429 citations · 2.1k across the 32 of their papers we have counts for
5 papers · 1 filter
Graphene-based Josephson junction microwave bolometer
Gil-Ho Lee, Dmitri K. Efetov, Woochan Jung +8
Sensitive microwave detectors are critical instruments in radioastronomy, dark matter axion searches, and superconducting quantum information science. The conventional strategy tow…
Coherent spin-transfer precession switching in orthogonal spin-torque devices
Graham E. Rowlands, Colm A. Ryan, Li Ye +4
We present experimental results and macrospin simulations of the switching characteristics of orthogonal spin-transfer devices incorporating an out-of-plane magnetized polarizing l…
Graphene-based Josephson junction single photon detector
Evan D. Walsh, Dmitri K. Efetov, Gil-Ho Lee +6
We propose to use graphene-based Josephson junctions (gJjs) to detect single photons in a wide electromagnetic spectrum from visible to radio frequencies. Our approach takes advant…
Reliable spin-transfer torque driven precessional magnetization reversal with an adiabatically decaying pulse
Daniele Pinna, Colm Ryan, Thomas Ohki +1
We show that a slowly decaying current pulse can lead to nearly deterministic precessional switching in the presence of noise. We consider a biaxial macrospin, with an easy axis in…
Development of high frequency and wide bandwidth Johnson noise thermometry
Jesse Crossno, Xiaomeng Liu, Thomas A. Ohki +2
We develop a high frequency, wide bandwidth radiometer operating at room temperature, which augments the traditional technique of Johnson noise thermometry for nanoscale thermal tr…