Evidence for a quantum phase transition in Pr2-xCe(x)CuO4-delta from transport measurements

Y Dagan; M M Qazilbash; C P Hill; V N Kulkarni; R L Greene

doi:10.1103/PhysRevLett.92.167001

Evidence for a quantum phase transition in Pr2-xCe(x)CuO4-delta from transport measurements

Phys Rev Lett. 2004 Apr 23;92(16):167001. doi: 10.1103/PhysRevLett.92.167001. Epub 2004 Apr 21.

Authors

Y Dagan¹, M M Qazilbash, C P Hill, V N Kulkarni, R L Greene

Affiliation

¹ Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, Maryland 20742, USA.

PMID: 15169253
DOI: 10.1103/PhysRevLett.92.167001

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.