Stages of epitaxial film formation

Abstract

345-3366Rcceiit rs~ieriinc.nttil results for thc: cpit asy of f.cs.cb. nictals OII nllcitli hulidt: clcti~iigccc plaiios arc c:ompii.rfvl 1vit.h theoretical motlvls. Tlio film foriiintioii is srihcli\Iidcd into t1irc.t. stcigt:s: ( 1 ) I he ~iiiclc;ition niicl iiiitial growth sttip:, ( 2 ) tlir (wiilesrciicc: sttigc, arid ( 3 ) tlic. filliiig-in stripe. T l i c clisciissioii of stag(: ( 1 ) sugpc'st, tliat. t h c s ctpitasiiil orirntatioii is i i o t forriiett tlriririg iiriclcat ioii but dts\~lops tlririiig thcs initial gro\vtli of wysttils. 111 stapcs ( 2 ) mid ( 3 ) the i r i t crfticitil ciicsrpy be1 \ v t~i i tho crystals and thrir frev siirfacc: cncrgy p11i.y a riiajor rolv iii tlclcrmiriing the coal(wc:ncc procc~ss. The iiiiportaiiw of t he twin boundary energy arid of c:hcrriical react ions is rrnphasizrtl.Eiiipliasis is p1at:ctl on t.hc influclice of thc: sulistrtit.c siirfacc: coiitlit ion aiid of rcsidual gasw or1 f i l r r i growth. 'I'hc disciissioii shows thnt t.lic growth of f.c.c. iiitdals on alkali halidcs is highly spccific for each film-siibstrutc pair aiid for the rxpc~rinicwtul coiiditioris.Kcucrc csperiiiiciitello Eigcbiiissc uber die Epituxic von k.f.z.-MeLtillcn nuf Alkali-hrtlogciii~-Spaltfliic.hc:ri ~-e r d~r i iriit. t.heorc:tischcii Modelleii vt:rglichcn. Die Hildung der Schicht wird in drci Stadieii niitert.tiil1 : (1) die Keimliildung uiid das Anfangswachstiim.(2) dus Kotilcsxeiix-StAdiuin, iiiitl ( 3 ) das Stadiiim der Schlit,Duiig tlt!r Liicken. Uio Diskiissioii dcs c.rstcii Stadiiinis lduft dararif hiriaus, dalJ dio cpit t i l itischc Oriciitieriing iiicht \v&hrciid der l<einit)ildung, soridwii hcirri AnfAiigswcichstiiiii der Kriutnllc erfolgl.

Low-loss plasmonic metamaterial based on epitaxial gold monocrystal film

“…In the past, epitaxial growth of gold and other f.c.c. metals was demonstrated and thoroughly investigated for alkali-halide cubic crystals NaCl and KCl [10,11]. In most of the cases, however, the growing procedure was complicated by the requirement of contaminating gases [12] or electron irradiation of the substrate [13], and often produced gold and silver films with (111) fibre texture [12,14].…”