magnetic semiconductor

Oxypnictides have been patented as magnetic semiconductors in early 2006.

Magnetic semiconductors are being researched as possible spintronic materials.

To that end, dilute magnetic semiconductors have recently been a major focus of magnetic semiconductor research.

Until recently, such magnetic semiconductors worked only at very low temperatures, but there are now reports of ones that remain magnetic up to 1,600 degrees Fahrenheit.

Magnetic semiconductors are semiconductor materials that exhibit both ferromagnetism (or a similar response) and useful semiconductor properties.

If there is an insufficient hole concentration in the magnetic semiconductor, then the Curie temperature would be very low or would exhibit only paramagnetism.

When doped with a suitable transition metal such as manganese, GaN is a promising spintronics material (magnetic semiconductors).

In contrast to the oxide CuO the material is not a magnetic semiconductor but a metallic conductor with weak Pauli-paramagnetism.

Diluted magnetic semiconductors (DMSs) have attracted scientific interest because of their unique spintronics properties with possible technological applications.

Whereas traditional electronics are based on control of charge carriers (n- or p-type), practical magnetic semiconductors would also allow control of quantum spin state (up or down).

His research interests include electrical and magnetic properties of low dimensional electron gases, spintronics based on diluted magnetic semiconductors and multiferroic/ferroelectric semiconductors.

His materials expertise centers on rare earth metals and alloys, transition metal based diluted magnetic semiconductors, and the perovskite type HiTc and CMR compounds.

Thin films of chromium-doped indium oxide (InCrO) are a magnetic semiconductor displaying high-temperature ferromagnetism, single-phase crystal structure, and semiconductor behavior with high concentration of charge carriers.

He previously worked on density functional theory and the Quantum Hall effect, and most recently has focused on the Spin Hall effect, magnetic insulators, magnetic semiconductors and spin-orbit interactions.

The theory proposed by Dietl required charge carriers in the case of holes to mediate the magnetic coupling of manganese dopants in the prototypical magnetic semiconductor, Mn-doped GaAs.

The fast pace of growing computing power could be sustained for many years to come thanks to new research from the UK's National Physical Laboratory (NPL) that is applying advanced techniques to magnetic semiconductors.

He received a Ph.D. degree from the Massachusetts Institute of Technology in 1988 in the area of magnetic semiconductors and was a postdoctoral fellow at Bell Laboratories (1988-1990) studying magnetism and correlated electronic systems, mostly with synchrotron-based X-ray techniques.

While many traditional magnetic materials, such as magnetite, are also semiconductors (magnetite is a semimetal semiconductor with bandgap 0.14 eV), materials scientists generally predict that magnetic semiconductors will only find widespread use if they are similar to well-developed semiconductor materials.