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Friday, July 31, 2020 | History

3 edition of FIR-laser magnetooptics on Cr-based diluted magnetic semiconductors found in the catalog.

FIR-laser magnetooptics on Cr-based diluted magnetic semiconductors

Rasmus Krevet

FIR-laser magnetooptics on Cr-based diluted magnetic semiconductors

by Rasmus Krevet

  • 66 Want to read
  • 35 Currently reading

Published by Cuvillier Verlag in Göttingen .
Written in English

    Subjects:
  • Diluted magnetic semiconductors.

  • Edition Notes

    Statementvon Rasmus Krevet.
    Classifications
    LC ClassificationsQA611.8.M25 K74 1994
    The Physical Object
    Pagination84 p. :
    Number of Pages84
    ID Numbers
    Open LibraryOL864061M
    ISBN 103930340240
    LC Control Number95147733
    OCLC/WorldCa31861759

    A high-speed pulsed laser deposition method with the deposition rate of several tens of microns per 1 h enabled us to obtain isotropic Fe–Pt thick film magnets. Increase in the laser power enabled us to obtain as-deposited films with L1 0 ordered phase due to the heat radiation from a target, which means that a substrate heating system and a post-annealing process are not required to achieve.   The only source capable of generating such an ultra high magnetic field from laser-matter interactions is the return current of electrons flowing in the skin layer of plasma surfaces. This has been exploited to generate mega gauss magnetic fields on macroscopic scale [1, 2] or in laser-plasma interactions near the laser focal spot [3–5]. A.

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FIR-laser magnetooptics on Cr-based diluted magnetic semiconductors by Rasmus Krevet Download PDF EPUB FB2

Miura, in Comprehensive Semiconductor Science and Technology, Cyclotron resonance in diluted magnetic semiconductors. Diluted magnetic semiconductors (DMSs) have generally low mobility (less than a few hundreds cm 2 V −1 s −1 in most cases), due to the high doping of the magnetic impurity ions.

Actually, the concentration of the magnetic impurities is much higher. Dilute magnetic semiconductors (DMS) form a class of materials that combine properties of a semiconductor host with magnetic effects due to an impurity dopant.

While the concept of DMS materials was known for a long time, it was only in that researchers were able to demonstrate such materials in GaAs and InAs films doped with Mn (Munetaka. Abstract. Recent topics relating to the magneto-optics of diluted magnetic semi­conductors (DMS) are described.

After explaining how the hybridization of d-electron states of transition metal ions with the sp-band electron (sp-d exchange interaction) causes the Zeeman splittings and magneto-optic effects, we will describe the magneto-optic studies of magnetic ordering in Cd l-x Mn x Te (0 Cited by: Have one ever seen a semiconductor that can issue two-color lasing lines.

The diluted magnetic semiconductor (DMS) can do this. Here, we have observed dual lasing lines of nm and nm from a DMS structure of CdS:NiI, in which the excitonic magnetic polaron (EMP) and localized excitonic magnetic polaron (LEMP) are excitations out of ferromagnetic (NiS) nanocluster and NiI2 Cited by: 1.

Magnetic Laser Level Self-Leveling Cross-Line with Degree Mounting - Wall and Line Laser Klein Tools 93LCL out of 5 stars 20 $ $ 00 $ $ There is a large amount of literature on the introduction of magnetic ions into semiconducting materials [4,5,6], there is some evidence on room temperature ferromagnetism with controllable semiconducting properties [6].

In addition to the III-V semiconductors, some work has been performed on the II-VI semiconductors such as zinc oxide [7]. 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. Self-leveling Laser Level - Huepar Box-1G ft/45m Outdoor Green Cross Line Laser Level with Vertical Beam Spread Covers of °, Selectable Laser Lines, ° Magnetic Base and.

System Upgrade on Fri, Jun 26th, at 5pm (ET) During this period, our website will be offline for less than an hour but the E-commerce and registration of new users may not be available for up to 4 hours. Mn: S=5/2) Interaction between hole spin and Mn local moment is AFM, giving rise to an effective FM coupling between Mn spins [Dietl et al., R()] Magnetic Mechanism and Physical Properties Two basic approaches to understand magnetism in DMS Mean Field Theory based on Zener model Clusters formed by magnetic atoms are responsible.

Room temperature ferromagnetism has been observed in the Cu doped ZnO films deposited under an oxygen partial pressure of 10 -3 and 10 -5 torr on Pt ( nm)/Ti (45 nm)/Si () substrates using pulsed laser deposition. Due to the deposition at relatively high temperature ( K), Cu and Ti atoms diffuse to the surface and interface, which significantly affects the magnetic properties.

Semiconductor lasers' oscillation wavelengths respond to temperature- and magnetic field-fluctuations. As reported in the 's, these wavelengths shortened, at lower than 80K, under a magnetic field larger than 4T. This phenomenon attracted our attention, during preliminary experiments, because, when we exposed bulk-type semiconductor lasers oscillating at nm to relatively weak magnetic.

Room temperature ferromagnetism has been observed in the Cu doped ZnO films deposited under an oxygen partial pressure of 10−3 and 10−5 torr on Pt ( nm)/Ti (45 nm)/Si () substrates using. Abstract. The photoluminescene signal of individual semimagnetic CdSe–Zn Mn Se quantum dots is used to study the magnetization of the Mn 2+ spin system in the exchange field of a single exciton.

We demonstrate that by increasing the laser excitation power a significant blue shift of the photoluminescence signal occurs. Far-infrared laser or terahertz laser (FIR laser, THz laser) is a laser with output wavelength in between µm (frequency THz), in the far infrared or terahertz frequency band of the electromagnetic spectrum.

FIR lasers have application in terahertz spectroscopy, terahertz imaging as well in fusion plasma physics diagnostics. They can be used to detect explosives and chemical. Abstract: A magnetic field sensor using fiber ring cavity laser based on magnetic fluid (MF) is proposed and experimentally demonstrated.

MF-coated single-mode-no-core-singlemode fiber structure is inserted in the fiber ring laser cavity, which acts as a bandpass filter and the magnetic field sensing component simultaneously.

ZINC-BLENDE Mg 1-x Mn x Te - A NEW DILUTED MAGNETIC SEMICONDUCTOR SYSTEM. Crystal Growth /, () h, wski, rt and BOUND MAGNETIC POLARON IN Cr-BASED DILUTED MAGNETIC SEMICONDUCTORS Phys.

Rev. B58, () wski. FIR-Laser Magnetooptics on Cr-based Diluted Magnetic Semiconductors [PDF] Flashback [PDF] Forrest Gump - Kunstfigur oder Rolle mit Behinderung.

[PDF] Fülle unseres Alltags [PDF] Generation als Grundbegriff einer historischen Geschichtskultur [PDF] Geschichte der. Abstract: Magnetic nozzles have great potential for improving the efficiency and performance of coaxial plasma accelerators in applications such as space propulsion and advanced manufacturing.

Proper design of magnetic field geometry can improve coaxial accelerator performance in three ways. First, the applied field which intercepts the anode surface without directly connecting the two. Magnetic Semiconductor Superlattices.

Currently a great deal of attention is being focused on spintronics, a new area of solid-state electronics. GaMnAs is a man-made F M semiconductor. It is an example of a diluted magnetic semiconductor (D M S) in which a fraction of nonmagnetic cations (Ga) is substituted with magnetic ions (Mn).

Books. Publishing Support. Login. Elliott R J Theory of the effect of spin–orbit coupling on magnetic resonance in some semiconductors Phys. Rev. 96 Crossref Zvezdin A K and Kotov V A Modern Magnetooptics and Magnetooptical Materials (Bristol: Institute of Physics Publishing) Crossref.1.

INTRODUCTION Dilute magnetic semiconductors (DMSs) have drawn considerable attention in the past few years in view of their projected potential for the development of the magneto-optoelectronics devices 3 It is generally accepted that ferromagnetism in semiconductors requires a few percent of the transition metal (TM) ions dopants that have partially filled shell of d or f electrons to.Subscribe to our newsletter Stay up to date with the latest news from Easy-Laser.