Shevchenko A. Quantum and structural-size effects in ferroelectric and ferromagnetic nanosystems

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0509U000709

Thesis Registration Form

0509U000709.pdf

Applicant for

Specialization

  • 01.04.07 - Фізика твердого тіла

24-11-2009

Specialized Academic Board

Д 26. 168. 02

Essay

The Dissertation is devoted to the establishing of regularities between peculiarities of interior structure construction of ferroelectic and ferromagnetic nanosystems (domain walls (DW) in ferroelectic (FE) and magnetic films, ferromagnetic clusters) both their magnetic and electrical properties. The formalism of study of magnetic properties of ferromagnetic clusters which allows on known of atomic magnetic moment and spatial atomic structure, using Monte-Carlo computing method, to predict magnetic characteristics is offered. It is shown that surfase of FE film causes a shift of DW oscillations" frequency. The possibility of quantum tunneling of the DW substructural inhomogeneouses through defect in uniaxial magnetic films is proved in the WKB approximation.

Read more

Files

aref.doc

dis.doc

Similar theses

0424U000065

Mazur Dmytro V.

X-ray absorption and magnetic circular dichroism spectra features in compounds containing oxygen and based on 4th period metals

0523U100214

Serhii V. Oliinyk

Physical basis of formation of electrical and photoelectric properties of AIIBVI crystals and electrical properties of multicomponent coatings

0522U100045

Bohdanov Yevhen Ivanovych

Effects of azimuthal asymmetry of radiation scattering in crystals and new possibilities of diffuse-dynamical diffractometry

0522U100002

Vladymyrskyi Igor A.

Thermally-induced structural phase transitions in heterogeneous systems based on magnetic and nonmagnetic nanolayers

0521U102118

Kornyushchenko Anna S.

Structure formation and physical properties of nearequilibrium metal, oxide and multicomponent condensates with nanoscale elements