Log in

Relevant bibliographies by topics / Condensed systems / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Condensed systems.

Dissertations / Theses on the topic 'Condensed systems'

Author: Grafiati

Published: 18 May 2024

Last updated: 26 July 2025

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

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Condensed systems.'

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

Keyserlingk, Curt William Von. "String-net models in condensed matter systems." Thesis, University of Oxford, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669743.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Grice, Della Diane. "Microwave effects in condensed phase chemical systems." Thesis, University of Hull, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397082.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Urban, Helena Claire. "One-dimensional solitons in condensed Fermi systems." Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321491.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Caramella, Lucia. "Theoretical spectroscopy of realistic condensed matter systems." Paris 6, 2009. http://www.theses.fr/2009PA066019.

Full text

Abstract:

Le sujet de cette these porte sur des calculs ab initio de proprietes d'etat fondamental et excite de systemes differents, dans le cadre de la dft et de la tddft. Du cote numerique, nous avons mis en oeuvre une methode originale pour l'evaluation de la polarisabilite dynamique a particules independantes, et generalise un code au spin dans le but d'etudier les proprietes magnetiques de systemes reels. Nous avons etudie des spectres de reflectivite anisotrope et de perte d'energie pour la surface (100) du silicium, propre ou oxydee. La comparaison entre les spectres mesures et simules, nous ont

APA, Harvard, Vancouver, ISO, and other styles

5

Prentice, Joseph Charles Alfred. "Investigating anharmonic effects in condensed matter systems." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/275467.

Full text

Abstract:

This thesis presents work done on the calculation of the effects of anharmonic nuclear motion on the properties of solid materials from first principles. Such anharmonic effects can be significant in many cases. A vibrational self-consistent field (VSCF) method is used as the basis for these calculations, which is then improved and applied to a variety of solid state systems. Firstly, work done to improve the efficiency of the VSCF method is presented. The standard VSCF method involves using density functional theory (DFT) to map the Born-Oppenheimer (BO) energy surface that the nuclei move in

APA, Harvard, Vancouver, ISO, and other styles

6

Caramella, L. "Theoretical spectroscopy of realistic condensed matter systems." Doctoral thesis, Università degli Studi di Milano, 2009. http://hdl.handle.net/2434/140774.

Full text

Abstract:

This thesis is devoted to the ab initio calculation of ground state and excited state properties of different systems within the density functional theory and the time dependent density functional theory.From the numerical point of view we implemented an original method in a plane waves code devoted to calculate the independent particle response function.Moreover, we generalized the same code to the spin degree of freedom in order to study the magnetic properties of realistic condensed matter systems.We studied the reflectance anisotropy spectra and the energy loss spectraof the clean and oxid

APA, Harvard, Vancouver, ISO, and other styles

7

Osterloh, Andreas. "Entanglement and its facets in condensed matter systems." Hannover Technische Informationsbibliothek und Universitätsbibliothek Hannover, 2009. http://d-nb.info/100089357X/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Ammon, Martin Matthias. "Gauge/Gravity Duality applied to Condensed Matter Systems." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-117739.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Forester, Timothy Ronald. "Computer simulations of condensed phases of molecular systems." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279657.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

McMillan, Fiona M. "New pyrolytic routes to ortho-condensed ring systems." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/11148.

Full text

Abstract:

A variety of methyl biphenyl-2-acrylate precursors, substituted in the 2’-, 3’- or 4’-positions, were synthesised using a Suzuki coupling reaction between 2-formylphenylboronic acid and the appropriate aryl halide, followed by Wittig olefination. These precursors were then pyrolysed to produce 3-cyano, 3-methyl and 3-chloro substituted phenanthrenes. The synthesis of 1-cyanophenanthrene was also successful. This route was also successful in producing naphthothiophenes and naphthofurans from appropriate heteroaryl-substituted precursors. This methodology was expanded into the synthesis of sever

APA, Harvard, Vancouver, ISO, and other styles

11

Duncan, Peter D. "Computer simulation of two-dimensional condensed matter systems." Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/13737.

Full text

Abstract:

Motivated by the large diversity of two dimensional condensed matter systems, various two dimensional models were studied using computer simulation. The structure and dynamics in a monolayer of dipolar soft spheres were studied using Molecular Dynamics simulation. This is a model for colloidal ferrofluids. Langevin Dynamics simulations have been employed to study the aggregate kinetics of the dipolar chains and rings starting from a ‘random’ configuration. Clusters were identified using an energy criterion, and classified as chains, rings or defect clusters. The mechanisms by which these clust

APA, Harvard, Vancouver, ISO, and other styles

12

Smith, Gregory J. "Application of Attosecond Techniques to Condensed Matter Systems." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1608496995249541.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Feldt, Jonas. "Hybrid Simulation Methods for Systems in Condensed Phase." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E3F2-B.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Baraban, Larysa. "Capped colloids as model systems for condensed matter." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-73032.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Brooksby, Craig. "Nonadiabatic molecular dynamics with application to condensed phase chemical systems /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/11535.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Woo, Jung Min. "Two mathematical problems in disordered systems." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/289124.

Full text

Abstract:

Two mathematical problems in disordered systems are studied: geodesics in first-passage percolation and conductivity of random resistor networks. In first-passage percolation, we consider a translation-invariant ergodic family {t(b): b bond of Z²} of nonnegative random variables, where t(b) represent bond passage times. Geodesics are paths in Z², infinite in both directions, each of whose finite segments is time-minimizing. We prove part of the conjecture that geodesics do not exist in any fixed half-plane and that they have to intersect all straight lines with rational slopes. In random resi

APA, Harvard, Vancouver, ISO, and other styles

17

Osterloh, Andreas [Verfasser]. "Entanglement and its facets in condensed matter systems / Andreas Osterloh." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover, 2009. http://d-nb.info/100089357X/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Kavoussanaki, Eleftheria. "Topological defects in the universe and in condensed matter systems." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401774.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Brackstone, Mark Andrew. "Dynamic properties of models of modulated systems in condensed matter." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.255764.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Simmons, Stephanie. "Creation and control of entanglement in condensed matter spin systems." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:b9c5ad90-30e2-4e44-8c51-37d46eabc92f.

Full text

Abstract:

The highly parallel nature of the fundamental principles of quantum mechanics means that certain key resource-intensive tasks --- including searching, code decryption and medical, chemical and material simulations --- can be computed polynomially or even exponentially faster with a quantum computer. In spite of its remarkably fast development, the field of quantum computing is still young, and a large-scale prototype using any one of the candidate quantum bits (or 'qubits') under investigation has yet to be developed. Spin-based qubits in condensed matter systems are excellent candidates. Spin

APA, Harvard, Vancouver, ISO, and other styles

21

CamarÃo, Diego de Lucena. "Diffusive properties of soft condensed matter systems under external confinement." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13612.

Full text

Abstract:

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Nesta tese estudamos a influÃncia de potenciais de confinamento externos nas propriedades dinÃmicas de sistemas de matÃria condensada mole. Analisamos as propriedades difusivas de dois sistemas especÃficos utilizando simulaÃÃes computacionais (DinÃmica Molecular de Langevin e DinÃmica Browniana). No CapÃtulo 1, introduzimos o tÃpico sobre matÃria condensada mole. Mostramos vÃrios aspectos teÃricos e experimentais neste tipo de sistema. Fazemos uma breve introduÃÃo ao tÃpico de difusÃo, onde discutimos os principais aspectos do movi

APA, Harvard, Vancouver, ISO, and other styles

22

Pike, Nicholas A. "Energy Dispersion, Magnetism, and Transport in Three Condensed Matter Systems." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417604062.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Banerjee, Anand. "Studies of complex systems in condensed matter physics and economics." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8857.

Full text

Abstract:

Thesis (Ph. D.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

APA, Harvard, Vancouver, ISO, and other styles

24

Camarão, Diego de Lucena. "Diffusive properties of soft condensed matter systems under external confinement." reponame:Repositório Institucional da UFC, 2014. http://www.repositorio.ufc.br/handle/riufc/11285.

Full text

Abstract:

CAMARÃO, Diego de Lucena. Diffusive properties of soft condensed matter systems under external confinement. 2014. 142 f. Tese (Doutorado em Física) - Programa de Pós-Graduação em Física, Departamento de Física, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2014.<br>Submitted by Edvander Pires (edvanderpires@gmail.com) on 2015-04-09T20:25:36Z No. of bitstreams: 1 2014_tese_dlcamarao.pdf: 4771668 bytes, checksum: 12d4989237a73eeafcc143c607fa30dd (MD5)<br>Approved for entry into archive by Edvander Pires(edvanderpires@gmail.com) on 2015-04-10T20:52:49Z (GMT) No. of bitstreams: 1 2

APA, Harvard, Vancouver, ISO, and other styles

25

Hsu, Bailey. "Inhomogeneity-Induced Spin Current in Atomic and Condensed Matter Systems." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2172.

Full text

Abstract:

I derive and apply quantum propagator techniques to atomic and condensed matter systems. I observe many interesting features by following the evolution of a wavepacket. In atomic systems, I revisit the Stern-Gerlach effect and study the spin dynamics inside an inhomogeneous magnetic field. The results I obtained are not exactly the same as the textbook description of the effect which is usually a manifestation of a perfect space and spin entanglement. This discovery can provide insight on more reliable quantum computation device designs. In condensed matter systems, the doping concentration in

APA, Harvard, Vancouver, ISO, and other styles

26

MAMBRETTI, FRANCESCO. "EMERGENT PHENOMENA IN CONDENSED MATTER, SOFT MATTER AND COMPLEX SYSTEMS." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/820780.

Full text

Abstract:

Physical systems composed of a large number of reciprocally interacting constituents provide the natural context for the rise of emergent phenomena. Despite the intrinsic difficulty in providing a mathematical definition of what is meant for ‘emergence’ (see [Baas, in Langton, Alife III, Santa Fe Studies in the Sciences of Complexity, Proc. Volume XVII, Addison-Wesley, (1994)]), the intuitive notion of emergent property is that of a collection of interact- ing objects showing a novel collective behavior, qualitatively different from and not immediately attributable to the behaviors of the indi

APA, Harvard, Vancouver, ISO, and other styles

27

Arias, Tomas A. "New analytic and computational techniques for finite temperature condensed matter systems." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/13158.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Lacasse, Martin Daniel. "Exact dynamics of small Ising systems." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28814.

Full text

Abstract:

Monte Carlo simulations used for representing dynamical physical phenomena are studied in terms of a Markov chain operator acting on the probability distrubution of the states of a given system. The most general transition rule satisfying detailed balance and leading to a canonical ensemble probability distribution is derived using this formalism. The explicit Markov chain representing the two most commonly used canonical algorithms, the Metropolis and the Glauber transition rules, is then constructed and numerically applied to the states of an Ising model. The dynamical properties of the syst

APA, Harvard, Vancouver, ISO, and other styles

29

Yang, Ping 1961. "Thermal transport in mesoscopic dielectric systems." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85107.

Full text

Abstract:

Although the study of thermal transport in condensed matter has a very long history, it continues to be an active field of work due to its importance in many applications. The research subject reported in this thesis is on theoretical investigations of thermal energy transport in systems whose linear dimension is less than the wavelength of thermal phonons. Such situations occur in mesoscopic and nanoscopic scale dielectric structures which can now be fabricated in a number of laboratories. Due to the small system dimensions, phonons must be treated as waves. Thermal energy transport, t

APA, Harvard, Vancouver, ISO, and other styles

30

Bennett, Steven 1980. "Strong feedback effects in nanoelectromechanical systems." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100767.

Full text

Abstract:

We study theoretically a mechanical oscillator coupled to a superconducting single-electron transistor (SSET), focussing on the regime where incoherent Cooper pair tunnelling in the SSET leads to a negative damping instability of the oscillator. In this regime, large oscillator motion modulates tunnelling in the SSET, which in turn affects the oscillator. This interplay leads to interesting strong feedback effects, including a highly non-thermal stationary oscillator state and a significant enhancement of the low-frequency current noise in the SSET. These effects and others are reminiscent of

APA, Harvard, Vancouver, ISO, and other styles

31

Grossman, Bruno. "Kinetic roughening of interfaces in driven systems." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70226.

Full text

Abstract:

We study the dynamics of an interface driven far from equilibrium in three dimensions. We first derive the equations of motion which describe this physics. Numerical results are then obtained for three models which simulate the growth of an interface: the Kardar-Parisi-Zhang equation, a discrete version of that model, and a solid-on-solid model with asymmetric rates of evaporation and condensation. We show that the three models belong to the same dynamical universality class by estimating the dynamical scaling exponents and the scaling functions. We confirm the results by a careful study of th

APA, Harvard, Vancouver, ISO, and other styles

32

Hwang, Harold Young. "Nonlinear terahertz spectroscopy of electronic and vibrational responses in condensed matter systems." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/73174.

Full text

Abstract:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2012.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references.<br>In this work, I describe experiments utilizing high-field terahertz (THz) pulses to initiate nonlinear responses in several classes of materials. We have developed several methods for interrogating the nonlinear THz response of materials including collinear and nonc

APA, Harvard, Vancouver, ISO, and other styles

33

Provatas, Nikolas. "Kinetic roughening and bifurcations in reaction-diffusion systems." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28886.

Full text

Abstract:

We study the dynamics of two reaction-diffusion phenomena driven by chemical activation and thermal dissipation and evolving, respectively, on a randomly distributed or continuous medium. The first system describes the process of slow combustion of a randomly distributed reactant. It is studied by a phase-field model built up from first principles and describes the evolution of thermal and reactant concentration fields. Our combustion model incorporates thermal diffusion, activation and dissipation. We examine it in a manner which makes a connection between the propagation of combustion fronts

APA, Harvard, Vancouver, ISO, and other styles

34

Bridgeman, Catherine H. "Computational studies of layered materials and aqueous systems." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388760.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Lee, Junhyun. "Novel Quantum Phase Transitions in Low-Dimensional Systems." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:33493318.

Full text

Abstract:

We study a number of quantum phase transitions, which are exotic in their nature and separates non-trivial phases of matter. Since quantum fluctuations, which drive these phase transitions, are stronger in low-dimensions, we concentrate on low-dimensional systems. We consider two different two-dimensional systems in this thesis and study their phase transition. First, we investigate a phase transition in graphene, one of the most famous two-dimensional systems in condensed matter. For a suspended bilayer graphene in ν = 0 quantum Hall regime, the conductivity data and mean-field analysis sug

APA, Harvard, Vancouver, ISO, and other styles

36

Yan, Zhi Da. "Energy level statistics for ballistic and mesoscopic quantum systems." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40022.

Full text

Abstract:

Systems modelling nanoscale structures have been studied in the context of the theory of energy level statistics in the ballistic and mesoscopic as well as the insulating regimes. Statistics were obtained using a new unfolding scheme based on the existence of a local stationary property for fluctuations of the energy spectra. Two different models were used in the study with particular emphasis on the relevance to the physics of nanoscale devices. Thus, a quantum billiard model composed of a quasi-two-dimensional tight-binding atomic lattice was introduced. The results of the statistical analys

APA, Harvard, Vancouver, ISO, and other styles

37

Segall, Darren Eric 1970. "Coarse-graining electronic behavior in condensed matter systems : from electrons to continuum elasticity." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/29307.

Full text

Abstract:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2002.<br>Includes bibliographical references (leaves 131-137).<br>In this thesis properties of various condensed matter systems are studied, whose dependency on electronic behavior is incorporated through coarse-grained interactions. Three specific systems are considered. In the first system of study, high momentum, plane wave states of the electronic wave function are coarse-grained, while the low momentum states are fully resolved. Moreover, the coarse-graining procedure incorporates the response of the high momentum s

APA, Harvard, Vancouver, ISO, and other styles

38

Oppelstrup, Tomas. "Simulation of relaxation processes in complex condensed matter systems algorithmic and physical aspets /." Doctoral thesis, Stockholm : Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11574.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Kempton, James Russell. "Sites and diffusion of muons in FCC metal hydride systems." W&M ScholarWorks, 1987. https://scholarworks.wm.edu/etd/1539623772.

Full text

Abstract:

A positive muon can be considered an isotope of hydrogen due to similarities in spin and charge. For metal hydride systems, the muon enters the sample "as the last hydrogen added," and competes for the same sites as the hydrogen atoms. to observe the site competition and diffusion of both particles (muon and proton), several FCC metal hydrides, TiH{dollar}\sb{lcub}1.83{rcub}{dollar}, TiH{dollar}\sb{lcub}1.97{rcub}{dollar}, TiH{dollar}\sb{lcub}1.99{rcub}{dollar}, YH{dollar}\sb{lcub}1.77{rcub}{dollar}, YH{dollar}\sb2{dollar}, ZrH{dollar}\sb{lcub}1.94{rcub}{dollar}, and LaH{dollar}\sb{lcub}2.06{r

APA, Harvard, Vancouver, ISO, and other styles

40

Mason, Douglas Joseph. "Analytical Methods in Mesoscopic Systems." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10548.

Full text

Abstract:

The propsect of designing technologies around the quantum behavior of mesoscopic devices is enticing. This thesis present several tools to facilitate the process of calculating and analyzing the quantum properties of such devices – resonance, boundary conditions, and the quantum-classical correspondence are major themes that we study with these tools. In Chapter 1, we begin by laying the groundwork for the tools that follow by defining the Hamiltonian, the Green’s function, the scattering matrix, and the Landauer formalism for ballistic conduction. In Chapter 2, we present an efficient and eas

APA, Harvard, Vancouver, ISO, and other styles

41

SLEZAK, CYRILL BRANKO. "METHODS FOR CORRELATED ELECTRON SYSTEMS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1151419509.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

De, Alba Roberto. "Nonlinear mechanics of graphene membranes and related systems." Thesis, Cornell University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10254091.

Full text

Abstract:

<p> Micro- and nano-mechanical resonators with low mass and high vibrational frequency are often studied for applications in mass and force detection where they can offer unparalleled precision. They are also excellent systems with which to study nonlinear phenomena and fundamental physics due to the numerous routes through which they can couple to each other or to external systems. </p><p> In this work we study the structural, thermal, and nonlinear properties of various micro-mechanical systems. First, we present a study of graphene-coated silicon nitride membranes; the resulting devices d

APA, Harvard, Vancouver, ISO, and other styles

43

Zhang, Chang Gang. "A study of two electron defect systems in alkali halide crystals." Thesis, University of Ottawa (Canada), 1993. http://hdl.handle.net/10393/6475.

Full text

Abstract:

The structures of two electron defect systems in alkali halide crystals are studied. The systems which have been studied include: two electrons localized at an anion vacancy (F$\sp\prime$-centre); positronium self-trapped at an anion vacancy (Fe$\sp+$-centre); positron self-trapped at a cation vacancy (F$\sb{\rm anti}$-centre); positronium self-trapped at an interstice; and positronium in a Bloch state. An improved version of the extended-ion method which is based on the one electron Hartree-Fock approximation is used to perform these calculations. Its main feature is the exclusive use of floa

APA, Harvard, Vancouver, ISO, and other styles

44

Chowdhury, Debanjan. "Interplay of Broken Symmetries and Quantum Criticality in Correlated Electronic Systems." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:33493455.

Full text

Abstract:

This thesis delves into a study of phases of strongly correlated quantum matter confined to two spatial dimensions. The thesis can broadly be divided into three parts. In the first part, comprising of chapters 2 and 3, we investigate some interesting aspects of symmetry breaking and quantum criticality in the superconducting phase of the iron-based superconductors. In particular, motivated by tunneling microscopy measurements on FeSe, in chapter 2 we study the effect of spontaneously broken rotational symmetry on the structure of the superconducting vortex. In chapter 3, we study the critical

APA, Harvard, Vancouver, ISO, and other styles

45

Hovorka, Ondrej Friedman Gary. "Hysteresis behavior patterns in complex systems /." Philadelphia, Pa. : Drexel University, 2007. http://hdl.handle.net/1860/1791.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Moore, Edward Daniel. "Theoretical studies of random field systems." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240514.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Moore, Christopher Paul. "Tunneling Transport Phenomena in Topological Systems." Thesis, Clemson University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13420479.

Full text

Abstract:

<p> Originally proposed in high energy physics as particles, which are their own anti-particles, Majorana fermions have never been observed in experiments. However, possible signatures of their condensed matter analog, zero energy, charge neutral, quasiparticle excitations, known as Majorana zero modes (MZMs), are beginning to emerge in experimental data. The primary method of engineering topological superconductors capable of supporting MZMs is through proximity-coupled semiconductor nanowires with strong Rashba spin-orbit coupling and an applied magnetic field. Recent tunneling transport exp

APA, Harvard, Vancouver, ISO, and other styles

48

Zinkin, Martin Pen. "Neutron and X-ray scattering studies of Rbâ†2ZnClâ†4, frustrated pyrochlore antiferromagnets, and Nâ†2." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Donovan, Michael Edward. "Transient coherent effects in semiconductor three-state systems." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284302.

Full text

Abstract:

The coherent response of a semiconductor three-state system to one or two intense light pulses is investigated experimentally on a 100 fs time scale. Three experiments constitute this dissertation: observation of excitonic Rabi oscillations, measurement of two-exciton coupled Stark shifting, and an attempt to observe dark states. Basic concepts of time-resolved ultrafast semiconductor spectroscopy are explained, followed by an analysis of semiconductor two- and three-state systems. Pure two- and three-state dynamics are derived from first principles, followed by the development of the appropri

APA, Harvard, Vancouver, ISO, and other styles

50

Seu, Keoki A. "Static and ultrafast MOKE studies of exchange -biased cobalt systems." W&M ScholarWorks, 2006. https://scholarworks.wm.edu/etd/1539623503.

Full text

Abstract:

We have studied the exchange bias interaction in metal bilayers IrMn/Co and FeMn/Co using the static and ultrafast pump-probe Kerr effects. Experiments conducted on wedged Co samples show that the exchange bias interaction is sensitive to the buffer layers grown beneath it when the antiferromagnetic layer is FeMn. The exchange bias strength, as measured by the shift in the magnetic hysteresis loop, follows a 1/tFM dependence as reported in the literature. The time-domain pump-probe experiments reveal coherent magnetization oscillations, whose frequencies are comparable to those measured by fre

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!