Dr.  Oleksandr  V.  Dobrovolskiy                                             

      
          Postdoctoral researcher, Physikalisches Institut, J.W. Goethe-Universität Frankfurt   
          Senjor research scientist, School of Low Temperature Physics, V.N. Karazin KhNU   

          Tel.      +49 (0)69 798 47263                                               
          Fax:     +49 (0)69 798 47291   
          E-mail: Dobrovolskiy at Physik.uni-frankfurt.de   
          Mail:     Physikalisches Institut Goethe-Universität,       
                      Max-von-Laue-Str. 1, D-60438 Frankfurt/M

        
           
Curriculum Vitae (pdf)       List of publications (pdf)       
     
                                              
                                                                                                                 
PhD thesis: Guided vortex motion and the Hall-effect in superconductors with periodic pinning potential
B.I. Verkin Insitute for Low Temperature Physics and Engineering of the NAS of Ukraine, Kharkiv, 2009
Supervisor: Professor Dr. Valerij A. Shklovskij
Education: 2000-2005, Physics Department, V.N. Karazin Kharkiv National University
Master degree summa cum laude in Low Temperature Physics
Current
research
interests: 


Vortex dynamics in superconductors
Abrikosov fluxonics nano-devices

Thin film growth and characterization

Nanofabrication techniques

Nanostructured films and surfaces

Noise-induced (stochastic) phenomena

Magneto-transport and microwave measurements

Grants and
Awards:
Rector V.S. Bakirov Research Fellowship for young scientists (Ukraine, 2007)
Professor I.E. Tarapov Research Grant (Ukraine, 2008)
DAAD Scholarship Award for young scientists (Germany, 2009)
Beilstein Scholarship within the research collaboration NanoBiC  (Germany, 2010)
European Grant for attending the Marie Curie advanced cryocourse (Slovakia, 2010)
Monographies:  V.A. Shklovskij and O.V. Dobrovolskiy
Pinning and Vortex Dynamics in Superconductors
Series of lectures for students of the Physics Department 
(in Russian)
V.N.
Karazin Kharkiv National University Press, Kharkiv, 112p, (2007), pdf

V.A. Shklovskij and O.V. Dobrovolskiy 
Microwave Absorption by Vortices in Superconductors with a Washboard Pinning Potential
In Superconductors - Materials, Properties and Applications ed. by A. Gabovich (InTech, Rijeka, 2012)
ISBN 979-953-307-798-6
pdf (open access)

Major publications:

            
Abrikosov fluxonics in washboard nanolandscapes
            O. V. Dobrovolskiy, 
http://arxiv.org/abs/1510.06872, pdf

            Alternating current-driven microwave loss modulation in a fluxonic metamaterial
            
O. V. Dobrovolskiy, M. Huth, and V. A. Shklovskij, Appl. Phys. Lett. 107, 162603–1-5 (2015), journal version

            Tunable magnetism on the lateral mesoscale by post-processing of Co/Pt heterostructures
            O. V. Dobrovolskiy, M. Kompaniiets, F. Porrati, R. Sachser, Ch. Gspan, H. Plank, and M. Huth,
            Beilstein J. Nanotechnol. 6, 1082–1090 (2015)
, journal version

            Dual cut-off direct current-tunable microwave low-pass filter on superconducting Nb microstrips with asymmetric nanogrooves
            O. V. Dobrovolskiy and M. Huth, Appl. Phys. Lett. 106, 142601–1-5 (2015)
journal version
           
            4He sample probe for combined microwave and dc electrical transport measurements
            O. V. Dobrovolskiy, J. Franke, and M. Huth, Meas. Sci. Technol. 26, 035502–1-9 (2015)
journal version

            Long-range superconducting proximity effect in polycrystalline Co nanowires
           
M. Kompaniiets, O. V. Dobrovolskiy, C. Neetzel, F. Porrati, J. Brötz, W. Ensinger, and M. Huth,
            Appl. Phys. Lett.  104
052603–1-4 (2014)journal version

            Magnetization reversal assisted by half antivortex states in nanostructured circular Co disks
           
A. Lara, O. V. Dobrovolskiy, J. L. Prieto, M. Huth, and F. G. Aliev, Appl. Phys. Lett.  104052603–1-4 (2014)journal version

           
Electrical transport and pinning properties of Nb thin films patterned with focused ion beam-milled washboard nanostructures
           
O. V. Dobrovolskiy, E. Begun, M. Huth, and V. A. Shklovskij, New J. Phys. 14, 113027–1-27 (2012), pdf (open access)

            Crossover from dirty to clean superconducting limit in dc magnetron-sputtered thin Nb films
           
O. V. Dobrovolskiy and M. Huth, Thin Solid Films 520,  5985–5990 (2012), pdf    journal version

            Frequency-dependent ratchet effect in superconducting films with a tilted washboard pinning potential
            
V. A. Shklovskij and O. V. Dobrovolskiy, Phys. Rev. B 84, 054515-1-12 (2011), pdf   journal version

            Anisotropic magnetoresistive response in thin Nb films decorated by an array of Co stripes
            
O. V. Dobrovolskiy, M. Huth, and V. A. Shklovskij, Supercond. Sci. Technol. 23, 125014-1-5 (2010), pdf   journal version
           
            AC-driven vortices and the Hall effect in a superconductor with a tilted washboard pinning potential
            
V. A. Shklovskij and O. V. Dobrovolskiy, Phys. Rev. B 78, 104526-1-12 (2008), pdf   journal version

            Influence of point-like disorder on the guiding of vortices and the Hall efftct in a washboard planar pinning potential
            V. A. Shklovskij and O. V. Dobrovolskiy, Phys. Rev. B 74, 104511-1-14 (2006), pdf   journal version


Oleksandr V. Dobrovolskiy, personal webpage, last update: November  01, 2015