Spin-glass ordering in the layered III-VI diluted magnetic semiconductor Ga1−xMnxS

Spin filtering and spin separation in diluted magnetic semiconductor hybrid systems

We demonstrate spin-dependent tunneling features of electronic transport in diluted magnetic semiconductor/semiconductor hybrid systems. It is shown that the geometrical asymmetry of the multilayer heterostructure results in the asymmetry of the spin polarization on the external electric field. The degree of the asymmetry can be changed by adjusting the structural configuration and the magnitud...

Magnetic Ordering in Layered Magnets

Room-temperature ferromagnetism in a II-VI diluted magnetic semiconductor Zn(1-x)Cr(x)Te.

The magnetic and magneto-optical properties of a Cr-doped II-VI semiconductor ZnTe were investigated. Magnetic circular dichroism measurements showed a strong interaction between the sp carriers and localized d spins, indicating that Zn(1-x)Cr(x)Te is a diluted magnetic semiconductor. The Curie temperature of the film with x=0.20 was estimated to be 300+/-10 K, which is the highest value ever r...

About Ge(Mn) diluted magnetic semiconductor

Deposition of 0.5 monolayer of Mn by molecular beam epitaxy on the surface of a Ge(0 0 1) substrate, and annealing, allowed the fabrication of a cluster-free Ge(Mn) diluted solution. Electronic spin resonance (ESR) was used to study the magnetic properties of this solution. These measurements, combined with secondary ion mass spectrometry, atomic force microscopy, and Auger electron spectroscop...

Theory of diluted magnetic semiconductor ferromagnetism

We present a theory of carrier-induced ferromagnetism in diluted magnetic semiconductors ( III1-xMnxV) which allows for arbitrary itinerant-carrier spin polarization and dynamic correlations. Both ingredients are essential in identifying the system's elementary excitations and describing their properties. We find a branch of collective modes, in addition to the spin waves and Stoner continuum w...