{"id":171,"date":"2019-04-03T00:56:02","date_gmt":"2019-04-02T15:56:02","guid":{"rendered":"https:\/\/www.shinkosha.com\/?page_id=171"},"modified":"2024-07-26T09:42:52","modified_gmt":"2024-07-26T00:42:52","slug":"sto","status":"publish","type":"page","link":"https:\/\/www.shinkosha.com\/english\/product\/epi_substrate\/sto\/","title":{"rendered":"Strontium Titanate"},"content":{"rendered":"
\n

Strontium Titanate<\/span>
SrTiO3<\/small><\/h1>\n

SrTiO3<\/sub> has a typical perovskite structure and it is widely used as a substrate for ferroelectric and superconductor thin films.
Our SrTiO3<\/sub> substrate has world-leading quality and production volume, and it is made by integrated production system starting from Verneuil crystal growth to the surface polishing.<\/p>\n<\/div>\n

\n

\"\"<\/p>\n

Nb:SrTiO3<\/sub> substrate with electrical conductivity and STEP substrates with atomically flat surface are also available. We hope our substrates can help your research.<\/span><\/p>\n<\/div>\n

\n

Characteristics<\/span><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Composition<\/span><\/th>\nSrTiO3<\/sub><\/td>\n<\/tr>\n
Crystal system<\/span><\/th>\nCubic<\/span><\/td>\n<\/tr>\n
Space group<\/span><\/th>\nPm3m (Perovskite)<\/td>\n<\/tr>\n
Lattice constant<\/span><\/th>\na=0.3905 nm<\/td>\n<\/tr>\n
Melting point<\/span><\/th>\n2080 \u2103<\/td>\n<\/tr>\n
Growth method<\/span><\/th>\nVerneuil method<\/span><\/td>\n<\/tr>\n
Density<\/span><\/th>\n5.122 g\/cm3<\/sup>(20 \u2103)<\/td>\n<\/tr>\n
Dielectric constant<\/span><\/th>\n310 (27\u2103,1 MHz)<\/td>\n<\/tr>\n
Thermal expansion coefficient<\/span><\/th>\n11.1\u00d710-6<\/sup>\/\u2103\uff08r.t.<\/span>\uff5e1000\u2103\uff09<\/td>\n<\/tr>\n
Phase transition<\/span><\/th>\n110 K\uff08tetragonal \u21d4 cubic<\/span>\uff09<\/td>\n<\/tr>\n
Refractive index<\/span><\/th>\n2.407 (at 589 nm)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n

Transmittance of SrTiO3<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

Standard specs<\/span><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/th>\nSrTiO3<\/sub><\/th>\n\n

Nb(0.05 wt%):SrTiO3<\/sub><\/p>\n

Nb\u22520.1 at%<\/p>\n<\/th>\n

\n

Nb(0.5 wt%):SrTiO3<\/sub><\/p>\n

Nb\u22521.0 at%<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

Purity<\/span><\/th>\n>99.98 %<\/td>\n>99.98 %<\/td>\n>99.98 %<\/td>\n<\/tr>\n
Resistivity<\/span> (\u03a9\u30fbcm)<\/th>\n>107<\/sup><\/td>\n7\uff5e10\u00d710-2<\/sup><\/td>\n3\uff5e7\u00d710-3<\/sup><\/td>\n<\/tr>\n
Career density<\/span> (cm-3<\/sup>)<\/th>\n\u2015<\/td>\n1\uff5e2\u00d71019<\/sup><\/td>\n1\uff5e2\u00d71020<\/sup><\/td>\n<\/tr>\n
Orientation<\/span> \uff08Tolerance<\/span>\uff1a\u00b10.5\u00b0<\/sup>\uff09<\/th>\n(100), (110), (111)<\/td>\n(100), (110), (111)<\/td>\n(100), (110), (111)<\/td>\n<\/tr>\n
\n

Size <\/span><\/span>(Outer size tolerance: \u00b10.1 mm \/ Thickness tolerance: \u00b10.05 mm)<\/span><\/p>\n<\/th>\n

\n

10\u00d710\u00d70.5t<\/p>\n

15\u00d715\u00d70.5t<\/p>\n<\/td>\n

\n

10\u00d710\u00d70.5t<\/p>\n

15\u00d715\u00d70.5t<\/p>\n<\/td>\n

\n

10\u00d710\u00d70.5t<\/p>\n

15\u00d715\u00d70.5t<\/p>\n<\/td>\n<\/tr>\n

Polishing<\/span><\/th>\nOne-side \/ Both-side<\/span><\/td>\nOne-side \/ Both-side<\/span><\/td>\nOne-side \/ Both-side<\/span><\/td>\n<\/tr>\n
Surface roughness<\/span><\/th>\n\n

Ra\u22661.0nm<\/p>\n

Rmax\u22665.0nm<\/p>\n<\/td>\n

\n

Ra\u22661.0nm<\/p>\n

Rmax\u22665.0nm<\/p>\n<\/td>\n

\n

Ra\u22661.0nm<\/p>\n

Rmax\u22665.0nm<\/p>\n<\/td>\n<\/tr>\n

Flatness<\/span> (\u03bb=632.8 nm)<\/th>\n10\u00d710\u00d70.5 t :\u2266\u03bb
15\u00d715\u00d70.5 t : \u22661.5\u03bb<\/span><\/td>\n		10\u00d710\u00d70.5 t :\u2266\u03bb
15\u00d715\u00d70.5 t : \u22661.5\u03bb<\/span><\/td>\n		10\u00d710\u00d70.5 t :\u2266\u03bb
15\u00d715\u00d70.5 t : \u22661.5\u03bb<\/span><\/td>\n<\/tr>\n
Options<\/span><\/th>\nSTEP substrate<\/a>
OFF substrate
Breakable substrate<\/a><\/td>\n		STEP substrate<\/a>
OFF substrate
Breakable substrate<\/a><\/td>\n		OFF substrate
Breakable substrate<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\u203bIf you are looking for other specs, please contact us.<\/span><\/div>\n","protected":false},"excerpt":{"rendered":"

Strontium TitanateSrTiO3 SrTiO3 has a typical perovskite structure and it is widely used as a substrate for ferroelectric and superconductor thin films.Our SrTiO3 substrate has world-leading quality and production volume, and it is made by integrated production system starting from Verneuil crystal growth to the surface polishing. Nb:SrTiO3 substrate with electrical conductivity and STEP substrates […]<\/p>\n","protected":false},"author":1,"featured_media":675,"parent":612,"menu_order":12,"comment_status":"closed","ping_status":"closed","template":"page-template-product-child.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-171","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nStrontium Titanate - SHINKOSHA Crystals for a bright future<\/title>\n<meta name=\"description\" content=\"Shinkosha is a leading company of oxide single crystal production. 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