Origin of ultrafast component of photoluminescence decay in nanostructures doped with transition metal or rare-earth ions

M. Godlewski; S. Yatsunenko; V. Y U Ivanov; A. Khachapuridze; K. Świa̧tek; E. M. Goldys; M. R. Phillips; P. J. Klar; W. Heimbrodt

Origin of ultrafast component of photoluminescence decay in nanostructures doped with transition metal or rare-earth ions

M. Godlewski^*, S. Yatsunenko, V. Y U Ivanov, A. Khachapuridze, K. Świa̧tek, E. M. Goldys, M. R. Phillips, P. J. Klar, W. Heimbrodt

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Bulk samples, layers, quantum well, and quantum dot structures of II-Mn-VI samples all show coexistence of slow and fast components of Mn²⁺ photoluminescence decay. Thus, fast photoluminescence decay cannot be related to low dimensionality of a host material. This also means that the model of the so-called quantum confined atom is incorrect. Based on the results of time-resolved photoluminescence and optically detected magnetic resonance investigations we relate the observed lifetime decrease in Mn²⁺ intra-shell transition to spin dependent magnetic interactions between localized spins of Mn²⁺ ions and between Mn²⁺ ions and spins/magnetic moments of free carriers. The latter mechanism is enhanced in nanostructures.

Original language	English
Pages (from-to)	65-74
Number of pages	10
Journal	Acta Physica Polonica A
Volume	107
Issue number	1
Publication status	Published - Jan 2005

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title = "Origin of ultrafast component of photoluminescence decay in nanostructures doped with transition metal or rare-earth ions",

abstract = "Bulk samples, layers, quantum well, and quantum dot structures of II-Mn-VI samples all show coexistence of slow and fast components of Mn2+ photoluminescence decay. Thus, fast photoluminescence decay cannot be related to low dimensionality of a host material. This also means that the model of the so-called quantum confined atom is incorrect. Based on the results of time-resolved photoluminescence and optically detected magnetic resonance investigations we relate the observed lifetime decrease in Mn2+ intra-shell transition to spin dependent magnetic interactions between localized spins of Mn2+ ions and between Mn2+ ions and spins/magnetic moments of free carriers. The latter mechanism is enhanced in nanostructures.",

author = "M. Godlewski and S. Yatsunenko and Ivanov, {V. Y U} and A. Khachapuridze and K. {\'S}wi{\c a}tek and Goldys, {E. M.} and Phillips, {M. R.} and Klar, {P. J.} and W. Heimbrodt",

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language = "English",

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T1 - Origin of ultrafast component of photoluminescence decay in nanostructures doped with transition metal or rare-earth ions

AU - Godlewski, M.

AU - Yatsunenko, S.

AU - Ivanov, V. Y U

AU - Khachapuridze, A.

AU - Świa̧tek, K.

AU - Goldys, E. M.

AU - Phillips, M. R.

AU - Klar, P. J.

AU - Heimbrodt, W.

PY - 2005/1

Y1 - 2005/1

N2 - Bulk samples, layers, quantum well, and quantum dot structures of II-Mn-VI samples all show coexistence of slow and fast components of Mn2+ photoluminescence decay. Thus, fast photoluminescence decay cannot be related to low dimensionality of a host material. This also means that the model of the so-called quantum confined atom is incorrect. Based on the results of time-resolved photoluminescence and optically detected magnetic resonance investigations we relate the observed lifetime decrease in Mn2+ intra-shell transition to spin dependent magnetic interactions between localized spins of Mn2+ ions and between Mn2+ ions and spins/magnetic moments of free carriers. The latter mechanism is enhanced in nanostructures.

AB - Bulk samples, layers, quantum well, and quantum dot structures of II-Mn-VI samples all show coexistence of slow and fast components of Mn2+ photoluminescence decay. Thus, fast photoluminescence decay cannot be related to low dimensionality of a host material. This also means that the model of the so-called quantum confined atom is incorrect. Based on the results of time-resolved photoluminescence and optically detected magnetic resonance investigations we relate the observed lifetime decrease in Mn2+ intra-shell transition to spin dependent magnetic interactions between localized spins of Mn2+ ions and between Mn2+ ions and spins/magnetic moments of free carriers. The latter mechanism is enhanced in nanostructures.

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M3 - Article

AN - SCOPUS:14644435147

SN - 0587-4246

VL - 107

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EP - 74

JO - Acta Physica Polonica A

JF - Acta Physica Polonica A

IS - 1

ER -

Origin of ultrafast component of photoluminescence decay in nanostructures doped with transition metal or rare-earth ions

Abstract

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