title: Evidence for a quantum phase transition in Pr2-xCe(x)CuO4-delta from transport measurements.
abstract: The doping and temperature dependences of the Hall coefficient, R(H), and ab-plane resistivity in the normal state down to 350 mK is reported for oriented films of the electron-doped high-T(c) superconductor Pr(2-x)Ce(x)CuO(4-delta). The doping dependences of beta (rho=rho(0)+ATbeta) and R(H) (at 350 mK) suggest a quantum phase transition at a critical doping near x=0.165.
authors.affiliation: Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Dagan
authors.forename: M M
authors.initials: MM
authors.lastname: Qazilbash
authors.forename: C P
authors.initials: CP
authors.lastname: Hill
authors.forename: V N
authors.initials: VN
authors.lastname: Kulkarni
authors.forename: R L
authors.initials: RL
authors.lastname: Greene