Transient absorption of niobium states in photorefractive materials

L. Grigorjeva; D. Millers; V. Pankratov

doi:10.1080/00150190390239044

Transient absorption of niobium states in photorefractive materials

L. Grigorjeva^*
, D. Millers
, V. Pankratov

^*Corresponding author for this work

Laboratory of Spectroscopy, Institute of Solid State Physics

University of Latvia

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

2 Citations (Scopus)

Abstract

The transient absorption due to electron polaron states in LiNbO 3 , KNbO 3 , SrTiO 3 -Nb and glasses containing alkali niobates has been studied. The electron polarons are suggested to be Nb 4+ ions in various oxygen environments in all these crystals. It is shown that the position of the absorption band depends on Nb environment. The recharging of niobium states is suggested to be responsible for a fraction of the transient absorption in the phosphate glasses. The disordered structure of these glasses can account for wide absorption bands.

Original language	English
Pages (from-to)	75-81
Number of pages	7
Journal	Ferroelectrics
Volume	296
DOIs	https://doi.org/10.1080/00150190390239044
Publication status	Published - 1 Jun 2003

Keywords

KNbO
LiNbO
Polaron states
SrTiO -Nb
Transient absorption

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10.1080/00150190390239044

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title = "Transient absorption of niobium states in photorefractive materials",

abstract = "The transient absorption due to electron polaron states in LiNbO 3 , KNbO 3 , SrTiO 3 -Nb and glasses containing alkali niobates has been studied. The electron polarons are suggested to be Nb 4+ ions in various oxygen environments in all these crystals. It is shown that the position of the absorption band depends on Nb environment. The recharging of niobium states is suggested to be responsible for a fraction of the transient absorption in the phosphate glasses. The disordered structure of these glasses can account for wide absorption bands.",

keywords = "KNbO, LiNbO, Polaron states, SrTiO -Nb, Transient absorption",

author = "L. Grigorjeva and D. Millers and V. Pankratov",

year = "2003",

month = jun,

day = "1",

doi = "10.1080/00150190390239044",

language = "English",

volume = "296",

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TY - JOUR

T1 - Transient absorption of niobium states in photorefractive materials

AU - Grigorjeva, L.

AU - Millers, D.

AU - Pankratov, V.

PY - 2003/6/1

Y1 - 2003/6/1

N2 - The transient absorption due to electron polaron states in LiNbO 3 , KNbO 3 , SrTiO 3 -Nb and glasses containing alkali niobates has been studied. The electron polarons are suggested to be Nb 4+ ions in various oxygen environments in all these crystals. It is shown that the position of the absorption band depends on Nb environment. The recharging of niobium states is suggested to be responsible for a fraction of the transient absorption in the phosphate glasses. The disordered structure of these glasses can account for wide absorption bands.

AB - The transient absorption due to electron polaron states in LiNbO 3 , KNbO 3 , SrTiO 3 -Nb and glasses containing alkali niobates has been studied. The electron polarons are suggested to be Nb 4+ ions in various oxygen environments in all these crystals. It is shown that the position of the absorption band depends on Nb environment. The recharging of niobium states is suggested to be responsible for a fraction of the transient absorption in the phosphate glasses. The disordered structure of these glasses can account for wide absorption bands.

KW - KNbO

KW - LiNbO

KW - Polaron states

KW - SrTiO -Nb

KW - Transient absorption

UR - https://www.scopus.com/pages/publications/33646430968

U2 - 10.1080/00150190390239044

DO - 10.1080/00150190390239044

M3 - Article

AN - SCOPUS:33646430968

SN - 0015-0193

VL - 296

SP - 75

EP - 81

JO - Ferroelectrics

JF - Ferroelectrics

ER -

Transient absorption of niobium states in photorefractive materials

Abstract

Keywords

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