Luminescence of Mn4+ in the Orthorhombic Perovskites, ASnO3 (A=Ca, Sr)

A. M. Srivastava; M. G. Brik; H. A. Comanzo; W. W. Beers; W. Cohen; N. Cherepy; S. A. Payne

doi:10.1149/2.0132001JSS

Luminescence of Mn⁴⁺ in the Orthorhombic Perovskites, ASnO₃ (A=Ca, Sr)

A. M. Srivastava
, M. G. Brik
, H. A. Comanzo
, W. W. Beers
, W. Cohen
, N. Cherepy
, S. A. Payne

General Electric
Chongqing University of Posts and Telecommunications
University of Tartu
Jan Dlugosz University in Czestochowa
Lawrence Livermore National Laboratory

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

7 Atsauces (Scopus)

Kopsavilkums

The aim of this paper is to provide a comparative study of the spectroscopic properties of Mn⁴⁺ (3d³) ion in the orthorhombic perovskites, ASnO₃ (A=Ca, Sr). The most significant parameter controlling the energy of the zero-phonon line (²E→⁴A₂ transition) is the deviation of the octahedral O-Mn-O bond angle from the ideal 90⁰ value. It is significant that despite the longer Sn⁴⁺-O^2- bond distance, the crystal field strength (10 Dq) in CaSnO₃ is higher than that of SrSnO₃. We discuss this result in relation to the perovskite crystal chemistry. Mulliken population analysis and bond order calculation are made to clarify the nature of chemical bonding in the stannate perovskites.

Oriģinālvaloda	Angļu
Raksta numurs	016009
Žurnāls	ECS Journal of Solid State Science and Technology
Sējums	9
Izdevuma numurs	1
DOIs	https://doi.org/10.1149/2.0132001JSS
Publikācijas statuss	Publicēts - 2020
Ārēji publicēts	Jā

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title = "Luminescence of Mn4+ in the Orthorhombic Perovskites, ASnO3 (A=Ca, Sr)",

abstract = "The aim of this paper is to provide a comparative study of the spectroscopic properties of Mn4+ (3d3) ion in the orthorhombic perovskites, ASnO3 (A=Ca, Sr). The most significant parameter controlling the energy of the zero-phonon line (2E→4A2 transition) is the deviation of the octahedral O-Mn-O bond angle from the ideal 900 value. It is significant that despite the longer Sn4+-O2- bond distance, the crystal field strength (10 Dq) in CaSnO3 is higher than that of SrSnO3. We discuss this result in relation to the perovskite crystal chemistry. Mulliken population analysis and bond order calculation are made to clarify the nature of chemical bonding in the stannate perovskites.",

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T1 - Luminescence of Mn4+ in the Orthorhombic Perovskites, ASnO3 (A=Ca, Sr)

AU - Srivastava, A. M.

AU - Brik, M. G.

AU - Comanzo, H. A.

AU - Beers, W. W.

AU - Cohen, W.

AU - Cherepy, N.

AU - Payne, S. A.

PY - 2020

Y1 - 2020

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AB - The aim of this paper is to provide a comparative study of the spectroscopic properties of Mn4+ (3d3) ion in the orthorhombic perovskites, ASnO3 (A=Ca, Sr). The most significant parameter controlling the energy of the zero-phonon line (2E→4A2 transition) is the deviation of the octahedral O-Mn-O bond angle from the ideal 900 value. It is significant that despite the longer Sn4+-O2- bond distance, the crystal field strength (10 Dq) in CaSnO3 is higher than that of SrSnO3. We discuss this result in relation to the perovskite crystal chemistry. Mulliken population analysis and bond order calculation are made to clarify the nature of chemical bonding in the stannate perovskites.

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