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   Articles with "hafnia" as a keyword



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Impact of Transition Metal Cations on the 29Si NMR Signal in Metal Oxide Glasses: A DFT Case Study of Hafnia Silica Glass

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recommendations! Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.7b06094

Abstract: We investigate 29Si nuclear magnetic resonance (NMR) chemical shifts δiso of soda-silica and hafnia-soda-silica glass models by structural modeling and the gauge-invariant projector augmented wave (GIPAW) method within density functional theory (DFT). Models of soda-silica… read more here.

Keywords: hafnia; soda silica; silica glass; silica ... See more keywords

Hitchhiking probiotic vectors to deliver ultra-small hafnia nanoparticles for 'Color' gastrointestinal tract photon counting X-ray imaging.

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recommendations! Published in 2022 at "Nanoscale horizons"

DOI: 10.1039/d1nh00626f

Abstract: Gastrointestinal (GI) tract is one of the hard-to-reach target tissues for the delivery of contrast agents and drugs mediated by nanoparticles due to its harsh environment. Herein, we overcame this barrier by designing orally ingestible… read more here.

Keywords: hafnia; contrast agents; probiotic vectors; photon counting ... See more keywords
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Model of dielectric breakdown in hafnia-based ferroelectric capacitors

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recommendations! Published in 2018 at "Journal of Applied Physics"

DOI: 10.1063/1.5031491

Abstract: Ultra-thin ferroelectric hafnia-based thin films are very promising candidates for nanoscale ferroelectric random access memories. However, dielectric breakdown is a main failure mechanism during repeated polarization switching. Generalizing Lou et al.'s local phase decomposition model,… read more here.

Keywords: hafnia; tin; model; dielectric breakdown ... See more keywords

Elucidating possible crystallographic origins of wake-up mechanisms in ferroelectric hafnia

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recommendations! Published in 2021 at "Applied Physics Letters"

DOI: 10.1063/5.0029691

Abstract: The wake-up in doped hafnia ferroelectric devices is an extremely important process to understand in order to integrate these materials successfully into working ferroelectric memory devices. The crystallographic origins of this process are clarified with… read more here.

Keywords: crystallographic origins; hafnia; possible crystallographic; elucidating possible ... See more keywords
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Impact of Zr substitution on the electronic structure of ferroelectric hafnia

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recommendations! Published in 2023 at "Journal of Applied Physics"

DOI: 10.1063/5.0146092

Abstract: HfO2-based dielectrics are promising for nanoscale ferroelectric applications, and the most favorable material within the family is Zr-substituted hafnia, i.e., Hf1−xZrxO2 (HZO). The extent of Zr substitution can be great, and x is commonly set… read more here.

Keywords: substitution; structure; hafnia; hfo2 zro2 ... See more keywords

Strain-induced antipolar phase in hafnia stabilizes robust thin-film ferroelectricity

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recommendations! Published in 2022 at "Science Advances"

DOI: 10.1126/sciadv.add5953

Abstract: Hafnia (HfO2) is a promising candidate for next-generation ferroelectric devices due to its robust ferroelectricity at reduced dimensions and its compatibility with silicon technology. Unfortunately, the origin of robust ferroelectricity and the underlying phase transition… read more here.

Keywords: hafnia; ferroelectricity; phase transition; strain ... See more keywords
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A key piece of the ferroelectric hafnia puzzle

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recommendations! Published in 2020 at "Science"

DOI: 10.1126/science.abd1212

Abstract: Dipolar slices explain the origin of ferroelectricity in a material now used for memory devices The ferroelectrics community is witnessing one of those moments in which serendipity changes the course of science. The story of… read more here.

Keywords: piece ferroelectric; hafnia; ferroelectric hafnia; hfo2 ... See more keywords
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Intrinsic Resistance to Colistin in the Genus Hafnia

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recommendations! Published in 2023 at "Journal of Clinical Microbiology"

DOI: 10.1128/jcm.01326-22

Abstract: A bacterial species is considered to be intrinsically resistant to an antimicrobial when nearly all of the wild-type isolates (i.e., those without acquired resistance) exhibit minimum inhibitory concentration (MIC) values that are sufficiently high such… read more here.

Keywords: hafnia; intrinsic resistance; susceptibility testing; colistin ... See more keywords
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Ferroelectric hafnium oxide for ferroelectric random-access memories and ferroelectric field-effect transistors

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recommendations! Published in 2018 at "Mrs Bulletin"

DOI: 10.1557/mrs.2018.92

Abstract: Ferroelectrics are promising for nonvolatile memories. However, the difficulty of fabricating ferroelectric layers and integrating them into complementary metal oxide semiconductor (CMOS) devices has hindered rapid scaling. Hafnium oxide is a standard material available in… read more here.

Keywords: hafnium oxide; hafnia; ferroelectric random; field ... See more keywords