Controlling electronic structure through epitaxial strain in ZnSe/ZnTe nano-heterostructures

Epitaxial Growth of III–Nitride/Graphene Heterostructures for Electronic Devices

Epitaxial GaN films were grown by metal organic chemical vapor deposition (MOCVD) on functionalized epitaxial graphene (EG) using a thin ( 11 nm) conformal AlN nucleation layer. Raman measurements show a graphene 2D peak at 2719 cm 1 after GaN growth. X-ray diffraction analysis reveals [0001]-oriented hexagonal GaN with (0002) peak rocking curve full width at the half maximum (FWHM) of 544 arcs...

Epitaxial Magnetic Garnet Heterostructures

A summary of our recent progress in the growth and characterization of magnetic and magnetooptic garnet heterostructures is presented in this paper. The similarity in crystal chemistry and lattice parameters among the various garnets (yttrium iron garnet, bismuth iron garnet, etc.) is utilized to create artificially layered heterostructures and superlattices. Rare earth (especially Eu) substitu...

Controlling electronic properties of epitaxial nanocomposites of dissimilar materials

The electronic properties of epitaxial semiconductors are strongly modified by the inclusion of semi-metallic nanoparticles grown in the semiconductor. For example, epitaxial semi-metallic nanoparticles can donate carriers, pin Fermi levels, shorten electron–hole recombination times, enhance electron tunneling and increase scattering of phonons in semiconductor host layers. There are dozens of ...

Controlling nitrogen migration through micro-nano networks

Nitrogen fertilizer unabsorbed by crops eventually discharges into the environment through runoff, leaching and volatilization, resulting in three-dimensional (3D) pollution spanning from underground into space. Here we describe an approach for controlling nitrogen loss, developed using loss control fertilizer (LCF) prepared by adding modified natural nanoclay (attapulgite) to traditional ferti...

Influence of strain on the electronic structure of the TbMnO3/SrTiO3 epitaxial interface