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Усов Николай Александрович


Usov Nickolai Alexandrovich

The University of your primary employment:

Name of the University

Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation

Russian Academy of Sciences (IZMIRAN)

Country:  Russian Federation

City: Troitsk, Moscow

Name of the Chair/Lab: Ouantum and Cryogenic Magnetometry Lab 

Research area.

Amorphous and nano-crystalline magnetic materials. Magnetic microwires, nanowires. Giant magneto-impedance effect. Magnetic sensors. Magnetic nanoparticle assemblies.

Academic Degrees and Titles.

Doctor of Sciences, Title

“Micromagnetics of small ferromagnetic particles, nanostructures and amorphous wires” 

Academic Position

1) Senior Scientific Researcher (IZMIRAN)

2) Professor (Obninsk Branch of National Research Nuclear University MEPhi)

Area of Expertise.

Solid State Theory. Theoretical magnetism. Micromagnetics. Theoretical modelling and numerical simulation. Amorphous and nano-crystalline magnetic materials. Magnetic microwires, nanowires. Giant magneto-impedance effect. Magnetic sensors. Magnetic nanoparticle assemblies.

Major Scientific Advances.

a) The numerical simulation and perturbation theory methods have been developed to calculate non-uniform micromagnetic distributions in various ferromagnetic materials (Doctor of Science Dissertation, Moscow State University, 2001).

b)For the first time a theory of the vortex magnetization state in a magnetically soft ferromagnetic nanoparticle has been given. (J. Magn. Magn. Mater. 1993).

c) The theory of the Giant Magneto-Impedance effect in amorphous ferromagnetic microwires has been presented for the first time. (J. Magn. Magn. Mater. 1998).

d) The quasi-static and low frequency hysteresis loops of assembly of superparamagnetic nanoparticles with uniaxial anisotropy have been calculated for the first time. (J. Appl. Phys. 2009, 2010).

e) The dynamics of ferromagnetic nanoparticles in a viscous fluid have been described for the first time. (J. Appl. Phys. 2012).

f) A theory of the Giant Magneto-Impedance effect in amorphous ferromagnetic microwires with a weak helical anisotropy has been done. (J. Appl. Phys. 2013).

Research Projects and Contracts.

a) INTAS project No.97 – 31311 (1999 - 2002)

«Micromagnetics of interacting and non-interacting magnetic particles on nanometre scale»

b) The Program of the Presidium of the Russian Academy of Sciences «Basic Nanomaterial and Nanotechnology Research» (2009 - 2010)

c) Visiting professor at the University of Basque Country (San Sebastian, Spain, 2005-2006)

d) Iker Basque visiting professor at the University of Basque Country (Bilbao, Spain, 2011) 

Referee, Reviewer.

Several manuscripts every year for J. Appl. Phys.. Appl. Phys. Lett., J. Magn. Magn. Mater, etc.

Scientific Recognition

H-index – 18;

Number of articles published in peer review periodicals referenced in the «Web of Science» database - 101

Number of citations of the articles published in periodicals referenced in the «Web of Science» database – 1150

 

Publications.

Most important recent publications:

a) Low frequency hysteresis loops of superparamagnetic nanoparticles with uniaxial anisotropy J. Appl. Phys. 107 (2010) p. 123909

б) Dynamics of magnetic nanoparticle in a viscous liquid: application to magnetic nanoparticle hyperthermia. J. Appl. Phys. 112 (2012) p. 023901

в) Magnetic nanoparticle motion in external magnetic field. J Magn. Magn. Mater. 385 (2015)

p. 339

Patents, Intellectual Property.

a) Giant magnetic impedance magnetometer. Useful model patent. Russian Federation № 130409

 b) A method to form biocompatible polymeric structure. Patent of Russian Federation № 2512950


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