Electronic phase transitions under hydrostatic pressure in LaMnO3 (111) bilayers sandwiched between LaAlO3
Type
ArticleKAUST Department
Computational Physics and Materials Science (CPMS)Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2016-01-13Permanent link to this record
http://hdl.handle.net/10754/594841
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Using ab initio calculations, we investigate the effect of hydrostatic pressure on the electronic structure of LaMnO3 (111) bilayers sandwiched between LaAlO3. In the ideal heterostructure we observe Dirac cones at the Fermi energy. However, octahedral tiltings open a band gap and thus destroy the Dirac nature. We show that the effect of the tiltings can be suppressed by hydrostatic pressure from 40 GPa to 60 GPa. At higher pressure further phase transitions are encountered.Citation
Electronic phase transitions under hydrostatic pressure in LaMnO 3 (111) bilayers sandwiched between LaAlO 3 2016, 93 (3) Physical Review BPublisher
American Physical Society (APS)Journal
Physical Review BAdditional Links
http://link.aps.org/doi/10.1103/PhysRevB.93.035117ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevB.93.035117