131 citations · 258 across the 7 of their papers we have counts for
7 papers
Probing Coordination Environments in Buried Oxides of Aluminum Josephson Junctions by Resonant X-ray Reflectivity
Paul Corbae, Alex Abelson, Shivani Srivastava +16
Decoherence remains a critical obstacle to achieving high-fidelity, scalable superconducting qubits, with the tunnel barrier of Josephson junctions a key source of loss. Here we ap…
Superconducting qubit decoherence correlated with detected radiation events
A. R. Castelli, K. M. Beck, L. D. H. Alegria +6
Most quantum error correction (QEC) protocols for superconducting qubits assume spatially and temporally uncorrelated decoherence events; however, recent evidence suggests that cos…
Growth and Structure of alpha-Ta films for Quantum Circuit Integration
Loren D. Alegria, Alex Abelson, Eunjeong Kim +5
Tantalum films incorporated into superconducting circuits have exhibited low surface losses, resulting in long-lived qubit states. Remaining loss pathways originate in microscopic…
Two-Level Systems in Nucleated and Non-Nucleated Epitaxial alpha-Tantalum films
L. D. Alegria, D. M. Tennant, K. R. Chaves +4
Building usefully coherent superconducting quantum processors depends on reducing losses in their constituent materials. Tantalum, like niobium, has proven utility as the primary s…
Large anomalous Hall effect in ferromagnetic insulator-topological insulator heterostructures
L. D. Alegria, H. Ji, N. Yao +3
We demonstrate the van der Waals epitaxy of the topological insulator compound Bi2Te3 on the ferromagnetic insulator Cr2Ge2Te6. The layers are oriented with (001) of Bi2Te3 paralle…
Controlled MOCVD growth of Bi2Se3 topological insulator nanoribbons
L. D. Alegria, J. R. Petta
Topological insulators are a new class of materials that support topologically protected electronic surface states. Potential applications of the surface states in low dissipation…
Structural and Electrical Characterization of Bi2Se3 Nanostructures Grown by Metalorganic Chemical Vapor Deposition
L. D. Alegria, M. D. Schroer, A. Chatterjee +4
We characterize nanostructures of Bi2Se3 that are grown via metalorganic chemical vapor deposition using the precursors diethyl selenium and trimethyl bismuth. By adjusting growth…