title: Critical behavior of metal-insulator transition in La1-(x)Sr(x)VO3.
abstract: Critical behavior of the metal-insulator transition (MIT) coupled with spin/orbital correlations has been investigated for single crystals of La1-(x)Sr(x)VO3. In the paramagnetic (PM) metal phase (x > 0.260), the precursor to the MIT manifests itself as an enhancement of carrier effective mass. In the antiferromagnetic (AF) metal phase (0.178 < or = x < or = 0.260), the carrier density decreases and the correlation of the orbital seems to evolve towards the MIT (x = 0.178). In the AF insulating phase (x < 0.178), the distinct first-order structural phase transition occurs with the decrease of temperature, perhaps concomitantly with the orbital ordering.
authors.affiliation: Joint Research Center for Atom Technology (JRCAT), Tsukuba 305-0046, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Miyasaka
authors.forename: T
authors.initials: T
authors.lastname: Okuda
authors.forename: Y
authors.initials: Y
authors.lastname: Tokura