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Large exchange bias...
Large exchange bias and spin pumping in ultrathin IrMn/Co system for spintronic device applications
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Goyat, E. (författare)
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- Behera, Nilamani (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Barwal, V. (författare)
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Siwach, R. (författare)
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Goyat, G. (författare)
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Gupta, N. K. (författare)
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Pandey, L. (författare)
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Kumar, N. (författare)
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Hait, S. (författare)
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Chaudhary, S. (författare)
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
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Ingår i: Applied Surface Science. - : Elsevier BV. - 0169-4332. ; 588
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Few nanometers thick antiferromagnetic/Ferromagnetic bilayer based spintronic devices have emerged as a potential nanostructured bilayer for achieving ultrahigh-speed magnetization switching, low power dissipation, terahertz magnetization dynamics, and are compatible with CMOS technology. The systematic investigation of the exchange bias (EB) in theIr(22)Mn(78)/Co system is performed by varying Co thickness (t(Co)) in the range of 6-20 nm with 10 nm thin Ir22Mn78 layer on top, using longitudinal magneto-optic Kerr effect (L-MOKE) and ferromagnetic resonance (FMR) measurements at room temperature. Here, we report the occurrence of a record high EB field in this bilayer system, which is 13.11 mT (9.04 mT) statically (dynamically) for 6 nm thick of Co. The percentage change of 313.5 % (251.7%) in exchange bias field is found through FMR (MOKE) measurements with respect to t(Co) variation from 20 to 6 nm. Additionally, the spin pumping mechanism is also studied in the above stated material system by using the FMR technique. The observed linear dependence of effective Gilbert's damping with respect to the 1/t(Co)& nbsp;, indicates the occurrence of spin pumping phenomena. The study suggests that tunability of both the exchange interaction and spin pumping behavior in this Ir22Mn78/Co system, makes this system suitable for future antiferromagnetic spintronic devices.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Sputtering
- Exchange Bias
- Magneto optic Kerr effect
- Ferromagnetic
- resonance
- Spin Pumping
- Spin mixing conductance
- angular-dependence
- anisotropy
- films
- layer
- ir
- Chemistry
- Materials Science
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Goyat, E.
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Behera, Nilamani
-
Barwal, V.
-
Siwach, R.
-
Goyat, G.
-
Gupta, N. K.
-
visa fler...
-
Pandey, L.
-
Kumar, N.
-
Hait, S.
-
Chaudhary, S.
-
visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
- Artiklar i publikationen
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Applied Surface ...
- Av lärosätet
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Göteborgs universitet