Magnetoswitching of current oscillations in dilute magnetic semiconductor nanostructures
نویسندگان
چکیده
منابع مشابه
Coulomb-Blockade Oscillations in Semiconductor Nanostructures
Coulomb-blockade oscillations of the conductance are a manifestation of singleelectron tunneling through a System of two tunnel junctions in series (see Fig. 1) [l]-[5]. The conductance oscillations occur äs the voltage on a nearby gate electrode is varied. This setup is the SET transistor described in See. 6 of Chap. 2. The number N of conduction electrons on an Island (or dot) between two tun...
متن کاملZnO-based nanostructures for diluted magnetic semiconductor
Since the prediction by Dietl et al. in the year 2000, extensive research activities have been focused on the ZnObased diluted magnetic materials (DMSs). Earlier works were mainly performed using bulk or thin film materials with transition-metal doping, and diverse magnetic properties including ferromagnetism, paramagnetism, and diamagnetism have been reported. Identifying the dominant mechanis...
متن کاملInteraction effects in dilute cluster-assembled magnetic nanostructures
We have prepared dilute nanostructured magnetic samples by codeposition of preformed cobalt clusters with a narrow size distribution around 40 atoms per cluster in silver matrices. Magnetoresistance measurements are used to derive information about the magnetic structure of the samples. Effects of cluster size distribution or anisotropy can be neglected in our samples. Deviations from simple La...
متن کاملOptical Properties of Semiconductor Nanostructures in Magnetic Field
In this work, the near bandgap linear optical properties of semiconductor quantum structures under applied magnetic field are investigated. These properties are determined mainly by a quasi-particle consisting of one electron and one hole called exciton. First, the exciton theory is developed starting with the one-electron Hamiltonian in a crystal, continuing with the Luttinger and Bir-Pikus Ha...
متن کاملDilute Magnetic Semiconductor: A Review of Theoretical Status
Dilute Magnetic semiconductors has been attracting researchers due to their wide range of applications like spintronics devices such as spin-FET, spin-LED, nanoscale integrated magnetic memories & sensors etc. But most of practical applications requires curie temperature for DMS to be around room temperature or more. Hence different studies had been done world-wide for controlling the electrica...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2009
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.80.155202