en
Scientific article
Open access
English

Pressure tuning of structure, superconductivity, and novel magnetic order in the Ce-underdoped electron-doped cuprate T ′−Pr1.3−x La0.7CexCuO4 ( x = 0.1 )

Published inPhysical review. B, vol. 96, no. 9, 094515
Publication date2017-09-14
First online date2017-09-14
Abstract

High-pressure neutron powder diffraction, muon-spin rotation, and magnetization studies of the structural, magnetic, and the superconducting properties of the Ce-underdoped superconducting (SC) electron-doped cuprate system with the Nd2CuO4 (the so-called T′) structure T′−Pr1.3−xLa0.7CexCuO4 with x=0.1 are reported. A strong reduction of the in-plane and out-of-plane lattice constants is observed under pressure. However, no indication of any pressure-induced phase transition from T′ to the K2NiF4 (the so-called T) structure is observed up to the maximum applied pressure of p = 11 GPa. Large and nonlinear increase of the short-range magnetic order temperature Tso in T′−Pr1.3−xLa0.7CexCuO4 (x=0.1) was observed under pressure. Simultaneous pressure causes a nonlinear decrease of the SC transition temperature Tc. All these experiments establish the short-range magnetic order as an intrinsic and competing phase in SC T′−Pr1.3-xLa0.7CexCuO4 (x=0.1). The observed pressure effects may be interpreted in terms of the improved nesting conditions through the reduction of the in-plane and out-of-plane lattice constants upon hydrostatic pressure.

eng
Keywords
  • Impurities in superconductors
  • Magnetism
  • Cuprates
  • High-temperature superconductors
  • AC susceptibility measurements
  • DC susceptibility measurements
  • Muon spin relaxation & rotation
  • Pressure techniques
Affiliation Not a UNIGE publication
Research group
Citation (ISO format)
GUGUCHIA, Z. et al. Pressure tuning of structure, superconductivity, and novel magnetic order in the Ce-underdoped electron-doped cuprate T ′−Pr<sub>1.3−x</sub> La<sub>0.7</sub>Ce<sub>x</sub>CuO<sub>4</sub> ( x = 0.1 ). In: Physical review. B, 2017, vol. 96, n° 9, p. 094515. doi: 10.1103/PhysRevB.96.094515
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal2469-9950
101views
49downloads

Technical informations

Creation07/12/2022 1:59:00 PM
First validation07/12/2022 1:59:00 PM
Update time03/16/2023 7:02:12 AM
Status update03/16/2023 7:02:09 AM
Last indexation02/01/2024 8:30:06 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack