scholarly journals Spin-valve Josephson junctions with perpendicular magnetic anisotropy for cryogenic memory

2020 ◽  
Vol 116 (2) ◽  
pp. 022601 ◽  
Author(s):  
N. Satchell ◽  
P. M. Shepley ◽  
M. Algarni ◽  
M. Vaughan ◽  
E. Darwin ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Josephson Junctions ◽  
Spin Valve ◽  
Perpendicular Magnetic Anisotropy

scholarly journals Current-Induced Pinwheel Oscillations in Perpendicular Magnetic Anisotropy Spin Valve Nanopillars

2016 ◽  
Vol 52 (10) ◽  
pp. 1-5 ◽  
Author(s):  
Richard Choi ◽  
J. A. Katine ◽  
Stephane Mangin ◽  
Eric E. Fullerton
Keyword(s):  
Magnetic Anisotropy ◽  
Spin Valve ◽  
Perpendicular Magnetic Anisotropy

scholarly journals Confined Dissipative Droplet Solitons in Spin-Valve Nanowires with Perpendicular Magnetic Anisotropy

2014 ◽  
Vol 112 (4) ◽  
Author(s):  
Ezio Iacocca ◽  
Randy K. Dumas ◽  
Lake Bookman ◽  
Majid Mohseni ◽  
Sunjae Chung ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Spin Valve ◽  
Perpendicular Magnetic Anisotropy

scholarly journals Pt and CoB trilayer Josephson $$\pi $$ junctions with perpendicular magnetic anisotropy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
N. Satchell ◽  
T. Mitchell ◽  
P. M. Shepley ◽  
E. Darwin ◽  
B. J. Hickey ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Electrical Transport ◽  
Josephson Junctions ◽  
Perpendicular Magnetic Anisotropy ◽  
Alloy Layer ◽  
Dead Layer ◽  
Ferromagnetic Alloy ◽  
Electrical Transport Properties ◽  
Potential Applications ◽  
Zero Phase

AbstractWe report on the electrical transport properties of Nb based Josephson junctions with Pt/Co$$_{68}$$ 68 B$$_{32}$$ 32 /Pt ferromagnetic barriers. The barriers exhibit perpendicular magnetic anisotropy, which has the main advantage for potential applications over magnetisation in-plane systems of not affecting the Fraunhofer response of the junction. In addition, we report that there is no magnetic dead layer at the Pt/Co$$_{68}$$ 68 B$$_{32}$$ 32 interfaces, allowing us to study barriers with ultra-thin Co$$_{68}$$ 68 B$$_{32}$$ 32 . In the junctions, we observe that the magnitude of the critical current oscillates with increasing thickness of the Co$$_{68}$$ 68 B$$_{32}$$ 32 strong ferromagnetic alloy layer. The oscillations are attributed to the ground state phase difference across the junctions being modified from zero to $$\pi $$ π . The multiple oscillations in the thickness range $$0.2~\leqslant ~d_\text {CoB}~\leqslant ~1.4$$ 0.2 ⩽ d CoB ⩽ 1.4  nm suggests that we have access to the first zero-$$\pi $$ π and $$\pi $$ π -zero phase transitions. Our results fuel the development of low-temperature memory devices based on ferromagnetic Josephson junctions.

scholarly journals Spin-triplet supercurrent in Josephson junctions containing a synthetic antiferromagnet with perpendicular magnetic anisotropy

2017 ◽  
Vol 96 (22) ◽  
Author(s):  
Joseph A. Glick ◽  
Samuel Edwards ◽  
Demet Korucu ◽  
Victor Aguilar ◽  
Bethany M. Niedzielski ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Josephson Junctions ◽  
Perpendicular Magnetic Anisotropy ◽  
Synthetic Antiferromagnet ◽  
Spin Triplet

TEM Study of Co/Pd and Co/Au Multilayers

1993 ◽  
Vol 51 ◽  
pp. 1036-1037
Author(s):  
A.E.M. De Veirman ◽  
F.J.G. Hakkens ◽  
W.M.J. Coene ◽  
F.J.A. den Broeder
Keyword(s):  
Magnetic Anisotropy ◽  
Ion Beam ◽  
Perpendicular Magnetic Anisotropy ◽  
Optical Recording ◽  
Magnetic Multilayer ◽  
Ion Beam Sputtering ◽  
Cross Sectional ◽  
Transmission Electron ◽  
Beam Sputtering ◽  
Substrate Temperatures

There is currently great interest in magnetic multilayer (ML) thin films (see e.g.), because they display some interesting magnetic properties. Co/Pd and Co/Au ML systems exhibit perpendicular magnetic anisotropy below certain Co layer thicknesses, which makes them candidates for applications in the field of magneto-optical recording. It has been found that the magnetic anisotropy of a particular system strongly depends on the preparation method (vapour deposition, sputtering, ion beam sputtering) as well as on the substrate, underlayer and deposition temperature. In order to get a better understanding of the correlation between microstructure and properties a thorough cross-sectional transmission electron microscopy (XTEM) study of vapour deposited Co/Pd and Co/Au (111) MLs was undertaken (for more detailed results see ref.).The Co/Pd films (with fixed Pd thickness of 2.2 nm) were deposited on mica substrates at substrate temperatures Ts of 20°C and 200°C, after prior deposition of a 100 nm Pd underlayer at 450°C.

Effects of ion irradiation on epitaxial Cu/Ni/Cu(001) with perpendicular magnetic anisotropy

2002 ◽  
Vol 81 (21) ◽  
pp. 4017-4019 ◽  
Author(s):  
T. G. Kim ◽  
Y. H. Shin ◽  
J. H. Song ◽  
M. C. Sung ◽  
I. S. Kim ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Ion Irradiation ◽  
Perpendicular Magnetic Anisotropy

scholarly journals Interfacial Dzyaloshinskii-Moriya Interaction, Perpendicular Magnetic Anisotropy and damping in CoFeB/oxide-based systems

2021 ◽  
pp. 1-1
Author(s):  
I. Benguettat-El Mokhtari ◽  
Y. Roussigne ◽  
S. M. Cherif ◽  
S. Auffret ◽  
C. Baraduc ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Moriya Interaction
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