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TOPO-NW SIGNED

VISUALIZATION OF TOPOLGICAL STATES IN PRISTINE NANOWIRES

Total Cost €

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EC-Contrib. €

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Partnership

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 TOPO-NW project word cloud

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

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Project "TOPO-NW" data sheet

The following table provides information about the project.

Coordinator
WEIZMANN INSTITUTE OF SCIENCE 

Organization address
address: HERZL STREET 234
city: REHOVOT
postcode: 7610001
website: www.weizmann.ac.il

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
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 Coordinator Country Israel [IL]
 Total cost 1˙750˙000 €
 EC max contribution 1˙750˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-STG
 Funding Scheme ERC-STG
 Starting year 2016
 Duration (year-month-day) from 2016-01-01   to  2020-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    WEIZMANN INSTITUTE OF SCIENCE IL (REHOVOT) coordinator 1˙750˙000.00

Map

 Project objective

Topological phases of matter have been at the center of intense scientific research. Over the past decade this has led to the discovery of dozens of topological materials with exotic boundary states. In three dimensional topological phases, scanning tunneling microscopy (STM) has been instrumental in unveiling the unusual properties of these surface states. This success, however, did not encompass lower dimensional topological systems. The main reason is surface contamination which is disruptive both for STM and for the fragile electronic states. We propose to study topological states of matter in pristine epitaxial nanowires by combining growth, fabrication and STM, all in a single modular ultra-high vacuum space. This platform will uniquely allow us to observe well anticipated topological phenomena in one dimension such as the Majorana end-modes in semiconducting nanowires. On a broader view, the nanowire configuration intertwines dimensionality and geometry with topology giving rise to novel topological systems with high tunability. A vivid instance is given by topological crystalline insulator nanowires in which the topological symmetry protection can be broken by a variety of perturbations. We will selectively tune the surface states band structure and study the local response of massless and massive surface Dirac electrons. Tunability provides a higher degree of control. We will utilize this to realize topological nanowire-based electronic and spintronic devices such as a Z2 pump and spin-based Mach-Zehnder interferometer for Dirac electrons. The low dimensionality of the nanowire alongside various singularities in the electronic spectra of different topological phases enhance interaction effects, serving as a cradle for novel correlated topological states. This new paradigm of topological nanowires will allow us to elucidate deep notions in topological matter as well as to explore new concepts and novel states, thus providing ample experimental prospects.

 Publications

year authors and title journal last update
List of publications.
2018 Jung-Hyun Kang, Filip Krizek, Magdalena Zaluska-Kotur, Peter Krogstrup, Perla Kacman, Haim Beidenkopf, Hadas Shtrikman
Au-Assisted Substrate-Faceting for Inclined Nanowire Growth
published pages: 4115-4122, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.8b00853
Nano Letters 18/7 2019-06-05
2016 I. C. Fulga, N. Avraham, H. Beidenkopf, A. Stern
Coupled-layer description of topological crystalline insulators
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.94.125405
Physical Review B 94/12 2019-06-05
2018 Nurit Avraham, Jonathan Reiner, Abhay Kumar-Nayak, Noam Morali, Rajib Batabyal, Binghai Yan, Haim Beidenkopf
Quasiparticle Interference Studies of Quantum Materials
published pages: 1707628, ISSN: 0935-9648, DOI: 10.1002/adma.201707628
Advanced Materials 2019-06-05
2017 Jung-Hyun Kang, Anna Grivnin, Ella Bor, Jonathan Reiner, Nurit Avraham, Yuval Ronen, Yonatan Cohen, Perla Kacman, Hadas Shtrikman, Haim Beidenkopf
Robust Epitaxial Al Coating of Reclined InAs Nanowires
published pages: 7520-7527, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.7b03444
Nano Letters 17/12 2019-06-05
2017 Jonathan Reiner, Abhay Kumar Nayak, Nurit Avraham, Andrew Norris, Binghai Yan, Ion Cosma Fulga, Jung-Hyun Kang, Toesten Karzig, Hadas Shtrikman, Haim Beidenkopf
Hot Electrons Regain Coherence in Semiconducting Nanowires
published pages: , ISSN: 2160-3308, DOI: 10.1103/PhysRevX.7.021016
Physical Review X 7/2 2019-06-19
2016 R. Batabyal, N. Morali, N. Avraham, Y. Sun, M. Schmidt, C. Felser, A. Stern, B. Yan, H. Beidenkopf
Visualizing weakly bound surface Fermi arcs and their correspondence to bulk Weyl fermions
published pages: e1600709-e160070, ISSN: 2375-2548, DOI: 10.1126/sciadv.1600709
Science Advances 2/8 2019-06-19

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