Auflistung nach Schlagwort "Spin dynamics"

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  • Antiferromagnetic heisenberg spin chain of a few cold atoms in a one-dimensional trap 
    Murmann, S.; Deuretzbacher, Frank; Zürn, G.; Bjerlin, J.; Reimann, S.M.; Santos, Luis; Lompe, T.; Jochim, S. (College Park, MD : American Physical Society, 2015)
    We report on the deterministic preparation of antiferromagnetic Heisenberg spin chains consisting of up to four fermionic atoms in a one-dimensional trap. These chains are stabilized by strong repulsive interactions between ...
  • Improved Electrochemical Performance of Modified Mesocarbon Microbeads for Lithium-Ion Batteries Studied using Solid-State Nuclear Magnetic Resonance Spectroscopy 
    Bösebeck, Katharina; Chandran, C. Vinod; Licht, Björn K.; Binnewies, Michael; Heitjans, Paul (Weinheim : Wiley-VCH Verlag, 2016)
    Lithium-intercalating materials such as graphite are of great interest, especially for application in lithium-ion batteries. In this work we present an investigation of the electrochemical performance of mesocarbon microbeads ...
  • Influence of the particle number on the spin dynamics of ultracold atoms 
    Heinze, Jannes; Deuretzbacher, Frank; Pfannkuche, Daniela (College Park, MD : American Physical Society, 2010)
    We study the dependency of the quantum spin dynamics on the particle number in a system of ultracold spin-1 atoms within the single-spatial-mode approximation. We find, for all strengths of the spin-dependent interaction, ...
  • Interaction-induced spin polarization in quantum dots 
    Rogge, M.C.; Räsänen, E.; Haug, Rolf J. (College Park, MD : American Physical Society, 2010)
    The electronic states of lateral many-electron quantum dots in high magnetic fields are analyzed in terms of energy and spin. In a regime with two Landau levels in the dot, several Coulomb-blockade peaks are measured. A ...
  • Interplay of Electron and Nuclear Spin Noise in n -Type GaAs 
    Berski, Fabian; Hübner, Jens; Oestreich, Michael; Ludwig, Arne; Wieck, A.D.; Glazov, Mikhail (College Park, MD : American Physical Society, 2015)
    We present spin-noise spectroscopy measurements on an ensemble of donor-bound electrons in ultrapure GaAs:Si covering temporal dynamics over 6 orders of magnitude from milliseconds to nanoseconds. The spin-noise spectra ...
  • Laser manipulation of donor-bound electrons in ultra-pure 28Si:P 
    Sauter, Eduard Enrico (Hannover : Institutionelles Repositorium der Leibniz Unversität Hannover, 2022)
    Harnessing the quantum nature of donor atoms in silicon may pave the way for a quantum revolution in the modern digital information era. The idea to combine the exceptional spin coherence properties of donor electron spins ...
  • Molecular switching in iron complexes bridged via tin-cyanides observed by Mössbauer and ESR spectroscopy 
    Jung, S.; Renz, Franz; Klein, M.; Menzel, M.; Boča, R.; Stößer, R. (Bristol : IOP Publishing Ltd., 2010)
    The precursor [FeIII(L)Cl] (LH2 N,N'-bis(2'-hydroxy- 3'-X-benzyliden)-1,6-diamino-3-N-hexane) is a high-spin (S 5/2) complex (with X -CH3, -O-CH3). This precursor is combined with the bridging unit [SnIV(CN)4] to yield ...
  • Momentum distributions and numerical methods for strongly interacting one-dimensional spinor gases 
    Deuretzbacher, Frank; Becker, D.; Santos, Luis (College Park, MD : American Physical Society, 2016)
    One-dimensional spinor gases with strong δ interaction fermionize and form a spin chain. The spatial degrees of freedom of this atom chain can be described by a mapping to spinless noninteracting fermions and the spin ...
  • Physical and chemical induced spin crossover 
    Renz, Franz (Bristol : IOP Publishing Ltd., 2010)
    Physical spin crossover (spin transition), one of the most fascinating dynamic electronic structure phenomena occurring in coordination compounds of third row transition metal ions, mostly of iron(II), iron(III) and ...
  • Quantum magnetism without lattices in strongly interacting one-dimensional spinor gases 
    Deuretzbacher, Frank; Becker, D.; Bjerlin, J.; Reimann, S.M.; Santos, Luis (College Park, MD : American Physical Society, 2014)
    We show that strongly interacting multicomponent gases in one dimension realize an effective spin chain, offering an alternative simple scenario for the study of one-dimensional (1D) quantum magnetism in cold gases in the ...
  • Single-Atom Quantum Probes for Ultracold Gases Boosted by Nonequilibrium Spin Dynamics 
    Bouton, Quentin; Nettersheim, Jens; Adam, Daniel; Schmidt, Felix; Mayer, Daniel; Lausch, Tobias; Tiemann, Eberhard; Widera, Artur (College Park, MD : American Physical Society, 2020)
    Quantum probes are atomic sized devices mapping information of their environment to quantum-mechanical states. By improving measurements and at the same time minimizing perturbation of the environment, they form a central ...
  • Spin and mass excitations in the doped multiple spin exchange model on a triangular lattice: 3He on graphite 
    Seki, K.; Shirakawa, T.; Ohta, Y. (Bristol : IOP Publishing Ltd., 2009)
    Using an exact-diagonalization technique on small clusters, we calculate the spin and density excitation spectra as well as the temperature dependence of the specific heat for the triangular-lattice t-J model with the ...
  • Spin noise spectroscopy in GaAs (110) quantum wells: Access to intrinsic spin lifetimes and equilibrium electron dynamics 
    Müller, Georg M.; Römer, Michael; Schuh, Dieter; Wegscheider, Werner; Hübner, Jens; Oestreich, Michael (College Park, MD : American Physical Society, 2008)
    In this Letter, the first spin noise spectroscopy measurements in semiconductor systems of reduced effective dimensionality are reported. The nondemolition measurement technique gives access to the otherwise concealed ...
  • Spin-chain model for strongly interacting one-dimensional Bose-Fermi mixtures 
    Deuretzbacher, Frank; Becker, D.; Bjerlin, J.; Reimann, S.M.; Santos, Luis (College Park, MD : American Physical Society, 2017)
    Strongly interacting one-dimensional (1D) Bose-Fermi mixtures form a tunable XXZ spin chain. Within the spin-chain model developed here, all properties of these systems can be calculated from states representing the ordering ...
  • Theoretical study of the electronic states of hollandite vanadate K 2V8O16 
    Horiuchi, S.; Shirakawa, T.; Ohta, Y. (Bristol : IOP Publishing Ltd., 2009)
    Electronic states of hollandite vanadate K2V8O 16, a one-dimensional zigzag-chain system of t2g orbitals in a mixed valent state, are considered. We calculate the Madelung energies to determine the most stable charge-ordering ...