Relevant bibliographies by topics / Quantum phenomenon- Two dimensional electron gas / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Quantum phenomenon- Two dimensional electron gas.

Dissertations / Theses on the topic 'Quantum phenomenon- Two dimensional electron gas'

Author: Grafiati
Published: 6 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 25 dissertations / theses for your research on the topic 'Quantum phenomenon- Two dimensional electron gas.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Evaldsson, Martin. "Quantum transport and spin effects in lateral semiconductor nanostructures and graphene." Doctoral thesis, Norrköping : Department of Science and technology, Linköping University, 2008. http://www.bibl.liu.se/liupubl/disp/disp2008/tek1202s.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Paul, Jagannath. "Coherent Response of Two Dimensional Electron Gas probed by Two Dimensional Fourier Transform Spectroscopy." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6738.

Full text
Abstract:
Advent of ultrashort lasers made it possible to probe various scattering phenomena in materials that occur in a time scale on the order of few femtoseconds to several tens of picoseconds. Nonlinear optical spectroscopy techniques, such as pump-probe, transient four wave mixing (TFWM), etc., are very common to study the carrier dynamics in various material systems. In time domain, the transient FWM uses several ultrashort pulses separated by time delays to obtain the information of dephasing and population relaxation times, which are very important parameters that govern the carrier dynamics of
APA, Harvard, Vancouver, ISO, and other styles
3

Magyar, Peter. "Quelques aspects du transport électronique bidimensionnel : études théoriques en champ magnétique faible et fort." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10025.

Full text
Abstract:
Ce travail presente deux etudes de transport des systemes d'electrons bidimensionnels dans les limites du champ magnetique faible et fort. Premierement, nous avons analyse l'utilite d'une nouvelle approche theorique, destinee a calculer la mobilite limitee par (a) des impuretes ionisees ou par (b) des dislocations. Ce traitement a pour but d'ameliorer la description de l'effet d'ecran. Notre etude a revele que la methode ne represente que des avantages tres limites dans le cas (a), tandis que dans le cas (b) les courbes calculees en fonction de la temperature et de la largeur du puits sont en
APA, Harvard, Vancouver, ISO, and other styles
4

De, Liberato Simone. "Cavity quantum electrodynamics and intersubband polaritonics of a two dimensional electron gas." Phd thesis, Université Paris-Diderot - Paris VII, 2009. http://tel.archives-ouvertes.fr/tel-00421386.

Full text
Abstract:
L'électrodynamique quantique en cavité, c'est-à-dire l'étude du couplage lumière-matière en géométries confinées, a permis d'observer, grâce à des cavités de plus en plus performantes, le régime de couplage fort lumière-matière.<br />Dans ce régime, le temps de vie d'un photon est plus long que le temps caractéristique de l'interaction avec la matière ; un seul photon subit donc plusieurs cycles d'absorption et de réémission avant de s'échapper de la cavité.<br />Les premières expériences dans ce régime, effectuées avec des atomes dans des cavités supraconductrices, ont été suivies par des réa
APA, Harvard, Vancouver, ISO, and other styles
5

Bowman, John V. "Transport in a confined two-dimensional electron gas with longitudinal potential variations." Virtual Press, 1995. http://liblink.bsu.edu/uhtbin/catkey/958798.

Full text
Abstract:
Since the discovery of conductance quantization within a nanostnucture, investigations have sought out causes to conductance fluctuations beyond the established plateaus. The focus of this work is to show the fundamental effects upon conductance due to longitudinal potentials and double quantum boxes when confined by hardwall boundaries. A theoretical model based upon a tight-binding recursive tureen's function methodology was modified to incorporate potential barrier variations. A qualitative evaluation, as well as, explanation of the model's results and limitations is discussed.<br>Departmen
APA, Harvard, Vancouver, ISO, and other styles
6

Yakymenko, Ivan. "Modelling of injection of electrons by low-dimensional nanowire into a reservoir." Thesis, Linköpings universitet, Teoretisk Fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-145659.

Full text
Abstract:
High-mobility two-dimensional electron gas (2DEG) which resides at the interface between GaAs and AlGaAs layered semiconductors has been used experimentally and theoretically to study ballistic electron transport. The present project is motivated by recent experiments in magnetic electron focusing. The proposed device consists of two quantum point contacts (QPCs) serving as electron injector and detector which are placed in the same semiconductor GaAs/AlGaAs heterostructure. This thesis is focused on the theoretical study of electron flow coming from the injector QPC (a short quantum wire) and
APA, Harvard, Vancouver, ISO, and other styles
7

Cipiloglu, Mustafa Ali. "Thermoelectric Effects In Mesoscopic Physics." Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604753/index.pdf.

Full text
Abstract:
The electrical and thermal conductance and the Seebeck coefficient are calculated for one-dimensional systems, and their behavior as a function of temperature and chemical potential is investigated. It is shown that the conductances are proportional to an average of the transmission probability around the Fermi level with the average taken for the thermal conductance being over a wider range. This has the effect of creating less well-defined plateaus for thermal-conductance quantization experiments. For weak non-linearities, the charge and entropy currents across a quantum point contact are ex
APA, Harvard, Vancouver, ISO, and other styles
8

Szewc, Wojciech. "Theory and simulation of scanning gate microscopy : applied to the investigation of transport in quantum point contacts." Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-00876522.

Full text
Abstract:
This work is concerned with the theoretical description of the Scanning Gate Microscopy (SGM) in general and with solving particular models of the quantum point contact (QPC) nanostructure, analytically and numerically. SGM is an experimental technique, which measures the conductance of a nanostructure, while a charged AFM tip is scanned above its surface. It gives many interesting results, such as lobed and branched images, interference fringes and a chequerboard pattern. A generally applicable theory, allowing for unambiguous interpretation of the results, is still missing. Using the Lippman
APA, Harvard, Vancouver, ISO, and other styles
9

Kunc, Jan. "Gaz électronique bidimensionnel de haute mobilité dans des puits quantiques de CdTe : études en champ magnétique intense." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00586639.

Full text
Abstract:
Une étude expérimentale de gaz d'électrons bidimensionnel confinés dans des puits quantiques de CdTe et de CdMnTe est présentée. L'analyse de données est soutenue par des calculs numériques de la structure de bande des états confinés, utilisant l'approximation de densité locale et de fonction enveloppe. Un calcul de type k.p a été utilisé pour justifier l'approximation parabolique appliquée pour les bandes valence. Les échantillons ont été caractérisés par spectroscopie Raman et par spectroscopie d'absorption de la résonance cyclotron infrarouge. Le magnéto-transport à bas champ est dominé par
APA, Harvard, Vancouver, ISO, and other styles
10

Lovisa, Stephane. "Propriétés optiques de puits quantiques de CdTe contenant un gaz d'électrons bidimensionnel." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10099.

Full text
Abstract:
Les proprietes optiques et magneto-optiques de puits quantiques de cdte contenant un gaz d'electrons bidimensionnel ont ete etudiees par spectroscopie d'absorption et d'emission, en fonction de la concentration des electrons. Une premiere etude par spectroscopie d'emission, effectuee sur une serie d'echantillons a densite electronique fixe, a montre que la masse effective des electrons depend fortement de leur concentration. Des calculs tenant compte des effets a n corps expliquent bien cette renormalisation de masse. Par ailleurs, des dispositifs schottky ont ete realises qui permettent de va
APA, Harvard, Vancouver, ISO, and other styles
11

Mondal, Puja. "Quantum transport in two-dimensional electron gas with non-relativistic and relativistic dispersion." Thesis, 2018. http://localhost:8080/iit/handle/2074/7766.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

(9142649), Dohyung Ro. "MULTI-ELECTRON BUBBLE PHASES." Thesis, 2020.

Find full text
Abstract:
<div>Strong electronic correlations in many-body systems are cradles of new physics. They give birth to novel collective states hosting emergent quasiparticles as well as intriguing geometrical charge patterns. Two-dimensional electron gas in GaAs/AlGaAs under perpendicular magnetic field is one of the most well-known hosts in condensed matter physics where a plethora of the collective states appear. In the strong magnetic field regime, strong Coulomb interactions among the electrons create emergent quasiparticles, i.e. composite fermions and Cooper-paired composite fermions. In the weak magne
APA, Harvard, Vancouver, ISO, and other styles
13

(7023347), Vidhi Shingla. "Magnetotransport Studies of Diverse Electron Solids in a Two-Dimensional Electron Gas." Thesis, 2019.

Find full text
Abstract:
The two dimensional electron gas subjected to a perpendicular magnetic field is a model system that supports a variety of electronic phases. Perhaps the most well-known are the fractional quantum Hall states, but in recent years there has been an upsurge of interest in the charge ordered phases commonly referred to as electron solids. These solids are a consequence of electron-electron interactions in a magnetic field. While some solid phases form in the lowest Landau level, the charged ordered phases are most abundant in the higher Landau levels. Examples of such phases include the Wigner sol
APA, Harvard, Vancouver, ISO, and other styles
14

Huang, Yen-Hao, and 黃彥豪. "Quantum point contact and quantum dot fabrication and measurement in two-dimensional electron gas." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ymqk3h.

Full text
Abstract:
碩士<br>國立中央大學<br>物理學系<br>106<br>In this study, we used GaAs/AlGaAs heterostructure and monolayer MoS2 to construct two dimensional electron gas. We tried to fabricate double quantum dot structure on GaAs/AlGaAs heterostructure and measure the coplanar waveguide resonator coupling the two level system which consist of double quantum dot or not. This topic is related to circuit quantum electrodynamics. The recently progress is still in fabrication. Resonator and double quantum dot system completed separately. We must solve alignment fail and lift-off fail before measuring. On the other hand,
APA, Harvard, Vancouver, ISO, and other styles
15

Chen, Min-Yin, and 陳明印. "Electronic Proporties of Two-Dimensional Electron Gas in AlGaSb/ InAs Quantum Wells." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/79307535189160880677.

Full text
Abstract:
碩士<br>國立中山大學<br>物理研究所<br>83<br>The main purpose of this thesis is to explore the properties of electrons in the two-dimension electron gas(2DEG)and super- lattice. In the firt part, we introduce a scheme of computing the band structure:the tight-binding method,to comput that of type-I GaAs/AlAs semi-conductor superlattice by the adoption of sp3s* model,and the direct-indirect transitions between the energy gaps of different thickness,as the theoretic groundwork of our analyzing experiment.I
APA, Harvard, Vancouver, ISO, and other styles
16

Chao-Ping, Huang. "Transport in a GaAs two-dimensional electron gas containing self-assembled InAs quantum dots." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-0906200611070900.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Huang, Chao-Ping, and 黃兆平. "Transport in a GaAs two-dimensional electron gas containing self-assembled InAs quantum dots." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/29449273137822310020.

Full text
Abstract:
碩士<br>國立臺灣大學<br>物理研究所<br>94<br>The thesis describes the low temperature magnetotransport properties in a GaAs two-dimensional electron gas containing self-assembled InAs quantum dots. This thesis comprises the following two parts. 1. Localization, Landau quantization, and insulator-quantum Hall transition at low magnetic fields We present a magnetotransport study of a two-dimensional electron system. Shubnikov-de Haas (SdH) oscillations are observed in the insulator, indicating that Landau quantization can modulate the density of states without causing the formation of the QH liquid. With
APA, Harvard, Vancouver, ISO, and other styles
18

杜冠誼. "QUANTUM SCATTERING FROM A CIRCULAR DISK IN A CUBIC-K DRESSELHAUS-TYPE TWO DIMENSIONAL ELECTRON GAS." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/29282360735395454792.

Full text
Abstract:
碩士<br>國立交通大學<br>電子物理系所<br>97<br>This thesis work has devoted to the study of spin-dependent scattering e®ects from a circular-disk microscopic structure with Dresselhaus-type spin-orbit coupling. The Dres- selhaus spin-orbit coupling considered here includes both contributions terms for one is linear-k dependence and the other is cubic-k dependence. Based on the method of partial waves, the complete scattering wave function in a circular scattering region can be rigorously derived and obtained. Through investigating their spatial-resolved scattering behaviors from linear and cubic Dresselhaus-
APA, Harvard, Vancouver, ISO, and other styles
19

Yao, Wen-Jiaw, and 姚文醮. "Transport Studies of Two-Dimensional Electron Gas in AlGaN/GaN Quantum Well at Low Temperature and High Magnetic Field." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/99767580470644091400.

Full text
Abstract:
碩士<br>國立中山大學<br>物理學系研究所<br>91<br>We have studied the electronic properties of AlxGa1-xN/GaN heterostructures by using Shubnikov–de Haas(SdH) measurement. Two SdH oscillations were detected on the samples of x=0.35 and 0.31, due to the population of the first two subbands with the energy separations of 128 and 109 meV, respectively. For the sample of x=0.25, two SdH oscillations beat each other, probably due to a finite zero-field spin splitting. The spin-splitting energy is equal to 9.0 meV. The samples also showed a persistent photoconductivity effect after illuminating by blue light-emitting
APA, Harvard, Vancouver, ISO, and other styles
20

Ho, Pei-Chi, and 何珮綺. "Transport studies of two-dimensional electron gas in GaAs/Al0.3Ga0.7As double quantum well at low temperature and high magnetic field." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/44225399162143297287.

Full text
Abstract:
碩士<br>國立中山大學<br>物理學系研究所<br>91<br>The two-dimensional electron system in strongly coupled GaAs/Al0.3Ga0.7As double quantum wells has been studied by Shubnikov-de Haas（SdH）measurements. The degenerate subbands of the double quantum wells are lift into two subbands with a symmetric or anti- symmetric z-direction wave function. We observed that the SdH oscillation due to the second subband of anti-symmetric wave function. The effective mass of the second subband is linearly dependent on the magnetic field range from 0.680 T to 1.964 T. The mass enhancement for the double-quantum-well with an equal
APA, Harvard, Vancouver, ISO, and other styles
21

Aamir, Mohammed Ali. "Impact of Disorder and Topology in Two Dimensional Systems at Low Carrier Densities." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/3118.

Full text
Abstract:
Two dimensional (2D) systems with low carrier density is an outstanding platform for studying a wide spectrum of physics. These include both classical and quantum effects, arising from disorder, Coulomb interactions and even non-trivial topological properties of band-structure. In this thesis, we have explored the physics at low carrier number density in GaAs/AlGaAs heterostructure and bilayer graphene, by investigating in a larger phase space using a variety of electrical measurement tools. A two-dimensional electron system (2DES) formed in a GaAs/AlGaAs heterostructure offers an avenue to bui
APA, Harvard, Vancouver, ISO, and other styles
22

Aamir, Mohammed Ali. "Impact of Disorder and Topology in Two Dimensional Systems at Low Carrier Densities." Thesis, 2016. http://hdl.handle.net/2005/3118.

Full text
Abstract:
Two dimensional (2D) systems with low carrier density is an outstanding platform for studying a wide spectrum of physics. These include both classical and quantum effects, arising from disorder, Coulomb interactions and even non-trivial topological properties of band-structure. In this thesis, we have explored the physics at low carrier number density in GaAs/AlGaAs heterostructure and bilayer graphene, by investigating in a larger phase space using a variety of electrical measurement tools. A two-dimensional electron system (2DES) formed in a GaAs/AlGaAs heterostructure offers an avenue to bui
APA, Harvard, Vancouver, ISO, and other styles
23

"Polarization Effects in Group III-Nitride Materials and Devices." Doctoral diss., 2012. http://hdl.handle.net/2286/R.I.14643.

Full text
Abstract:
abstract: Group III-nitride semiconductors have wide application in optoelectronic devices. Spontaneous and piezoelectric polarization effects have been found to be critical for electric and optical properties of group III-nitrides. In this dissertation, firstly, the crystal orientation dependence of the polarization is calculated and in-plane polarization is revealed. The in-plane polarization is sensitive to the lateral characteristic dimension determined by the microstructure. Specific semi-polar plane growth is suggested for reducing quantum-confined Stark effect. The macroscopic electrost
APA, Harvard, Vancouver, ISO, and other styles
24

z, Drozdowa Byszewski Marcin. "Propriétés optiques d'un gaz d'électrons bidimensionnel soumis à un champ magnétique." Phd thesis, 2005. http://tel.archives-ouvertes.fr/tel-00010691.

Full text
Abstract:
Les propriétés d'un gaz électronique bidimensionnel soumis à champs magnétiques intenses et à bas champs magnétiques sont étudiés par la spectroscopie optique: l'effet Hall quantique fractionnaire (FQHE) par photoluminescence et diffusion inélastique de la lumière, puis un nouvel effet oscillatoire de la résistance induit par micro-ondes (MIROs) par transport et absorption des micro-ondes. Les effets des interactions entre électrons du 2DEG sont à l'origine de FQHE. Jusqu'à maintenant, les expériences d'optiques n'ont pas permis les études des interactions entre électrons sur toute la gamme de
APA, Harvard, Vancouver, ISO, and other styles
25

Kunc, Jan. "Dvourozměrný elektronový plyn v kvantových jamách CdTE: studie ve vysokých magnetických polích." Doctoral thesis, 2011. http://www.nusl.cz/ntk/nusl-296138.

Full text
Abstract:
KurHigh mobility two-dimensional electron gas in CdTe quantum wells: High magnetic field studies Experimental studies of two-dimensional electron gases confined in CdTe and CdMnTe quantum wells are presented. The data analysis is supported by numerical calcula- tions of the band structure of confined states, using the local density and envelope func- tion approximations. Four by four, k.p calculations have been performed to justify the parabolic approximation of valence bands. Samples were characterized by Raman scatter- ing spectroscopy and far infrared cyclotron resonance absorption measurem
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography