@article{WOS:000646763400004,
 abstract = {We demonstrate a mechanism for realizing ferrimagnetic metal,
antiferromagnetic half-metal, and paramagnetic metal phases by tuning
the onsite Coulomb repulsion U in a band insulator. In a simple model of
a correlated band insulator, namely the ionic Hubbard model at
half-filling, and in the presence of a second neighbor hopping, we show
that as U is increased, first he insulating band gap is suppressed to
zero at a critical U-1 and remains zero within the paramagnetic metallic
phase. Interestingly, at a larger U-c, ferrimagnetic order turns on,
leading to a ferrimagnetic metallic phase for U-c < U < U-2. For U >
U-2, the system exhibits an antiferromagnetic half-metallic phase,
followed finally by a transition into an antiferromagnetic Mott
insulator. Our results, based on dynamical mean-field theory, suggest
alternate routes for achieving magnetically ordered metallic and
half-metallic phases which have potential applications in spintronics.},
 article-number = {155132},
 author = {Bag, Soumen and Garg, Arti and Krishnamurthy, H. R.},
 doi = {10.1103/PhysRevB.103.155132},
 eissn = {2469-9969},
 issn = {2469-9950},
 journal = {PHYSICAL REVIEW B},
 month = {APR 16},
 number = {15},
 orcid-numbers = {Garg, Arti/0000-0002-1905-2463},
 title = {Correlation driven metallic and half-metallic phases in a band insulator},
 unique-id = {WOS:000646763400004},
 volume = {103},
 year = {2021}
}