Reduced low temperature lifetimes of Bi3+ luminescence in magnetically ordered host lattices

Hans U. Güdel; A. M. Srivastava; M. G. Brik; W. W. Beers; W. E. Cohen

doi:10.1016/j.omx.2021.100094

Reduced low temperature lifetimes of Bi³⁺ luminescence in magnetically ordered host lattices

Hans U. Güdel
, A. M. Srivastava^*
, M. G. Brik
, W. W. Beers
, W. E. Cohen

^*Corresponding author for this work

University of Bern
LLC
Chongqing University of Posts and Telecommunications
University of Tartu
Jan Dlugosz University in Czestochowa

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

9 Citations (Scopus)

Abstract

This paper is specifically concerned with the radiative lifetime of the spin and orbitally forbidden Bi³⁺ ³P₀ →¹S₀ emission transition. In diamagnetic host lattices, the lifetime of this strongly forbidden transition is long (∼1 ms). Experimental data in the literature show a drastic lifetime shortening in lattices containing Gd³⁺ compared to the diamagnetic lattices. Here, we propose that the lifetime shortenings have their origin in an internal magnetic field, the so-called molecular field, which is created at the Bi³⁺ site by the magnetically ordered Gd³⁺ sublattice. This molecular field mixes the ³P₀ and ³P₁ states to break the selection rule forbidding the ³P₀ →¹S₀ emission transition.

Original language	English
Article number	100094
Journal	Optical Materials: X
Volume	12
DOIs	https://doi.org/10.1016/j.omx.2021.100094
Publication status	Published - Dec 2021
Externally published	Yes

Keywords

Bi luminescence
Gd compounds
Lifetime shortening
Molecular field

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10.1016/j.omx.2021.100094

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title = "Reduced low temperature lifetimes of Bi3+ luminescence in magnetically ordered host lattices",

abstract = "This paper is specifically concerned with the radiative lifetime of the spin and orbitally forbidden Bi3+ 3P0 →1S0 emission transition. In diamagnetic host lattices, the lifetime of this strongly forbidden transition is long (∼1 ms). Experimental data in the literature show a drastic lifetime shortening in lattices containing Gd3+ compared to the diamagnetic lattices. Here, we propose that the lifetime shortenings have their origin in an internal magnetic field, the so-called molecular field, which is created at the Bi3+ site by the magnetically ordered Gd3+ sublattice. This molecular field mixes the 3P0 and 3P1 states to break the selection rule forbidding the 3P0 →1S0 emission transition.",

keywords = "Bi luminescence, Gd compounds, Lifetime shortening, Molecular field",

author = "G{\"u}del, \{Hans U.\} and Srivastava, \{A. M.\} and Brik, \{M. G.\} and Beers, \{W. W.\} and Cohen, \{W. E.\}",

note = "Publisher Copyright: {\textcopyright} 2021 The Author(s)",

year = "2021",

month = dec,

doi = "10.1016/j.omx.2021.100094",

language = "English",

volume = "12",

journal = "Optical Materials: X",

issn = "2590-1478",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Reduced low temperature lifetimes of Bi3+ luminescence in magnetically ordered host lattices

AU - Güdel, Hans U.

AU - Srivastava, A. M.

AU - Brik, M. G.

AU - Beers, W. W.

AU - Cohen, W. E.

PY - 2021/12

Y1 - 2021/12

N2 - This paper is specifically concerned with the radiative lifetime of the spin and orbitally forbidden Bi3+ 3P0 →1S0 emission transition. In diamagnetic host lattices, the lifetime of this strongly forbidden transition is long (∼1 ms). Experimental data in the literature show a drastic lifetime shortening in lattices containing Gd3+ compared to the diamagnetic lattices. Here, we propose that the lifetime shortenings have their origin in an internal magnetic field, the so-called molecular field, which is created at the Bi3+ site by the magnetically ordered Gd3+ sublattice. This molecular field mixes the 3P0 and 3P1 states to break the selection rule forbidding the 3P0 →1S0 emission transition.

AB - This paper is specifically concerned with the radiative lifetime of the spin and orbitally forbidden Bi3+ 3P0 →1S0 emission transition. In diamagnetic host lattices, the lifetime of this strongly forbidden transition is long (∼1 ms). Experimental data in the literature show a drastic lifetime shortening in lattices containing Gd3+ compared to the diamagnetic lattices. Here, we propose that the lifetime shortenings have their origin in an internal magnetic field, the so-called molecular field, which is created at the Bi3+ site by the magnetically ordered Gd3+ sublattice. This molecular field mixes the 3P0 and 3P1 states to break the selection rule forbidding the 3P0 →1S0 emission transition.

KW - Bi luminescence

KW - Gd compounds

KW - Lifetime shortening

KW - Molecular field

UR - https://www.scopus.com/pages/publications/85116381014

U2 - 10.1016/j.omx.2021.100094

DO - 10.1016/j.omx.2021.100094

M3 - Article

AN - SCOPUS:85116381014

SN - 2590-1478

VL - 12

JO - Optical Materials: X

JF - Optical Materials: X

M1 - 100094

ER -

Reduced low temperature lifetimes of Bi³⁺ luminescence in magnetically ordered host lattices

Abstract

Keywords

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