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Energy transfer by magnetic dipole-magnetic dipole interaction

Identifieur interne : 001895 ( Pascal/Curation ); précédent : 001894; suivant : 001896

Energy transfer by magnetic dipole-magnetic dipole interaction

Auteurs : P. A. Tanner [Hong Kong] ; M. Chua ; M. F. Reid

Source :

RBID : Pascal:93-0569622

Descripteurs français

English descriptors

Abstract

The magnetic dipole interaction mechanism is shown to be important in a nonradiative energy transfer process of a lanthanide ion in a centrosymmetric environment. The concentration quenching of near-ultraviolet luminescence in Cs2NaTmCl6 may be explained by this mechanism, the calculated nonradiative transfer rate from the donor Tm3+ being 1.44×105s-1. The transfer rate decreases by a factor of 103 for transfer to the 7th nearest neighbours, compared with that to the 1 st nearest. However, the angular dependence of the transfer, and the different coordination numbers for nth nearest neighbours, lead to an increased transfer rate to 3rd nearest neighbours, compared with that to the 2nd nearest set; and to the 5th nearest neighbours compared with the 4th set
pA  
A01 01  1    @0 0009-2614
A02 01      @0 CHPLBC
A03   1    @0 Chem. phys. lett.
A05       @2 209
A06       @2 5-6
A08 01  1  ENG  @1 Energy transfer by magnetic dipole-magnetic dipole interaction
A11 01  1    @1 TANNER (P. A.)
A11 02  1    @1 CHUA (M.)
A11 03  1    @1 REID (M. F.)
A14 01      @1 City polytech. Hong Kong, dep. applied sci. @2 Kowloon @3 HKG @Z 1 aut.
A20       @1 539-546
A21       @1 1993
A23 01      @0 ENG
A43 01      @1 INIST @2 13494 @5 354000034815540190
A44       @0 0000
A45       @0 39 ref.
A47 01  1    @0 93-0569622
A60       @1 P
A61       @0 A
A64   1    @0 Chemical physics letters
A66 01      @0 NLD
C01 01    ENG  @0 The magnetic dipole interaction mechanism is shown to be important in a nonradiative energy transfer process of a lanthanide ion in a centrosymmetric environment. The concentration quenching of near-ultraviolet luminescence in Cs2NaTmCl6 may be explained by this mechanism, the calculated nonradiative transfer rate from the donor Tm3+ being 1.44×105s-1. The transfer rate decreases by a factor of 103 for transfer to the 7th nearest neighbours, compared with that to the 1 st nearest. However, the angular dependence of the transfer, and the different coordination numbers for nth nearest neighbours, lead to an increased transfer rate to 3rd nearest neighbours, compared with that to the 2nd nearest set; and to the 5th nearest neighbours compared with the 4th set
C02 01  X    @0 001B11H08
C03 01  X  FRE  @0 Etude théorique @5 01
C03 01  X  ENG  @0 Theoretical study @5 01
C03 01  X  GER  @0 Theoretische Untersuchung @5 01
C03 01  X  SPA  @0 Estudio teórico @5 01
C03 02  X  FRE  @0 Transfert énergie @5 02
C03 02  X  ENG  @0 Energy transfer @5 02
C03 02  X  SPA  @0 Transferencia energía @5 02
C03 03  X  FRE  @0 Interaction dipolaire @5 03
C03 03  X  ENG  @0 Dipolar interaction @5 03
C03 03  X  SPA  @0 Interacción dipolar @5 03
C03 04  X  FRE  @0 Dipôle magnétique @5 04
C03 04  X  ENG  @0 Magnetic dipole @5 04
C03 04  X  SPA  @0 Dipolo magnético @5 04
C03 05  X  FRE  @0 Luminescence @5 05
C03 05  X  ENG  @0 Luminescence @5 05
C03 05  X  GER  @0 Lumineszenz @5 05
C03 05  X  SPA  @0 Luminiscencia @5 05
C03 06  X  FRE  @0 Composé minéral @5 12
C03 06  X  ENG  @0 Inorganic compound @5 12
C03 06  X  SPA  @0 Compuesto inorgánico @5 12
C03 07  X  FRE  @0 Césium Sodium Thulium Chlorure Mixte @2 NC @2 NA @5 17
C03 07  X  ENG  @0 Cesium Sodium Thulium Chlorides Mixed @2 NC @2 NA @5 17
C03 07  X  SPA  @0 Cesio Sodio Tulio Cloruro Mixto @2 NC @2 NA @5 17
C07 01  X  FRE  @0 Lanthanide Composé @2 NC @2 NA @5 16
C07 01  X  ENG  @0 Lanthanide Compounds @2 NC @2 NA @5 16
C07 01  X  SPA  @0 Lantánido Compuesto @2 NC @2 NA @5 16
N21       @1 265

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Pascal:93-0569622

Le document en format XML

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<sub>2</sub>
NaTmCl
<sub>6</sub>
may be explained by this mechanism, the calculated nonradiative transfer rate from the donor Tm
<sup>3+</sup>
being 1.44×10
<sup>5</sup>
s
<sup>-1</sup>
. The transfer rate decreases by a factor of 103 for transfer to the 7th nearest neighbours, compared with that to the 1 st nearest. However, the angular dependence of the transfer, and the different coordination numbers for nth nearest neighbours, lead to an increased transfer rate to 3rd nearest neighbours, compared with that to the 2nd nearest set; and to the 5th nearest neighbours compared with the 4th set</s0>
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