Dissipationless topological channels for information transfer and quantum metrology

Deliverables

Design rules critical operational parameters and testing schemes for primary quantum resistance standards

Technology opportunities for topological phononic devices
Topological transport of phonons

Report on the transport of phonons via topologically protected edge and interface states both for few and 100s GHz phonons and a benchmarking of photon emission and transport between edge states and topologically trivial waveguides Progress towards lossless and robust transport will be presented

Synthesis of single-crystal and monolayer magnetic TMDCs

Report on the synthesis and relevant characterizations of 1T TMDCs and on the innovations in the technology to fabricate the devices The report will assess the magnetic response in terms of the type and density of doping and defect concentration

Growth of doped-(Bi,Sb)2Te3 and (Bi,Sb)2Te3/FMI heterostructures

Report on the developments related the growth and characterization (structural, electrical, magnetic). The report will assess the performance in terms of the stability of the ferromagnetic phase and the observed QAHE. It will include the fabrication protocols to reduce the contact resistance.

Topological photonic waveguides

Report on the propagation loss lengths in waveguides with topologically protected photonic modes The advantages of such a system over topologically trivial waveguides will be discussed and key areas for optimization of topological photonic waveguides will be identified

Design of topological waveguides

Layout and report of the designs of topological waveguides for photons, phonons and combination of the two. The report will focus on design features that limit propagation losses, and create hybrid photon-phonon systems, including those where both are topologically protected and where topological photonic waveguides overlap with phononic bandgaps. Layouts for fabrication (dxf files) will be included. These designs will provide input to Task 1.4 in WP1 for device fabrication. The report will also include fabrication details.

Communication tools

Communication tools, project identity, website, logo.

Publications

Absence of Magnetic Proximity Effect at the Interface of Bi 2 Se

Author(s): A. I. Figueroa, F. Bonell, M. G. Cuxart, M. Valvidares, P. Gargiani, G. van der Laan, A. Mugarza, S. O. Valenzuela
Published in: Physical Review Letters, Issue 125/22, 2020, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.125.226801

Dynamical photon–photon interaction mediated by a quantum emitter

Author(s): Hanna Le Jeannic; Alexey Tiranov; Jacques Carolan; Tomás Ramos; Ying Wang; Martin Hayhurst Appel; Sven Scholz; Andreas D. Wieck; Arne Ludwig; Nir Rotenberg; Leonardo Midolo; Juan José García-Ripoll; Anders S. Sørensen; Peter Lodahl
Published in: Nature Physics, Issue 18, 2022, Page(s) 1191–1195, ISSN 1745-2473
Publisher: Nature Publishing Group
DOI: 10.1038/s41567-022-01720-x

Brillouin scattering selection rules in polarization-sensitive photonic resonators

Author(s): A. Rodriguez*, P. Priya*, E. Cardozo de Oliveira, L. Le Gratiet, I. Sagnes, M. Morassi, A. Lemaître, F. Pastier, L. Lanco, M. Esmann, N. D. Lanzillotti-Kimura
Published in: ACS Photonics, Issue 10, 2023, Page(s) 1687, ISSN 2330-4022
Publisher: American Chemical Society
DOI: 10.1021/acsphotonics.3c00186

Control of spin–charge conversion in van der Waals heterostructures

Author(s): R. Galceran, B. Tian, J. Li, F. Bonell, M. Jamet, C. Vergnaud, A. Marty, J. H. García, J. F. Sierra, M. V. Costache, S. Roche, S. O. Valenzuela, A. Manchon, X. Zhang, U. Schwingenschlögl
Published in: APL Materials, Issue 9, 2021, Page(s) 100901, ISSN 2166-532X
Publisher: AIP Publishing
DOI: 10.1063/5.0054865

Negligible thermal contributions to the spin pumping signal in ferromagnetic metal–platinum bilayers

Author(s): Paul Noël, Maxen Cosset-Cheneau, Victor Haspot, Vincent Maurel, Christian Lombard, Manuel Bibes, Agnès Barthelemy, Laurent Vila, Jean-Philippe Attané
Published in: Journal of Applied Physics, Issue 127/16, 2020, Page(s) 163907, ISSN 0021-8979
Publisher: American Institute of Physics
DOI: 10.1063/5.0004614

Metamagnetism of Weakly Coupled Antiferromagnetic Topological Insulators

Author(s): Aoyu Tan, Valentin Labracherie, Narayan Kunchur, Anja U. B. Wolter, Joaquin Cornejo, Joseph Dufouleur, Bernd Büchner, Anna Isaeva, Romain Giraud
Published in: Physical Review Letters, Issue 124/19, 2020, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.124.197201

On-demand source of dual-rail photon pairs based on chiral interaction in a nanophotonic waveguide

Author(s): F. T. Østfeldt, E. M. González-Ruiz, N. Hauff, Y. Wang, A. D. Wieck, A. Ludwig, R. Schott, L. Midolo, A. S. Sørensen, R. Uppu, and P. Lodahl
Published in: PRX Quantum, Issue 3, 2022, Page(s) 020363, ISSN 2691-3399
Publisher: APS
DOI: 10.1103/prxquantum.3.020363

The 2021 quantum materials roadmap

Author(s): Feliciano Giustino, Jin Hong Lee, Felix Trier, Manuel Bibes, Stephen M Winter, Roser Valentí, Young-Woo Son, Louis Taillefer, Christoph Heil, Adriana I Figueroa, Bernard Plaçais, QuanSheng Wu, Oleg V Yazyev, Erik P A M Bakkers, Jesper Nygård, Pol Forn-Díaz, Silvano De Franceschi, J W McIver, L E F Foa Torres, Tony Low, Anshuman Kumar, Regina Galceran, Sergio O Valenzuela, Marius V Costache, Au
Published in: Journal of Physics: Materials, Issue 3/4, 2020, Page(s) 042006, ISSN 2515-7639
Publisher: Journal of Physics: Materials
DOI: 10.1088/2515-7639/abb74e

Integrated Whispering-Gallery-Mode Resonator for Solid-State Coherent Quantum Photonics

Author(s): Arianne Brooks; Xiao-Liu Chu; Zhe Liu; Rüdiger Schott; Arne Ludwig; Andreas D. Wieck; Leonardo Midolo; Peter Lodahl; Nir Rotenberg
Published in: Nano Letters, Issue 21, 2021, Page(s) 8707–8714, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.1c02818

Antiferromagnetic order in MnBi2Te4 films grown on Si(1 1 1) by molecular beam epitaxy

Author(s): N. Liu, S. Schreyeck, K.M. Fijalkowski, M. Kamp, K. Brunner, C. Gould, L.W. Molenkamp
Published in: Journal of Crystal Growth, Issue 591, 2022, Page(s) 12667, ISSN 0022-0248
Publisher: Elsevier BV
DOI: 10.1016/j.jcrysgro.2022.126677

Quantum anomalous Hall edge channels survive up to the Curie temperature

Author(s): K. M. Fijalkowski, N. Liu, P. Mandal, S. Schreyeck, K. Brunner, C. Gould, L. W. Molenkamp
Published in: Nature Communications, Issue 12, 2021, Page(s) 5599, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-021-25912-w

Hinge Spin Polarization in Magnetic Topological Insulators Revealed by Resistance Switch

Author(s): Pablo M. Perez-Piskunow, Stephan Roche
Published in: Physical Review Letters, Issue 126/16, 2021, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.126.167701

Chiral quantum optics in broken-symmetry and topological photonic crystal waveguides

Author(s): Hauff, N., Hughes, S., Jeannic, H. L., Lodahl, P., & Rotenberg, N
Published in: Phys. Rev. Res., Issue 4, 2022, Page(s) 023082, ISSN 2643-1564
Publisher: APS
DOI: 10.1103/physrevresearch.4.023082

Direct Deposition of (BixSb1–x)2Te3 Nanosheets on Si/SiO2 Substrates by Chemical Vapor Transport

Author(s): Hansen, R. Fucke, T. Charvin, S. Froeschke, D. Wolf, R. Giraud, J. Dufouleur, N. Gräßler, B. Büchner, P. Schmidt, and S. Hampel,
Published in: Cryst. Growth Des, Issue 22, 2022, Page(s) 2354, ISSN 1528-7483
Publisher: American Chemical Society
DOI: 10.1021/acs.cgd.1c01446

Independent Electrical Control of Two Quantum Dots Coupled through a Photonic-Crystal Waveguide

Author(s): Xiao-Liu Chu, Camille Papon, Nikolai Bart, Andreas D. Wieck, Arne Ludwig, Leonardo Midolo, Nir Rotenberg, and Peter Lodahl
Published in: Physical Review Letters, Issue 131, 2023, Page(s) 033606, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.131.033606

Fiber-integrated microcavities for efficient generation of coherent acoustic phonons

Author(s): O. Ortiz, F. Pastier, A. Rodriguez, Priya, A. Lemaitre, C. Gomez-Carbonell, I. Sagnes, A. Harouri, P. Senellart, V. Giesz, M. Esmann, N. D. Lanzillotti-Kimura
Published in: Applied Physics Letters, Issue 117/18, 2020, Page(s) 183102, ISSN 0003-6951
Publisher: American Institute of Physics
DOI: 10.1063/5.0026959

Engineering nanoscale hypersonic phonon transport

Author(s): O. Florez, G. Arregui, M. Albrechtsen, R. C. Ng, J. Gomis-Bresco, S. Stobbe, C. M. Sotomayor Torres and P. D. Garcia
Published in: Nature Nano, Issue 17, 2022, Page(s) 947, ISSN 1748-3387
Publisher: Nature Publishing Group
DOI: 10.1038/s41565-022-01178-1

Computation of topological phase diagram of disordered Pb 1 − x Sn x Te

Author(s): Dániel Varjas, Michel Fruchart, Anton R. Akhmerov, Pablo M. Perez-Piskunow
Published in: Physical Review Research, Issue 2/1, 2020, ISSN 2643-1564
Publisher: Physical Review Research
DOI: 10.1103/physrevresearch.2.013229

Electrical control of spin-polarized topological currents in monolayer WTe2.

Author(s): J. H. Garcia, J. You, M. García-Mota, P. Koval, P. Ordejon, R. Cuadrado, M. J. Verstraete, Z. Zanolli, S. Roche
Published in: Phys. Rev. B, Issue 106, 2022, Page(s) L161410, ISSN 2469-9969
Publisher: APS
DOI: 10.1103/physrevb.106.l161410

Resolving spin currents and spin densities generated by charge-spin interconversion in systems with reduced crystal symmetry

Author(s): Camosi, Lorenzo; Camosi, Lorenzo; Světlík, Josef; Světlík, Josef; Costache, Marius V.; Costache, Marius V.; Savero Torres, Williams; Savero Torres, Williams; Fernández Aguirre, Iván; Fernández Aguirre, Iván; Marinova, Vera; Dimitrov, Dimitre; Gospodinov, Marin; Sierra, Juan F.; Valenzuela, Sergio O.
Published in: 2D Materials, Issue 9, 2022, Page(s) 035014, ISSN 2053-1583
Publisher: IOP
DOI: 10.1088/2053-1583/ac6fec

Milliwatt terahertz harmonic generation from topological insulator metamaterials

Author(s): Klaas-Jan Tielrooij; Alessandro Principi; David Saleta Reig; Alexander Block; Sebin Varghese; Steffen Schreyeck; Karl Brunner; Grzegorz Karczewski; Igor Ilyakov; Oleksiy Ponomaryov; Thales V. A. G. de Oliveira; Min Chen; Jan-Christoph Deinert; Carmen Gomez Carbonell; Sergio O. Valenzuela; Laurens W. Molenkamp; Tobias Kiessling; Georgy V. Astakhov; Sergey Kovalev
Published in: Light: Science and Applications, Issue 11, 2022, Page(s) 315, ISSN 2047-7538
Publisher: Nature Publishing Group
DOI: 10.1038/s41377-022-01008-y

Fiber-based angular filtering for high-resolution Brillouin spectroscopy in the 20-300 GHz frequency range

Author(s): A. Rodriguez, P. Priya, O. Ortiz, P. Senellart, C. Gomez-Carbonell, A. Lemaître, M. Esmann, N. D. Lanzillotti-Kimura
Published in: Optics Express, Issue 29/2, 2021, Page(s) 2637, ISSN 1094-4087
Publisher: Optical Society of America
DOI: 10.1364/oe.415228

Anisotropic optical response of WTe2 single crystals studied by ellipsometric analysis

Author(s): Krastyo Buchkov, Rosen Todorov, Penka Terziyska Marin Gospodinov, Velichka Strijkova, Dimitre Dimitrov and Vera Marinova
Published in: Nanomaterials, Issue 11, 2021, Page(s) 2262, ISSN 2079-4991
Publisher: MDPI
DOI: 10.3390/nano11092262

Molecular Approach for Engineering Interfacial Interactions in Magnetic/Topological Insulator Heterostructures

Author(s): Marc G. Cuxart, Miguel Angel Valbuena, Roberto Robles, César Moreno, Frédéric Bonell, Guillaume Sauthier, Inhar Imaz, Heng Xu, Corneliu Nistor, Alessandro Barla, Pierluigi Gargiani, Manuel Valvidares, Daniel Maspoch, Pietro Gambardella, Sergio O. Valenzuela, Aitor Mugarza
Published in: ACS Nano, Issue 14/5, 2020, Page(s) 6285-6294, ISSN 1936-0851
Publisher: American Chemical Society
DOI: 10.1021/acsnano.0c02498

Magnetic order in 3D topological insulators—Wishful thinking or gateway to emergent quantum effects?

Author(s): A. I. Figueroa, T. Hesjedal, N.-J. Steinke
Published in: Applied Physics Letters, Issue 117/15, 2020, Page(s) 150502, ISSN 0003-6951
Publisher: American Institute of Physics
DOI: 10.1063/5.0027987

Macroscopic Quantum Tunneling of a Topological Ferromagnet

Author(s): K. M. Fijalkowski, N. Liu, P. Mandal, S. Schreyeck, K. Brunner, C. Gould, L. W. Molenkamp
Published in: Adv. Science, Issue 10, 2023, Page(s) 2303165, ISSN 2198-3844
Publisher: Wiley_VCH
DOI: 10.1002/advs.202303165

Van der Waals heterostructures for spintronics and opto-spintronics

Author(s): J. F. Sierra, J. Fabian, R. K. Kawakami, St. Roche, S. O. Valenzuela
Published in: Nature Nano, Issue 16, 2021, Page(s) 856, ISSN 1748-3387
Publisher: Nature Publishing Group
DOI: 10.1038/s41565-021-00936-x

High-temperature intrinsic quantum anomalous Hall effect in rare Earth monohalide

Author(s): Menghao Wu
Published in: 2D Materials, Issue 4/2, 2017, Page(s) 021014, ISSN 2053-1583
Publisher: Under Review
DOI: 10.1088/2053-1583/aa5c63

Canted Persistent Spin Texture and Quantum Spin Hall Effect in WTe 2

Author(s): Jose H. Garcia, Marc Vila, Chuang-Han Hsu, Xavier Waintal, Vitor M. Pereira, Stephan Roche
Published in: Physical Review Letters, Issue 125/25, 2020, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.125.256603

Topological optical and phononic interface mode by simultaneous band inversion

Author(s): O. Ortiz, P. Priya, A. Rodriguez, A. Lemaitre, M. Esmann, N. D. Lanzillotti-Kimura
Published in: Optica, Issue 8/5, 2021, Page(s) 598, ISSN 2334-2536
Publisher: Optica
DOI: 10.1364/optica.411945

Any axion insulator must be a bulk three-dimensional topological insulator

Author(s): K. M. Fijalkowski, N. Liu, M. Hartl, M. Winnerlein, P. Mandal, A. Coschizza, A. Fothergill, S. Grauer, S. Schreyeck, K. Brunner, M. Greiter, R. Thomale, C. Gould, L. W. Molenkamp
Published in: Physical Review B, Issue 103/23, 2021, ISSN 2469-9950
Publisher: Physical Review
DOI: 10.1103/physrevb.103.235111

Quantifying the Robustness of Topological Slow Light

Author(s): Guillermo Arregui, Jordi Gomis-Bresco, Clivia M. Sotomayor-Torres, Pedro David Garcia
Published in: Physical Review Letters, Issue 126/2, 2021, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.126.027403

Coherent generation and detection of acoustic phonons in topological nanocavities

Author(s): G. Arregui, O. Ortíz, M. Esmann, C. M. Sotomayor-Torres, C. Gomez-Carbonell, O. Mauguin, B. Perrin, A. Lemaître, P. D. García, N. D. Lanzillotti-Kimura
Published in: APL Photonics, Issue 4/3, 2019, Page(s) 030805, ISSN 2378-0967
Publisher: American Institute of Physics
DOI: 10.1063/1.5082728

Valley-polarized quantum anomalous Hall phase in bilayer graphene with layer-dependent proximity effects

Author(s): Marc Vila; Jose H. Garcia; Stephan Roche; Stephan Roche
Published in: Phys Rev B, Issue 104, 2021, Page(s) L16113, ISSN 1550-235X
Publisher: APS
DOI: 10.1103/physrevb.104.l161113

Bilinear Magnetoresistance in HgTe Topological Insulator: Opposite Signs at Opposite Surfaces Demonstrated by Gate Control

Author(s): Y. Fu, J. Li, J. Papin, P. Noël, S. Teresi, M. Cosset-Chéneau, C. Grezes, T. Guillet, C. Thomas, Y.-M. Niquet, P. Ballet, T. Meunier, J-P. Attané, A. Fert, and L. Vila
Published in: Nano Lett., Issue 22, 2022, Page(s) 7867, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.2c02585

Subradiant states for two imperfect quantum emitters coupled by a nanophotonic waveguide

Author(s): Xiao-Liu Chu; Vasiliki Angelopoulou; Peter Lodahl; Nir Rotenberg
Published in: Physical Review A, Issue 106, 2022, Page(s) 053702, ISSN 2469-9926
Publisher: American Physical Society
DOI: 10.1103/physreva.106.053702

Experimental demonstration of a magnetically induced warping transition in a topological insulator mediated by rare-earth surface dopants

Author(s): Beatriz Muñiz Cano; Yago Ferreiros; Pierre A. Pantaleón; Ji Dai; Massimo Tallarida; Adriana I. Figueroa; Vera Marinova; Kevin García-Díez; Aitor Mugarza; Sergio O. Valenzuela; Rodolfo Miranda; Julio Camarero; Francisco Guinea; Jose Angel Silva-Guillén; Miguel A. Valbuena
Published in: Nano Lett., Issue 23, 2023, Page(s) 6249, ISSN 1530-6992
Publisher: ACS
DOI: 10.1021/acs.nanolett.3c00587

Low-symmetry topological materials for large charge-to-spin interconversion: The case of transition metal dichalcogenide monolayers.

Author(s): M. Vila, C.-H. Hsu, J. H. Garcia, L A. Benítez, X. Waintal, S. O Valenzuela, V. M. Pereira, S. Roche
Published in: Phys. Rev. Res., Issue 3, 2021, Page(s) 043230, ISSN 2643-1564
Publisher: APS
DOI: 10.1103/physrevresearch.3.043230

Valley-Polarized Quantum Anomalous Hall Phase in Bilayer Graphene with Layer-Dependent Proximity Effects

Author(s): M. Vila, J. H. Garcia, S. Roche
Published in: 2021
Publisher: -

Quantum anomalous Hall edge channels survive up to the Curie temperature

Author(s): K. M. Fijalkowski, N. Liu, P. Mandal, S. Schreyeck, K. Brunner, C. Gould, L. W. Molenkamp
Published in: Nature Communications, 2021
Publisher: Nature Communications (under review)

Meta-magnetism of weakly-coupled antiferromagnetic topological insulators

Author(s): Aoyu Tan, Valentin Labracherie, Narayan Kunchur, Anja U.B. Wolter, Joaquin Cornejo, Joseph Dufouleur, Bernd Büchner, Anna Isaeva, Romain Giraud
Published in: Physical Review Letters, 2020
Publisher: Physical Review Letters

Absence of magnetic-proximity effect at the interface of Bi2Se3 and (Bi,Sb)2Te3 with EuS

Author(s): A. I. Figueroa, F. Bonell, M. G. Cuxart, M. Valvidares, G. van der Laan, A. Mugarza, and S. O. Valenzuela.
Published in: Physical Review Letters, 2020
Publisher: Physical Review Letters

Computation of topological phase diagram of disordered Pb1−xSnxTe using the kernel polynomial method

Author(s): D. Varjas, M. Fruchart, A. R. Akhmerov, and P. M. Perez-Piskunow
Published in: Physical Review Research., 2020
Publisher: APS

Hybrid kernel polynomial method

Author(s): A. Akhmerov, M. Irfan, P. M. Perez-Piskunow, D. Varjas and M. Wimmer
Published in: SciPost, 2020
Publisher: SciPost

Charge-to-Spin Interconversion in Low-Symmetry Topological Materials

Author(s): M. Vila, C.-H. Hsu, J. H Garcia, L A. Benítez, X. Waintal, S. O Valenzuela, V. M Pereira, S. Roche
Published in: 2020
Publisher: -
DOI: 10.21203/rs.3.rs-124172/v1

Chiral Anomaly Trapped in Weyl Metals: Nonequilibrium Valley Polarization at Zero Magnetic Field

Author(s): P. M. Perez-Piskunow, N Bovenzi, AR Akhmerov, M Breitkreiz
Published in: 2021
Publisher: -

Anisotropic optical response of WTe2 single crystals studied by ellipsometric analysis

Author(s): K. Buchkov, R.Todorov, P. Terziyska M. Gospodinov, V. Strijkova, D. Dimitrov and V. Marinova
Published in: 2021
Publisher: Under review

Electromechanical Brillouin Scattering, in: Brillouin Scattering

Author(s): H. Li, O. Florez, B. Pan, G. Madiot, C. M. Sotomayor Torres and M. Li
Published in: Semiconductors and Semimetals, Issue 110, 2022, Page(s) 287, ISBN 978-0-323-98931-2
Publisher: Elsevier
DOI: 10.1016/bs.semsem.2022.05.007

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