The Role of Quantum Interference Effects in Normal-State Transport Properties of Electron-Doped Cuprates
Journal article, 2015

The normal-state resistivity of thin films of the infinite-layer electron-doped cuprate Sr (1-x) La (x) CuO (2 +/-delta) has been investigated. Under-doped samples, which clearly show a metal-to-insulator transition (MIT) at low temperatures, have allowed the determination of the fundamental physical mechanism behind the upturn of the resistivity, namely the quantum interference effects (QIEs) in three-dimensional systems. The occurrence of weak localization effects has been unambiguously proven by low-frequency voltage spectral density measurements, which show a linear dependence of the 1/f noise on the applied bias current at low temperatures. The identification of the QIEs at low temperatures has therefore allowed the determination of the high-temperature non-Fermi liquid metallic phase, which is dominated by a linear temperature dependence of the resistivity for all of the samples investigated.

Electron-doped cuprates

Superconductivity

Metal-insulator-transition

Author

P. Orgiani

SPIN CNR Institute - Salerno

Laboratorio Nazionale TASC

A. Galdi

SPIN CNR Institute - Salerno

University of Salerno

C. Sacco

University of Salerno

SPIN CNR Institute - Salerno

Riccardo Arpaia

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Sophie Charpentier

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Floriana Lombardi

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

C. Barone

University of Salerno

SPIN CNR Institute - Salerno

S. Pagano

SPIN CNR Institute - Salerno

University of Salerno

D. G. Schlom

Cornell University

L. Maritato

SPIN CNR Institute - Salerno

University of Salerno

Journal of Superconductivity and Novel Magnetism

1557-1939 (ISSN) 1557-1947 (eISSN)

Vol. 28 12 3481-3486

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Subject Categories

Nano Technology

DOI

10.1007/s10948-015-3209-0

More information

Latest update

4/12/2018