High-pressure transport properties of [ital M][sub 2[minus][ital x]]Ce[sub [ital x]]CuO[sub 4[minus][ital y]] single crystals

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.48.615· OSTI ID:5578887

Crusellas, M A; Fontcuberta, J; Pinol, S ^[1]; Beille, J; Grenet, T ^[2]

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1. Institut de Ciencia de Materials de Barcelona, Consell Superior de Investigacions Cientifiques, Campus Universitat Autonoma Barcelona, 08193 Bellaterra (Spain)
2. Laboratorie Louis Neel, CNRS, 25, Avenue des Martyrs BP 166X, 38042 Grenoble (France)

The transport properties of the electron-doped cuprates [ital M][sub 2[minus][ital x]]Ce[sub [ital x]]CuO[sub 4] ([ital M]=Pr, Nd, and Sm) single crystals are investigated under hydrostatic pressure up to 2 GPa. The effects of pressure on both the [ital c]-axis ([rho][sub [ital c]]) and the in-plane ([rho][sub ab]) resistivity are measured from room temperature down to the superconducting state. It is found that at 300 K, ln[rho][sub ab]/[ital dP][approx][ital d] ln[rho][sub [ital c]]/[ital dP][approx][minus]3% GPa[sup [minus]1]. The pressure does not change the temperature dependence of the normal-state resistivity, which at high temperature in both directions follows a [rho][similar to][ital A]([ital P])[ital T][sup 2] law, but the coefficient [ital A]([ital P]) lowers as pressure is increased. Moreover, we have found that for any lanthanide host (Pr, Sm, and Nd), the onset of superconductivity does not change with pressure ([ital P][lt]2 GPa). These experimental results raise questions on the significance of the already proposed general behavior of ln[ital T][sub [ital c]]/[ital dP] on [ital T][sub [ital c]] and on the claimed antisymmetry'' of the pressure dependence of [ital T][sub [ital c]] in electron-doped and hole-doped high-temperature superconductors.

• OSTI ID: 5578887
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:1; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HIGH-TC SUPERCONDUCTORS
HOLES
LEPTONS
MONOCRYSTALS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
SAMARIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TRANSPORT THEORY
VERY HIGH PRESSURE