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A Ten Year Perspective On Diluted Magnetic Semiconductors And Oxides Pdf

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Handbook of Spintronics pp Cite as. In , it was theoretically predicted that ferromagnetism FM at high temperature could be obtained in many semiconductors such as ZnO, GaAs, GaN, etc. The magnetic ordering in those compounds was suggested to originate from the Ruderman—Kittel—Kasuya—Yoshida interaction of localized moments of dopants via 2 p holes or 4 s electrons. Actually, room temperature FM was observed; however, the phenomenon is not exactly as what theorists have proposed. The finding of FM in undoped HfO 2 thin films in has first given some alert to the magnetism community to rejudge the real role that a dopant indeed plays. Research on very thin films and nanoparticles of Diluted Magnetic Oxide semiconductors DMSO has pointed out that downscaling magnetic oxide semiconductors to nanometer scale should be an important step, in order to make them ferromagnetic. It opens a door to exploit the bright side of nano-world in this field of spintronics.

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Bonanni and T. Bonanni , T. The comprehensive search for multifunctional materials has resulted in the discovery of semiconductors and oxides showing ferromagnetic features persisting to room temperature. In this tutorial review the methods of synthesis of these materials, as well as the application of element-specific nano-analytic tools, particularly involving synchrotron radiation and electron microscopy, are described and shown to reveal the presence of nano-scale phase separations.

A story of high-temperature ferromagnetism in semiconductors.

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A ten-year perspective on dilute magnetic semiconductors and oxides Published on Dec 1, in Nature Materials Tomasz Dietl 53 Estimated H-index: View Paper. Add to Collection. In , a seminal study predicted ferromagnetism above room temperature in diluted magnetic semiconductors and oxides, fuelling tremendous research activity that has lasted for a decade. Tomasz Dietl reviews the progress in understanding these materials over the past ten years, with a view to the future of semiconductor spintronics.

Can we build materials that show properties of both ferromagnets and semiconductors at room temperature? Magnetic semiconductors are semiconductor materials that exhibit both ferromagnetism or a similar response and useful semiconductor properties. If implemented in devices, these materials could provide a new type of control of conduction. 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. While many traditional magnetic materials, such as magnetite , are also semiconductors magnetite is a semimetal semiconductor with bandgap 0. To that end, dilute magnetic semiconductors DMS have recently been a major focus of magnetic semiconductor research. These are based on traditional semiconductors, but are doped with transition metals instead of, or in addition to, electronically active elements.


A Ten-Year Perspective on Dilute Magnetic Semiconductors and Oxides | Over the past ten ChemInform Abstract: A Ten-Year Perspective on Dilute Magnetic Semiconductors and Oxides Request Full-text Paper PDF.


A ten-year perspective on dilute magnetic semiconductors and oxides

Abstract: As one branch of spintronics, diluted magnetic semiconductors DMSs are extensively investigated due to their fundamental significance and potential application in modern information society. Alternatively, the discovery of a new generation DMSs with independent spin and charge doping, such as Ba,K Zn,Mn 2 As 2 briefly named BZA , attracted considerable attention due to their unique advantages in physical properties and heterojunction fabrication. The prospective of new type of DMSs with independent spin and charge doping is briefly discussed.

Either your web browser doesn't support Javascript or it is currently turned off. In the latter case, please turn on Javascript support in your web browser and reload this page. Read article at publisher's site DOI : Phys Rev Lett, 7 Phys Rev Lett, 17

Advances in new generation diluted magnetic semiconductors with independent spin and charge doping

Dual-Color Lasing Lines from EMPs in Diluted Magnetic Semiconductor CdS:NiI Structure

Have one ever seen a semiconductor that can issue two-color lasing lines? The diluted magnetic semiconductor DMS can do this. This finding opens a way to understand the collective behaviour of spin-coupled excitons in DMS and to find novel applications in the spin-related quantum technology. However, no one has ever detected dual lasing lines with large-separation issuing from one semiconductor structure at the same time because there are no different dense excitons of very different energy values except those semiconductor nanostructures in the optical cavity [ 4 , 5 ]. In contrast to the photon binding in an optical cavity, the local spontaneously ferromagnetic moments or coupled spins in a DMS structure supplied another choice to bind excitons to the collective EMP formation for single-mode lasing [ 6 , 7 ].

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