Year-end Sale % OFF 
Abstract
Mn-doped InAs quantum dots (QDs) embedded in InP nanowires have been studied by first-principles calculations. The Mn-Mn ferromagnetic (FM) coupling is stronger in quantum dots than in nanowires and even greater than that of GaMnAs. The stabilization of the ferromagnetic phase is a consequence of the strong $p$-$d$ exchange between the Mn $3{d}^{5}$ states and the hole bound to the magnetic impurity. We demonstrate that this interaction is dependent on the quantum-confinement effects, and this local antiferromagnetic p-d exchange will lead to a stable total FM coupling for InAs QDs embedded in InP nanowires. The magnetic active system is governed mostly by short-range interactions in such a way that the coupling for Mn ions at the same quantum dot is quite robust while that for Mn ions at neighboring dots is weaker.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
