Peters Jonathan J P, Bristowe Nicholas C, Rusu Dorin, Apachitei Geanina, Beanland Richard, Alexe Marin, Sanchez Ana M
Department of Physics, University of Warwick, Coventry CV4 7AL, U.K.
School of Physical Sciences, University of Kent, Canterbury CT2 7NH, U.K.
ACS Appl Mater Interfaces. 2020 Mar 4;12(9):10657-10663. doi: 10.1021/acsami.9b21619. Epub 2020 Feb 24.
The structural, electronic, and magnetic properties of interfaces between epitaxial LaSrMnO and PbTiO have been explored via atomic resolution transmission electron microscopy of a functional multiferroic tunnel junction. Measurements of the polar displacements and octahedral tilting show the competition between the two distortions at the interface and demonstrate strong dependence on the polarization orientation. The density functional theory provides information on the electronic and magnetic properties, where the interface termination plays a crucial role in the screening mechanisms.
通过对功能性多铁性隧道结进行原子分辨率透射电子显微镜研究，探索了外延LaSrMnO与PbTiO之间界面的结构、电子和磁性特性。对极位移和八面体倾斜的测量显示了界面处两种畸变之间的竞争，并证明了其对极化取向的强烈依赖性。密度泛函理论提供了有关电子和磁性特性的信息，其中界面终止在屏蔽机制中起着关键作用。
