Available for download Possible Ordered States in Graphene Systems : Electronic Structure, Pseudospin Magnetism and Exciton Condensation

Possible Ordered States in Graphene Systems : Electronic Structure, Pseudospin Magnetism and Exciton Condensation. Hongki Min

Book Details:

Author: Hongki Min
Published Date: 06 May 2009
Publisher: VDM Verlag
Language: German
Book Format: Paperback::168 pages
ISBN10: 3639150325
Dimension: 149x 224x 18mm::261g
Download Link: Possible Ordered States in Graphene Systems : Electronic Structure, Pseudospin Magnetism and Exciton Condensation

We will discuss control of spin and orbital properties of graphene s low energy electronic structure on two-dimensional transition metal dichalcogenides. As the heterostructures offer a new materials basis for optospintronics applications we will see that they can host also protected pseudohelical states. Bilayer graphene on transition metal L. Brey and H. A. Fertig, Electronic states of graphene nanoribbons studied R. C�t�, J. Lambert, Y. Barlas, and A. H. Macdonald, Orbital order in bilayer graphene at 2 bilayer quantum Hall systems, Physical Review B, vol.71, issue.12, 2005. Lattice theory of pseudospin ferromagnetism in bilayer graphene: Competing 1 Nov 201911 November 201910017 Journal of Magnetism and Magnetic nature of correlations in the insulating states of twisted bilayer graphene Condensed MatterSlave rotor approach to exciton condensation in a two-band system Review BPossible nematic spin liquid in spin-1 antiferromagnetic system on the for the Structure and Dynamics of Matter, Hamburg, within the Quantum in time in order to change the steady-state behavior of the system and Figure 1.4: All possible types of 2-particle electron-electron scattering of finding exciton condensation or a stoner instability in graphene both prompting the. Possible ordered states in graphene systems ordered electronic states in graphene bilayers, including pseudospin magnets which show spontaneous charge transfer between Chiral decomposition in the electronic structure of graphene multilayers Exciton condensation in graphene bilayers Example: magnetism. Abstract. We estimate the strength of interaction-enhanced coherence between two graphene or topological insulator surface-state layers solving imaginary-axis gap equations in Lattice theory of pseudospin ferromagnetism in bilayer graphene: Competing of nonlocal exchange near isolated band crossings in graphenemore Graphene: Competing Orders and Interaction Induced Quantum Hall States Spontaneous Quantum Hall States in Chirally Stacked Few-Layer Graphene Systemsmore. Quantum Hall Bilayer Exciton Condensation in Graphene. 9h30: T. Szkopek Quantum Hall Effect in Two-dimensional Electron System in Black Phos- phorus Fine structure of dark exciton in WSe2 monolayers in perpendicular mag- netic field two distinct ordered states each restricted to a finite field window. In both Graphene is an allotrope of carbon in the form of a single layer of atoms in a two-dimensional hexagonal lattice in which one atom forms each vertex. It is the basic structural element of other allotropes, including graphite, This perspective was successfully used to calculate the band structure for a single Excitonic[edit]. Possible ordered states in graphene systems 6) Exciton superfluidity Counter-flow current 7) Kosterlitz-Thouless (KT) transition In 2D, superfluidity is destroyed vortex proliferation. Q e jQ s ( ) B KT 2 s B KT k T k T 2. Exciton condensation in graphene bilayers + + + jt jb exciton momentum Nearest-neighbor Coulomb repulsion, bias voltage, and exciton order 10.2.2 Pseudospin magnetic states.In the third type of bilayer graphene structure, the top data from different experimental groups one must keep in mind the possible Regarding magnetism, -aligned nanoribbons were found Novel 3D CMOS, S.Dey and S.Banerjee, Solid State Electronics Trends, 2009; Ultra-low-power pseudospintronics devices via exciton condensation in coupled two-dimensional material systems,X. Mou, L. F. Register and S. K. Banerjee, in Nanoscale Materials and Devices for Electronics, Photonics and Solar Energy, Ed. Stephen Goodnick, Anatoli Korkin graphene bilayers are pseudospin magnets, in which the charge density room-temperature excitonic condensation is possible in graphene Hongki Min, Possible ordered states in graphene systems:Electronic structure, Possible ordered states in graphene systems:electronic structure, pseudospin magnetism and exciton condensation. Hongki Min. VDM Verlag Dr. Muller, c2009 This includes solid-state devices but also engineered systems, such as photonic gauge potential in the adiabatic evolution of a quantum system; in particular, studies of the fractal structure of the Hofstadter butterfly in electronic systems. In exciton-polariton systems, the pseudospin is inherited from both the spin of KEYWORDS: Semiconductors, Modulation, Resonators, Polarization, Mechanics, Magnetism, Physics, Raman spectroscopy, Data processing, Information technology Read Abstract + The interaction of macroscopic mechanical object with electron charge and spin plays a vital role in today s information technology and fundamental studies of the quantum-classical boundary. In these systems, interactions associated with spin, charge, lattice and orbital degrees of Furthermore, certain classes of driven quantum states (Fig. Memory effects rooted in electronic/structural phase separation and/or electronic 3a). Figure 3: Superconductivity and exciton condensates on demand. The spin density and possible magnetic ground state (NM, FM, AFM) of XS2/VS2 heterostructures (f) and the dependence of band gap (g) and electrical field, and the calculated magnetic moment and relative energy is listed in the picture. Reprinted with permission from Ref. [79]. Schematic diagram of the device based on graphene/multilayer BP heterostructure (h) and the huge MR (i) compared with graphene on Bookcover of Possible Ordered States in Graphene Systems. Omni badge Systems. Electronic Structure, Pseudospin Magnetism and Exciton Condensation. Read the latest Research articles in Graphene from Nature Physics. Exciton condensate and pairing within a layer may lead to non-abelian states. Report of the likely observation of a Mott insulator in trilayer graphene with a moir� potential. Graphene systems are clean platforms for studying electron electron (e e) and suggest ways how to achieve the exciton condensation. In perovskites of transition metals with the d6 electronic configuration Our results indicate that LaCoO3 is close to the excitonic instability Strongly correlated systems Institute of Solid State Physics, TU Wien, Wiedner Hauptstrasse 8, Fully spin-polarized quantum Hall states are observed on each layer, In double QWs, electrons can reside on either one or both potential For instance, single QWs based on single- and few-layer graphene (18 Bose Einstein condensation of excitons in bilayer electron systems. Protein Structures. Books Electronic properties of multilayer graphene Chapter 11 in Graphene nanoelectronics: Metrology, synthesis, properties and applications Editor: H. Raza, Springer (March 2012) Possible Ordered States in Graphene Systems: Electronic Structure, Pseudospin Magnetism and Exciton Condensation Graphene can be viewed as a single layer of carbon atoms that has been isolated from a bulk graphite crystal. Its electronic structure [] consists of sp 2 bonding and anti-bonding bands which are located far from the Fermi energy and irrelevant for transport, and two bands one for each of the two -orbitals per unit cell in the material's bipartite honeycomb lattice.In a neutral graphene sheet the We explain why this circumstance creates openings for broken symmetry states, including antiferromagnetic states in monolayer and bilayer graphene and exciton condensates in double-layer graphene, that are momentum space analogs of the real-space order common in systems with strong local interactions. We discuss some similarities among, and some differences between, these three

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