Matches in SemOpenAlex for { <https://semopenalex.org/work/W4200419035> ?p ?o ?g. }
- W4200419035 abstract "Switching induced by spin-orbit torque (SOT) is being vigorously explored, as it allows the control of magnetization using an in-plane current, which enables a three-terminal magnetic-tunnel-junction geometry with isolated read and write paths. This significantly improves the device endurance and the read stability, and allows reliable subnanosecond switching. Tungsten in the $ensuremath{beta}$ phase, $ensuremath{beta}$-$mathrm{W}$, has the largest reported antidamping SOT charge-to-spin conversion ratio $({ensuremath{theta}}_{mathrm{AD}}ensuremath{approx}ensuremath{-}60mathrm{%})$ for heavy metals. However, $ensuremath{beta}$-$mathrm{W}$ has a limitation when one is aiming for reliable technology integration: the $ensuremath{beta}$ phase is limited to a thickness of a few nanometers and enters the $ensuremath{alpha}$ phase above 4 nm in our samples when industry-relevant deposition tools are used. Here, we report our approach to extending the range of $ensuremath{beta}$-$mathrm{W}$, while simultaneously improving the SOT efficiency by introducing $mathrm{N}$ and $mathrm{O}$ doping of $mathrm{W}$. Resistivity and XRD measurements confirm the extension of the $ensuremath{beta}$ phase from 4 nm to more than 10 nm, and transport characterization shows an effective SOT efficiency larger than $ensuremath{-}44.4mathrm{%}$ (reaching approximately $ensuremath{-}60mathrm{%}$ for the bulk contribution). In addition, we demonstrate the possibility of controlling and enhancing the perpendicular magnetic anisotropy of a storage layer ($mathrm{Co}text{ensuremath{-}}mathrm{Fe}text{ensuremath{-}}mathrm{B}$). Further, we integrate the optimized $mathrm{W}(mathrm{O},mathrm{N})$ into SOT magnetic random-access memory (SOT-MRAM) devices and project that, for the same thickness of SOT material, the switching current decreases by 25% in optimized $mathrm{W}(mathrm{O},mathrm{N})$ compared with our standard $mathrm{W}$. Our results open the path to using and further optimizing $mathrm{W}$ for integration of SOT-MRAM technology." @default.
- W4200419035 created "2021-12-31" @default.
- W4200419035 creator A5009484452 @default.
- W4200419035 creator A5022214575 @default.
- W4200419035 creator A5024595358 @default.
- W4200419035 creator A5026699748 @default.
- W4200419035 creator A5034142358 @default.
- W4200419035 creator A5037492369 @default.
- W4200419035 creator A5057967425 @default.
- W4200419035 creator A5080181961 @default.
- W4200419035 date "2021-12-03" @default.
- W4200419035 modified "2023-10-18" @default.
- W4200419035 title "Optimization of Tungsten <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline overflow=scroll><mml:mi>β</mml:mi></mml:math> -Phase Window for Spin-Orbit-Torque Magnetic Random-Access Memory" @default.
- W4200419035 cites W1491143454 @default.
- W4200419035 cites W1803879908 @default.
- W4200419035 cites W1951831558 @default.
- W4200419035 cites W1961928844 @default.
- W4200419035 cites W1963984862 @default.
- W4200419035 cites W1965534358 @default.
- W4200419035 cites W1992508027 @default.
- W4200419035 cites W1995123938 @default.
- W4200419035 cites W2008792512 @default.
- W4200419035 cites W2014744284 @default.
- W4200419035 cites W2027096752 @default.
- W4200419035 cites W2038367963 @default.
- W4200419035 cites W2076369786 @default.
- W4200419035 cites W2076787692 @default.
- W4200419035 cites W2079103493 @default.
- W4200419035 cites W2079546781 @default.
- W4200419035 cites W2125305364 @default.
- W4200419035 cites W2148003211 @default.
- W4200419035 cites W2160539281 @default.
- W4200419035 cites W2160796815 @default.
- W4200419035 cites W2162612236 @default.
- W4200419035 cites W2240692595 @default.
- W4200419035 cites W2276566611 @default.
- W4200419035 cites W2321661326 @default.
- W4200419035 cites W2410281801 @default.
- W4200419035 cites W2419199464 @default.
- W4200419035 cites W2461533533 @default.
- W4200419035 cites W2586637063 @default.
- W4200419035 cites W2634600623 @default.
- W4200419035 cites W2729805806 @default.
- W4200419035 cites W2762568664 @default.
- W4200419035 cites W2786794758 @default.
- W4200419035 cites W2787226197 @default.
- W4200419035 cites W2802907941 @default.
- W4200419035 cites W2850204543 @default.
- W4200419035 cites W2884928944 @default.
- W4200419035 cites W2964089300 @default.
- W4200419035 cites W2997462720 @default.
- W4200419035 cites W3004227146 @default.
- W4200419035 cites W3004938331 @default.
- W4200419035 cites W3099066499 @default.
- W4200419035 cites W3100511017 @default.
- W4200419035 cites W3101234092 @default.
- W4200419035 cites W3104793722 @default.
- W4200419035 cites W3105284836 @default.
- W4200419035 cites W3105391692 @default.
- W4200419035 cites W3105484385 @default.
- W4200419035 cites W3105596996 @default.
- W4200419035 doi "https://doi.org/10.1103/physrevapplied.16.064009" @default.
- W4200419035 hasPublicationYear "2021" @default.
- W4200419035 type Work @default.
- W4200419035 citedByCount "15" @default.
- W4200419035 countsByYear W42004190352022 @default.
- W4200419035 countsByYear W42004190352023 @default.
- W4200419035 crossrefType "journal-article" @default.
- W4200419035 hasAuthorship W4200419035A5009484452 @default.
- W4200419035 hasAuthorship W4200419035A5022214575 @default.
- W4200419035 hasAuthorship W4200419035A5024595358 @default.
- W4200419035 hasAuthorship W4200419035A5026699748 @default.
- W4200419035 hasAuthorship W4200419035A5034142358 @default.
- W4200419035 hasAuthorship W4200419035A5037492369 @default.
- W4200419035 hasAuthorship W4200419035A5057967425 @default.
- W4200419035 hasAuthorship W4200419035A5080181961 @default.
- W4200419035 hasBestOaLocation W42004190352 @default.
- W4200419035 hasConcept C101722063 @default.
- W4200419035 hasConcept C111919701 @default.
- W4200419035 hasConcept C121332964 @default.
- W4200419035 hasConcept C192562407 @default.
- W4200419035 hasConcept C26873012 @default.
- W4200419035 hasConcept C41008148 @default.
- W4200419035 hasConcept C42704618 @default.
- W4200419035 hasConcept C44280652 @default.
- W4200419035 hasConcept C62520636 @default.
- W4200419035 hasConcept C97355855 @default.
- W4200419035 hasConceptScore W4200419035C101722063 @default.
- W4200419035 hasConceptScore W4200419035C111919701 @default.
- W4200419035 hasConceptScore W4200419035C121332964 @default.
- W4200419035 hasConceptScore W4200419035C192562407 @default.
- W4200419035 hasConceptScore W4200419035C26873012 @default.
- W4200419035 hasConceptScore W4200419035C41008148 @default.
- W4200419035 hasConceptScore W4200419035C42704618 @default.
- W4200419035 hasConceptScore W4200419035C44280652 @default.
- W4200419035 hasConceptScore W4200419035C62520636 @default.
- W4200419035 hasConceptScore W4200419035C97355855 @default.
- W4200419035 hasIssue "6" @default.
- W4200419035 hasLocation W42004190351 @default.
- W4200419035 hasLocation W42004190352 @default.