Magnetic field effect on tunnel ionization of deep impurities by terahertz radiation
S.D.Ganichev, S.N.Danilov, M.Sollinger, J.Zimmermann, A.S.Moskalenko,, V.I.Perel, I.N.Yassievich, C.Back, W.Prettl
TL;DR
This paper investigates how magnetic fields influence the tunnel ionization of deep impurities under terahertz radiation, revealing a suppression effect dependent on magnetic field orientation and strength.
Contribution
It demonstrates the magnetic field's suppression of tunnel ionization of deep impurities in terahertz fields, highlighting orientation and temperature dependencies.
Findings
Ionization probability decreases with magnetic field perpendicular to electric field.
Suppression effect is prominent at low temperatures and high magnetic fields.
Orientation of magnetic field significantly affects ionization rates.
Abstract
A suppression of tunnelling ionization of deep impurities in terahertz frequency electric fields by a magnetic field is observed. It is shown that the ionization probability at external magnetic field, B, oriented perpendicular to the electric field of terahertz radiation, E, is substantially smaller than that at B || E. The effect occurs at low temperatures and high magnetic fields.
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