Structure and formation mechanisms in tantalum and niobium oxides in superconducting quantum circuits

JS Oh, R Zaman, AA Murthy, M Bal, F Crisa, S Zhu… - ACS …, 2024 - ACS Publications
Improving the qubit's lifetime (T1) is crucial for fault-tolerant quantum computing. Recent
advancements have shown that replacing niobium (Nb) with tantalum (Ta) as the base metal …

Nano & AI: A Nobel Partnership

X Chen, JM Buriak, M Salanne, H Xin - ACS nano, 2024 - ACS Publications
This year's Nobel Prizes in Physics 1 and Chemistry 2 were both awarded to
groundbreaking discoveries linked with artificial intelligence (AI). The selection of awardees …

Atomic resolution scanning transmission electron microscopy at liquid helium temperatures for quantum materials

J Mun, D Potemkin, H Jang, S Park, S Mick, C Petrovic… - Ultramicroscopy, 2024 - Elsevier
Fundamental quantum phenomena in condensed matter, ranging from correlated electron
systems to quantum information processors, manifest their emergent characteristics and …

Hexagonal Ta2O5 (10 1‾ 0) single-crystalline films grown on LaAlO3 (010) substrates by MOCVD

X Ma, Y Li, Y Le, B Zhang - Materials Science in Semiconductor Processing, 2024 - Elsevier
Single-crystalline hexagonal tantalum pentoxide (δ-Ta 2 O 5) films were grown on LaAlO 3
(010) substrates by MOCVD. A high substrate temperature of 840° C was required to …

Comparative S/TEM study of superconducting Ta quantum resonators by wet and dry etching types

J Mun, C Zhou, K Kisslinger, M Liu, Y Zhu - Applied Physics Letters, 2024 - pubs.aip.org
Superconducting resonators play a pivotal role in various quantum technology applications,
such as quantum computing and high-frequency communication systems. The performance …