Novel vertically aligned nanocomposite of Bi_(2)WO_(6)-Co_(3)O_(4) with room-temperature multiferroic and anisotropic optical response  

作　　者：Leigang Li Shikhar Misra Xingyao Gao Juncheng Liu Han Wang Jijie Huang Bruce Zhang Ping Lu Haiyan Wang 

机构地区：[1]School of Materials Engineering,Purdue University,West Lafayette,Indiana,47907,USA [2]School of Electrical and Computer Engineering,Purdue University,West Lafayette,Indiana,47907,USA [3]Sandia National Laboratory,Albuquerque,New Mexico,87185,USA

出　　处：《Nano Research》2021年第12期4789-4794,共6页纳米研究（英文版）

基　　金：This work is supported by the U.S.Office of Naval Research(ONR,N00014-20-1-2600);The high-resolution TEM/STEM characterization at Purdue University is supported by the U.S.National Science Foundation(Nos.DMR-1565822 and DMR-2016453)。

摘　　要：A new vertically aligned nanocomposite(VAN)structure based on two-dimensional(2D)layered oxides has been designed and self-assembled on both LaAlO_(3)(001)and SrTiO3(001)substrates.The new VAN structure consists of epitaxially grown Co_(3)O_(4) nanopillars embedded in the Bi_(2)WO_(6) matrix with a unique 2D layered structure,as evidenced by the microstructural analysis.Physical property measurements show that the new Bi_(2)WO_(6)-Co_(3)O_(4) VAN structure exhibits strong ferromagnetic and piezoelectric response at room temperature as well as anisotropic permittivity response.This work demonstrates a new approach in processing multifunctional VANs structure based on the layered oxide systems towards future nonlinear optics,ferromagnets,and multiferroics.

关 键 词：vertically aligned nanocomposite(VAN) multiferroics Aurivillius oxides layered oxides Co_(3)O_(4) Bi_(2)WO_(6) 

分 类 号：TB383[一般工业技术—材料科学与工程]