Fertman O. Electronic structure and magnetic properties of metallic systems based on d- and f-elements

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0499U002081

Thesis Registration Form

0499U002081.pdf

Applicant for

Specialization

  • 01.04.11 - Магнетизм

16-11-1999

Specialized Academic Board

К 64.175.03

Essay

Objects: ferromagnetic metallic systems Gd-Y, Fe-B and Nd-Fe-B. Goals: determination of the role of characteristic features of electronic and atomic structures in the forming of magnetic states in metals. Methods: magnetometry, optical ellipsometry, ultraacoustics and dilatometry. New results: three magnetic phase transitions of order-to-order type have been revealed below the Curie points in Gd100-xYx (5.5ЈxЈ12) alloys. The special electronic structure of the amorphous Fe83B17 eutectic alloy is revealed, which causes low sensitivity of its magnetic characteristics to the influence of mechanical stresses, temperature and magnetic field. The magnetoelastic contribution is revealed into the spin reorientation phase transition characteristics of the Nd-Fe-B based manyphase system.

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