Structural, magnetic, and critical behavior of CrTe1-xSbx alloys
Department of Physics, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
2 Department of Physics and Science of Advanced Materials Program, Central Michigan University, 48859, Mount Pleasant, MI, USA
3 Department of Physics, The University of Texas at El Paso (UTEP), 79968, El Paso, TX, USA
Accepted: 5 May 2021
Published online: 11 May 2021
We investigate the structural and critical properties of CrTe1−xSbx with 0.0 ≤ x ≤ 0.2. The XRD patterns revealed that Sb substitution resulted in a pure NiAs-hexagonal structure with P63/mmc (194) space group. Lattice refinement of the structure revealed little changes in the a-lattice parameter, along with a more pronounced reduction in the c-axis. The critical behavior in CrTe1−xSbx has been investigated using the magnetization isotherms near the ferromagnetic transition. The obtained critical exponents () revealed that all samples (with 0.0 ≤ x ≤ 0.2) closely follow a mean field-like behavior with ferromagnetic Curie temperature near room temperature. The results from Widom scaling relation indicate self-consistency of the acquired values. Moreover, the magnetization isotherms near the Curie temperature follow a universal scaling behavior, giving further support for the obtained critical exponents.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021