Transfer Effects in ODMR Spectra of ZnSe:Mn)

Kluge, J.; Donecker, J.

doi:10.1002/pssa.2210810230

Cited by 18 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The observation of the Mn2+ ground state resonance in both emission bands proves that there is an energy transfer between the different emitting centres, as previously discussed by Kluge et al [4]. Because of the new ODMR-PLE measurements, contrary to [4], we are able to distinguish two different transfer mechanisms.…”

Section: Discussionsupporting

confidence: 74%

“…ODMR spectra of Zn,_.Mn,Se have already been published by Kluge et al [4] and Abraham et al [5], who observed the Mn2+ ground state resonance in all emission bands occurring. They discussed this result in terms of energy transfer mechanisms, but due to lack of information, they were not able to give precise information about the way how the Mn2 + ground state resonance influences the observed emission bands.…”

Section: Introductionmentioning

confidence: 88%

See 1 more Smart Citation

Energy Transfer Mechanisms in Zn_1−xMn_xSe (0.005 < x < 0.017) Detected by ODMR

Zink

Krost

Nelkowski

et al. 1990

Physica Status Solidi (b)

View full text Add to dashboard Cite

-, Mn,Se (0.005 < x < 0.027) are presented. Starting from the observation of the resonance of the Mn2+ ground state in the Mn emission and in the SA emission as well, the necessary energy transfer is investigated using excitation dependent ODMR. The spectra, taken for the first time for this system show that the occurrence of the Mn2+ ground-state resonance in the Mn emission can be referred to a spin dependent transfer of optical excitation energy. In the SA emission, on the contrary, a cross relaxation between manganese and donor-acceptor pairs is responsible for the occurrence of the Mn2+ resonance in the ODMR spectra.Es werden ODMR-Untersuchungen an Zn, -,Mn,Se (0,005 < x < 0,017) vorgestellt. Ausgangspunkt dieser Arbeit ist die Beobachtung der Resonanz des Mn2+ Grundzustandes sowohl in der Mn-als auch in der SA-Lumineszenz. Zur Untersuchung des hierzu notwendigen Energietransfers werden erstmals anregungsabhangige ODMR-Messungen an diesem System durchgefuhrt. Die Spektren zeigen, daB das Auftreten der Mn2 +-Grundzustandsresonanz in der Mn-Emission auf einen spinabhangigen Transfer optischer Anregungsenergie zuriickzufiihren ist. In der SA-Emission dagegen ist eine Kreuzrelaxation zwischen Mangan und Donator-Akzeptor Paaren fur das Auftreten der Mn2+-Resonanz in den ODMR-Spektren verantwortlich.

show abstract

Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 88%

Energy Transfer Mechanisms in Zn_1−xMn_xSe (0.005 < x < 0.017) Detected by ODMR

Zink

Krost

Nelkowski

et al. 1990

Physica Status Solidi (b)

View full text Add to dashboard Cite

show abstract

“…Our ODMR investigations confirm thus relaxation of spin selection rules of the Mn 2+ intra-shell PL and allow to relate the effect to spin cross The cross-relaxation mechanism of the ODMR detection was also discussed in Refs. [6,7]. We can thus conclude that for close associates of Mn ions spin cross-relaxation processes are efficient and the PL decay time is shorter than that observed for isolated Mn ions.…”

mentioning

confidence: 78%

Spin Selection Rules in Radiative and Nonradiative Recombination Processes in Bulk Crystals and in Thin Films of II-VI Compounds

Godlewski

Ivanov

Khachapuridze

et al. 2002

phys. stat. sol. (b)

View full text Add to dashboard Cite

The origin of a fast component of Mn 2+ intra-shell photoluminescence (PL) decay is discussed. We demonstrate that efficient spin-dependent interactions between localised spins of Mn ions and spins of free carriers result in a variation of formation and decay rates of PL emissions in diluted magnetic semiconductors and affect spin selection rules for radiative recombination transitions.Introduction The influence of spin selection rules on rates of radiative and nonradiative recombination transitions is discussed, based on the results of photoluminescence (PL), PL kinetics, optically detected magnetic (ODMR) and cyclotron (ODCR) resonance investigations of ZnMnS, ZnCdSe and CdMnTe crystals, quantum well (QW) and quantum dot (QD) structures. First, the influence of spin-dependent processes on efficiency and on PL dynamics of the Mn 2+ 4 T 1 ! 6 A 1 intra-shell transition in ZnMnS (thin films and bulk samples) and in CdMnTe (bulk, QW and QD samples) is analyzed. Then, we discuss the mechanisms of the ODMR detection and Auger-type nonradiative recombination of bound excitons. Finally, we evidence influence of disorder and of magnetic interactions on rates of exciton formation and recombination in CdTe/CdMnTe and ZnCdSe/ZnSe QWs.

show abstract

“…The rel evant m echani sm s were pro p osed by Zi nk and co-workers [6] a nd by Kl uge and Donecker [7]. Zi nk et al .…”

Section: Exp Er I M Ental R Esu L T S An D Discussionmentioning

confidence: 99%

“…[6] pro p osed a cross-rel axati on pro cess of a spin Ûip b etween exci ted D AP and Mn i ons or b etween a pai r of two adj acent Mn i ons, of whi ch one i s in the gro und sta te and one i s i n the exci ted state. In turn, Kl ug e and D onecker [7] pro p osed spin-dep endent tra nsfer. In the l atter pro cess D APs and Mn i ons tra nsfer thei r excita ti on energy and the pro cess depends on thei r spin ori enta ti on.…”

Section: Exp Er I M Ental R Esu L T S An D Discussionmentioning

confidence: 99%