Far-infrared spectra of lateral quantum dot molecules
نویسندگان
چکیده
منابع مشابه
Far-infrared spectra of lateral quantum dot molecules
We study effects of electron–electron interactions and confinement potential on the magneto-optical absorption spectrum in the far-infrared (FIR) range of lateral quantum dot molecules (QDMs). We calculate FIR spectra for three different QDM confinement potentials. We use an accurate exact diagonalization technique for two interacting electrons and calculate dipole transitions between two-body ...
متن کاملRole of interactions in the far-infrared spectrum of a lateral quantum-dot molecule.
We study the effects of electron-electron correlations and confinement potential on the far-infrared spectrum of a lateral two-electron quantum-dot molecule by exact diagonalization. The calculated spectra directly reflect the lowered symmetry of the external confinement potential. Surprisingly, we find interactions to drive the spectrum towards that of a high-symmetry parabolic quantum-dot. We...
متن کاملModeling of High Temperature GaN Quantum Dot Infrared Photodetectors
In this paper, we present calculations for different parameters of quantum dot infrared photodetectors. We considered a structure which includes quantum dots with large conduction-band-offset materials (GaN/AlGaN). Single band effective mass approximation has been applied in order to calculate the electronic structure. Throughout the modeling, we tried to consider the limiting factors which dec...
متن کاملSelf-consistent far-infrared response of quantum-dot structures.
,ENTATIA, P AGE , ,Form Approved 0 B I OMs No. 0704-0188 Imated to average I nour r? ewMao ,. ncludliq t e u e fo te rev ow nq Inittu alo0n° Wa ch"mq e tnq data sog e,. to revitw nq the coatft ,On of informa.tion. $*n coments ding tis burden "Utmete of any other iEWM of tJ'4 , otoen. to *wai*nqton .e"a uanemn $erv ceg. Orf1 orate for nform tion Ooe.ral wo and peoootS. U'1 $effelon A D -A 2 3 8 ...
متن کاملStructures and spectra of gold nanoclusters and quantum dot molecules
Size-evolutions of structural and spectral properties in two types of finite systems are discussed. First we focus on energetics and structures of gold clusters, particularly AuN in the 40.N . 200 range exhibiting a discrete sequence of optimal clusters with a decahedral structural motiff, and on the electronic structure of bare and methyl-thiol passivated Au38 clusters. Subsequently, bonding a...
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: New Journal of Physics
سال: 2006
ISSN: 1367-2630
DOI: 10.1088/1367-2630/8/2/027