Superconductivity and Localization in Nd2-xCexCuO4+δ-Reference-Cited by-同舟云学术

Superconductivity and Localization in Nd2-xCexCuO4+δ

Published:2003-05-20 Issue:10n12 Volume:17 Page:701-707
ISSN:0217-9849
Container-title:Modern Physics Letters B
language:en
Short-container-title:Mod. Phys. Lett. B

Author:

Ponomarev A. I.¹,Harus G. I.¹,Charikova T. B.¹,Ignatenkov A. N.¹,Sabirzjanova L. D.¹,Shelushinina N. G.¹,Tashlykov A. O.¹,Ivanov A. A.²

Affiliation:

1. Institute of Metal Physics, RAS, 620219 Ekaterinburg, Russia

2. Moscow Engineering Physics Institute, 115410 Moscow, Russia

Abstract

The in-plane resistivity, Hall effect (T = 77 K ) and SC-transition for some Nd 1.85- Ce 0.15 CuO 4+δ single crystal films are investigated at different nonstoichiometric disorder (δ). It is shown that with increasing of δ the Hall-coefficient for the most of the samples differs no more than twice but the normal state resistivity increases by a factor of five. SC-transition temperature decreases with essential broadening of the transition region. The observed evolution from homogeneous metallic (and superconducting) Nd 1.85 Ce 0.15 CuO 4+δ system to inhomogeneous dielectric one is described as Anderson-type disorder-induced transition in a two-dimensional electron system.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217984903005731

Reference10 articles.

1. Electronic structure of Nd-Ce-Cu-O, a Fermi liquid superconductor

2. Transport properties ofNd1.85Ce0.15CuO4+δcrystals before and after reduction

3. Hall effect in Nd1.85Ce0.15CuOy with controlled oxygen content

4. Smooth homogeneous HTSC thin films produced by laser deposition with flux separation

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