nipi delta-doping superlattices for amplitude modulation

Delta doping of ferromagnetism in antiferromagnetic manganite superlattices.

We demonstrate that delta doping can be used to create a dimensionally confined region of metallic ferromagnetism in an antiferromagnetic (AFM) manganite host, without introducing any explicit disorder due to dopants or frustration of spins. Theoretical consideration of these additional carriers shows that they cause a local enhancement of ferromagnetic double exchange with respect to AFM super...

A delta-doped quantum well system with additional modulation doping

A delta-doped quantum well with additional modulation doping may have potential applications. Utilizing such a hybrid system, it is possible to experimentally realize an extremely high two-dimensional electron gas (2DEG) density without suffering inter-electronic-subband scattering. In this article, the authors report on transport measurements on a delta-doped quantum well system with extra mod...

Iv-vi Compound Doping Superlattices

Doping superlattices ("nipi's") made of IV-VI compounds are interesting both with respect to their extraordinary physical properties and their possible applications for infrared optoelectronic devices. The properties of PbTe nipi's are reviewed with emphasis on band structure, lifetime of non-equilibrium carriers and photo-sensitivity.

Improvement of near-infrared absorption linewidth in AlGaN/GaN superlattices by optimization of delta-doping location

WEAK LOCALIZATION EFFECTS IN GaAs DOPING SUPERLATTICES