61 citations · 343 across the 17 of their papers we have counts for
17 papers
Coexisting and interacting spin torque driven free and reference layer magnetic droplet solitons
Sheng Jiang, Sunjae Chung, Martina Ahlberg +6
Magnetic droplets are nanoscale, non-topological, magnetodynamical solitons that can be nucleated in spin torque nano-oscillators (STNOs) or spin Hall nano-oscillators (SHNOs). All…
Field-free high-frequency exchange-spring spin-torque nano-oscillators
Sheng Jiang, Sunjae Chung, Quang Tuan Le +3
Spin-torque nano-oscillators (STNOs) are a type of nanoscale microwave auto-oscillators utilizing spin-torque to generate magnetodynamics with great promise for applications in mic…
Freezing and thawing magnetic droplet solitons
Martina Ahlberg, Sunjae Chung, Sheng Jiang +10
Magnetic droplets are non-topological magnetodynamical solitons displaying a wide range of complex dynamic phenomena with potential for microwave signal generation. Bubbles, on the…
Impact of intra-grain spin wave reflections on nano-contact spin torque oscillators
Anders J. Eklund, Mykola Dvornik, Fatjon Qejvanaj +4
We investigate the origin of the experimentally observed varying current-frequency nonlinearity of the propagating spin wave mode in nano-contact spin torque oscillators. Nominally…
Magnetodynamics in orthogonal nanocontact spin-torque nano-oscillators based on magnetic tunnel junctions
S. Jiang, M. Ahlberg, S. Chung +4
We demonstrate field and current controlled magnetodynamics in nanocontact spin-torque nano-oscillators (STNOs) based on orthogonal magnetic tunnel junctions (MTJs). We systematica…
Tuning spin torque nano-oscillator nonlinearity using He+ irradiation
Sheng Jiang, Roman Khymyn, Sunjae Chung +6
We use He irradiation to tune the nonlinearity, , of all-perpendicular spin-torque nano-oscillators (STNOs) using the He fluence-dependent perpendicular magnet…