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     Nonlinear transport of 2D electrons in magnetic field

Nonlinear resistance of two dimensional electrons in crossed electric and magnetic fields [2009A, 2009B, 2008A, 2008B, 2007B, 2006A, 2005A]
Electron state with zero differential resistance [2007A]

Nonlinear properties of low dimensional systems

Directed electron transport in ballistic dot [2006B]
Microwave Rectification at boundary between 2D electron systems [2008C]

Dilute 2D electron systems 

Saturation of magnetoconductivity and complete spin polarization of 2D electrons[28,29]
Temperature dependence of the resistivity of 2D electrons in strong magnetic field[33]
Hall Coefficient of spin polarized dilute 2D electron system [31,32]
Scaling of magnetoconductivity and Quantum Phase Transition of 2D dilute electron system[30]
Microwave rectification at boundary between two dilute 2D metals on Si surface[34]
Spin polarization of strongly interacting 2D electrons: the role of disorder [35]
In-plane magnetoconductivity of Si-MOSFET's: A Quantitative Comparison between Theory and Experiment [36]

Weak localization and microwave field

frequency dispersion of weak localization correction to conductivity [18,19]
nonlinear dynamic effects in disordered low dimensional systems [7,8,9]

Quantum Hall Effect

vortex drag in the Quantum Hall Effect [23][24]
hyperfine electron-nuclear interaction and dc conductivity at QHE: new method to measure the spin of the ground state excitations [25],[26],[27]

Superconductivity

properties of spatially modulated superconductors ( S/I and S/N multilayers and superlattices): quantum oscillations of superconducting transition temperature [10,17,21]
high inhomogeneous granular superconductors: radio-frequency and microwave properties. Universal behavior in magnetic field [16,12, 13,14]

Nonlinear microwave effects in normal metals

interaction between magnetoplasma waves [1]
nonlinear cyclotron resonance [2]
threshold generation of microwave harmonics and excitation of hypersound in metals in high power microwave fields [3,4,5,6]

Other

neural network: physical realization of self-teaching [15]
 

Recent Publications:

[2009A]. Jing Qiao Zhang, Sergey Vitkalov, and A. A. Bykov,
"Nonlinear resistance of 2D electrons in crossed electric and magnetic fields" 
Phys. Rev. B 80, 045310 (2009)  
[2009B]. Sergey Vitkalov (review article)
"Nonlinear transport of 2D electrons in crossed electric and quantizing magnetic fields" 
International Journal of Modern Physics B v.23, 4727 (2009)  
[2008A].N. Romero, S. Mchugh, M. P. Sarachik,S. A. Vitkalov,A. A. Bykov
"Effect of parallel magnetic field on the Zero Differential Resistance State"
Phys. Rev. B 78, 153311 (2008)
[2008B].N.Romero Kalmanovitz, A. A. Bykov, S.A. Vitkalov, A. I. Toropov
"Warming in systems with discrete spectrum: spectral diffusion of two dimensional electrons in magnetic field"
Phys. Rev. B 78 085306 (2008)
[2008C].N.Romero Kalmanovitz, I.Hoxha, Y.Jin, S.A. Vitkalov, M.P. Sarachik, Ivan A. Larkin, T.M. Klapwijk
Two-Parameter Scaling of Microwave Rectification vs Microwave Power at the Boundary between Two-Dimensional Electron Systems"
Phys. Rev. B 77, 035415 (2008)
[2007A]. A.A. Bykov, Jing-Qiao Zhang, Sergey Vitkalov, A.K. Kalagin, A.K. Bakarov
"Zero differential resistance state of two dimensional electron systems in strong magnetic fields"
Phys. Rev. Lett.99, 116801 (2007)
[2007B]. Jing-qiaoZhang, Sergey Vitkalov, A.A. Bykov, A.K. Kalagin, A.K. Bakarov
"Effect of DC electric field on longitudinal resistance of two dimensional electrons in a magnetic field"
Phys. Rev. B 75, 081305(R) (2007)  (The paper has been  selected  by Journal Club of Condensed Matter Physics as one of the significant publications of August 2006)
[2006A]. A. A. Bykov, A.V. Goran, D.R. Islamov, A.K. Bakarov, Jing-qiao Zhang, Sergey Vitkalov
"Two Types of Microwave-Induced Magnetoresistance Oscillations in a 2D Electron Gas at Large Filling Factors"
arXiv:cond-mat/0603398
[2006B]. Jing-qiao Zhang,Sergey Vitkalov,Z.D.Kvon, J.C. Portal,A.Wieck
" Directed electron transport through ballistic quantum dot under microwave radiation"
Phys. Rev Lett. 97, 226807 (2006)
[2005A]. A. A. Bykov, Jing-qiao Zhang, Sergey Vitkalov, A. K. Kalagin, and A. K. Bakarov,
"Effect of dc and ac excitations on the longitudinal resistance of a two-dimensional electron gasin highly doped GaAs quantum wells"
Phys. Rev. B 72, 245307 (2005)

Representative Publications:

  1. S.A.Vitkalov, G.I.Leviev, and S.U.Potapenko " Cross-modulation of magnetoplasma waves in Bismuth" Fiz.Niz.Temp. v.8, N.1, p.59, 1982
  2. S.A.Vitkalov, A.P.Kopasov, and G.I.Leviev "Nonlinear cyclotron resonance in a normal magnetic field" Sov.Phys.JETP 58(6), p.1275,1983
  3. S.A.Vitkalov, V.F.Gantmakher, and G.I.Leviev " Threshold generation of microwave harmonics in a solid-state plasma and parametric excitation of hypersound in bismuth"Sov.Phys.JETP 63(4),1986,p.876
  4. S.A.Vitkalov, V.F.Gantmakher, and G.I.Leviev "Magnetoacoustoelectronic instabilities in bismuth in constant and high-frequency electric fields", Sov.Phys.JETP 63(6),1986,p.1310
  5. S.A.Vitkalov, V.F.Gantmakher, and G.I.Leviev "Threshold generation of harmonics in the microwave range in bismuth" JETP Lett.39,p.660,1984
  6. S.A.Vitkalov, V.F.Gantmakher, and G.I.Leviev Sol.State Commun. 54,1985, p.1091
  7. S.A.Vitkalov, G.M.Gusev,Z.D.Kvon, and G.I.Leviev " Suppression of localization effects by microwave radiation in a 2D electron gas" JETP Lett.43,1986,p.185
  8. S.A.Vitkalov, G.M.Gusev,Z.D.Kvon, G.I.Leviev,and V.I.Falko " Dynamic effect of a microwave field on weak localization " Sov.Phys.JETP 67,1988, p.1080
  9. S.A.Vitkalov, G.M.Gusev,Z.D.Kvon, G.I.Leviev, and V.I.Falko " Dynamic effect of a microwave electromagnetic field on localization in a 2D electron gas" 19th Int.Conf. THE PHYS.OF SEMICOND. ed.W.Zawadzky,1988, p.507
  10. S.A.Vitkalov,F.A.Pudonin,E.G.Sokol, and I.M.Suslov " Anomalous behavior of the superconducting transition temperature of an Nb/SiO superlattices " JETP Lett.49,1989,p.188
  11. S.A.Vitkalov,and E.I.Zavaritskaya " Microwave resonance of 2D holes in Ge bicrystals " 20-th Int. Conf.Phys. Semicond. Ed. by E.M.Anastassakis and J.D.Joannopoulos, World Scientific,p.2279,1990
  12. S.A.Vitkalov, M.M.Rzaev, and D.N.Tokarchuk " Frequency dependence of magnetic-field response of granular superconductors" JETP Lett., 51, 1990, p.156
  13. S.A.Vitkalov, M.M.Rzaev, and D.N.Tokarchuk "Magnetic field fluctuations of microwave absorption and low frequency diamagnetic screening in polycrystal superconductor films YBaCuO" Superconductivity: phys., chem.,tech. v.3,N.6,p.973,1990
  14. S.A.Vitkalov, E.G.Sokol, and D.N.Tokarchuk "Temperature and sample size dependencies of the magnetic field response of YBaCuO films " Superconductivity: phys.,chem.,tech, v.4,N12,p.2318,1991.
  15. S.A.Vitkalov, I.M.Suslov "Physical realization of a self-teaching neuron network " JETP Letters v.56, N1, p.63, 1992.
  16. S.A.Vitkalov " Screening properties of inhomogeneous superconducting YBaCuO films in magnetic field" JETP 76(4),p.640,1993
  17. S.A.Vitkalov, H.G.Sokol, F.A.Pudonin "Quantum Oscillations of Superconducting Transition Temperature of Nb films with Two Plane Defects " Superconductivity:phys., chem., tech. July, p.973,1994
  18. S.A.Vitkalov "High frequency conductivity of two dimensional electrons under weak localization conditions" JETP 82(5), p.994, 1996.
  19. S.A.Vitkalov "Microwave conductivity of 2D electron gas in AlGaAs/GaAs heterojunctions in weak localization regime " Proceedings of LT21 Conference ;S5,p.2505,1996
  20. L.E.Svistov, S.A.Vitkalov "High frequency electromagnetic action on dc magnetic moment of granular YBaCuO superconductor in magnetic field" Proceeding of LT21 Conference , S3, p.1267, 1996
  21. F.A.Pudonin, H.G.Sokol, S.A.Vitkalov "Quantum oscillations of Superconducting Transition Temperature and Dielectric Function of Niobium Films with Two Plane Defects" Proceeding of LT21 Conference, S2,p.1023,1996
  22. S.A.Vitkalov, C.R.Bowers, and J.Simmons " Quenching of nuclear spin diffusion in strained GaAs/AlGaAs multiple quantum wells " APS meeting,1998
  23. S.A.Vitkalov " Vortex drag in Quantum Hall Effect " Pis'ma v ZheTF 67, p.276-280, 1998, ( JETP Lett. 1998). http://xxx.lanl.gov/abs/cond-mat/9803152
  24. S.A.Vitkalov " Vortex model of the Negative Drag in Quantum Hall Effect "Proceedings of the Physical Phenomena at High Magnetic Field -III, 1998, Editors: Z. Fisk, L. Gorkov, R. Schrieffer
  25. S.A.Vitkalov, C.R.Bowers, J.A.Simmons, J.L.Reno " Effect of the nuclear hyperfine field on the 2D electron conductivity in the quantum Hall regime " Pis'ma v ZheTF 99, p.58-63, 1999 ; (JETP Lett. 1999)
  26. S.A.Vitkalov, C.R.Bowers, J.A.Simmons, J.L.Reno " Nuclear spin-orientation dependence of magnetoconductance: a new method for measuring the spin of charged excitations in the quantum Hall effect " J. Phys.: Condens. Matter 11, L407-L414, 1999.
  27. S.A.Vitkalov, C.R.Bowers, J.A.Simmons, J.L.Reno " ESR detection of optical dynamical nuclear polarization in GaAS/AlGaAS quantum wells at unity filling factor in the quantum Hall effect. " Phys. Rev. B v61,p.5447-5451,2000
  28. S. A. Vitkalov , H. Zheng, K. M. Mertes, M. P.Sarachik, and T. M. Klapwijk, "Small-angle Shubnikov-de Haas Oscillations in Silicon MOSFET's," Phys. Rev. Lett. 85, 2164, 2000
  29. S. A. Vitkalov, M. P. Sarachik, T. M. Klapwijk, "Spin Polarization of Two-Dimensional Electrons Determined from Shubnikov-de Haas Oscillations as a Function of Angle", Phys.Rev. B,  64, 073101, (2001); http://xxx.lanl.gov/abs/cond-mat/0101196
  30. S. A. Vitkalov, Hairong Zheng, K. M. Mertes, M. P. Sarachik, T. M. Klapwijk, "Scaling of the magnetoconductivity ofsilicon MOSFET's: Evidence for a quantum phase transition in two dimensions" Phys. Rev. Lett.  87, 086401, (2001); http://xxx.lanl.gov/abs/cond-mat/0009454  
  31. S. A. Vitkalov, Hairong Zheng, K. M. Mertes, M. P. Sarachik and T. M. Klapwijk, "Hall Coefficient of a Dilute 2D Electron System in Parallel Magnetic Field." Phys. Rev. B,  63, 193304, (2001); http://xxx.lanl.gov/abs/cond-mat/0008456
  32. S. A. Vitkalov "Hall Coefficient and electron-electron interaction of 2D electrons in Si-MOSFET's; Phys. Rev. B (November 15 ), (2001); http://xxx.lanl.gov/abs/cond-mat/0102415 
  33. K. M. Mertes, Hairong Zheng, S. A.Vitkalov, M. P. Sarachik, and T. M. Klapwijk, "Temperature-Dependence of the Resistivity of a Dilute 2D Electron System in High Parallel Magnetic Field," Phys.Rev. B, Rapid Communication, 63, R41101, (2000); http://xxx.lanl.gov/abs/cond-mat/0006379
  34. I. Hoxha, S. A. Vitkalov, N. A. Zimbovskaya, M. P. Sarachik and T. M. Klapwijk, "Microwave Rectification at the Boundary between Two-Dimensional Electron Systems." (in preparation) http://xxx.lanl.gov/abs/cond-mat/0110331
  35. I.S. A. Vitkalov, M. P. Sarachik and T. M. Klapwijk, "Spin polarization of strongly interacting 2D electrons: the role of disorder" (to be published Phys. Rev. B Rapid Comm.); http://xxx.lanl.gov/abs/cond-mat/0202381
  36. I.S. S. A. Vitkalov, K. James, B. N. Narozhny, M. P. Sarachik, T. M. Klapwijk, "In-plane Magnetoconductivity of Si-MOSFET's: A Quantitative Comparison between Theory and Experiment (submitted to Phys. Rev. Lett.); http://xxx.lanl.gov/abs/cond-mat/0202381
  37. M. P. Sarachik, S.A. Vitkalov "Does $m^*g^*$ diverge at a finite electron density in silicon inversion layers? Conference proceedings: "Quantum Transport and Quantum Coherence" Localisation 2002 Sophia University, Tokyo, August 16-19, 2002, published in a supplement of the Journal of Physical Society of Japan http://arxiv.org/abs/cond-mat/0209113
  38. Yeekin Tsui, S. A. Vitkalov, M. P. Sarachik, T. M. Klapwijk  "Conductivity of Silicon Inversion Layers: comparison with and without in-plane magnetic field" arXiv:cond-mat/0406566 [ps, pdf, other]; Phys. Rev. B 71, 113308 (2005)
  39. Yeekin Tsui, S. A. Vitkalov, M. P. Sarachik, T. M. Klapwijk  " Magnetoconductivity of Insulating Silicon Inversion Layers"  arXiv:cond-mat/0312218 [ps, pdf, other] ; Phys. Rev. B 71, 033312 (2005)