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Magneto-optical studies of CdSe/CdMnS/CdS core/multi-shell colloidal nanoplatelets

  • Athos Petrou
  • , Thomas A. Scrace
  • , Joseph R. Murphy
  • , Peiyao Zhang
  • , Tenzin Norden
  • , Tianmu Zhang
  • , Tim Thomay
  • , Alexander N. Cartwright
  • , Savas Delikanli
  • , Mehmet Zafer Akgul
  • , Himli Volkan Demir
  • SUNY Buffalo
  • Bilkent University
  • Nnyang Technology of University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We studied the photoluminescence (PL)) from CdSe/CdMnS/CdS core/multi-shell colloidal nanoplatelets, a versatile platform to study the interplay of optical properties and nanomagnetism. The photoluminescence (PL) exhibits σ+ polarization in the applied magnetic field. Our measurement detects the presence of even a single magnetic monolayer shell. The PLL consists of a higher and a lower energy component; the latter exhibits a circular polarization peak. The time-resolved PL (trPL) shows a red shift as function of time delay. At early (later) times the trPL spectra coincide with the high (low) energy PL component. A model is proposed to interpret these results.

Original languageEnglish
Title of host publicationSpintronics IX
EditorsJean-Eric Wegrowe, Henri-Jean Drouhin, Manijeh Razeghi
PublisherSPIE
ISBN (Electronic)9781510602533
DOIs
StatePublished - 2016
EventSpintronics IX - San Diego, United States
Duration: Aug 28 2016Sep 1 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9931
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSpintronics IX
Country/TerritoryUnited States
CitySan Diego
Period08/28/1609/1/16

Keywords

  • Core/shell
  • Diluted magnetic semiconductors
  • Magneto-optical spectroscopy
  • Nanoplatelets
  • Photoluminescence
  • Sp-d exchange interaction
  • Time-esolved spectroscopy

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