Paul Corbae
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View article: Altermagnetic Band Splitting in 10 nm Epitaxial CrSb Thin Films
Altermagnetic Band Splitting in 10 nm Epitaxial CrSb Thin Films Open
Altermagnets are a newly identified family of collinear antiferromagnets with a momentum‐dependent spin‐split band structure of non‐relativistic origin, derived from spin‐group symmetry‐protected crystal structures. Among candidate alterma…
View article: Hybridization gap approaching the two-dimensional limit of topological insulator Bi$_x$Sb$_{1-x}$
Hybridization gap approaching the two-dimensional limit of topological insulator Bi$_x$Sb$_{1-x}$ Open
Bismuth antimony alloys (Bi$_x$Sb$_{1-x}$) provide a tuneable materials platform to study topological transport and spin-polarized surface states resulting from the nontrivial bulk electronic structure. In the two-dimensional limit, it is …
View article: Determining the bulk and surface electronic structure of $α$-Sn/InSb(001) with spin- and angle-resolved photoemission spectroscopy
Determining the bulk and surface electronic structure of $α$-Sn/InSb(001) with spin- and angle-resolved photoemission spectroscopy Open
The surface and bulk states in topological materials have shown promise in many applications. Grey or $α$-Sn, the inversion symmetric analogue to HgTe, can exhibit a variety of these phases. However there is disagreement in both calculatio…
View article: Structural spillage: An efficient method to identify noncrystalline topological materials
Structural spillage: An efficient method to identify noncrystalline topological materials Open
While topological materials are not restricted to crystals, there is no\nefficient method to diagnose topology in non-crystalline solids such as\namorphous materials. Here we introduce the structural spillage, a new indicator\nthat predict…
View article: Disorder-driven localization and electron interactions in Bi$_x$TeI thin films
Disorder-driven localization and electron interactions in Bi$_x$TeI thin films Open
Strong disorder has a crucial effect on the electronic structure in quantum materials by increasing localization, interactions, and modifying the density of states. Bi$_x$TeI films grown at room temperature and \SI{230}{K} exhibit dramatic…
View article: Amorphous topological matter: Theory and experiment
Amorphous topological matter: Theory and experiment Open
Topological phases of matter are ubiquitous in crystals, but less is known about their existence in amorphous systems, that lack long-range order. We review the recent progress made on defining amorphous topological phases, their new pheno…
View article: Establishing Coherent Momentum-Space Electronic States in Locally Ordered Materials
Establishing Coherent Momentum-Space Electronic States in Locally Ordered Materials Open
In our understanding of solids, the formation of highly spatially coherent electronic states, fundamental to command the quantum behavior of materials, relies on the existence of discrete translational symmetry of the crystalline lattice. …
View article: Observation of spin-momentum locked surface states in amorphous Bi2Se3
Observation of spin-momentum locked surface states in amorphous Bi2Se3 Open
Crystalline symmetries have played a central role in the identification and understanding of quantum materials. Here we investigate whether an amorphous analogue of a well known three-dimensional strong topological insulator has topologica…
View article: Amorphous topological matter: theory and experiment
Amorphous topological matter: theory and experiment Open
Topological phases of matter are ubiquitous in crystals, but less is known about their existence in amorphous systems, that lack long-range order. In this perspective, we review the recent progress made on theoretically defining amorphous …
View article: Structural disorder-driven topological phase transition in noncentrosymmetric BiTeI
Structural disorder-driven topological phase transition in noncentrosymmetric BiTeI Open
In this work, we investigate using local structural disorder to induce a topologically nontrivial phase in a solid state system. Using first-principles calculations, we introduce structural disorder in the trivial insulator BiTeI and obser…
View article: Unexpected dependence of the anomalous Hall angle on the Hall conductivity in amorphous transition metal thin films
Unexpected dependence of the anomalous Hall angle on the Hall conductivity in amorphous transition metal thin films Open
The anomalous Hall effect (AHE), and magnetic and electronic transport properties were investigated in a series of amorphous transition metal thin films— FexSi –x, FexGe1-x, CoxGe1–x, CoxSi1–x, and Fe1–yCoySi. The experimental results are …
View article: Observation of spin-momentum locked surface states in amorphous Bi$_{2}$Se$_{3}$
Observation of spin-momentum locked surface states in amorphous Bi$_{2}$Se$_{3}$ Open
Crystalline symmetries have played a central role in the identification of topological materials. The use of symmetry indicators and band representations have enabled a classification scheme for crystalline topological materials, leading t…
View article: Rotational Symmetry Breaking in a Trigonal Superconductor Nb-doped Bi[subscript 2]Se[subscript 3]
Rotational Symmetry Breaking in a Trigonal Superconductor Nb-doped Bi[subscript 2]Se[subscript 3] Open
The search for unconventional superconductivity has been focused on materials with strong spin-orbit coupling and unique crystal lattices. Doped bismuth selenide (Bi[subscript 2]Se[subscript 3]) is a strong candidate, given the topological…
View article: Rotational Symmetry Breaking in a Trigonal superconductor Nb-doped Bi2Se3
Rotational Symmetry Breaking in a Trigonal superconductor Nb-doped Bi2Se3 Open
The search for unconventional superconductivity has been focused on materials with strong spin-orbit coupling and unique crystal lattices. Doped bismuth selenide (Bi$_2$Se$_3$) is a strong candidate given the topological insulator nature o…