METHOD FOR DETERMINING G VALUE USING MANGANESE MARKER

• Main Author: MIZUTA YUKIO
• Format: Patent
• Language: English
• Published: 31.07.1990
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

PURPOSE:To determine the (g) value of an unknown sample with high accuracy by giving the (g) value intrinsic to an Mn<2+> marker which applies the virtual central magnetic field of spectra and an isotropic fine bond constant and determining the resonance magnetic fields of respective absorption rays from a microfrequency. CONSTITUTION:The nuclear spin quantum number of Mn<2+> is I=5/2 and the nuclear spin magnetic quantum number which is the projection component of magnetic field directions can take different 6 discrete states and, therefore, the ESR signals of the Mn<2+> marker are 6 lines. The virtual magnetic field H0=hnu/(g0beta) is determined from a Planck's constant, the g0 value intrinsic to the Mn<2+> marker and Bohr magneton betawhen the microwave frequency nu of the ESR spectra is determined. The resonance magnetic field Hc=H0-AmI-{A /(2H0)}{I(I+1)-mI } is then determined from the isotropic fine bond constant A, the nuclear spin quantum number I, and the projection component mI of the quantum number I to the magnetic field. The calibration of the magnetic field is easily executed and the resonance magnetic field H'c of the ESR spectra of the unknown sample is determined if the plural resonance magnetic fields are determined in such a manner. The g value, g=hnu/(betaH'c) of the unknown sample is thus determined.