Ferromagnetic InMnAs on InAs Prepared by Ion Implantation and Pulsed Laser Annealing
Shengqiang Zhou, Yutian Wang, Zenan Jiang, Eugen Weschke, and Manfred, Helm
TL;DR
This paper reports the successful fabrication of ferromagnetic InMnAs layers using ion implantation and pulsed laser annealing, demonstrating enhanced magnetic properties and a higher Curie temperature than previous methods.
Contribution
It introduces a novel fabrication process for InMnAs with improved magnetic properties and higher Curie temperature compared to prior techniques.
Findings
Saturated magnetization of 2.6 μ_B/Mn at 5 K
Curie temperature of 46 K, higher than previous reports
Evidence of ferromagnetism via magnetic circular dichroism
Abstract
Ferromagnetic InMnAs has been prepared by Mn ion implantation and pulsed laser annealing. The InMnAs layer reveals a saturated magnetization of 2.6 mu_B/Mn at 5 K and a perpendicular magnetic anisotropy. The Curie temperature is determined to be 46 K, which is higher than those in previous reports with similar Mn concentrations. Ferromagnetism is further evidenced by the large magnetic circular dichroism.
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