23 citations · 184 across the 26 of their papers we have counts for
26 papers
Modernization and Statistical Validation of a Multilayer TRIM.SP Code for Low-Energy Muon and Ion Implantation
Zaher Salman, Ryan M. L. McFadden, Thomas Prokscha
We describe the staged modernization of a local multilayer TRIM.SP implementation, denoted TRIM.SP-NL. The work included behavior-preserving refactoring, correction of localized bo…
Insight into SRF cavity performance from simulations of Nb's surface oxide dissolution and diffusion
Ryan M. L. McFadden, Rowan Becker, Tobias Junginger
We report simulations of the dissolution and diffusion of Nb's surface oxide layer in vacuum. While this chemical doping process is important for the surface preparation of Nb supe…
Contrasting impurity-induced magnetism and dynamics in 2H-MoTe2
Jonas A. Krieger, Igor P. Rusinov, Sourabh Barua +13
We investigate the behavior of interstitial Li implanted near the surface of 2H-MoTe using -detected NMR. We find that, unlike the muon, Li does not show any…
Niobium's intrinsic coherence length and penetration depth revisited using low-energy muon spin spectroscopy and secondary-ion mass spectrometry
Ryan M. L. McFadden, Jonathan W. Angle, Eric M. Lechner +7
We report direct, simultaneous measurements of the London penetration depth () and Bardeen-Cooper-Schrieffer (BCS) coherence length () in oxygen-doped niobium, with impur…
Implantation studies of low-energy positive muons in niobium thin films
Ryan M. L. McFadden, Andreas Suter, Leon Ruf +5
Here we study the range of keV positive muons implanted in NbO( nm)/Nb( nm)/SiO(300 nm)/Si [ = 3.6 nm, 3.3 nm; = 42.0 nm, 60.1 nm] thin films using l…
Lithium-ion dynamics in synthetic quartz studied via the NMR of implanted Li
W. Andrew MacFarlane, Ryan M. L. McFadden, Signy Spencer +11
We report -detected nuclear magnetic resonance (-NMR) measurements of implanted Li in a synthetic single crystal of -SiO (quartz). At 6.55 Tesla, the spect…