Electron dynamics in parallel electric and magnetic fields

Electron dynamics in parallel electric and magnetic fields

We examine the spatial distribution of electrons generated by a fixed energy point source in uniform, parallel electric and magnetic fields. This problem is simple enough to permit analytic quantum and semiclassical solution, and it harbors a rich set of features which find their interpretation in the unusual and interesting properties of the classical motion of the electrons: For instance, the...

Magnetic Braiding and Parallel Electric Fields

The braiding of the solar coronal magnetic field via photospheric motions – with subsequent relaxation and magnetic reconnection – is one of the most widely debated ideas of solar physics. We readdress the theory in the light of developments in three-dimensional magnetic reconnection theory. It is known that the integrated parallel electric field along field lines is the key quantity determinin...

Peculiar Hot Electron Effects in Crossed Electric and Magnetic Fields

Hot carrier effects expected (in some cases observed) in crossed electric (both static and microwave) and magnetic (not quantum) fields are surveyed. The case that the carrieroptical phonon interaction is strong compared with the other scattering processes is of main concern. In static electric fields, the principal effect is the carrier accumulation in a special region of the momentum space wh...

Electron dynamics in superlattices subject to crossed magnetic and electric fields

The motion of charge particles in a superlattice structure subject to the crossed magnetic and electric fields, both applied in the in-plane direction, is discussed with respect to the novel type of terahertz oscillations suggested recently, [M. Orlita, R. Grill, L. Smrčka, M. Zvára, Phys. Rev. B 74 (2006) 125312]. The effects of the finite size of the superlattice is considered in comparison w...

Conventional Transmission Electron Microscope Observation of Electric and Magnetic Fields