62 citations · 258 across the 12 of their papers we have counts for
12 papers
Magnetic-Field and Temperature Limits of a Kinetic-Inductance Traveling-Wave Parametric Amplifier
Lucas M. Janssen, Farzad Faramarzi, Henry G. LeDuc +5
Kinetic-inductance traveling-wave parametric amplifiers (KI-TWPAs) offer broadband near-quantum-limited amplification with high saturation power. Due to the high critical magnetic…
Formation of Mn-rich interfacial phases in Co2FexMn1-xSi thin films
Ka Ming Law, Arashdeep S. Thind, Mihir Pendharkar +7
We report the formation of Mn-rich regions at the interface of Co2FexMn1-xSi thin films grown on GaAs substrates by molecular beam epitaxy (MBE). Scanning transmission electron mic…
Machine Learning for Continuous Quantum Error Correction on Superconducting Qubits
Ian Convy, Haoran Liao, Song Zhang +5
Continuous quantum error correction has been found to have certain advantages over discrete quantum error correction, such as a reduction in hardware resources and the elimination…
Room Temperature Magnetic Order in Air-Stable Ultra-Thin Iron Oxide
Jiangtan Yuan, Andrew Balk, Hua Guo +6
Certain two-dimensional (2D) materials exhibit intriguing properties such as valley polarization, ferroelectricity, superconductivity and charge-density waves. Many of these materi…
Spin injection and detection up to room temperature in Heusler~alloy/-GaAs spin valves
T. A. Peterson, S. J. Patel, C. C. Geppert +7
We have measured the spin injection efficiency and spin lifetime in CoFeSi/-GaAs lateral nonlocal spin valves from 20 to 300 K. We observe large (40 V) spin valve s…
Observation of a topologically non-trivial surface state in half-Heusler PtLuSb (001) thin films
J. A. Logan, S. J. Patel, S. D. Harrington +6
The discovery of topological insulators (TIs), materials with bulk band gaps and protected cross-gap surface states, in compounds such as Bi2Se3 has generated much interest in iden…
Surface reconstructions and transport of epitaxial PtLuSb (001) thin films grown by MBE
S. J. Patel, J. A. Logan, S. D. Harrington +2
This work presents the surface reconstructions and transport properties of the topological insulator PtLuSb grown on Al0.1In0.9Sb/GaAs (001). Two stable surface reconstructions, (1…
Anisotropic spin relaxation in -GaAs from strong inhomogeneous hyperfine fields produced by the dynamical polarization of nuclei
N. J. Harmon, T. A. Peterson, C. C. Geppert +4
The hyperfine field from dynamically polarized nuclei in n-GaAs is very spatially inhomogeneous, as the nu- clear polarization process is most efficient near the randomly-distribut…
Dynamic detection of electron spin accumulation in ferromagnet-semiconductor devices by ferromagnetic resonance
Changjiang Liu, Sahil J. Patel, Timothy A. Peterson +4
A distinguishing feature of spin accumulation in ferromagnet-semiconductor devices is precession of the non-equilibrium spin population of the semiconductor in a magnetic field. Th…
Electrical detection of ferromagnetic resonance in ferromagnet/n-GaAs heterostructures by tunneling anisotropic magnetoresistance
Changjiang Liu, Yakov Boyko, Chad Geppert +5
We observe a dc voltage peak at ferromagnetic resonance (FMR) in samples consisting of a single ferromagnetic (FM) layer grown epitaxially on the GaAs (001) surface. T…
Knight shift and nuclear spin relaxation in Fe/n-GaAs heterostructures
Kevin D. Christie, Chad C. Geppert, Sahil J. Patel +3
We investigate the dynamically polarized nuclear-spin system in Fe/\emph{n}-GaAs heterostructures using the response of the electron-spin system to nuclear magnetic resonance (NMR)…
Electromotive Force Generated by Spin Accumulation in FM/-GaAs Heterostructures
Chad C. Geppert, Lee R. Wienkes, Kevin D. Christie +3
We report on a method of quantifying spin accumulation in CoMnSi/-GaAs and Fe/-GaAs heterostructures using a non-magnetic probe. In the presence of a large non-equilibr…