Department of Chemistry, Indian Institute of Technology Bhubaneswar, Odisha, India
Review Article
Spin Active Excitonic States in Mn Doped CdSe Nanolayers
Author(s): Satchidananda Rath*, O. Halder and D K Swain
Insertion of spin degrees of freedom in the semiconductor by doping of transition metal, activates a
long range magnetic ordering suitable for spin-photonics and carrier-induced magnetism applications.
The spin dominated optical properties in manganese doped cadmium selenide ultra-thin
(thickness~1.5 nm) layered nanosheets are demonstrated. Our studies reveal the presence of
magnetic ordering up to 48 K and co-existence of the multivalency Mn based local structures
corroborated to the x-ray absorption near-edge structure and Raman scattering measurements. The
room temperature based optical absorption and Photoluminescence (PL) measurements affirm the
emissions corresponding the band edge and dopant level mediated transitions. The circularly
polarized magneto-PL studies at cryogenic temperatures demonstrate the spin allowed radiative
transitions confirming th.. View More»
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