Targeted chemical pressure yields tuneable millimetre-wave dielectric

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00539813" target="_blank" >RIV/68378271:_____/20:00539813 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41563-019-0564-4" target="_blank" >https://doi.org/10.1038/s41563-019-0564-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41563-019-0564-4" target="_blank" >10.1038/s41563-019-0564-4</a>

Result language
angličtina
Original language name
Targeted chemical pressure yields tuneable millimetre-wave dielectric
Original language description
We employ a chemical alternative to epitaxial strain by providing targeted chemical pressure, distinct from random doping, to induce a ferroelectric instability with the strategic introduction of barium into todayś best millimetre-wave tuneable dielectric, the epitaxially strained 50-nm-thick n=6 (SrTiO3)nSrO results in unprecedented low loss at frequencies up to 125 GHz. The resulting atomically engineered superlattice material, (SrTiO3)n-m(BaTiO3)mSrO, enables low-loss, tuneable dielectric properties to be achieved with lower epitaxial strain and a 200% improvement in the figure of merit at commercially relevant millimetre-wave frequencies.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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