Characterization of the magnetization vortex state in magnetic tunnel junctions patterned into nanometer-scale arrays

2006 ◽  
Vol 99 (1) ◽  
pp. 014307 ◽  
Author(s):  
E. Girgis ◽  
S. P. Pogossian ◽  
M. Gbordzoe
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Vortex State ◽  
Nanometer Scale

Characterization of magnetic tunnel junctions (MTJ) with magnetostrictive free layer materials

2004 ◽  
Vol 272-276 ◽  
pp. 2023-2024 ◽  
Author(s):  
M. Löhndorf ◽  
S. Dokupil ◽  
J. Wecker ◽  
M. Rührig ◽  
E. Quandt
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Free Layer

scholarly journals Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Alex S. Jenkins ◽  
Lara San Emeterio Alvarez ◽  
Paulo P. Freitas ◽  
Ricardo Ferreira
Keyword(s):  
Tunnel Junctions ◽  
Magnetic State ◽  
Magnetic Tunnel Junctions ◽  
Vortex State ◽  
Magnetic Vortex ◽  
State Transitions ◽  
Free Layer ◽  
Plane Field ◽  
Random Bit Generator ◽  
Ac Current

Abstract We present an investigation into the in-plane field induced free layer state transitions found in magnetic tunnel junctions. By applying an ac current into an integrated field antenna, the magnetisation of the free layer can be switched between the magnetic vortex state and the quasi-uniform anti-parallel state. When in the magnetic vortex state, the vortex core gyrates a discrete number of times, and at certain frequencies there is a 50% chance of the core gyrating n or n − 1 times, leading to the proposal of a novel nanoscale continuous digital true random bit generator.

Low-temperature magnetic characterization of optimum and etch-damaged in-plane magnetic tunnel junctions

2013 ◽  
Vol 114 (11) ◽  
pp. 114506 ◽  
Author(s):  
Jimmy J. Kan ◽  
Kangho Lee ◽  
Matthias Gottwald ◽  
Seung H. Kang ◽  
Eric E. Fullerton
Keyword(s):  
Low Temperature ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Magnetic Characterization

Fabrication and characterization of L1/sub 0/-ordered FePt/AlO/FeCo magnetic tunnel junctions

2005 ◽  
Vol 41 (10) ◽  
pp. 2606-2608 ◽  
Author(s):  
S. Mitani ◽  
K. Tsukamoto ◽  
T. Seki ◽  
T. Shima ◽  
K. Takanashi
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Fabrication And Characterization

scholarly journals TEM and Atom Probe Tomography Characterization of High TMR MgO-Based Magnetic Tunnel Junctions

2009 ◽  
Vol 15 (S2) ◽  
pp. 278-279
Author(s):  
PM Rice ◽  
S-H Yang ◽  
SSP Parkin ◽  
EA Marquis ◽  
TJ Prosa ◽  
...  
Keyword(s):  
Atom Probe Tomography ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Atom Probe

Extended abstract of a paper presented at Microscopy and Microanalysis 2009 in Richmond, Virginia, USA, July 26 – July 30, 2009

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