Abstract
We report the structural parameters and their variation with manganese concentration for the diluted magnetic semiconductors Hg1 − xMnxS (x ≤ 0.33) and Cd1 − xMnxS (x ≤ 0.43), as obtained by X-ray powder diffraction. Hg1 − xMnxS crystallizes in the zincblende type. Cd1 − xMnxS crystallizes in wurtzite cell type, and for the sample with x = 0.43, a difference was found between the fractional coordinates of Cd and Mn atoms. The lattice constants, cation-cation distances and bond lengths show linear dependences on concentration. For the same anion, the volumes of the unit cell versus the volumes of cations lie on the same straight line for both zineblende and wurtzite types. A pressure of 1.8 GPa applied to HgS and Hg0.95Mn0.05S induces a phase transition from the zincblende to cinnabar structure type. The consequences for the magnetic properties are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.