Lower-temperature crystallization of CoFeB in MgO magnetic tunnel junctions by using Ti capping layer

2009 ◽  
Vol 94 (6) ◽  
pp. 062509 ◽  
Author(s):  
Takahiro Ibusuki ◽  
Toyoo Miyajima ◽  
Shinjiro Umehara ◽  
Shin Eguchi ◽  
Masashige Sato
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Capping Layer ◽  
Lower Temperature ◽  
Temperature Crystallization ◽  
Ti Capping Layer

scholarly journals Transmission Electron Microscopy Study on the Crystallization of Ion Beam Assisted Deposited CoFeB/MgO/CoFeB Magnetic Tunnel Junctions with Tantalum Capping Layer

2011 ◽  
Vol 17 (S2) ◽  
pp. 1860-1861
Author(s):  
R Petrova ◽  
R Ferreira ◽  
S Cardoso ◽  
P Freitas ◽  
S McVitie ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Tunnel Junctions ◽  
Ion Beam ◽  
Magnetic Tunnel Junctions ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Transmission Electron Microscopy Study ◽  
Capping Layer ◽  
Transmission Electron

Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.

scholarly journals Effect of capping layer material on thermal tolerance of magnetic tunnel junctions with MgO/CoFeB-based free layer/MgO/capping layers

AIP Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 125330 ◽  
Author(s):  
H. Honjo ◽  
T. V. A. Nguyen ◽  
M. Yasuhira ◽  
M. Niwa ◽  
S. Ikeda ◽  
...  
Keyword(s):  
Thermal Tolerance ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Free Layer ◽  
Capping Layer ◽  
Layer Material

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.

Interfacial Control via Reversible Ionic Motion in Battery‐Like Magnetic Tunnel Junctions

2021 ◽  
pp. 2100512
Author(s):  
Guofei Long ◽  
Qian Xue ◽  
Qiang Li ◽  
Yu Shi ◽  
Lin Li ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Ionic Motion

scholarly journals Large Inverse Tunnel Magnetoresistance in Magnetic Tunnel Junctions with an Fe3O4 Electrode

2021 ◽  
Vol 15 (3) ◽  
Author(s):  
Shoma Yasui ◽  
Syuta Honda ◽  
Jun Okabayashi ◽  
Takashi Yanase ◽  
Toshihiro Shimada ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Tunnel Magnetoresistance
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