4 papers
Wave Packet Dynamics in a Biased Finite-Length Superlattice
Herbert Kroemer
In a superlattice containing a finite number of periods, the allowed values of the Bloch wave number form a discrete set, and the dynamics of an electron through k-space under the…
Large-amplitude oscillation dynamics and domain suppression in a superlattice Bloch oscillator
Herbert Kroemer
We analyze the current dynamics of a superlattice Bloch oscillator under conditions where, in addition to the dc bias field causing a negative differential ac conductivity, a simil…
On the nature of the negative-conductivity resonance in a superlattice Bloch oscillator
Herbert Kroemer
Adding a high-frequency ac component to the bias field of a superlattice induces a synchronous modulation of the velocity with which the electrons traverse the Brillouin zone. In t…
On the magnetoresistance anisotropy of a 2-dimensional electron gas with large half-integer filling factors
Herbert Kroemer
The unsymmetric confinement of the electrons in a typical 2-dimensional electron gas (2DEG) breaks the full cubic symmetry of the in-plane transport properties. A rigorous invarian…