Magnetic resonance spectrum of localized spins in conductive materials in a linear field gradient

Abstract

For spins localized in a conductive sample the shape of the magnetic resonance spectrum is calculated in the presence of a linear gradient of the constant magnetic field. It is shown that the shape of the spectrum depends on the sign of the gradient. This result allows one to interpret an experimentally observed inequality of intensities of spectra which arise from skin layers on opposite sides of a sample when a linear gradient is applied across a sample with a given thickness. Results of this work will be helpful when the magnetic resonance imaging methods are used in studying conductive systems.

1-D EPR imaging of conducting and lossy-dielectric samples

“…This effect is well known from observations of magnetic resonance in metals [ 10,11] and it was also observed in EPR study of lossy-dielectric materials [12]. A further discussion of this effect can be found in [13]. The contribution of the real part of the magnetic susceptibility to the EPR spectra indicates that the relation (1) is invalid for conducting and lossy-dielectric samples.…”

Special Issue of Applied Magnetic Resonance Celebrating the 85th Birthdays of Klaus Möbius and Kev M. Salikhov

“…Furthermore, he introduced (with D. Stehlik) the concept of the observer spin (3-spin system) in structure determination [26] and developed protocols for quantum teleportation across a biological membrane [27], which was finally realized experimentally more than a decade later on a photo-induced electron donor-acceptor system [28]. Salikhov also contributed to EPR imaging, especially covering conducting and lossy dielectric materials [29,30]. Early in the new millennium, Kev got interested in quantum computing and informatics and suggested protocols to use electron spins as qubits together with his student M. Volkov [31].…”