Analytical method for two dimensional current crowding effect in magnetic tunnel junctions

2002 ◽  
Vol 91 (10) ◽  
pp. 8783 ◽  
Author(s):  
Jian Chen ◽  
Yun Li ◽  
Janusz Nowak ◽  
Juan Fernandez de-Castro
Keyword(s):  
Analytical Method ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Two Dimensional ◽  
Current Crowding ◽  
Crowding Effect

Layer-Dependent Giant Magnetoresistance in Two-Dimensional CrPS4 Magnetic Tunnel Junctions

2021 ◽  
Vol 16 (2) ◽  
Author(s):  
Jie Yang ◽  
Shibo Fang ◽  
Yuxuan Peng ◽  
Shiqi Liu ◽  
Baochun Wu ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Two Dimensional

Spin-filter induced large magnetoresistance in 2D van der Waals magnetic tunnel junctions

Nanoscale ◽  
2021 ◽  
Author(s):  
Wei Yang ◽  
Yuan Cao ◽  
Jiangchao Han ◽  
Xiaoyang Lin ◽  
Xinhe Wang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Tunnel Junctions ◽  
Van Der Waals ◽  
Magnetic Tunnel Junctions ◽  
Two Dimensional ◽  
Spin Filter

We theoretically predict the spin-filter induced large magnetoresistance in two-dimensional MTJs based on room temperature two-dimensional ferromagnet 1T-VSe2.

Tunable Tunneling Magnetoresistance in In-plane double barrier Magnetic Tunnel Junctions based on B Vacancy h-NB Nanoribbons

2022 ◽  
Author(s):  
Hailin Yu ◽  
Zhengguang Shao ◽  
Yongmei Tao ◽  
Xuefan Jiang ◽  
Yaojun Dong ◽  
...  
Keyword(s):  
Magnetic Materials ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Tunneling Magnetoresistance ◽  
Two Dimensional ◽  
Double Barrier

Magnetic tunnel junctions (MTJs) have attained new opportunities due to the emergence of two-dimensional (2D) magnetic materials after it has been proposed more than forty years. Here, an in-plane double...

High-performance Magnetic Tunnel Junctions Based on Two-Dimensional Bi2O2Se

2021 ◽  
pp. 168346
Author(s):  
Hao Liu ◽  
Pan Wang ◽  
Longfei Pan ◽  
Hongyu Wen ◽  
Yueyang Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Two Dimensional

Two-dimensional magnetic switching of micron-size films in magnetic tunnel junctions

2000 ◽  
Vol 76 (5) ◽  
pp. 622-624 ◽  
Author(s):  
A. Anguelouch ◽  
B. D. Schrag ◽  
Gang Xiao ◽  
Yu Lu ◽  
P. L. Trouilloud ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Two Dimensional ◽  
Magnetic Switching ◽  
Micron Size

Coaxial tunnel junctions: a novel approach to reduce the current crowding effect in electrically-pumped VECSELs

2014 ◽  
Author(s):  
J. Walczak ◽  
M. Wasiak ◽  
R. P. Sarzala ◽  
A. Sirbu ◽  
E. Kapon ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Current Crowding ◽  
Crowding Effect ◽  
Novel Approach ◽  
Electrically Pumped

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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