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8th Edition of

International Conference on Materials Science and Engineering

March 10-12, 2025 | Rome, Italy

Materials 2023

Mobil Kazimov

Speaker at Materials Science and Engineering 2023 - Mobil Kazimov
Ministry of Science and Education Republic of Azerbaijan, Institute of Physics, Azerbaijan
Title : X-ray and morphological analysis of InAs- CrAs eutectic systems


Diluted magnetic semiconductor materials based on A3B5 compounds and 3d-metals eutectic composites, having a stable composition and properties,are promising materials for spintronic devices. One of the main features of eutectic composites obtained based on InAs, InSb, GaSb, GaSe and 3d - transition elements is the anisotropy in kinetic coefficients depending on the direction of metal needles. These composites, which combines both semiconductor and metallic properties, behave as nonhomogeneous semiconductors since metal needles are distributed parallel to the crystallization direction. The composites formed by the 3d-transition metals are considered to be diluted magnetic semiconductors. Recently, the recent discovery of superconductivity in chromium arsenide CrAs has attracted a lot interest because this material has been synthesized looking for superconductivity on the verge of the antiferromagnetic order by means of the application of external pressure. According to the results of these studies, the connection between the ferromagnetic constituents perpendicular to the crystallization axis in the CrAs junction is antiferromagnetic.

      Audience take away:

  •  InAs-CrAs systems are synthesized by the vertical Bridgman–Stockbarger method.  XRD analysis and microstructural study of InAs-CrAs composites show that CrAs metallic inclusions are uniformly distributed in the InAs matrices. By investigating of microstructure of InAs-CrAs eutectic composite by electron microscope, it has been established that the interfacial zone between the semiconductor matrix and metallic inclusions is generated.
  • In computations of effective electrical and thermal conductivity of the composite were taken into account the role of  these interfacial zones.
  • XRD, SEM and EDX analysis show that the obtained composites present two phase system, so that the observed intense peaks are related to the InAs matrix and weaknesses - to the CrAs inclusions. In the InAs-CrAs eutectic, the length of the metal needles is 30-50 µm, and the diameter is ~1.6 µm. As can be seen from the pictures, the metal rods are evenly distributed in the direction of crystallization in the matrix.
  • The two phaseness of the InAs-CrAs composite have been confirmed by the microstructure and morphology studies.


Dr. Mobil Kazimov studied Physics at Azerbaijan  University,  and graduated as MS in 2004. He then  Azerbaijan National Academy of Sciences  received her PhD degree in 2018 at the same institution.  He has published more than 40 research articles in journals. He is currently researching electric charge and heat transfer mechanisms in eutectic composites based on III-V group elements and 3D transition metals.