English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report on the magnetic and structural properties of Ar and Mn implantedInAs epitaxial films grown on GaAs (100) by Molecular Beam Epitaxy (MBE) andthe effect of Rapid Thermal Annealing (RTA) for 30 seconds at 750C. ChannelingParticle Induced X- ray Emission (PIXE) experiments reveal that after Mnimplantation almost all Mn atoms are subsbtitutional in the In-site of the InAslattice, like in a diluted magnetic semiconductor (DMS). All of these samplesshow diamagnetic behavior. But, after RTA treatment the Mn-InAs films exhibitroom-temperature magnetism. According to PIXE measurements the Mn atoms are nolonger substitutional. When the same set of experiments were performed with Asas implantation ion all of the layers present diamagnetism without exception.This indicates that the appearance of room-temperature ferromagnetic-likebehavior in the Mn-InAs-RTA layer is not related to lattice disorder produceduring implantation, but to a Mn reaction produced after a short thermaltreatment. X-ray diffraction patterns (XRD) and Rutherford Back Scattering(RBS) measurements evidence the segregation of an oxygen deficient-MnO2 phase(nominally MnO1.94) in the Mn-InAs-RTA epitaxial layers which might be on theorigin of room temperature ferromagnetic-like response observed.

Room temperature ferromagnetic-like behavior in Mn-implanted and post-annealed InAs layers deposited by Molecular Beam Epitaxy