[كتاب][B] Handbook of nanophysics: nanoparticles and quantum dots

KD Sattler - 2016‏ - taylorfrancis.com
In the 1990s, nanoparticles and quantum dots began to be used in optical, electronic, and
biological applications. Now they are being studied for use in solid-state quantum …

Electrical control of a single Mn atom in a quantum dot

Y Léger, L Besombes, J Fernández-Rossier… - Physical review …, 2006‏ - APS
We report on the reversible electrical control of the magnetic properties of a single Mn atom
in an individual quantum dot. Our device permits us to prepare the dot in states with three …

Magnetic exchange interactions in quantum dots containing electrons and magnetic ions

F Qu, P Hawrylak - Physical review letters, 2005‏ - APS
We present a theory of magnetic exchange interactions in quantum dots containing
electrons and magnetic ions. We find the interaction between the electron and Mn ion to …

Electronic structure and binding energy of a hydrogenic impurity in a hierarchically self-assembled GaAs∕ AlxGa1− xAs quantum dot

SS Li, JB **a - Journal of applied physics, 2006‏ - pubs.aip.org
We calculate the electronic structures and binding energy of a hydrogenic impurity in a
hierarchically self-assembled GaAs∕ Al x Ga 1− x As quantum dot (QD) in the framework of …

Single-exciton spectroscopy of semimagnetic quantum dots

J Fernández-Rossier - Physical Review B—Condensed Matter and Materials …, 2006‏ - APS
A photoexcited II-VI semiconductor quantum dots doped with a few Mn spins is considered.
The effects of spin-exciton interactions and the resulting multispin correlations on the …

Voltage-tunable ferromagnetism in semimagnetic quantum dots with few particles: Magnetic polarons and electrical capacitance

AO Govorov - Physical Review B—Condensed Matter and Materials …, 2005‏ - APS
Magnetic semiconductor quantum dots with a few carriers represent an interesting model
system where ferromagnetic interactions can be tuned by voltage. By designing the …

Single-exciton spectroscopy of single Mn doped InAs quantum dots

J Van Bree, PM Koenraad, J Fernández-Rossier - Physical Review B …, 2008‏ - APS
The optical spectroscopy of a single InAs quantum dot doped with a single Mn atom is
studied using a model Hamiltonian that includes the exchange interactions between the …

Theory of magnetism in diluted magnetic semiconductor nanocrystals

SJ Cheng - Physical Review B—Condensed Matter and Materials …, 2008‏ - APS
We present a theoretical investigation of magnetism in II-VI diluted magnetic semiconductor
nanocrystals (NCs). The energy spectra, magnetizations, and magnetic susceptibilities of …

Controlling magnetism of semi-magnetic quantum dots with odd-even exciton numbers

SJ Cheng, P Hawrylak - Europhysics Letters, 2008‏ - iopscience.iop.org
We present a theory of optical control of magnetism in a self-assembled quantum dot (SAD)
containing magnetic ions. We show that the magnetic state of Mn ions can be controlled by …

Exciton fine structure and coherent spin precession in transition-metal-doped semiconductor quantum dots

AK Bhattacharjee - Physical Review B—Condensed Matter and Materials …, 2007‏ - APS
The optical properties of quantum dots (QDs) containing a single magnetic impurity are
studied within a multiband envelope function formalism. We present a unified treatment of …