Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Surface study of Tb0,16Ho0,84Fe2,00-xCox intermetallics

A.S. Strechen, Yu..A. Kurnosov, A.Yu.. Karpenkov, A.I. Ivanova, A.I. Sinkevich, E.M. Semenova, Yu..G. Pastushenkov

Tver State University

DOI: 10.26456/pcascnn/2022.14.243

Original article

Abstract: The results of the study of the crystal structure, magnetic properties, as well as of micro-and domain structure of the surface of a series of compounds Tb0,16Ho0,84Fe2,00-xCox (x = 0,1; 0,2; 0,3; 0,4) are presented. It is shown that an increase in the relative content of cobalt leads to a decrease in the crystal lattice parameter a from 7,310 Å at x = 0,1 to 7,304Å at x = 0,4. At the same time, the Curie temperature increases accordingly from 581 to 614 K. It has been experimentally established that, as x increases, the specific saturation magnetization decreases linearly with increasing temperature. It has been found that the mechanical impact on the surface of sections during polishing can lead to the appearance of a regular microrelief. The results of studying the domain structure of the surface are presented. It is shown that the configuration and linear dimensions of the domains change as a result of the impact on the surface of the samples.

Keywords: intermetallics, Laves phase, magnetic properties, surface, microstructure, domain structure

  • Artem S. Strechen – 2st year graduate student, Condensed Matter Physic Department, Tver State University
  • Yuriy A. Kurnosov – 2st year graduate student, Condensed Matter Physic Department, Tver State University
  • Aleksey Yu.. Karpenkov – Ph. D., Docent, Condensed Matter Physics Department, Tver State University
  • Alexandra I. Ivanova – Ph. D., Docent, Applied Physic Department, Tver State University
  • Artem I. Sinkevich – 2st year postgraduate student, Condensed Matter Physic Department, Tver State University
  • Elena M. Semenova – Ph. D., Docent, Condensed Matter Physic Department, Tver State University
  • Yuriy G. Pastushenkov – Dr. Sc., Full Professor, Condensed Matter Physic Department, Tver State University

Reference:

Strechen, A.S. Surface study of Tb0,16Ho0,84Fe2,00-xCox intermetallics / A.S. Strechen, Yu..A. Kurnosov, A.Yu.. Karpenkov, A.I. Ivanova, A.I. Sinkevich, E.M. Semenova, Yu..G. Pastushenkov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2022. — I. 14. — P. 243-253. DOI: 10.26456/pcascnn/2022.14.243. (In Russian).

Full article (in Russian): download PDF file

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