Publications

SELECTED SCIENTIFIC PUBLICATIONS

  1. Purely spatial diffusion of H atoms in solid normal- and para-hydrogen films,
    S. Sheludiakov, D. M. Lee, V. V. Khmelenko, Yu. A. Dmitriev, J. Järvinen, J. Ahokas, and S. Vasiliev, Phys. Rev. B 105, 144102 (2022). article
  2. A large octupole magnetic trap for research with atomic hydrogen
    J. Ahokas, A. Semakin, J. Järvinen, O. Hanski, A. Laptiyenko, V. Dvornichenko, K. Salonen, Z. Burkley, P. Crivelli, A. Golovizin, V. Nesvizhevsky, F. Nez, P. Yzombard, E. Widmann, and S. Vasiliev
    Rev. Sci. Instrum. 93, 023201 (2022). article preprint
  3. Nuclear-Polarized Phases of H Atoms Embedded in Solid Molecular Hydrogen Films, S. Sheludiakov, D. M. Lee, V. V. Khmelenko, J. Ahokas, J. Järvinen, and S. Vasiliev, J. Low Temp. Phys.  (2021). https://doi.org/10.1007/s10909-021-02627-2
  4. Purely Spatial Quantum Diffusion of H Atoms in Solid H2 at Temperatures below 1 K
    S. Sheludiakov, D. M. Lee, V. V. Khmelenko, J. Järvinen, J. Ahokas, and S. Vasiliev
    Phys. Rev. Lett., 126, 195301 (2021) pdf
  5. A magneto-gravitational trap for studies of gravitational quantum states
    V. V. Nesvizhevsky, F. Nez, S. A. Vasiliev, E. Widmann, P. Crivelli, S. Reynaud, and A. Yu. Voronin
    Eur. Phys. J. C 80, 520 (2020) pdf
  6. Experimental cell with a Fabry-Perot resonator tuned in situ for magnetic resonance studies of matrix-isolated radicals at temperatures below 1 K,
    S. Sheludiakov, D. M. Lee, V. V. Khmelenko, J. Järvinen, J. Ahokas, and S. Vasiliev
    Rev. Sci. Instrum. 91, 063901 (2020) pdf
  7. Dynamic nuclear polarization and ESR hole burning in As doped silicon
    J. Järvinen, D. Zvezdov, J. Ahokas, S. Sheludyakov, L. Lehtonen, S. Vasiliev, , L. Vlasenko, Y. Ishikawa, Y. Fujii
    Phys. Chem. Chem. Phys. 22, 10227 (2020) pdf
  8. Studies of nuclear polarization of hydrogen atoms embedded in solid molecular hydrogen and hydrogen deuteride films
    S. Sheludiakov, D. M. Lee, V. V. Khmelenko, J. Ahokas, J. Järvinen, and S. Vasiliev
    Low Temp. Phys. 46, 139 (2020) pdf
  9. Formation of Nuclear-Polarized Phases of H Atoms Embedded in Solid H2 Films
    S. Sheludiakov, P. T. McColgan, D. M. Lee, V. V. Khmelenko, J. Järvinen, J. Ahokas, and S. Vasiliev
    Phys. Rev. Lett., 122, 225301 (2019) pdf
  10. Evidence for melting of HD and D2 clusters in solid neon below 1 K
    S. Sheludiakov, J. Ahokas, J. Järvinen, L. Lehtonen, S. Vasiliev, Yu. A. Dmitriev, D. M. Lee, and V. V. Khmelenko
    Phys. Rev B, 99, 174514 (2019) pdf
  11. Gravitational and matter-wave spectroscopy of atomic hydrogen at ultra-low energies
    S. Vasiliev, J. Ahokas, J. Järvinen, V. Nesvizhevsky, A. Voronin, F. Nez and S. Reynaud
    Hyperfine Interact, 240, 14 (2019) pdf
  12. Quantum reflection of antihydrogen from a liquid helium bulk
    P.-P. Crépin, E. A. Kupriyanova, R. Guérout, A. Lambrecht, V. V. Nesvizhevsky, S. Reynaud, S. Vasiliev, A. Yu. Voronin
    Hyperfine Interact, 240, 58 (2019) pdf
  13. Spin Waves in Quantum Gases — The Quality Factor of the Identical Spin Rotation Effect
    L. Lehtonen, O. Vainio, J. Ahokas, J. Järvinen, S. Sheludyakov, K.-A. Suominen, S. Vasiliev, V. V. Khmelenko and D. M. Lee
    Phys. Scr., 93, 094002 (2018) pdf
  14. Identical spin rotation effect and electron spin waves in quantum gas of atomic hydrogen
    L. Lehtonen, O. Vainio, J. Ahokas, J. Järvinen, S. Novotny, S. Sheludyakov, K.-A. Suominen, S. Vasiliev, V. V. Khmelenko and D. M. Lee
    NJP, 20, 055010 (2018) pdf
  15. Electron spin resonance study of atomic hydrogen stabilized in solid neon below 1K
    Sergey Sheludiakov, Janne Ahokas, Jarno Järvinen, Sergey Vasiliev, Yuri Dmitriev, David Lee, Vladimir Khmelenko
    Phys. Rev B, 97, 104108 (2018) pdf
  16. Dynamic Polarization and Relaxation of 75 As Nuclei in Silicon at High Magnetic Field and Low Temperature
    J. Järvinen, J. Ahokas, S. Sheludyakov, D. Zvezdov, O. Vainio, L. Lehtonen, L. Vlasenko, S. Vasiliev
    Appl. Magn. Reson., 48, 473 (2017), arXiv:1611.04384 pdf
  17. ESR study of atomic hydrogen and tritium in solid T2 and T2 :H2 matrices below 1 K
    S. Sheludiakov, J. Ahokas, J. Järvinen, L. Lehtonen, O. Vainio, S. Vasiliev, V. V. Khmelenko, and D. M. Lee
    Phys. Chem. Chem. Phys., 19, 2834 (2017), arXiv 1609.06564 pdf
  18. Tunneling chemical exchange reaction D + HD -> D2 + H in solid HD at temperatures below 1K
    S. Sheludiakov, J. Ahokas, J. Järvinen, D. Zvezdov, L. Lehtonen, O. Vainio, S. Vasiliev, V. V. Khmelenko, and D. M. Lee
    Phys. Chem. Chem. Phys., 18, 29600 (2016) pdf
  19. Electron Spin Resonance Study of Electrons Trapped in Solid Molecular Hydrogen Films
    S. Sheludiakov, J. Ahokas, J. Järvinen, O. Vainio, L. Lehtonen, D. Zvezdov, V. V. Khmelenko, D. M. Lee, S. Vasiliev
    J. Low. Temp. Phys., 183, 120 (2016) pdf
  20. Microscopic control of 29-Si nuclear spins near phosphorus donors in silicon
    J. Järvinen, D. Zvezdov, J. Ahokas, S. Sheludyakov, O. Vainio, L. Lehtonen, S. Vasiliev, Y. Fujii, S. Mitsudo, T. Mizusaki, M. Gwak, SangGap Lee, Soonchil Lee, L. Vlasenko
    Phys. Rev. B, 92, 121202 (2015) pdf
  21. Bose-Einstein Condensation of Magnons in Atomic Hydrogen Gas
    O. Vainio, J. Ahokas, J. Järvinen, L. Lehtonen, S. Novotny, S. Sheludiakov, K.-A. Suominen, S. Vasiliev, D. Zvezdov, V. V. Khmelenko, D. M. Lee
    Phys. Rev. Lett., 114, 125304 (2015) pdf
  22. Dynamic Nuclear Polarization of High-Density Atomic Hydrogen in Solid Mixtures of Molecular Hydrogen Isotopes
    S. Sheludiakov, J. Ahokas, J. Järvinen, D. Zvezdov, O. Vainio, L. Lehtonen, S. Vasiliev, S. Mao, V. V. Khmelenko, D. M. Lee
    Phys. Rev. Lett., 113, 265303 (2014) pdf
  23. Efficient dynamic nuclear polarization of phosphorus in silicon in strong magnetic fields and at low temperatures
    J. Järvinen, J. Ahokas, S. Sheludyakov, O. Vainio, L. Lehtonen, S. Vasiliev, D. Zvezdov, Y. Fujii, S. Mitsudo, T. Mizusaki, M. Gwak, SangGap Lee, Soonchil Lee, L. Vlasenko
    Phys. Rev. B 90, 214401 (2014) pdf
  24. Experimental cell for molecular beam deposition and magnetic resonance studies of matrix isolated radicals at temperatures below 1 K
    S. Sheludiakov, J. Ahokas, O. Vainio, J. Järvinen, D. Zvezdov, S. Vasiliev, V. V. Khmelenko, S. Mao, D. M. Lee
    Rev. Sci. Instrum. 85, 053902 (2014) pdf
  25. Guiding and Trapping of Electron Spin Waves in Atomic Hydrogen Gas
    O. Vainio, J. Ahokas, S. Novotny, S. Sheludyakov, D. Zvezdov, K.-A. Suominen, and S. Vasiliev
    Phys. Rev. Lett. 108, 185304 (2012) pdf
  26. Matrix Isolation of H Atoms at Low Temperatures
    V. V. Khmelenko, D. M. Lee and S. Vasiliev
    J. Low Temp. Phys., 162, 105-120 (2011) pdf
  27. Magnetic resonance line shifts in the quantum gas of atomic hydrogen
    J. Ahokas, O. Vainio, S. Novotny, J. Järvinen, and S. Vasiliev
    Phys. Scr. T140, 014012 (2010) pdf
  28. Magnetic resonance study of H atoms in thin films of H2 at temperatures below 1 K
    J. Ahokas, O. Vainio, S. Novotny, J. Järvinen, V. V. Khmelenko, D. M. Lee, and S. Vasiliev
    Phys. Rev. B 81, 104516 (2010) pdf
  29. Stabilization of high density atomic hydrogen in H2 films at below 0.5 K
    J. Ahokas, O. Vainio, J. Järvinen, V. V. Khmelenko, D. M. Lee, and S. Vasiliev
    Phys. Rev. B 79, 220505 (2009) pdf
  30. Clock Shift in High Field Magnetic Resonance of Atomic Hydrogen
    J. Ahokas , J. Järvinen , G. V. Shlyapnikov , and S. Vasiliev
    Phys. Rev. Lett. 101, 263003 (2008) pdf
  31. Magnetic Resonance Studies of Cold Atomic Hydrogen Gas
    J. Ahokas, J. Järvinen, and S. Vasiliev
    J. Low Temp. Phys. 150, 577 (2008)
  32. Thermal Compression of Atomic Hydrogen on Helium Surface
    J. Järvinen, J. Ahokas, and S. Vasiliev
    J. Low Temp. Phys. 147, 579 (2007).
  33. Cold Collision Frequency Shift in Two-Dimensional Atomic Hydrogen
    J. Ahokas, J. Järvinen, and S. Vasiliev
    Phys. Rev. Lett 98 , 043004 (2007) pdf
  34. Exotic Behavior of Hydrogen Atoms in Solid H2 at Temperatures below 1 K
    J. Ahokas, J. Järvinen, V. V. Khmelenko, D. M. Lee, and S. Vasiliev
    Phys. Rev. Lett. 97, 095301 (2006) pdf
  35. Three-body recombination in two-dimensional atomic hydrogen gas
    J. Järvinen, J. Ahokas, S. Jaakkola, and S. Vasilyev
    Phys. Rev. A 72, 052713 (2005).
  36. Thermal compression of two-dimensional atomic hydrogen gas
    S. Vasilyev, J. Järvinen, A.I. Safonov, and S. Jaakkola
    Phys. Rev. A 69, 023610 (2004) pdf
  37. Cryogenic 2 mm wave electron spin resonance spectrometer with applications to atomic hydrogen gas below 100 mK
    S. Vasilyev, J. Järvinen, E. Tjukanoff, A. Kharitonov, and S. Jaakkola
    Rev. Sci. Instrum. 75, 94 (2004) pdf
  38. Electron-Spin-Resonance Instability in Two-Dimensional Atomic Hydrogen Gas
    S. Vasilyev, J. Järvinen, A. Safonov, A. Kharitonov, I. Lukashevich, and S. Jaakkola
    Phys. Rev. Lett. 89, 153002 (2002) pdf
  39. Adsorption and Two-Body Recombination of Atomic Hydrogen on 3He-4He Mixture Films
    Safonov, A.I., Vasilyev, S.A., Kharitonov, A.A., Boldarev, S.T., Lukashevich, I.I. and Jaakkola, S.
    Phys. Rev. Lett. 86, 3356 (2001) pdf
  40. Observation of Quasicondensate in Two-Dimensional Atomic Hydrogen
    Safonov, A.I., Vasilyev, S.A., Yasnikov, I.S., Lukashevich, I.I. and Jaakkola, S.
    Phys. Rev. Lett. 81, 4545 (1998) pdf

PhD theses:

Sergei Sheludiakov, Magnetic Resonance Study of Atomic Hydrogen Stabilized in Matrices of Hydrogen Isotopes below 1K, Ph.D thesis, University of Turku (2017) pdf

Otto Vainio, Spin-Dynamics in Cold Gases of 87Rb and Atomic Hydrogen, Ph.D thesis, University of Turku (2012) pdf

Janne Ahokas, Magnetic Resonance Experiments with Atomic Hydrogen, Ph.D. thesis, University of Turku (2010) pdf

Jarno Järvinen, Studies of Two-Dimensional Atomic Hydrogen Gas with Electron-Spin Resonance, University of Turku (2006) pdf

 

Recent MSci diploma:

Ville Virtanen, Quartz Microbalance and its Application in Low Temperature Physics, University of Turku, 2012 pdf

Sergey Sheludyakov, Thermometry below 1K, University of Turku, 2011 pdf

Denis Zvezdov, Studies of Spin Kinetics in Atomic Hydrogen Gas, Kazan Federal University, 2011 (in russian pdf)

Janne Ahokas, Magnetic Resonance in Atomic Hydrogen, University of Turku, 2005 pdf