Rapid analysis of the anisotropic EPR spectra of polycrystalline and amorphous systems formed by species with orthorhombic symmetry of the g value
Journal Article
·
· J. Struct. Chem. (Engl. Transl.); (United States)
A new method has been proposed for determining the magnetic resonance parameters (g-values, line widths) from the EPR spectra of vitrified solutions and powders of species with orthorhombic symmetry of the g value and spin S = 1/2. The method has an accuracy comparable with that of computer modeling of the spectra, and at the same time is extremely simple, since it does not require complex mathematical calculations. The approach is based on the expansion of the integral expression describing the vitreous EPR spectrum into a rapidly converging series from which analytical expressions are obtained. Comparison of the approximate spectra with spectra modeled using a computer showed good agreement. The analytical expressions have been used to obtain a number of simple rules (not requiring a computer) for obtaining magnetic resonance parameters from the spectra with a good accuracy.
- Research Organization:
- Kazan' Physicotechnical Institute (USSR)
- OSTI ID:
- 5887706
- Journal Information:
- J. Struct. Chem. (Engl. Transl.); (United States), Journal Name: J. Struct. Chem. (Engl. Transl.); (United States) Vol. 29:3; ISSN JSTCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMORPHOUS STATE
ANGULAR MOMENTUM
ANISOTROPY
COMPUTERIZED SIMULATION
CRYSTAL LATTICES
CRYSTAL MODELS
CRYSTAL STRUCTURE
CRYSTALS
ELECTRON SPIN RESONANCE
EPR SPECTROMETERS
FUNCTIONS
GAUSS FUNCTION
LINE WIDTHS
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIC SUSCEPTIBILITY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
ORTHORHOMBIC LATTICES
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POLYCRYSTALS
POWDERS
RESONANCE
SIMULATION
SPECTRA
SPECTROMETERS
SPIN
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMORPHOUS STATE
ANGULAR MOMENTUM
ANISOTROPY
COMPUTERIZED SIMULATION
CRYSTAL LATTICES
CRYSTAL MODELS
CRYSTAL STRUCTURE
CRYSTALS
ELECTRON SPIN RESONANCE
EPR SPECTROMETERS
FUNCTIONS
GAUSS FUNCTION
LINE WIDTHS
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIC SUSCEPTIBILITY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
ORTHORHOMBIC LATTICES
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POLYCRYSTALS
POWDERS
RESONANCE
SIMULATION
SPECTRA
SPECTROMETERS
SPIN