Wee Sung Hun, Goyal Amit, More Karren L, Specht Eliot
Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Nanotechnology. 2009 May 27;20(21):215608. doi: 10.1088/0957-4484/20/21/215608. Epub 2009 May 6.
A unique, three-dimensional (3D), biaxially textured, MgO, nanofence comprised of single crystal MgO nanobelt segments or links was synthesized via epitaxial growth on (100) SrTiO(3) substrates. Individual single crystal MgO nanobelt segments comprising the nanofence have a square cross-section with dimensions in the range of 10-20 nm and with lengths in the range from 100 nm up to 1 microm. X-ray diffraction shows that the 3D MgO nanofence has an epitaxial relation with (100) SrTiO(3) substrates with a cube-on-cube, {100}100 orientation and with values of the full width at half-maximum of the (200) omega-scan and the (110) varphi-scan at 4.5 degrees and 5.5 degrees , respectively. Such a biaxially textured oxide nanofence with single crystal segments can be used as a 3D nanotemplated substrate for epitaxial growth of wide-ranging, 3D, electronic, magnetic and electromagnetic nanodevices.
通过在(100)SrTiO(3)衬底上进行外延生长,合成了一种独特的三维(3D)双轴织构MgO纳米围栏,它由单晶MgO纳米带段或链组成。构成纳米围栏的单个单晶MgO纳米带段具有方形横截面,尺寸范围为10 - 20纳米,长度范围从100纳米到1微米。X射线衍射表明,3D MgO纳米围栏与(100)SrTiO(3)衬底具有外延关系,其取向为立方对立方,{100}100,并且(200)ω扫描和(110)φ扫描的半高宽值分别为4.5度和5.5度。这种具有单晶段的双轴织构氧化物纳米围栏可作为3D纳米模板衬底,用于外延生长各种3D电子、磁性和电磁纳米器件。