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    Electronic phase transitions under hydrostatic pressure in LaMnO3 (111) bilayers sandwiched between LaAlO3

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    PhysRevB.93.035117.pdf
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    Type
    Article
    Authors
    Tahini, Hassan Ali cc
    Cossu, Fabrizio
    Singh, Nirpendra cc
    Smith, S. C.
    Schwingenschlögl, Udo cc
    KAUST Department
    Computational Physics and Materials Science (CPMS)
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2016-01-13
    Permanent link to this record
    http://hdl.handle.net/10754/594841
    
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    Abstract
    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 B
    Publisher
    American Physical Society (APS)
    Journal
    Physical Review B
    DOI
    10.1103/PhysRevB.93.035117
    Additional Links
    http://link.aps.org/doi/10.1103/PhysRevB.93.035117
    ae974a485f413a2113503eed53cd6c53
    10.1103/PhysRevB.93.035117
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; Computational Physics and Materials Science (CPMS)

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