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Chebyshev matrix product state approach for spectral functions (2011)

Andreas Holzner, Andreas Weichselbaum, Ian P. McCulloch, Ulrich Schollwöck, and Jan von Delft

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2011-05-11

Beschreibung: Author(s): Andreas Holzner, Andreas Weichselbaum, Ian P. McCulloch, Ulrich Schollwöck, and Jan von Delft We show that recursively generated Chebyshev expansions offer numerically efficient representations for calculating zero-temperature spectral functions of one-dimensional lattice models using matrix product state (MPS) methods. The main features of this Chebyshev matrix product state (CheMPS) approa... [Phys. Rev. B 83, 195115] Published Tue May 10, 2011

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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Drumhead surface states and their signatures in quasiparticle scattering interference (2018)

Mehdi Biderang, Andreas Leonhardt, Nimisha Raghuvanshi, Andreas P. Schnyder, and Alireza Akbari

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-08-08

Beschreibung: Author(s): Mehdi Biderang, Andreas Leonhardt, Nimisha Raghuvanshi, Andreas P. Schnyder, and Alireza Akbari We consider a two-orbital tight-binding model defined on a layered three-dimensional hexagonal lattice to investigate the properties of topological nodal lines and their associated drumhead surface states. We examine these surface states in centrosymmetric systems, where the bulk nodal lines are of ... [Phys. Rev. B 98, 075115] Published Tue Aug 07, 2018

Schlagwort(e): Electronic structure and strongly correlated systems

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Thema: Physik

Publiziert von American Physical Society (APS)

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3

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Hyperscaling violation at the Ising-nematic quantum critical point in two-dimensional metals (2016)

Andreas Eberlein, Ipsita Mandal, and Subir Sachdev

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2016-07-26

Beschreibung: Author(s): Andreas Eberlein, Ipsita Mandal, and Subir Sachdev Understanding optical conductivity data in the optimally doped cuprates in the framework of quantum criticality requires a strongly coupled quantum critical metal which violates hyperscaling. In the simplest scaling framework, hyperscaling violation can be characterized by a single nonzero exponent … [Phys. Rev. B 94, 045133] Published Mon Jul 25, 2016

Schlagwort(e): Electronic structure and strongly correlated systems

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Thema: Physik

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4

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High photon energy spectroscopy of NiO: Experiment and theory (2016)

S. K. Panda, Banabir Pal, Suman Mandal, Mihaela Gorgoi, Shyamashis Das, Indranil Sarkar, Wolfgang Drube, Weiwei Sun, I. Di Marco, Andreas Lindblad, P. Thunström, A. Delin, Olof Karis, Y. O. Kvashnin, M. van Schilfgaarde, O. Eriksson, and D. D. Sarma

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2016-06-21

Beschreibung: Author(s): S. K. Panda, Banabir Pal, Suman Mandal, Mihaela Gorgoi, Shyamashis Das, Indranil Sarkar, Wolfgang Drube, Weiwei Sun, I. Di Marco, Andreas Lindblad, P. Thunström, A. Delin, Olof Karis, Y. O. Kvashnin, M. van Schilfgaarde, O. Eriksson, and D. D. Sarma We have revisited the valence band electronic structure of NiO by means of hard x-ray photoemission spectroscopy (HAXPES) together with theoretical calculations using both the GW method and the local density approximation + dynamical mean-field theory (LDA+DMFT) approaches. The effective impurity pr… [Phys. Rev. B 93, 235138] Published Mon Jun 20, 2016

Schlagwort(e): Electronic structure and strongly correlated systems

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Thema: Physik

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5

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Weak orbital ordering of Ir t_{2g} states in the double perovskite Sr_{2} CeIrO_{6} (2016)

Sudipta Kanungo, Kailash Mogare, Binghai Yan, Manfred Reehuis, Andreas Hoser, Claudia Felser, and Martin Jansen

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2016-06-28

Beschreibung: Author(s): Sudipta Kanungo, Kailash Mogare, Binghai Yan, Manfred Reehuis, Andreas Hoser, Claudia Felser, and Martin Jansen The electronic and magnetic properties of distorted monoclinic double perovskite Sr 2 CeIrO 6 were examined based on both experiments and first-principles density functional theory calculations. From the calculations we conclude that low-spin-state Ir 4 + ( 5 d 5 ) forms a rare weakly antiferromagnetic (AFM)… [Phys. Rev. B 93, 245148] Published Fri Jun 24, 2016

Schlagwort(e): Electronic structure and strongly correlated systems

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Thema: Physik

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6

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Plaquette order in the SU(6) Heisenberg model on the honeycomb lattice (2016)

Pierre Nataf, Miklós Lajkó, Philippe Corboz, Andreas M. Läuchli, Karlo Penc, and Frédéric Mila

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2016-05-28

Beschreibung: Author(s): Pierre Nataf, Miklós Lajkó, Philippe Corboz, Andreas M. Läuchli, Karlo Penc, and Frédéric Mila We revisit the SU(6) Heisenberg model on the honeycomb lattice, which has been predicted to be a chiral spin liquid by mean-field theory [G. Szirmai et al. , Phys. Rev. A 84 , 011611(R) (2011) ]. Using exact diagonalizations of finite clusters, infinite projected entangled pair state simulations, and … [Phys. Rev. B 93, 201113(R)] Published Thu May 26, 2016

Schlagwort(e): Electronic structure and strongly correlated systems

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Thema: Physik

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7

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Entropy perspective on the thermal crossover in a fermionic Hubbard chain (2013)

Lars Bonnes, Hannes Pichler, and Andreas M. Läuchli

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2013-10-03

Beschreibung: Author(s): Lars Bonnes, Hannes Pichler, and Andreas M. Läuchli We study the Renyi entropy in the finite-temperature crossover regime of a Hubbard chain using quantum Monte Carlo. The ground-state entropy has characteristic features such as a logarithmic divergence with block size and 2 k F oscillations that are a hallmark of its Luttinger liquid nature. The inter... [Phys. Rev. B 88, 155103] Published Wed Oct 02, 2013

Schlagwort(e): Electronic structure and strongly correlated systems

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Thema: Physik

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8

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Lattice distortion effects on topological phases in (LaNiO_{3})_{2}/(LaAlO_{3})_{N} heterostructures grown along the [111] direction (2013)

Andreas Rüegg, Chandrima Mitra, Alexander A. Demkov, and Gregory A. Fiete

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2013-10-01

Beschreibung: Author(s): Andreas Rüegg, Chandrima Mitra, Alexander A. Demkov, and Gregory A. Fiete We theoretically investigate the influence of lattice distortion effects on possible topological phases in (LaNiO 3 ) 2 /(LaAlO 3 ) N heterostructures grown along the [111] direction. At the Hartree-Fock level, topological phases originate from an interaction-generated effective spin-orbit coupling that op... [Phys. Rev. B 88, 115146] Published Mon Sep 30, 2013

Schlagwort(e): Electronic structure and strongly correlated systems

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9

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Weyl semimetal from spontaneous inversion symmetry breaking in pyrochlore oxides (2015)

Tomáš Bzdušek, Andreas Rüegg, and Manfred Sigrist

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-04-07

Beschreibung: Author(s): Tomáš Bzdušek, Andreas Rüegg, and Manfred Sigrist Most of the previously suggested scenarios for the realization of Weyl semimetal on a pyrochlore lattice require breaking of time-reversal symmetry. In this study the authors show that spontaneous deformations of the crystal that break the inversion symmetry can stabilize this phase as well. They demonstrate that in the temperature-elasticity phase diagram Weyl semimetal shows a reentrant behavior. [Phys. Rev. B 91, 165105] Published Mon Apr 06, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Scaling theory of the cuprate strange metals (2015)

Sean A. Hartnoll and Andreas Karch

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-04-18

Beschreibung: Author(s): Sean A. Hartnoll and Andreas Karch We show that the anomalous temperature scaling of five distinct transport quantities in the strange metal regime of the cuprate superconductors can be reproduced with only two nontrivial critical exponents. The quantities are (i) the electrical resistivity, (ii) the Hall angle, (iii) the Hall-Lorenz... [Phys. Rev. B 91, 155126] Published Fri Apr 17, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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