title: Phase diagram of electrostatically doped SrTiO3.
abstract: Electric double layer transistor configurations have been employed to electrostatically dope single crystals of insulating SrTiO(3). Here we report on the results of such doping over broad ranges of temperature and carrier concentration employing an ionic liquid as the gate dielectric. The surprising results are, with increasing carrier concentration, an apparent carrier-density dependent conductor-insulator transition, a regime of the anomalous Hall effect, suggesting magnetic ordering, and finally the appearance of superconductivity. The possible appearance of magnetic order near the boundary between the insulating and superconducting regimes is reminiscent of effects associated with quantum critical behavior in some complex compounds.
authors.affiliation: School of Physics and Astronomy, University of Minnesota, 116 Church St. SE, Minneapolis, Minnesota 55455, USA.
authors.forename: Yeonbae
authors.initials: Y
authors.lastname: Lee
authors.forename: Colin
authors.initials: C
authors.lastname: Clement
authors.forename: Jack
authors.initials: J
authors.lastname: Hellerstedt
authors.forename: Joseph
authors.initials: J
authors.lastname: Kinney
authors.forename: Laura
authors.initials: L
authors.lastname: Kinnischtzke
authors.forename: Xiang
authors.initials: X
authors.lastname: Leng
authors.forename: S D
authors.initials: SD
authors.lastname: Snyder
authors.forename: A M
authors.initials: AM
authors.lastname: Goldman