12 research outputs found
Magnetic structural effect in nonequilibrium defective solids
Scientific study of the effect of structural memory of nonequilibrium
defective solids about the processing in magnetic field (the magnetic
structural effect (MSE) was continued in this paper. The study was aimed to
reveal the universal nature of the MSE, which was investigated in several new
nonequilibrium defective solids. The results of investigation of the processing
in the vortical magnetic field (PVMF) and its effect on the structure of the
natural magnetite Fe3O4 and the SnO2 films were presented. The methods of
Mössbauer and X-ray spectroscopy were used. The PVMF reduction of a
defectiveness of Fe3O4 structure in the magnetite was detected. The MSE was
also observed in the Mössbauer spectra of diamagnetic tin oxide SnO2 films
after the PVMF. One of the possible explanations of the MSE was given in the
paper.Comment: 6 pages, 6 figures, 3 table
The Energy Level Shifts, Wave Functions and the Probability Current Distributions for the Bound Scalar and Spinor Particles Moving in a Uniform Magnetic Field
We discuss the equations for the bound one-active electron states based on
the analytic solutions of the Schrodinger and Pauli equations for a uniform
magnetic field and a single attractive -potential. It is vary
important that ground electron states in the magnetic field differ essentially
from the analogous state of spin-0 particles, whose binding energy was
intensively studied more than forty years ago. We show that binding energy
equations for spin-1/2 particles can be obtained without using the language of
boundary conditions in the -potential model developed in pioneering
works. We use the obtained equations to calculate the energy level
displacements analytically and demonstrate nonlinear dependencies on field
intensity. We show that the magnetic field indeed plays a stabilizing role in
considered systems in a case of the weak intensity, but the opposite occurs in
the case of strong intensity. These properties may be important for real
quantum mechanical fermionic systems in two and three dimensions. We also
analyze the exact solution of the Pauli equation for an electron moving in the
potential field determined by the three-dimensional -well in the
presence of a strong magnetic field. We obtain asymptotic expressions for this
solution for different values of the problem parameters. In addition, we
consider electron probability currents and their dependence on the magnetic
field. We show that including the spin in the framework of the nonrelativistic
approach allows correctly taking the effect of the magnetic field on the
electric current into account. The obtained dependencies of the current
distribution, which is an experimentally observable quantity, can be manifested
directly in scattering processes, for example.Comment: 31 pages, 10 figure