Ab initio investigation of electronic and magnetic properties of antiferromagnetic/ferroelectric LaMnO3/BaTiO3 interface
We investigate the structural, electronic and magnetic properties of LaMnO _3 /BaTiO _3 heterostructure by means of ab initio calculations within the GGA+ U approach. We consider the heterostructure when ferroelectric polarization in the BaTiO _3 film is oriented perpendicular to the LaMnO _3 substr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab940e |
| Summary: | We investigate the structural, electronic and magnetic properties of LaMnO _3 /BaTiO _3 heterostructure by means of ab initio calculations within the GGA+ U approach. We consider the heterostructure when ferroelectric polarization in the BaTiO _3 film is oriented perpendicular to the LaMnO _3 substrate. We present atom and spin-resolved density of states calculations for LaMnO _3 /BaTiO _3 heterostructure with different number of BaTiO _3 overlayers as well as layer-resolved spectra for the conducting heterostructure. We found that the LaMnO _3 /BaTiO _3 heterostructure becomes conducting with a significant spin polarization indicating that the interface becomes ferromagnetically ordered. The propose concept of a ferroelectrically controlled interface ferromagnetism that offers the possibility to design novel electronic devices. |
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| ISSN: | 2053-1591 |