280 citations · 897 across the 17 of their papers we have counts for
17 papers
RF surface resistance tuning of superconducting niobium via thermal diffusion of native oxide
Eric Lechner, Jonathan Angle, Fred Stevie +3
Recently, Nb superconducting radio frequency cavities vacuum heat treated between 300-400 C for a few hours have exhibited very high quality factors (~5x10^10 at 2.0 K). New second…
Advances in secondary ion mass spectroscopy
Jonathan Angle, Ari Palczewski, Charles E. Reece +2
Accurate SIMS measurement of nitrogen in niobium relies on the use of closely equivalent standards, made by ion implantation, to convert nitrogen signal intensity to nitrogen conte…
Direct spectroscopic evidence for mixed-valence Tl in the low carrier-density superconductor PbTlTe
P. Walmsley, C. Liu, A. D. Palczewski +4
Upon doping with Tl the narrow band-gap semiconductor PbTe exhibits anomalously high temperature superconductivity despite a very low carrier density as well as signatures of the K…
Cryogenic rf test of the first plasma etched SRF cavity
J. Upadhyay, A. Palczewski, S. Popović +4
Plasma etching has a potential to be an alternative processing technology for superconducting radio frequency (SRF) cavities. An apparatus and a method are developed for plasma etc…
Characterization of superconducting RF breakdown by two-mode excitation
G. Eremeev, A. D. Palczewski
We show that thermal and magnetic contributions to the breakdown of superconductivity in radiofrequency (RF) fields can be separated by applying two RF modes simultaneously to a su…
Collapse of the Fermi surface and fingerprints of order in the pseudogap state of cuprate superconductors
Takeshi Kondo, Ari Palczewski, Yoichiro Hamaya +6
The Fermi surface in the state of cuprates is highly unusual because it appears to consist of disconnected segments called arcs. Their very existence challenges the traditional con…