دورية أكاديمية
أعرض في EDS

Targeted chemical pressure yields tuneable millimetre-wave dielectric.

التفاصيل البيبلوغرافية
العنوان: Targeted chemical pressure yields tuneable millimetre-wave dielectric.
المؤلفون: Dawley NM; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA., Marksz EJ; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA.; National Institute of Standards and Technology, Boulder, CO, USA., Hagerstrom AM; National Institute of Standards and Technology, Boulder, CO, USA., Olsen GH; School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA., Holtz ME; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA.; School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA., Goian V; Institute of Physics ASCR, Prague, Czech Republic., Kadlec C; Institute of Physics ASCR, Prague, Czech Republic., Zhang J; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA., Lu X; National Institute of Standards and Technology, Boulder, CO, USA., Drisko JA; National Institute of Standards and Technology, Boulder, CO, USA., Uecker R; Leibniz-Institut für Kristallzüchtung, Berlin, Germany., Ganschow S; Leibniz-Institut für Kristallzüchtung, Berlin, Germany., Long CJ; National Institute of Standards and Technology, Boulder, CO, USA., Booth JC; National Institute of Standards and Technology, Boulder, CO, USA., Kamba S; Institute of Physics ASCR, Prague, Czech Republic., Fennie CJ; School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA., Muller DA; School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA., Orloff ND; National Institute of Standards and Technology, Boulder, CO, USA., Schlom DG; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA. schlom@cornell.edu.; Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY, USA. schlom@cornell.edu.
المصدر: Nature materials [Nat Mater] 2020 Feb; Vol. 19 (2), pp. 176-181. Date of Electronic Publication: 2019 Dec 23.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101155473 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1476-4660 (Electronic) Linking ISSN: 14761122 NLM ISO Abbreviation: Nat Mater Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: London, UK : Nature Pub. Group, [2002]-
مستخلص: Epitaxial strain can unlock enhanced properties in oxide materials, but restricts substrate choice and maximum film thickness, above which lattice relaxation and property degradation occur. Here 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 today's best millimetre-wave tuneable dielectric, the epitaxially strained 50-nm-thick n = 6 (SrTiO 3 ) n SrO Ruddlesden-Popper dielectric grown on (110) DyScO 3 . The defect mitigating nature of (SrTiO 3 ) n SrO results in unprecedented low loss at frequencies up to 125 GHz. No barium-containing Ruddlesden-Popper titanates are known, but the resulting atomically engineered superlattice material, (SrTiO 3 ) n-m (BaTiO 3 ) m SrO, 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. As tuneable dielectrics are key constituents of emerging millimetre-wave high-frequency devices in telecommunications, our findings could lead to higher performance adaptive and reconfigurable electronics at these frequencies.
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معلومات مُعتمدة: DE-SC0002334 U.S. Department of Energy (DOE); DE-SC0002334 U.S. Department of Energy (DOE); DE-SC0002334 U.S. Department of Energy (DOE); DE-SC0002334 U.S. Department of Energy (DOE); DE-SC0002334 U.S. Department of Energy (DOE); DE-SC0002334 U.S. Department of Energy (DOE); DMR-1719875 National Science Foundation (NSF); DMR-1719875 National Science Foundation (NSF); DMR-1719875 National Science Foundation (NSF); DMR-1719875 National Science Foundation (NSF); 18-09265S Grantová Agentura České Republiky (Grant Agency of the Czech Republic); 18-09265S Grantová Agentura České Republiky (Grant Agency of the Czech Republic); 18-09265S Grantová Agentura České Republiky (Grant Agency of the Czech Republic); SOLID21 - CZ.02.1.01/0.0/0.0/16_019/0000760 Ministerstvo Školství, Mládeže a Tělovýchovy (Ministry of Education, Youth and Sports); SOLID21 - CZ.02.1.01/0.0/0.0/16_019/0000760 Ministerstvo Školství, Mládeže a Tělovýchovy (Ministry of Education, Youth and Sports); SOLID21 - CZ.02.1.01/0.0/0.0/16_019/0000760 Ministerstvo Školství, Mládeže a Tělovýchovy (Ministry of Education, Youth and Sports)
تواريخ الأحداث: Date Created: 20191225 Latest Revision: 20210119
رمز التحديث: 20231215
DOI: 10.1038/s41563-019-0564-4
PMID: 31873229
قاعدة البيانات: MEDLINE
الوصف
تدمد:1476-4660
DOI:10.1038/s41563-019-0564-4