135 citations · 444 across the 10 of their papers we have counts for
10 papers
Superparamagnetic and Stochastic-Write Magnetic Tunnel Junctions for High-Speed True Random Number Generation in Advanced Computing
Jonathan Z. Sun, Christopher Safranski, Siyuranga Koswata +2
We review two magnetic tunnel junction (MTJ) approaches for compact, low-power, CMOS-integrated true random number generation (TRNG). The first employs passive-read, easy-plane sup…
Easy-plane spin Hall oscillator
Eric Arturo Montoya, Amanatullah Khan, Christopher Safranski +2
Spin Hall oscillators (SHOs) based on bilayers of a ferromagnet (FM) and a non-magnetic heavy metal (HM) are electrically tunable nanoscale microwave signal generators. Achieving h…
A Perspective on Electrical Generation of Spin Current for Magnetic Random Access Memories
Christopher Safranski, Jonathan Z. Sun, Andrew D. Kent
Spin currents are used to write information in magnetic random access memory (MRAM) devices by switching the magnetization direction of one of the ferromagnetic electrodes of a mag…
Demonstration of nanosecond operation in stochastic magnetic tunnel junctions
Christopher Safranski, Jan Kaiser, Philip Trouilloud +3
Magnetic tunnel junctions operating in the superparamagnetic regime are promising devices in the field of probabilistic computing, which is suitable for applications like high-dime…
Planar Hall driven torque in a FM/NM/FM system
Christopher Safranski, Jun-Wen Xu, Andrew D. Kent +1
An important goal of spintronics is to covert a charge current into a spin current with a controlled spin polarization that can exert torques on an adjacent magnetic layer. Here we…
Thermally driven two-magnet nano-oscillator with large spin-charge conversion
Bassim Arkook, Christopher Safranski, Rodolfo Rodriguez +8
Next-generation spintronic applications require material properties that can be hardly met by one material candidate. Here we demonstrate that by combining insulating and metallic…
Interface moment dynamics and its contribution to spin-transfer torque switching process in magnetic tunnel junctions
Christopher Safranski, Jonathan Z. Sun
A practical problem for memory applications involving perpendicularly magnetized magnetic tunnel junctions is the reliability of switching characteristics at high-bias voltage. Oft…
Planar Hall torque
C. Safranski, E. A. Montoya, I. N. Krivorotov
Spin-orbit torques in bilayers of ferromagnetic and nonmagnetic materials hold promise for energy efficient switching of magnetization in nonvolatile magnetic memories. Previously…
Magnetic phase transitions in Ta/CoFeB/MgO multilayers
I. Barsukov, Yu Fu, C. Safranski +8
We study thin films and magnetic tunnel junction nanopillars based on Ta/CoFeB/MgO multilayers by electrical transport and magnetometry measurements. These mea…
Angular dependence of superconductivity in superconductor / spin valve heterostructures
Alejandro A. Jara, Christopher Safranski, Ilya N. Krivorotov +4
We report measurements of the superconducting transition temperature, , in CoO/Co/Cu/Co/Nb multilayers as a function of the angle between the magnetic moments of the Co la…