Terahertz resonant emission by optically excited infrared-active shear phonons in KY(MoO4)2

Autor: Kamenskyi, D., Vasin, K., Prodan, L., Kutko, K., Khrustalyov, V., Pavlov, S. G., Hübers, H. -W.

Generation of the monochromatic electromagnetic radiation in the terahertz (THz) range of frequencies for many decades remanes a chellenging task. Here we demonstrate the emission of monochromatic sub-THz radiation by coherent optical phonons in diel

Externí odkaz: http://arxiv.org/abs/2410.13603

Magneto-electric properties and low-energy excitations of multiferroic FeCr2S4

Autor: Strinic, A., Reschke, S., Vasin, K. V., Schmidt, M., Loidl, A., Tsurkan, V., Eremin, M. V., Deisenhofer, J.

Publikováno v: Phys. Rev. B 102, 134409 (2020)

We report on the low-frequency optical excitations in the multiferroic ground state of polycrystalline FeCr2S4 in the frequency range 0.3-3~THz and their changes upon applying external magnetic fields up to 7~T. In the ground state below the orbital-

Externí odkaz: http://arxiv.org/abs/2009.09890

Terahertz Resonant Emission by Optically Excited Infrared-Active Shear Phonons in KY(MoO 4 ) 2 .

Autor: Kamenskyi D; Institute of Optical Sensor Systems, German Aerospace Center (DLR), Rutherfordstr. 2, 12489, Berlin, Germany.; Department of Physics, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.; Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, Universitätsstr. 1, 86159, Augsburg, Germany., Vasin K; Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, Universitätsstr. 1, 86159, Augsburg, Germany., Prodan L; Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, Universitätsstr. 1, 86159, Augsburg, Germany., Kutko K; B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, Nauky Avenue 47, Kharkiv, 61103, Ukraine., Khrustalyov V; B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, Nauky Avenue 47, Kharkiv, 61103, Ukraine., Pavlov SG; Institute of Optical Sensor Systems, German Aerospace Center (DLR), Rutherfordstr. 2, 12489, Berlin, Germany., Hübers HW; Institute of Optical Sensor Systems, German Aerospace Center (DLR), Rutherfordstr. 2, 12489, Berlin, Germany.; Department of Physics, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.

Publikováno v: Advanced science (Weinheim, Baden-Wurttemberg, Germany) [Adv Sci (Weinh)] 2024 Nov 13, pp. e2407028. Date of Electronic Publication: 2024 Nov 13.

Fine Structure of Fe²⁺ Multiplets, Magnetic Anisotropy, and Interrelation between Magnetic and Electric Structures in Fe2Mo3O8.

Autor: Eremin, M. V., Vasin, K. V., Nurmukhametov, A. R.

Publikováno v: Journal of Experimental & Theoretical Physics; Oct2023, Vol. 137 Issue 4, p506-519, 14p

Interaction between Doubly Degenerate Centers through the Strain Field in a Weak-Anisotropy Cubic Lattice.

Autor: Vasin, K. V.¹ (AUTHOR) KVVasin@stud.kpfu.ru, Eremin, M. V.¹ (AUTHOR) Mikhail.Eremin@kpfu.ru

Publikováno v: Journal of Experimental & Theoretical Physics. Dec2019, Vol. 129 Issue 6, p1029-1035. 7p.