Electron paramagnetic resonance Zeeman splitting

Electron paramagnetic resonance spectroscopy, also known as electron spin resonance (ESR) spectroscopy, detects the excitation of electron spins in an applied external magnetic field.13 Conventional continuous-wave (CW) EPR is based on resonance of a fixed-frequency standing microwave to excite some of the electrons in Zeeman-split spin multiplets to undergo a transition from a lower Ms level to a higher... [Pg.85]

Electron paramagnetic resonance (EPR) Quadrupole tensor, nuclear Zeeman splitting, g values, coupling constants, relaxation times Usually for odd electron metal sites probes ground-state wave function at high resolution... [Pg.118]

More direct information can be obtained by the electron-spin resonance (paramagnetic resonance) method, in which the magnetic dipole transitions between the levels arising from the lowest states by the Zeeman splitting are observed as the resonance absorptions. This powerful method has been extensively applied to various paramagnetic salts, and the results are summarized in excellent review articles by the Oxford group. - - The reader is also referred to the recent interesting book by Low. ... [Pg.194]

The nuclear hyperfine interaction splits the paramagnetic states of an electron when it is close to a nucleus with a magnetic moment. For a random orientation of spins and nuclei, the tensor quantities in Eq. (4.11) are replaced by scalar distributions, and the resonance magnetic field is shifted from the Zeeman field // by... [Pg.109]

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