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   Articles with "cofeb" as a keyword



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Enhanced tunnel magnetoresistance and electric-field effect in CoFeB/MgO/CoFeB perpendicular tunnel junctions with W underlayer

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recommendations! Published in 2017 at "Current Applied Physics"

DOI: 10.1016/j.cap.2017.04.003

Abstract: Abstract We investigated the dependence of tunnel magnetoresistance (TMR) and its electric-field effect in CoFeB/MgO/CoFeB magnetic tunnel junctions (MTJ) on different underlayer (UL) materials. We observed enhancements in the TMR ratio and its temperature dependence… read more here.

Keywords: cofeb; tunnel; cofeb mgo; electric field ... See more keywords
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Nanometer-scale etching of CoFeB thin films using pulse-modulated high density plasma

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recommendations! Published in 2018 at "Current Applied Physics"

DOI: 10.1016/j.cap.2018.04.022

Abstract: Abstract Pulse-modulated inductively coupled plasma reactive ion etching of nanometer-scale patterned CoFeB thin films was performed in CH 4 /O 2 /Ar gas mixture. As the pulse on-off duty ratio decreased, the etch selectivity of… read more here.

Keywords: cofeb; thin films; nanometer scale; cofeb thin ... See more keywords
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Variable substrate temperature deposition of CoFeB film on Ta for manipulating the perpendicular coercive forces

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recommendations! Published in 2017 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2017.03.069

Abstract: Abstract Magnetization of Ta/CoFeB/Ta trilayer films with thick layer of CoFeB deposited under different substrate temperatures (T s ) via ultra-high vacuum DC sputtering technique has been measured with the applied magnetic field parallel and… read more here.

Keywords: cofeb; coercive forces; temperature; perpendicular coercive ... See more keywords
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Investigation of split CoFeB/Ta/CoFeB/MgO stacks for magnetic memories applications.

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recommendations! Published in 2018 at "Journal of magnetism and magnetic materials"

DOI: 10.1016/j.jmmm.2018.10.103

Abstract: We report on the static and dynamic magnetic properties of W/CoFeB/Ta/CoFeB/MgO stacks, where the CoFeB layer is split in two by a 0.3 nm-thick Ta "dusting" layer. A total CoFeB thickness between 1.2 and 2.4… read more here.

Keywords: cofeb; mgo stacks; split cofeb; split ... See more keywords
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Enhancing perpendicular magnetic anisotropy through dead layer reduction utilizing precise control of Mg insertions

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recommendations! Published in 2020 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2020.166956

Abstract: Abstract Using an ultrathin metallic layer of Mg at the CoFeB|MgO interface has been emerged as an appealing solution to efficiently enhance the tunneling magnetoresistance and thermal stability while reducing the resistance-area product and effective… read more here.

Keywords: cofeb; layer; perpendicular magnetic; magnetic anisotropy ... See more keywords
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Exchange stiffness and damping constants of spin waves in CoFeB films

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recommendations! Published in 2020 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2020.167335

Abstract: Abstract Exchange stiffness and damping of spin waves in a soft ferromagnet of CoFeB are investigated using a time-resolved pump-probe technique. A pump pulse excites coherent spin waves in CoFeB via optical spin-orbit torque from… read more here.

Keywords: exchange stiffness; spin waves; cofeb; spin ... See more keywords
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Evaluation of a new MgO barrier based on CoFeB/MgO/CoFeB structure for advanced MRAM applications

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recommendations! Published in 2017 at "Microelectronic Engineering"

DOI: 10.1016/j.mee.2016.09.010

Abstract: MRAM technology offers the opportunity to provide all the advantages of the most popular types of memory, such as DRAM, SRAM and FLASH with none of its disadvantages. Magnetic tunnel junctions (MTJs) based on CoFeB/MgO/CoFeB… read more here.

Keywords: mgo; mgo barrier; cofeb; based cofeb ... See more keywords
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Ferromagnetic resonance of CoFeB/Ta/CoFeB spin valves versus CoFeB film

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recommendations! Published in 2017 at "Thin Solid Films"

DOI: 10.1016/j.tsf.2017.08.029

Abstract: In MgO/CoFeB/MgO/Ta (single layer) and MgO/CoFeB/Ta/CoFeB/MgO/Ta spin valve (bilayer), the orientation dependences of ferromagnetic resonance (FMR) have been analyzed. Magnetic anisotropy constants as well as damping constants have been extracted. The differences between the anisotropy… read more here.

Keywords: mgo; cofeb; ferromagnetic resonance; spin ... See more keywords

Magnetocrystalline anisotropy imprinting of an antiferromagnet on an amorphous ferromagnet in FeRh/CoFeB heterostructures

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recommendations! Published in 2020 at "NPG Asia Materials"

DOI: 10.1038/s41427-020-00248-x

Abstract: Magnetic anisotropy is a fundamental key parameter of magnetic materials that determines their applications. For ferromagnetic materials, the magnetic anisotropy can be easily detected by using conventional magnetic characterization techniques. However, due to the magnetic… read more here.

Keywords: cofeb; magnetocrystalline anisotropy; ferh; layer ... See more keywords
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Spin reorientation transition in CoFeB/MgO/CoFeB tunnel junction enabled by ultrafast laser-induced suppression of perpendicular magnetic anisotropy.

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recommendations! Published in 2022 at "Nanoscale"

DOI: 10.1039/d2nr00637e

Abstract: Magnetic tunnel junction (MTJ) is a leading contender for next generation high-density nonvolatile memory technology. Fast and efficient switching of MTJs between different resistance states is a challenging problem, which can be tackled by using… read more here.

Keywords: magnetization; laser; magnetic anisotropy; cofeb ... See more keywords

Improved read disturb and write error rates in voltage-control spintronics memory (VoCSM) by controlling energy barrier height

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recommendations! Published in 2017 at "Applied Physics Letters"

DOI: 10.1063/1.4986923

Abstract: A hybrid writing scheme that combines the spin Hall effect and voltage-controlled magnetic-anisotropy effect is investigated in Ta/CoFeB/MgO/CoFeB/Ru/CoFe/IrMn junctions. The write current and control voltage are applied to Ta and CoFeB/MgO/CoFeB junctions, respectively. The critical… read more here.

Keywords: cofeb; write error; error; read disturb ... See more keywords