Epitaxial Magnetic Garnet Heterostructures

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...

Tunable magnetic properties in ultrathin Co/garnet heterostructures

Interface magnetic properties of epitaxial Fe-InAs heterostructures

The growth and interface magnetic properties of epitaxial Fe films grown on InAs (100)-4 2 have been studied using low-energy electron diffraction, in situ magneto-optical Kerr effect, and X-ray magnetic circular dichronism. The magnetic properties at room temperature were found to proceed via three phases with thickness; a nonmagnetic phase, a superparamagnetic phase, and a ferromagnetic phase...

Epitaxial BiFeO3 multiferroic thin film heterostructures.

Enhancement of polarization and related properties in heteroepitaxially constrained thin films of the ferroelectromagnet, BiFeO3, is reported. Structure analysis indicates that the crystal structure of film is monoclinic in contrast to bulk, which is rhombohedral. The films display a room-temperature spontaneous polarization (50 to 60 microcoulombs per square centimeter) almost an order of magn...

In situ magnetic a.nd structural analysis of epitaxial NisoFezo thin films for spin-valve heterostructures

We have investigated structural and magnetic properties of epitaxial (100) N&Feel0 films grown on relaxed Cu/Si(lOO) seed layers. The crystallographic texture and orientation of these films was analyzed in situ by reflection high energy electron diffraction (RHEED), and M situ by x-ray diffraction and cross-sectional transmission electron microscopy (XTEM). In particular, RHEED intensities were...