Luminescence of Mn4+ in the orthorhombic perovskite, LaGaO3

A. M. Srivastava; S. J. Camardello; M. G. Brik

doi:10.1016/j.jlumin.2016.11.015

Luminescence of Mn⁴⁺ in the orthorhombic perovskite, LaGaO₃

A. M. Srivastava^*
, S. J. Camardello
, M. G. Brik

^*Šī darba korespondējošais autors

General Electric
Chongqing University of Posts and Telecommunications
University of Tartu
Jan Dlugosz University in Czestochowa

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

30 Atsauces (Scopus)

Kopsavilkums

The optical properties of Mn⁴⁺ (3d³) in the orthorhombic perovskite, LaGaO₃ are investigated. The Mn⁴⁺ energy levels are calculated using the exchange charge model of crystal-field theory. The calculated Mn⁴⁺ energy levels are in good agreement with the experimental spectroscopic data. The results of our calculations yield the crystal-field splitting and Racah parameters of Dq=1926 cm⁻¹, B=780 cm⁻¹ and C=2878 cm⁻¹, with C/B=3.7. The emission spectrum is assigned on the basis of the zero phonon line corresponding to the ²E_g→⁴A_2g transition and its vibrational sidebands. A comparative study of the variation in the crystal-field splitting and the Mn^{4+ 2}E_g energy level position in materials with the perovskite structure is also presented.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	437-441
Lapu skaits	5
Žurnāls	Journal of Luminescence
Sējums	183
DOIs	https://doi.org/10.1016/j.jlumin.2016.11.015
Publikācijas statuss	Publicēts - 1 marts 2017
Ārēji publicēts	Jā

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10.1016/j.jlumin.2016.11.015

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title = "Luminescence of Mn4+ in the orthorhombic perovskite, LaGaO3",

abstract = "The optical properties of Mn4+ (3d3) in the orthorhombic perovskite, LaGaO3 are investigated. The Mn4+ energy levels are calculated using the exchange charge model of crystal-field theory. The calculated Mn4+ energy levels are in good agreement with the experimental spectroscopic data. The results of our calculations yield the crystal-field splitting and Racah parameters of Dq=1926 cm−1, B=780 cm−1 and C=2878 cm−1, with C/B=3.7. The emission spectrum is assigned on the basis of the zero phonon line corresponding to the 2Eg→4A2g transition and its vibrational sidebands. A comparative study of the variation in the crystal-field splitting and the Mn4+ 2Eg energy level position in materials with the perovskite structure is also presented.",

keywords = "Covalence, Crystal-field splitting, LaGaO, Luminescence, Mn, Perovskite",

author = "Srivastava, \{A. M.\} and Camardello, \{S. J.\} and Brik, \{M. G.\}",

note = "Publisher Copyright: {\textcopyright} 2016",

year = "2017",

month = mar,

day = "1",

doi = "10.1016/j.jlumin.2016.11.015",

language = "English",

volume = "183",

pages = "437--441",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Luminescence of Mn4+ in the orthorhombic perovskite, LaGaO3

AU - Srivastava, A. M.

AU - Camardello, S. J.

AU - Brik, M. G.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - The optical properties of Mn4+ (3d3) in the orthorhombic perovskite, LaGaO3 are investigated. The Mn4+ energy levels are calculated using the exchange charge model of crystal-field theory. The calculated Mn4+ energy levels are in good agreement with the experimental spectroscopic data. The results of our calculations yield the crystal-field splitting and Racah parameters of Dq=1926 cm−1, B=780 cm−1 and C=2878 cm−1, with C/B=3.7. The emission spectrum is assigned on the basis of the zero phonon line corresponding to the 2Eg→4A2g transition and its vibrational sidebands. A comparative study of the variation in the crystal-field splitting and the Mn4+ 2Eg energy level position in materials with the perovskite structure is also presented.

AB - The optical properties of Mn4+ (3d3) in the orthorhombic perovskite, LaGaO3 are investigated. The Mn4+ energy levels are calculated using the exchange charge model of crystal-field theory. The calculated Mn4+ energy levels are in good agreement with the experimental spectroscopic data. The results of our calculations yield the crystal-field splitting and Racah parameters of Dq=1926 cm−1, B=780 cm−1 and C=2878 cm−1, with C/B=3.7. The emission spectrum is assigned on the basis of the zero phonon line corresponding to the 2Eg→4A2g transition and its vibrational sidebands. A comparative study of the variation in the crystal-field splitting and the Mn4+ 2Eg energy level position in materials with the perovskite structure is also presented.

KW - Covalence

KW - Crystal-field splitting

KW - LaGaO

KW - Luminescence

KW - Mn

KW - Perovskite

UR - https://www.scopus.com/pages/publications/85007360592

U2 - 10.1016/j.jlumin.2016.11.015

DO - 10.1016/j.jlumin.2016.11.015

M3 - Article

AN - SCOPUS:85007360592

SN - 0022-2313

VL - 183

SP - 437

EP - 441

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -