Field and bias dependence of high-frequency magnetic noise in MgO-based magnetic tunnel junctions

2009 ◽  
Vol 105 (7) ◽  
pp. 07D127 ◽  
Author(s):  
Y. Guan ◽  
D. W. Abraham ◽  
M. C. Gaidis ◽  
G. Hu ◽  
E. J. O’Sullivan ◽  
...  
Keyword(s):  
High Frequency ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Magnetic Noise

scholarly journals Spin-Torque Influence on the High-Frequency Magnetization Fluctuations in Magnetic Tunnel Junctions

2007 ◽  
Vol 98 (7) ◽  
Author(s):  
S. Petit ◽  
C. Baraduc ◽  
C. Thirion ◽  
U. Ebels ◽  
Y. Liu ◽  
...  
Keyword(s):  
High Frequency ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Spin Torque

scholarly journals High frequency voltage-induced ferromagnetic resonance in magnetic tunnel junctions

2019 ◽  
Vol 115 (7) ◽  
pp. 072401
Author(s):  
Witold Skowroński ◽  
Stanisław Łazarski ◽  
Jakub Mojsiejuk ◽  
Jakub Chęciński ◽  
Marek Frankowski ◽  
...  
Keyword(s):  
Ferromagnetic Resonance ◽  
High Frequency ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions

Low-Frequency Magnetic Noise in Micron-Scale Magnetic Tunnel Junctions

2000 ◽  
Vol 85 (15) ◽  
pp. 3289-3292 ◽  
Author(s):  
S. Ingvarsson ◽  
Gang Xiao ◽  
S. S. P. Parkin ◽  
W. J. Gallagher ◽  
G. Grinstein ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Low Frequency ◽  
Magnetic Tunnel Junctions ◽  
Magnetic Noise

Low-frequency magnetic noise in magnetic tunnel junctions

2004 ◽  
Vol 69 (10) ◽  
Author(s):  
Cong Ren ◽  
Xiaoyong Liu ◽  
B. D. Schrag ◽  
Gang Xiao
Keyword(s):  
Tunnel Junctions ◽  
Low Frequency ◽  
Magnetic Tunnel Junctions ◽  
Magnetic Noise

Structural and magneto-transport properties of lattice-mismatched epitaxial Fe/SrO/MgO/Fe magnetic tunnel junctions

2020 ◽  
Vol 59 (10) ◽  
pp. 103001
Author(s):  
Aurelie Spiesser ◽  
Shintaro Kon ◽  
Yukiko Yasukawa ◽  
Shinji Yuasa ◽  
Hiroshi Imamura ◽  
...  
Keyword(s):  
Transport Properties ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions

scholarly journals Electrical characterisation of higher order spin wave modes in vortex-based magnetic tunnel junctions

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Alex. S. Jenkins ◽  
Lara San Emeterio Alvarez ◽  
Samh Memshawy ◽  
Paolo Bortolotti ◽  
Vincent Cros ◽  
...  
Keyword(s):  
Spin Wave ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Higher Order ◽  
Spin Torque ◽  
Micromagnetic Simulations ◽  
Higher Order Modes ◽  
Spin Diode ◽  
Super High Frequency ◽  
Wave Modes

AbstractNiFe-based vortex spin-torque nano-oscillators (STNO) have been shown to be rich dynamic systems which can operate as efficient frequency generators and detectors, but with a limitation in frequency determined by the gyrotropic frequency, typically sub-GHz. In this report, we present a detailed analysis of the nature of the higher order spin wave modes which exist in the Super High Frequency range (3–30 GHz). This is achieved via micromagnetic simulations and electrical characterisation in magnetic tunnel junctions, both directly via the spin-diode effect and indirectly via the measurement of the coupling with the gyrotropic critical current. The excitation mechanism and spatial profile of the modes are shown to have a complex dependence on the vortex core position. Additionally, the inter-mode coupling between the fundamental gyrotropic mode and the higher order modes is shown to reduce or enhance the effective damping depending upon the sense of propagation of the confined spin wave.

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