title: Quantum critical fluctuations in layered YFe2Al10.
abstract: The absence of thermal fluctuations at T = 0 makes it possible to observe the inherently quantum mechanical nature of systems where the competition among correlations leads to different types of collective ground states. Our high precision measurements of the magnetic susceptibility, specific heat, and electrical resistivity in the layered compound YFe2Al10 demonstrate robust field-temperature scaling, evidence that this system is naturally poised without tuning on the verge of ferromagnetic order that occurs exactly at T = 0, where magnetic fields drive the system away from this quantum critical point and restore normal metallic behavior.
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794; and.
authors.forename: L S
authors.initials: LS
authors.lastname: Wu
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794; and.
authors.forename: M S
authors.initials: MS
authors.lastname: Kim
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794; and.
authors.forename: K
authors.initials: K
authors.lastname: Park
authors.affiliation: Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973.
authors.forename: A M
authors.initials: AM
authors.lastname: Tsvelik
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794; and Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973 maronson@bnl.gov.
authors.forename: M C
authors.initials: MC
authors.lastname: Aronson
keywords: dynamical scaling; ferromagnet; quantum criticality