Professional Education


  • Master of Science, Hebrew University Of Jerusalem (2012)
  • Bachelor of Science, Hebrew University Of Jerusalem (2009)
  • Doctor of Philosophy, Weizmann Institute Of Science (2017)

All Publications


  • Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Lederer, S., Schattner, Y., Berg, E., Kivelson, S. A. 2017; 114 (19): 4905-4910

    Abstract

    Using determinantal quantum Monte Carlo, we compute the properties of a lattice model with spin [Formula: see text] itinerant electrons tuned through a quantum phase transition to an Ising nematic phase. The nematic fluctuations induce superconductivity with a broad dome in the superconducting [Formula: see text] enclosing the nematic quantum critical point. For temperatures above [Formula: see text], we see strikingly non-Fermi liquid behavior, including a "nodal-antinodal dichotomy" reminiscent of that seen in several transition metal oxides. In addition, the critical fluctuations have a strong effect on the low-frequency optical conductivity, resulting in behavior consistent with "bad metal" phenomenology.

    View details for DOI 10.1073/pnas.1620651114

    View details for Web of Science ID 000400818400034

    View details for PubMedID 28439023

  • Ising Nematic Quantum Critical Point in a Metal: A Monte Carlo Study PHYSICAL REVIEW X Schattner, Y., Lederer, S., Kivelson, S. A., Berg, E. 2016; 6 (3)
  • Enhancement of Superconductivity near a Nematic Quantum Critical Point PHYSICAL REVIEW LETTERS Lederer, S., Schattner, Y., Berg, E., Kivelson, S. A. 2015; 114 (9)

    Abstract

    We consider a low T_{c} metallic superconductor weakly coupled to the soft fluctuations associated with proximity to a nematic quantum critical point (NQCP). We show that (1) a BCS-Eliashberg treatment remains valid outside of a parametrically narrow interval about the NQCP, (2) the symmetry of the superconducting state (d wave, s wave, p wave) is typically determined by the noncritical interactions, but T_{c} is enhanced by the nematic fluctuations in all channels, and (3) in 2D, this enhancement grows upon approach to criticality up to the point at which the weak coupling approach breaks down, but in 3D, the enhancement is much weaker.

    View details for DOI 10.1103/PhysRevLett.114.097001

    View details for Web of Science ID 000351000300008

    View details for PubMedID 25793842