Journal: The European Physical Journal B

Abbreviation

Eur. Phys. J. B

Publisher

Springer

Journal Volumes

ISSN

1434-6028
1434-6036

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Publications 1 - 10 of 99
  • Charge dynamics of the spin-density-wave state in BaFe2As2
    Item type: Journal Article
    Pfuner, F.; Analytis, J.G.; Chu, J.-H.; et al. (2009)
    The European Physical Journal B
  • The semiconductor-to-ferromagnetic-metal transition in FeSb2
    Item type: Journal Article
    Lukoyanov, A. V.; Mazurenko, V. V.; Anisimov, V. I.; et al. (2006)
    The European Physical Journal B
  • Spurious trend switching phenomena in financial markets
    Item type: Journal Article
    Filimonov, V.; Sornette, Didier (2012)
    The European Physical Journal B
  • Neutron diffraction study of the magnetic structure of Na2RuO4
    Item type: Journal Article
    Mogare, Kailash M.; Sheptyakov, Denis V.; Bircher, Roland; et al. (2006)
    The European Physical Journal B
    Nuclear and magnetic structures of sodium ruthenate (VI) have been studied by neutron powder diffraction in the temperature range 1.5–200 K. Na2RuO4 crystallizes in the monoclinic structure, with space group P 21/c. The structure consists of apical corner sharing RuO5 trigonal bipyramids forming infinite chains running along the b axis. These infinite [ RuO3O2/2] chains form a pseudo hexagonal close packing of rods with Ru–Ru distances of 3.51 Å within the chains and 5.30–5.47 Å between the chains. At TN=37.2 K a magnetic transition leads to an antiferromagnetic state. The Ru6+ magnetic moments are ordered antiferromagnetically along the chains (b-axis), while the inter-chain interaction is ferromagnetic. A classical infinite chain model was fitted to the magnetic susceptibility data in order to estimate the strength of the nearest-neighbor exchange interactions along and between the chains, resulting in an intrachain coupling parameter of 2J=-86 K, and an interchain parameter J⊥ with |2J⊥ | = 3 K.
  • Magnetization plateaux and jumps in a class of frustrated ladders
    Item type: Journal Article
    Honecker, A.; Mila, F.; Troyer, M. (2000)
    The European Physical Journal B
  • Influence of a random telegraph process on the transport through a point contact
    Item type: Journal Article
    Hassler, F.; Lesovik, G.B.; Blatter, G. (2011)
    The European Physical Journal B
  • Percolation limited magnetic order in Eu1-xCaxB6
    Item type: Journal Article
    Wigger, G.A.; Felder, E.; Weller, M.; et al. (2005)
    The European Physical Journal B
  • Number of closed-channel molecules in the BEC-BCS crossover
    Item type: Journal Article
    Werner, F.; Tarruell, L.; Castin, Y. (2009)
    The European Physical Journal B
  • The Boson peak of model glass systems and its relation to atomic structure
    Item type: Journal Article
    Derlet, P.M.; Maass, R.; Löffler, Jörg F. (2012)
    The European Physical Journal B
  • Heat current characteristics in nanojunctions with superconducting baths
    Item type: Journal Article
    Oettinger, David; Chitra, R.; Restrepo, Juliana (2014)
    The European Physical Journal B
    As a fundamental requisite for thermotronics, controlling heat flow has been a longstanding quest in solid state physics. Recently, there has been a lot of interest in nanoscale hybrid systems as possible candidates for thermal devices. In this context, we study the heat current in the simplest hybrid device of a two level system weakly coupled to two heat baths. We use the reduced density matrix approach together with a simple Born-Markov approximation to calculate the heat current in the steady state. We consider different kinds of reservoirs and show that the nature of the reservoir plays a very important role in determining the thermal characteristics of the device. In particular, we investigate the effectiveness of a conventional superconductor as a reservoir with regard to manipulating the heat current. In the emergent temperature characteristics, we find that superconductivity in the reservoirs leads to enhanced thermal currents and that the superconducting phase transition is clearly visible in the heat current. We observe negative differential thermal conductance and a pronounced rectification of the heat current, making this a good building block for a quantum thermal diode.
Publications 1 - 10 of 99