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A. M. Cook
Researcher at University of Zurich
Publications - 35
Citations - 3503
A. M. Cook is an academic researcher from University of Zurich. The author has contributed to research in topics: Topological insulator & Bismuth. The author has an hindex of 16, co-authored 35 publications receiving 2574 citations. Previous affiliations of A. M. Cook include University of California, Berkeley & University of British Columbia.
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Journal ArticleDOI
Higher-Order Topological Insulators
Frank Schindler,A. M. Cook,Maia G. Vergniory,Maia G. Vergniory,Zhijun Wang,Stuart S. P. Parkin,B. Andrei Bernevig,B. Andrei Bernevig,B. Andrei Bernevig,Titus Neupert +9 more
TL;DR: The notion of three-dimensional topological insulators is extended to systems that host no gapless surface states but exhibit topologically protected gapless hinge states and it is shown that SnTe as well as surface-modified Bi2TeI, BiSe, and BiTe are helical higher-order topology insulators.
Journal ArticleDOI
Higher-order topological insulators.
Frank Schindler,A. M. Cook,Maia G. Vergniory,Maia G. Vergniory,Zhijun Wang,Stuart S. P. Parkin,B. Andrei Bernevig,B. Andrei Bernevig,B. Andrei Bernevig,Titus Neupert +9 more
TL;DR: In this paper, the authors extend the notion of three-dimensional topological insulators to systems that host no gapless surface states but exhibit topologically protected gapless hinge states.
Journal ArticleDOI
Higher-Order Topology in Bismuth
Frank Schindler,Zhijun Wang,Maia G. Vergniory,Maia G. Vergniory,Maia G. Vergniory,A. M. Cook,Anil Murani,Shamashis Sengupta,A. Kasumov,Richard Deblock,Sangjun Jeon,Ilya Drozdov,Hélène Bouchiat,Sophie Guéron,Ali Yazdani,B. Andrei Bernevig,Titus Neupert +16 more
TL;DR: In this paper, the electronic structure of bismuth, an element consistently described as bulk topologically trivial, is in fact topological and follows a generalized bulkboundary correspondence of higher-order: not the surfaces of the crystal, but its hinges host topologically protected conducting modes.
Journal ArticleDOI
Higher-Order Topology in Bismuth.
Frank Schindler,Zhijun Wang,Maia G. Vergniory,Maia G. Vergniory,Maia G. Vergniory,A. M. Cook,Anil Murani,Shamashis Sengupta,A. Kasumov,Richard Deblock,Sangjun Jeon,Ilya Drozdov,Hélène Bouchiat,Sophie Guéron,Ali Yazdani,B. Andrei Bernevig,Titus Neupert +16 more
TL;DR: It is established that the electronic structure of bismuth, an element consistently described as bulk topologically trivial, is in fact topological and follows a generalized bulk–boundary correspondence of higher-order: not the surfaces of the crystal, but its hinges host topologically protected conducting modes.
Journal ArticleDOI
Majorana fermions in a topological-insulator nanowire proximity-coupled to an s -wave superconductor
A. M. Cook,Marcel Franz +1 more
TL;DR: In this article, a finite-length topological insulator nanowire, proximity-coupled to an ordinary bulk $s$-wave superconductor and subject to a longitudinal applied magnetic field, is shown to realize a one-dimensional topological superconductor with unpaired Majorana fermions localized at both ends.