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  1. No Access

    Article

    Specific Features of a High-Frequency Electron Paramagnetic Resonance Spectrometer with Frequency Modulation

    A high-frequency electron paramagnetic resonance spectrometer with frequency modulation has been developed. Advantages of the applied method for recording spectra of paramagnetic centers with giant fine-struct...

    R. A. Babunts, A. S. Gurin, Yu. A. Uspenskaya, H. R. Asatryan… in Technical Physics Letters (2020)

  2. No Access

    Article

    The Gd–Ce Cross-Relaxation Effects in ODMR via Ce3+ Emission in Garnet Crystals

    Electron paramagnetic resonance (EPR) in the ground state of Gd3+ ions in (LuGd)3 Al5O12 single crystals has been found by monitoring the Ce3+ photoluminescence intensity under circularly polarized excitation in ...

    N. G. Romanov, D. O. Tolmachev, A. S. Gurin… in Applied Magnetic Resonance (2016)

  3. No Access

    Article

    An optical quantum magnetometer with submicron resolution based on the level anticrossing phenomenon

    An optical quantum magnetometer with submicron spatial resolution is proposed that is based on the phenomenon of optical response in a solid-state spin system under conditions of spin sublevel anticrossing wit...

    A. N. Anisimov, D. O. Tolmachev, R. A. Babunts… in Technical Physics Letters (2016)

  4. No Access

    Article

    ODMR evidence of the electron cascade in multiple asymmetrical (CdMn)Te quantum wells

    Exchange-coupled complexes consisting of Mn ions and holes have been revealed by optically detected magnetic resonance in the narrowest quantum wells of asymmetrical multiple-quantum-well structures (CdMn)Te/(...

    A. S. Gurin, D. O. Tolmachev, N. G. Romanov, B. R. Namozov, P. G. Baranov… in JETP Letters (2015)

  5. No Access

    Article

    Point defects in silicon carbide as a promising basis for spectroscopy of single defects with controllable quantum states at room temperature

    The spin and optical properties of silicon vacancy defects in silicon carbide of the hexagonal 6H polytype have been investigated using photoluminescence, electron paramagnetic resonance, and X-band optically det...

    V. A. Soltamov, D. O. Tolmachev, I. V. Il’in, G. V. Astakhov… in Physics of the Solid State (2015)

  6. No Access

    Article

    Manifestation of spin-dependent recombination in afterglow of zinc oxide crystals

    Long-lasting afterglow of ZnO single crystals grown by hydrothermal method has been studied using high-frequency (94 GHz) optically detected magnetic resonance (ODMR) at helium temperatures. Giant (up to 30%) ...

    A. S. Gurin, N. G. Romanov, D. O. Tolmachev, P. G. Baranov in Physics of the Solid State (2015)

  7. No Access

    Article

    A noncavity scheme of optical detection of high-frequency magnetic and cyclotron resonances in semiconductors and nanostructures

    To perform optical detection of high-frequency magnetic resonance (ODMR) and cyclotron resonance (ODCR) with a spatial resolution, we have proposed a noncavity scheme of an ODMR-ODCR spectrometer using a quasi...

    R. A. Babunts, A. G. Badalyan, N. G. Romanov, A. S. Gurin… in Technical Physics Letters (2012)

  8. No Access

    Article

    Optically detected magnetic resonance of Mn-related excitations in (Cd,Mn)Te quantum wells

    Optically detected magnetic resonance (ODMR) was applied to reveal the exchange interaction effects between Mn2+ ions and confined holes in (Cd,Mn)Te quantum wells with 2D hole gas. Two anisotropic ODMR signals w...

    D. O. Tolmachev, A. S. Gurin, N. G. Romanov, A. G. Badalyan, R. A. Babunts… in JETP Letters (2012)

  9. No Access

    Article

    Temperature-scanned magnetic resonance and the evidence of two-way transfer of a nitrogen nuclear spin hyperfine interaction in coupled NV-N pairs in diamond

    New method for the detection of magnetic resonance signals versus temperature is developed on the basis of the temperature dependence of the spin Hamiltonian parameters of the paramagnetic system under investi...

    R. A. Babunts, A. A. Soltamova, D. O. Tolmachev, V. A. Soltamov… in JETP Letters (2012)

  10. No Access

    Article

    Identification of nitrogen vacancies in an AlN single crystal: EPR and thermoluminescence investigations

    The electronic structure of nitrogen vacancies in specially undoped aluminum nitride single crystals has been determined and the depth of the donor level of these vacancies in the band gap has been found to be...

    V. A. Soltamov, I. V. Ilyin, A. A. Soltamova, D. O. Tolmachev… in Physics of the Solid State (2011)

  11. No Access

    Article

    Identification of recombination centers in wide-band-gap crystals and related nanostructures from spin-dependent tunneling afterglow

    The centers involved in the spin-dependent recombination in KCl: AgCl insulator-semiconductor wide-band-gap crystal structures, bulk ZnO crystals, and quantum dots based on ZnO nanocrystals have been identifie...

    R. A. Babunts, N. G. Romanov, D. O. Tolmachev, A. G. Badalyan… in Physics of the Solid State (2009)

  12. No Access

    Article

    Evidence for Mn2+ fine structure in CdMnSe/ZnSe quantum dots caused by their low dimensionality

    The axial fine structure with strong positive zero-field splitting for Mn2+ ions in CdMnSe/ZnSe quantum dots caused by their low dimensionality was revealed. Magnetic resonance was measured as a variation of phot...

    P. G. Baranov, N. G. Romanov, D. O. Tolmachev, R. A. Babunts, B. R. Namozov… in JETP Letters (2008)

  13. No Access

    Article

    Giant change in the intensity of tunneling afterglow in excited ZnO quantum dots induced by the spin reorientation of electron-hole pairs in static and microwave magnetic fields

    Long afterglow has been detected in light-excited ZnO quantum dots caused by the spin-dependent tunneling recombination of electron and hole centers. A giant increase in the intensity of afterglow upon a chang...

    P. G. Baranov, N. G. Romanov, D. O. Tolmachev, C. de Mello Donegá… in JETP Letters (2006)

  14. No Access

    Article

    Detection of directed electron-hole recombination energy transfer from an ionic crystal matrix to self-assembled nanocrystals

    It is found that the energy released in the spin-dependent tunneling recombination of electron-hole pairs and self-trapped excitons in an ionic crystal matrix is directionally transferred to low-dimensional se...

    P. G. Baranov, N. G. Romanov, A. G. Badalyan… in Journal of Experimental and Theoretical Ph… (2005)