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Novel topological phases of matter: From topological invariants to experiments

Total Cost €


EC-Contrib. €






 NovelTopo project word cloud

Explore the words cloud of the NovelTopo project. It provides you a very rough idea of what is the project "NovelTopo" about.

exotic    unpaired    special    bismuth    phases    insulator    last    zero    breakthroughs    feasibility    topological    weyl    fractionalized    fermions    decade    superconductivity    edge    signatures    superconductor    insulators    experiments    vortex    elemental    materials    candidates    experimentally    invariant    realization    taas    dimensional    interfaced    structure    crystalline    parafermions    helical    experiment    first    joint    existence    combine    photovoltaic    resembling    guidance    modes    revolution    semimetal    serve    coupled    host    semimetals    exploited    inas    wells    unusual    theoretical    realize    discovery    effort    majorana    performed    fractional    edges    realizing    manipulation    lattice    effect    theory    spintronics    liquid    photogalvanic    experimental    ground    quantum    vortices    snte    realistic    carriers    gasb    surface    proposing    trivial    input    platform    analyze    josephson    guarantees    remarkable    manipulate    character    interacting    platforms    setups    dislocations    hall    besides   

Project "NovelTopo" data sheet

The following table provides information about the project.


Organization address
city: OXFORD
postcode: OX1 2JD

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Project website
 Total cost 195˙454 €
 EC max contribution 195˙454 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-09-01   to  2019-02-16


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Topological phases are exotic states of quantum matter characterized by a topological invariant of their ground state that guarantees the existence of unusual surface or edge modes with many special properties. In the last decade, the discovery of topological insulators has lead to a revolution in this field, in a remarkable joint effort between theory and experiment. Besides realizing a novel phase of matter, these materials can be exploited for many applications like in spintronics, and can serve as a platform to realize even more exotic phases like topological superconductivity and Majorana fermions. In this project, we combine the input of very recent experimental breakthroughs with theoretical guidance to propose realistic setups to characterize and manipulate these phases.

First, we will study novel platforms for the realization and manipulation of Majorana fermions. We will study how elemental Bismuth, a trivial and well studied semimetal, may host them in vortices when interfaced with a superconductor. We will then evaluate how to manipulate them when they are coupled in a vortex lattice, proposing the use of vortex dislocations as the carriers of unpaired modes. Then we will propose topological insulator edges as platforms to study fractionalized Majorana zero modes, known as parafermions. We will analyze current experiments in strongly interacting InAs/GaSb quantum wells, evaluating the feasibility of a fractional Josephson effect. We will also propose the edges of two dimensional topological crystalline insulators such as SnTe as candidates for the formation of a fractionalized helical liquid resembling fractional quantum Hall edges. Finally, we will propose how the topological character of Weyl semimetals such as TaAs can be observed experimentally via the photogalvanic effect. A general analysis of the topological structure of photovoltaic responses will be performed to identify further robust signatures of other topological phases.


year authors and title journal last update
List of publications.
2017 Fernando de Juan, Adolfo G. Grushin, Takahiro Morimoto, Joel E Moore
Quantized circular photogalvanic effect in Weyl semimetals
published pages: 15995, ISSN: 2041-1723, DOI: 10.1038/ncomms15995
Nature Communications 8 2019-07-25
2017 Luca Chirolli, Fernando de Juan, Francisco Guinea
Time-reversal and rotation symmetry breaking superconductivity in Dirac materials
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.95.201110
Physical Review B 95/20 2019-07-25
2018 Felix Flicker, Fernando de Juan, Barry Bradlyn, Takahiro Morimoto, Maia G. Vergniory, Adolfo G. Grushin
Chiral optical response of multifold fermions
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.155145
Physical Review B 98/15 2019-07-25
2018 Anffany Chen, R. Ilan, F. de Juan, D. I. Pikulin, M. Franz
Quantum Holography in a Graphene Flake with an Irregular Boundary
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.121.036403
Physical Review Letters 121/3 2019-07-25
2018 Fernando de Juan, Jens Bardarson, Roni Ilan
Conditions for fully gapped topological superconductivity in topological insulator nanowires
published pages: , ISSN: , DOI:
2018 Niels B. M. Schröter, Ding Pei, Maia G. Vergniory, Yan Sun, Kaustuv Manna, Fernando de Juan, Jonas. A. Krieger, Vicky Süss, Marcus Schmidt, Pavel Dudin, Barry Bradlyn, Timur K. Kim, Thorsten Schmitt, Cephise Cacho, Claudia Felser, Vladimir N. Strocov, Yulin Chen
Topological Semimetal in a Chiral Crystal with Large Chern Numbers, Multifold Band Crossings, and Long Fermi-arcs
published pages: , ISSN: , DOI:
2019 J. -R. Soh, F. de Juan, M. G. Vergniory, N. B. M. Schröter, M. C. Rahn, D. Y. Yan, M. Bristow, P. A. Reiss, J. N. Blandy, Y. F. Guo, Y. G. Shi, T. K. Kim, A. McCollam, S. H. Simon, Y. Chen, A. I. Coldea, A. T. Boothroyd
An ideal Weyl semimetal induced by magnetic exchange
published pages: , ISSN: , DOI:

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