title: Spontaneous structural distortion and quasi-one-dimensional quantum confinement in a single-phase compound.
abstract: Oxide heterointerfaces often trigger unusual electronic properties that are absent in respective bulks. Here, direct evidence is offered for spontaneously assembled local structural distortions in a single-phase bulk, which confine electrons to within an atomic layer with notable orbital reconstruction and coupling, close the forbidden band, induce a ferromagnetic ordering, and give rise to a strongly anisotropic, spin-polarized quasi-one-dimensional electron gas.
authors.affiliation: WPI Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan. zcwang@wpi-aimr.tohoku.ac.jp
authors.forename: Zhongchang
authors.initials: Z
authors.lastname: Wang
authors.forename: Lin
authors.initials: L
authors.lastname: Gu
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Saito
authors.forename: Susumu
authors.initials: S
authors.lastname: Tsukimoto
authors.forename: Masaru
authors.initials: M
authors.lastname: Tsukada
authors.forename: Frank
authors.initials: F
authors.lastname: Lichtenberg
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Ikuhara
authors.forename: Johannes Georg
authors.initials: JG
authors.lastname: Bednorz
mesh_terms: D007811:Lanthanum / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D011789:Quantum Theory; D014025:Titanium / Q000737:chemistry*
chemical_list: D007811:Lanthanum; D014025:Titanium; D010100:Oxygen