80 citations · 208 across the 9 of their papers we have counts for
7 papers · 1 filter
Vertically Graded Fe-Ni Alloys with Low Damping and a Sizeable Spin-Orbit Torque
Rachel E. Maizel, Shuang Wu, Purnima P. Balakrishnan +13
Energy-efficient spintronic devices require a large spin-orbit torque (SOT) and low damping to excite magnetic precession. In conventional devices with heavy-metal/ferromagnet bila…
Suppression of Spin Pumping at Metal Interfaces
Youngmin Lim, Bhuwan Nepal, David A. Smith +15
An electrically conductive metal typically transmits or absorbs a spin current. Here, we report on evidence that interfacing two metal thin films can suppress spin transmission and…
Magnetic Damping in Epitaxial Fe Alloyed with Vanadium and Aluminum
David A. Smith, Anish Rai, Youngmin Lim +12
To develop low-moment, low-damping metallic ferromagnets for power-efficient spintronic devices, it is crucial to understand how magnetic relaxation is impacted by the addition of…
Dephasing of Transverse Spin Current in Ferrimagnetic Alloys
Youngmin Lim, Behrouz Khodadadi, Jie-Fang Li +3
It has been predicted that transverse spin current can propagate coherently (without dephasing) over a long distance in antiferromagnetically ordered metals. Here, we estimate the…
Current-induced spin-orbit field in permalloy interfaced with ultrathin Ti and Cu
Ryan W. Greening, David A. Smith, Youngmin Lim +5
How spin-orbit torques emerge from materials with weak spin-orbit coupling (e.g., light metals) is an open question in spintronics. Here, we report on a field-like spin-orbit torqu…
Conductivity-Like Gilbert Damping due to Intraband Scattering in Epitaxial Iron
Behrouz Khodadadi, Anish Rai, Arjun Sapkota +15
Confirming the origin of Gilbert damping by experiment has remained a challenge for many decades, even for simple ferromagnetic metals. In this Letter, we experimentally identify G…
Spin decoherence independent of antiferromagnetic order in IrMn
Behrouz Khodadadi, Youngmin Lim, David A. Smith +5
We investigate the impact of pinned antiferromagnetic order on the decoherence of spin current in polycrystalline IrMn. In NiFe/Cu/IrMn/CoFe multilayers, we coherently pump an elec…