. Chareev, O.S. Volkova, A.N. Vasiliev, and Xiao-Jia Chen, Superconducting properties of sulfur-doped iron selenide Phys. Rev. B 91, 165109 (2015).

  • M. Abdel-Hafiez, P. J. Pereira, S. A. Kuzmichev, T. E. Kuzmicheva, V. M. Pudalov, L. Harnagea, A. A. Kordyuk, A. V. Silhanek, V. V. Moshchalkov, B. Shen, Hai-Hu Wen, Xiao-Jia Chen, and A. N. Vasiliev, Lower critical field and SNS-Andreev spectroscopy of 122-arsenides: Evidence of nodeless superconducting gap, Phys. Rev. B 90, 054524 (2014).

  • T.E. Kuzmicheva, S.A. Kuzmichev, M.G. Mikheev, Ya.G. Ponomarev, S.N. Tchesnokov, V.M. Pudalov, K.S. Pervakov, A.V. Sadakov, A.S. Usoltsev, E.P. Khlybov, L.F. Kulikova, Experimental study of intrinsic multiple Andreev reflections effect in GdO(F)FeAs superconductor array junctions, Eur.Phys. Lett. 102, 67006 (2013).

  • K. S. Pervakov, V.A. Vlasenko, E. P. Khlybov, A. Zaleski, V.M. Pudalov, and Yu. F. Eltsev, Bulk magnetization and strong intrinsic pinning in Ni-doped BaFe _2As_2 single crystals, Supercond. Sci. Technol. 26 (2013) 015008.

  • V L Ginzburg and the and the development of experimental work on high-temperature superconductivity at LPI: 'iron superconductors', V.M. Pudalov, O.E. Omel'yanovskii, E.P. Khlybov, A.V. Sadakov, Yu.F. El'tsev, K.V. Mitsen, O.M. Ivanenko, K.S. Pervakov, D.R. Gizatulin, A.S. Usol'tsev, A.S. Dormidontov, S.Yu. Gavrilkin, A.Yu. Tsvetkov, Ya.G. Ponomarev, S.A. Kuzmichev, M.G. Mikheev, S.N. Chesnokov, T.E. Shanygina, S.M. Kazakov, Physics-Uspekhi, 181, â„–6, 672 (2011).
  • Magnetic and Superconducting Properties of FeAs-based High-Tc Superconductors with Gd, E.P.Khlybov, O.E.Omelyanovsky, A.Zaleski, A.Sadakov, D.R.Gizatulin, L.F.Kulikova, I.E.Kostyleva, V.M.Pudalov, Pis'ma v ZhETF 90(5), 429 (2009). [JETP Lett. 90(5), 387 (2009)].
  • Observation of Multi-Gap Superconductivity in GdO(F)FeAs by Andreev Spectroscopy, T.E.Shanygina, Ya.G.Ponomarev, S.A.Kuzmichev, M.G.Mikheev, S.N.Tchesnokov, O.E.Omel'yanovskii, A.V.Sadakov, Yu.F.Eltsev, A.S.Dormidontov, V.M.Pudalov, A.Usol'tsev, E.P.Khlybov, Pis'ma v ZhETF 93(2), 95 (2011). [JETP Lett. 93(2), 94 (2011)].
  • Observation of multiple superconducting gaps in the infrared reflectivity spectra of Ba(Fe0.9Co0.1)2As2, Yu. A. Aleshchenko, A. V. Muratov, V. M. Pudalov, E. S. Zhukova, B. P. Gorshunov, F. Kurth, K. Iida, Pis'ma v ZhETF, 94(9), 779 (2011). [JETP Lett. 94(9) 719 (2011)].
  • Bulk magnetization and strong intrinsic pinning in Ni-doped BaFe_2As_2 single crystals, K. S. Pervakov, V.A. Vlasenko, E. P. Khlybov, A. Zaleski, V.M. Pudalov, and Yu. F. Eltsev Supercond. Sci. Technol. 26 (2013) 015008.
  • Study of the Two-Gap Superconductivity in GdO(F)FeAs by ScS-Andreev Spectroscopy, T.E. Shanygina, Ya.G. Ponomarev, S.A. Kuzmichev, M.G.Mikheev, S.N. Tchesnokov, O.E. Omel'yanovsky, A.V. Sadakov, Yu.F. Eltsev, V.M. Pudalov, A.S. Usol'tsev, E.P. Khlybov, L.F. Kulikova, Journal Physics Condensed Matter (2012), in press

Methods and Experimental Techniques

Quantum Hall effect resistance standard

  • Physical Resistance Standard Based on the Quantum Hall Effect, V.M.Pudalov, S.G.Semenchinskii, I.Ya. Krasnopolin, Instrum. and Exper. Techn. 30(6), 1275 (1987).
  • Quantum Hall effect apparatus and its prospects as a resistance standard, V.M.Pudalov, S.G.Semenchinskii, I.Ya. Krasnopolin, Measurement Techniques, â„–3, 3 (1988).
  • Performance of the quantum Hall effect resistance standard at IMS, V.M.Pudalov, S.G.Semenchinskii, I.Ya. Krasnopolin, Proc. Soc. Instrum. and Control Engin. (1988), с.415. Doc.CCE/88, BIPM Sevre (France), 1988.
  • Measurements of h/e2 at IMS and IMM, Proc. Soc. Instrum. and Control Engin. (1988), с.315. Doc.CCE/88, BIPM, Sevre (France), 1988.
  • High precision measuring apparatus for QHE resistance standard, V.M. Pudalov, S.G.Semenchinskii, A.K.Yanysh, Proc. Soc. Instrum and Control Engin., (1988), p.417. Doc. CCE/88, BIPM Sevre (France), 1988
  • A physical standard of the unit of electrical resistance based on the quantum Hall effect, V.M.Pudalov, S.G.Semenchinskii, Physics-Uspekhi, 31 880–881 (1988). 10.3367/UFNr.0156.198809i.0178

Technique for measurements of the charge, chemical potential and Fermi energy variations of 2D electron layer in magnetic field

Technique for spin magnetization thermodynamic measurements of 2D electron system

High pressure technique

  • Spherical clamped high pressure cell for studies of anisotropic effects, A.V.Kornilov, V.M. Pudalov, Instruments and Experimental Technique, â„–1, с.139 (1999).
  • Miniature Clamped Hydrostatic High Pressure Cell with Large Optical Input, A.V.Kornilov, V.M.Pudalov, V.A. Sukhoparov, in: High Pressure Science & Technology, ed. By W. Trzeciakowski, (World Sci. Publ. 1996).

Techniques for measurements of the parameters of 2D electron systems

Dilatometric technique. Simultaneous measurements of the amplitude of quantum oscillations of magnetostriction and magnetization under nonlinear conditions of magnetic interaction

Quantum materials: Topological insulators, Weyl and Dirac semimetals

  • V. A. Prudkoglyad, E. B. Olshanetsky, Z. D. Kvon, V. M. Pudalov, N. N. Michailov, S. A. Dvoretsky, Two-dimensional semimetal in HgTe quantum well under hydrostatic pressure, Phys. Rev. B  98, 155437 (2018).
  • Yu. I. Latyshev, A. V. Frolov, V. A. Volkov, T. Wade, V. A. Prudkoglyad, A. P. Orlov, V. M. Pudalov, and M. Konczykowski, Manifestations of Surface States in the Longitudinal Magnetoresistance of an Array of Bi Nanowires, JETP Letters, 2018, Vol. 107, No. 3, pp. 192–195
  • A V Frolov, A P Orlov, A A Sinchenko, V A Volkov, Ya A Gerasimenko, A Yu Kuntsevich, V M Pudalov, Magneto-quantum oscillations in Bi2Se3 nanowires, Journal of Physics: Conf. Series 941 (2017)
  • A.Yu. Kuntsevich,A .A. Gabdullin, V.A. Prudkogliad, Yu.G. Selivanov, E.G. Chizhevskii, V.M. Pudalov, Low temperature Hall effect in bismuth chalcogenides thin films, Physical Review B, 94, 235401   (2016).
  • G.E. Volovik, V.M. Pudalov, Graphite on graphite,  JETP Lett. 104(12),  880 (2016).