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Dirac materials

- T. Wehling, A. Black‐Schaffer, A. Balatsky
- Physics
- 2 January 2014

A wide range of materials, like d-wave superconductors, graphene, and topological insulators, share a fundamental similarity: their low-energy fermionic excitations behave as massless Dirac particles… Expand

Resonating Valence Bonds and Mean-Field d-Wave Superconductivity in Graphite

- A. Black‐Schaffer, S. Doniach
- Physics
- 6 December 2006

We investigate the possibility of inducing superconductivity in a graphite layer by electronic correlation effects. We use a phenomenological microscopic Hamiltonian which includes nearest neighbor… Expand

RKKY coupling in graphene

- A. Black‐Schaffer
- Physics
- 22 January 2010

We study the carrier-mediated exchange interaction, the so-called RKKY coupling, between two magnetic moments in graphene using exact diagonalization on the honeycomb lattice. By using the… Expand

Chiral d-wave superconductivity in doped graphene.

- A. Black‐Schaffer, C. Honerkamp
- PhysicsJournal of physics. Condensed matter : an…
- 31 May 2014

TLDR

Wilson loop approach to fragile topology of split elementary band representations and topological crystalline insulators with time-reversal symmetry

- Adrien Bouhon, A. Black‐Schaffer, Robert-Jan Slager
- PhysicsPhysical Review B
- 26 April 2018

We present a general methodology toward the systematic characterization of crystalline topological insulating phases with time-reversal symmetry. In particular, taking the two-dimensional spinful h… Expand

Odd-Frequency Superconductivity in Sr_{2}RuO_{4} Measured by Kerr Rotation.

- L. Komendová, A. Black‐Schaffer
- PhysicsPhysical review letters
- 10 February 2017

TLDR

Wilson loop approach to topological crystalline insulators with time reversal symmetry

- Adrien Bouhon, A. Black‐Schaffer, Robert-Jan Slager
- Mathematics
- 25 April 2018

We present a general methodology to systematically characterize crystalline topological insulating phases with time reversal symmetry (TRS). In particular, we study windings of Wilson loop spectra… Expand

Self-consistent solution for proximity effect and Josephson current in ballistic graphene SNS Josephson junctions

- A. Black‐Schaffer, S. Doniach
- Physics
- 25 March 2008

We use a tight-binding Bogoliubov\char21{}de Gennes (BdG) formalism to self-consistently calculate the proximity effect, Josephson current, and local density of states in ballistic graphene… Expand

Odd-frequency superconducting pairing and subgap density of states at the edge of a two-dimensional topological insulator without magnetism

- Jorge Cayao, A. Black‐Schaffer
- Physics
- 26 July 2017

We investigate the emergence and consequences of odd-frequency spin-triplet s-wave pairing in superconducting hybrid junctions at the edge of a two-dimensional topological insulator without any mag… Expand

Strongly anharmonic current-phase relation in ballistic graphene Josephson junctions

- A. Black‐Schaffer, J. Linder
- Physics
- 16 August 2010

Motivated by a recent experiment directly measuring the current-phase relation (CPR) in graphene under the influence of a superconducting proximity effect, we here study the temperature dependence of… Expand

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