title: Giant volume magnetostriction and colossal magnetoresistance at room temperature in La(0.7)Ba(0.3)MnO(3).
abstract: Giant volume magnetostriction at room temperature is found for the first time in a La(0.7)Ba(0.3)MnO(3) single crystal, achieving 2.54 × 10(-4) in a magnetic field of 8.2 kOe. An even greater value of the volume magnetostriction, equal to 4 × 10(-4) in the same magnetic field, is observed at the Curie point T(C) = 310 K.Volume magnetostriction and magnetoresistance exhibit similar dependences on temperature and magnetic field in the T(C)-region, that is explained by the presence in this compound of a magnetic two-phase ferromagnetic-antiferromagnetic state due to strong s-d exchange.
authors.affiliation: M V Lomonosov Moscow State University, Leninskie Gory, 119992 Moscow, Russia.
authors.forename: R V
authors.initials: RV
authors.lastname: Demin
authors.forename: L I
authors.initials: LI
authors.lastname: Koroleva
authors.forename: Ya M
authors.initials: YM
authors.lastname: Mukovskii