Electron Paramagnetic Resonance of Cr{sup 3+} Ions in ABO{sub 3} (A = Sc, In, Ga) Diamagnetic Crystals

Journal Article · Sat Dec 15 00:00:00 EST 2018 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776118120245· OSTI ID:22917835

Rudenko, V. V.; Ovchinnikov, S. G.; Molokeev, M. S. ^[1]

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1. Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center,” Siberian Branch, Russian Academy of Sciences (Russian Federation)

A magnetic resonance method is applied to the investigation of a number of isostructural diamagnetic compounds ABO{sub 3} (A = Sc, In, and Ga) with small additions of Cr{sup 3+} ions (S = 3/2) sufficient to observe single-ion and pair spectra. It is shown that the resonance spectra for isolated Cr{sup 3+} ions can be described to a good accuracy by the ordinary axial spin Hamiltonian for 3d ions in octahedral oxygen environment. The parameters of the spin Hamiltonian are determined for single Cr{sup 3+} ion and Cr{sup 3+}–Cr{sup 3+} pair. Lattice distorsions of the parent ABO{sub 3} crystals caused by the Cr{sup 3+} impurities is discussed.

• OSTI ID: 22917835
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 127, Issue 6; Other Information: Copyright (c) 2018 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORATES
CHROMIUM IONS
CRYSTALS
ELECTRON SPIN RESONANCE
GALLIUM COMPOUNDS
HAMILTONIANS
IMPURITIES
INDIUM COMPOUNDS
OXYGEN
SCANDIUM COMPOUNDS
SPECTRA
SPIN