activity
20162026
most citedIonic and electronic properties of the topological insulator BiTeSe investigated using -detected nuclear magnetic relaxation and resonance of Li

14 citations · 103 across the 17 of their papers we have counts for

collaborators

17 papers

cond-mat.mtrl-sci2026

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…

cond-mat.mtrl-sci2025★ 3 cited

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…

cond-mat.supr-con2024★ 3 cited

Depth-resolved Characterization of Meissner Screening Breakdown in Surface Treated Niobium

Edward Thoeng, Md. Asaduzzaman, Philipp Kolb +12

We report direct measurements of the magnetic field screening at the limits of the Meissner phase for two superconducting Nb samples. The samples are processed with two different s…

cond-mat.mtrl-sci2023★ 1 cited

Ion-Implanted Li Nuclear Magnetic Resonance in Highly Oriented Pyrolytic Graphite

John O. Ticknor, Jonah R. Adelman, Aris Chatzichristos +13

We report -detected nuclear magnetic resonance of ultra-dilute Li implanted in highly oriented pyrolytic graphite (HOPG). The absence of motional narrowing and diffu…

cond-mat.mtrl-sci2022★ 12 cited

A New High Parallel-Field Spectrometer at TRIUMF's -NMR Facility

Edward Thoeng, Ryan M. L. McFadden, Suresh Saminathan +16

A new high field spectrometer has been built to extend the capabilities of the -detected nuclear magnetic resonance (-NMR) facility at TRIUMF. This new beamline extension all…

physics.ins-det2022★ 4 cited

The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF

Ryohei Matsumiya, Hiroaki Akatsuka, Chris P. Bidinosti +45

The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration aims at a precision neutron electric dipole moment (nEDM) measurement with an uncertainty of $10^{-27}\,e\cdot\mathrm{c…

cond-mat.mtrl-sci2021★ 8 cited

Nuclear magnetic resonance of ion implanted Li in ZnO

Jonah R. Adelman, Derek Fujimoto, Martin H. Dehn +14

We report on the stability and magnetic state of ion implanted Li in single crystals of the semiconductor ZnO using -detected nuclear magnetic resonance. At ultradilute conc…

cond-mat.str-el2021★ 5 cited

Evolution of the metallic state of LaNiO/LaAlO superlattices measured by Li -detected NMR

V. L. Karner, A. Chatzichristos, D. L. Cortie +13

Using ion-implanted Li -detected NMR, we study the evolution of the correlated metallic state of LaNiO in a series of LaNiO/LaAlO superlattices as a function of…

cond-mat.soft2020★ 8 cited

Energy barriers and cooperative motion at the surface of freestanding glassy polystyrene films

Derek Fujimoto, W. Andrew MacFarlane, Joerg Rottler

We investigate the near-surface relaxation of freestanding atactic \glsdesc{ps} films with molecular dynamics simulations. As in previous coarse-grained simulations, relaxation tim…

physics.data-an2020★ 3 cited

Digging Into MUD With Python: mudpy, bdata, and bfit

Derek Fujimoto

Used to store the results of SR measurements at TRIUMF, the Muon Data (MUD) file format serves as a useful and flexible scheme that is both lightweight and self-describing. The…

cond-mat.mtrl-sci2019★ 12 cited

Local electronic and magnetic properties of the doped topological insulators BiSe:Ca and BiTe:Mn investigated using ion-implanted Li -NMR

Ryan M. L. McFadden, Aris Chatzichristos, David L. Cortie +13

We report -detected nuclear magnetic resonance (-NMR) measurements in BiSe:Ca (BSC) and BiTe:Mn (BTM) single crystals using Li implanted t…

cond-mat.mtrl-sci2019★ 5 cited

Investigation of Ionic and Anomalous Magnetic Behavior in CrSe Using Li -NMR

John O. Ticknor, Izumi Umegaki, Ryan M. L. McFadden +12

We have studied a mosaic of 1T-CrSe single crystals using -detected nuclear magnetic resonance of Li from 4 to 300 K. We identify two broad resonances that show no evi…

cond-mat.soft2019★ 9 cited

The dynamics of liquid 1-ethyl-3-methylimidazolium acetate measured with implanted-ion Li -NMR

Derek Fujimoto, Ryan M. L. McFadden, Martin H. Dehn +14

We demonstrate the application of implanted-ion -detected NMR as a probe of ionic liquid molecular dynamics through the measurement of Li spin-lattice relaxation (SLR) and r…

cond-mat.str-el2019★ 11 cited

Local Metallic and Structural Properties of the Strongly Correlated Metal LaNiO using Li -NMR

Victoria L. Karner, Aris Chatzichristos, David L. Cortie +19

We report -detected NMR of ion-implanted Li in a single crystal and thin film of the strongly correlated metal LaNiO. In both samples, spin-lattice relaxation measur…

cond-mat.mtrl-sci2018★ 5 cited

Bi-Arrhenius diffusion and surface trapping of Li in rutile TiO

A. Chatzichristos, R. M. L. McFadden, M. H. Dehn +11

We report measurements of the diffusion rate of isolated ion-implanted Li within 120 nm of the surface of oriented single-crystal rutile TiO using a radiotrac…

cond-mat.mtrl-sci2018★ 14 cited

Ionic and electronic properties of the topological insulator BiTeSe investigated using -detected nuclear magnetic relaxation and resonance of Li

Ryan M. L. McFadden, Aris Chatzichristos, Kim H. Chow +16

We report measurements on the high temperature ionic and low temperature electronic properties of the 3D topological insulator BiTeSe using ion-implanted Li -detecte…

physics.ins-det2016

Characterization of the Aging and Excess Noise of a Hamamatsu Fine Mesh Photopentode

D. Fujimoto, C. Hearty

The excess noise factor and the aging characteristics of 16 Hamamatsu R11283 photopentodes have been tested. These fine-mesh phototubes are to be paired with pure CsI scintillation…