@article{ISI:000448165800002,
 abstract = {We study a two-flavor fermion model where each of the flavors form a
Sachdev-Ye-Kitaev (SYK) system with arbitrary q -body interactions. The
crucial new element is an all-to-all r -body interaction between the two
flavors. At high temperatures, the model shows a strange metal phase
where both flavors are gapless, similar to the usual single-flavor SYK
model. Upon reducing temperature, the coupled system undergoes
transitions to previously unseen phases in the SYK framework-first, a
strange half-metal phase where one flavor remains a strange metal while
the other is gapped, and second, an insulating phase of the Mott kind
where both flavors are gapped. At a fixed low temperature, we obtain
transitions between these phases by tuning the relative fraction of
sites for each flavor. We discuss the physics of these phases and the
nature of transitions between them. This work provides an example of an
instability of the strange metal with potential to provide new routes to
study strongly correlated systems through the rich physics contained in
SYK-like models.},
 article-number = {165135},
 author = {Haldar, Arijit and Shenoy, Vijay B.},
 doi = {10.1103/PhysRevB.98.165135},
 eissn = {2469-9969},
 issn = {2469-9950},
 journal = {PHYSICAL REVIEW B},
 month = {OCT 24},
 number = {16},
 orcid-numbers = {Haldar, Arijit/0000-0003-1962-1707},
 times-cited = {2},
 title = {Strange half-metals and Mott insulators in Sachdev-Ye-Kitaev models},
 unique-id = {ISI:000448165800002},
 volume = {98},
 year = {2018}
}