EPR study of LiGa5O8: Cr3+

T. J. Glynn; L. Kelleher; G. F. Imbusch; D. M. Larkin; F. R. Merritt; M. J. Berggren

doi:10.1063/1.1676517

EPR study of LiGa₅O₈: Cr³⁺

T. J. Glynn, L. Kelleher, G. F. Imbusch, D. M. Larkin, F. R. Merritt, M. J. Berggren

Physics

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Abstract

An EPR study has been undertaken of Cr³⁺ in LiGa ₅O₈. The site symmetry is rhombic and the system can be described by the spin Hamiltonian, H = gβH·S+D[.S_z ²-1/3S(S+1)]+E(S_x²-S_u²), where D= 0.331±0.002 cm^-1, E = 0.018±0.002 cm ^-1, and the average g value, assumed isotropic, is 1.980±0.005. The axes' of the spin Hamiltonian are tilted slightly from the expected crystallographic directions. The arrangement of Li⁺ and Ga³⁺ ions in next-to-nearest neighbor positions results in a large electrostatic field of odd parity at the site of the chromium ion.

Original language	English
Pages (from-to)	2925-2930
Number of pages	6
Journal	Journal of Chemical Physics
Volume	55
Issue number	6
DOIs	https://doi.org/10.1063/1.1676517
Publication status	Published - 1971

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@article{48017a069ec240bd98a5061de9b416cc,

title = "EPR study of LiGa5O8: Cr3+",

abstract = "An EPR study has been undertaken of Cr3+ in LiGa 5O8. The site symmetry is rhombic and the system can be described by the spin Hamiltonian, H = gβH·S+D[.Sz 2-1/3S(S+1)]+E(Sx2-Su2), where D= 0.331±0.002 cm-1, E = 0.018±0.002 cm -1, and the average g value, assumed isotropic, is 1.980±0.005. The axes' of the spin Hamiltonian are tilted slightly from the expected crystallographic directions. The arrangement of Li+ and Ga3+ ions in next-to-nearest neighbor positions results in a large electrostatic field of odd parity at the site of the chromium ion.",

author = "Glynn, \{T. J.\} and L. Kelleher and Imbusch, \{G. F.\} and Larkin, \{D. M.\} and Merritt, \{F. R.\} and Berggren, \{M. J.\}",

year = "1971",

doi = "10.1063/1.1676517",

language = "English",

volume = "55",

pages = "2925--2930",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics",

number = "6",

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TY - JOUR

T1 - EPR study of LiGa5O8

T2 - Cr3+

AU - Glynn, T. J.

AU - Kelleher, L.

AU - Imbusch, G. F.

AU - Larkin, D. M.

AU - Merritt, F. R.

AU - Berggren, M. J.

PY - 1971

Y1 - 1971

N2 - An EPR study has been undertaken of Cr3+ in LiGa 5O8. The site symmetry is rhombic and the system can be described by the spin Hamiltonian, H = gβH·S+D[.Sz 2-1/3S(S+1)]+E(Sx2-Su2), where D= 0.331±0.002 cm-1, E = 0.018±0.002 cm -1, and the average g value, assumed isotropic, is 1.980±0.005. The axes' of the spin Hamiltonian are tilted slightly from the expected crystallographic directions. The arrangement of Li+ and Ga3+ ions in next-to-nearest neighbor positions results in a large electrostatic field of odd parity at the site of the chromium ion.

AB - An EPR study has been undertaken of Cr3+ in LiGa 5O8. The site symmetry is rhombic and the system can be described by the spin Hamiltonian, H = gβH·S+D[.Sz 2-1/3S(S+1)]+E(Sx2-Su2), where D= 0.331±0.002 cm-1, E = 0.018±0.002 cm -1, and the average g value, assumed isotropic, is 1.980±0.005. The axes' of the spin Hamiltonian are tilted slightly from the expected crystallographic directions. The arrangement of Li+ and Ga3+ ions in next-to-nearest neighbor positions results in a large electrostatic field of odd parity at the site of the chromium ion.

UR - https://www.scopus.com/pages/publications/37849032555

U2 - 10.1063/1.1676517

DO - 10.1063/1.1676517

M3 - Article

SN - 0021-9606

VL - 55

SP - 2925

EP - 2930

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 6

ER -

EPR study of LiGa₅O₈: Cr³⁺

Abstract

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