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Free keywords:
Calculations, Chromium, Chromium compounds, Crystal atomic structure, Crystallography, Magnetic moments, Magnetic structure, Ab initio calculations, Collinear spin structures, Hexagonal crystal structure, High temperature, Single-crystalline, Structural and magnetic properties, Te compounds, Tilt angle, Tellurium compounds
Abstract:
Although stoichiometric CrTe is difficult to synthesize because of the appearance of Cr vacancies, ferromagnetic Cr1-x Te compounds have attracted increasing attention. This work investigates single crystalline (Cr0.9 B0.1)Te with the Cr vacancies filled by B to stabilize the hexagonal crystal structure and shift the Fermi energy. The structural and magnetic properties have been characterized by experimental measurements and ab initio calculations. A collinear spin structure with an easy axis along c is observed at high temperature, whereas the magnetic moments localized at the Cr atoms gradually tilt away from the c-axis below 140 K. A maximum tilt angle of 30 ° is observed at a temperature of 2 K. © 2020 Author(s).
