Bukhanko F. Phase transformations in low-dimensional electronic and spin systems with competing order parametres

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0520U100301

Thesis Registration Form

0520U100301.pdf

Applicant for

Specialization

  • 01.04.07 - Фізика твердого тіла

23-06-2020

Specialized Academic Board

Д 64.175.03

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

Essay

The formation and destruction of the quasi-two-dimensional electronic and spin structures in several HTSC cuprate systems, manganites with a perovskite type lattice and a series of annealed films of amorphous germanium have been studied in this thesis by methods of X-ray diffraction, microwave impedance, electron paramagnetic resonance, dc resistance measurements, magnetization measurements in constant and pulsed magnetic fields, magnetic susceptibility and dielectric constant in alternating fields. The effect of external influences in the form of changes in the composition content, temperature, strength dc and ac of the external magnetic field and the measurement mode on the structural, electronic, and magnetic phase transformations in these compounds have been studied in detail. Based on the results obtained, experimental structural and magnetic phase diagrams were constructed.

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Files

Dis_Буханько.pdf

autoreferat-Aref_Буханько.pdf

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