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Regular version of the site

Condensed-matter physics

Priority areas of development: engineering science
2017

In this project we performed research in the field of condensed-matter physics. The goal was to advance our understanding of the physics of such systems and phenomena as well as creating the basis for further use of the results obtained in leading scientific and educational centers worldwide, including potential applications.

We have used the following methods in our research. In theoretical studies: methods of quantum field theory in application to condensed-matter problems, including diagrammatics, functional integrals, numerical methods, such as direct diagonalization and Monte-Caro simulations, nonlinear sigma-model, renormalization group methods, semiclassical equations in the theory of superconductivity. In experimental research: low-temperature spectroscopy electronic spin resonance for quantum magnetic materials, resonance inelastic light scattering, magnetofluorescence methods; use of modern nanotechnology for fabrication of hybrid nanostructures, low and untralow-temperature experiments (down to 20 mK) for transport and magneto-tramsport experoments.

Within this project we carried out the planned research and obtained results, which are described in detail in the report. Publications based on the results of the project  have been prepared and published in leading scientific journals. In particular, we obtained results that advanced theoretical and experimental investigations of such materials and phenomena as

  • electronic and spin transport in granular systems,
  • strongly disordered conductors,
  • superfluidity in fermionic systems with long-range interaction,
  • helical electornic edge modes,
  • desription of metastable states in atomic systems,
  • quantum computing in solid-state systems,
  • topological order in superfluids,
  • topological phenomena in low-dimensional el systems,
  • magnetic impurities in two-dimensional topological insulators,
  • spin transport in mesoscopic electronic structures,
  • Cooper-pair splitting in ballistic ferromagnetic SQUIDs,
  • two-dimensional chaotic flows,
  • two-dimensional electronic systems,
  • magnetic resonance in a chain magnetic material K2CuSO4Cl2 with uniform Dzyaloshinskii interaction and in a quasi-two-dimensional antiferromagnet on a triangular lattice  RbFeMo(O4)2 with a chaotic modulation of atomic bonds,
  • non-equilibrium electronic and spin phenomena in  hybrid nanostructures.

The results are desribed in the project report. 21 publications in leading scientific journals have appeared in the course of the project; the results have also been presented at conferences, symposia and seminars in Russia and abroad.

Publications:


Burmistrov I., Tikhonov K., Gornyi I., Mirlin A. Entanglement entropy and particle number cumulants of disordered fermions // Annals of Physics. 2017. Vol. 383. P. 140-156. doi
Ludwig T., Burmistrov I., Gefen Y., Shnirman A. Strong nonequilibrium effects in spin-torque systems // Physical Review B. 2017. No. 95. P. 075425-1 -075425-12 . doi
Burmistrov I. Two-instanton approximation to the Coulomb blockade problem // Soviet Journal of Low Temperature Physics (English Translation of Fizika Nizkikh Temperatur). 2017. Vol. 43. No. 1. P. 115-121. doi
Vankov A., Kukushkin I. Intersubband magnetoplasmon as a detector of the spin polarization in two-dimensional electron system // Письма в Журнал экспериментальной и теоретической физики. 2017. Vol. 105. No. 6. P. 380-383. doi
Vankov A., Kukushkin I., Кулик Л. В., Кайсин Б. Д. Intersubband Magnetoplasmon as a Detector of the Spin Polarization in Two-Dimensional Electron Systems // Письма в Журнал экспериментальной и теоретической физики. 2017. Vol. 105. No. 6. P. 380-383. doi
P. A. Ioselevich, Ostrovsky P. M., Ya. V. Fominov, M. V. F. Cooper pair splitting in diffusive magnetic SQUIDs // Physical Review B. 2017. Vol. 95. No. 9. P. 094508-1-094508-6. doi
A.S.Ioselevich, Sivak V. Cotunneling and polaronic effect in granular systems // Physical Review B. 2017. Vol. 95. P. 214205-1-214205-18. doi
Kolokolov I. Evolution of magnetic field fluctuations in two-dimensional chaotic flow // Journal of Physics A: Mathematical and Theoretical. 2017. Vol. 50. No. 155501. P. 1-12. doi
Kolokolov I. Spatial statistics of magnetic field in two-dimensional chaotic flow in the resistive growth stage // Physics Letters, Section A: General, Atomic and Solid State Physics. 2017. Vol. 381. P. 1036-1040. doi
Колоколов И. В., Лебедев В. В. Крупномасштабное течение в двумерной турбулентности при статической накачке // Письма в Журнал экспериментальной и теоретической физики. 2017. Т. 106. № 10. C. 633-636. doi
Krasnikova Y., Glazkov V., Soldatov T. A. Experimental study of antiferromagnetic resonance in noncollinear antiferromagnetic Mn3Al2Ge3O12 // Журнал экспериментальной и теоретической физики. 2017. Vol. 125. No. 3. P. 476-479. doi
Красникова Ю. В., Глазков В. Н., Soldatov T., Солдатов Т. Экспериментальное исследование антиферромагнитного резонанса в неколлинеарном антиферромагнетике Mn3Al2Ge3O12 // Журнал экспериментальной и теоретической физики. 2017. Т. 152. № 3. C. 476-479. doi
Backens S., Shnirman A., Makhlin Y., Gefen Y., Mooij J., Schoen G. Emulating Majorana fermions and their braiding by Ising spin chains // Physical Review B. 2017. Vol. 96. No. 19. P. 195402-1-195402-10. doi
Makhlin Y. Entanglement spectrum in superfluid phases of 3He // Письма в Журнал экспериментальной и теоретической физики. 2017. Vol. 106. No. 11. P. 739-742. doi
Sergeicheva E., Sosin S., Prozorova L., Gu G., Zaliznyak I. Unusual magnetic excitations in the weakly ordered spin- 12 chain antiferromagnet Sr2CuO3: Possible evidence for Goldstone magnon coupled with the amplitude mode // Physical Review B. 2017. Vol. 95. No. 2. P. 020411-1-020411-5. doi
Sonner M., Tikhonov K., Mirlin A. Multifractality of wave functions on a Cayley tree: From root to leaves // Physical Review B. 2017. Vol. 96. P. 214204-1-214204-15. doi
Shtyk A., Feigelman M. Collective modes and ultrasonic attenuation in a pseudogapped superconductor // Physical Review B. 2017. Vol. 96. P. 064523-1-064523-8. doi
Ivanov D., Feigelman M. Low-energy dynamical response of an Anderson insulator with local attraction // Physical Review B. 2017. Vol. 95. P. 045147-. doi
Stroganov P. L., Ya.V. Fominov Сooper pair splitting in ballistic ferromagnetic SQUIDs // Physical Review B. 2017. Vol. 96. No. 17. P. 174508-1-174508-13. doi
Makarov A. A., Yudson V. Magnetic-field control of subradiance states of a system of two atoms // Письма в Журнал экспериментальной и теоретической физики. 2017. Vol. 105. No. 3. P. 205-209. doi
Fedorov A. K., Yudson V., Shlyapnikov G. V. P-wave superfluidity of atomic lattice fermions // Physical Review A. 2017. Vol. 95. No. 4. P. 043615(1)-043615(11). doi
Burmistrov I. Transport in a two-dimensional disordered electron liquid with isospin degrees of freedom, in: Strongly Correlated Electrons in Two Dimensions.: Pan Stanford Publishing, 2017. С. 65-116.