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Title: Resistivity and thermoelectric-power measurements of Pr sub x Y sub 1 minus x Ba sub 2 Cu sub 3 O sub 7 minus. delta. up to 1200 K and an electronic-structure analysis

Abstract

We report measurements of absolute thermoelectric power and resistivity in Pr{sub {ital x}}Y{sub 1{minus}{ital x}}Ba{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}, as function of {ital x} and {delta}, over a wide temperature range. At high temperature, the substitution of Pr for Y does not affect the thermopower and resistivity; Pr behaves then as a trivalent ion: Pr{sup 3+}. For small {ital x} and {delta} the effects of substitution of Y by Pr and of oxygen deficiency on the low-temperature resistivity are additive. A simple electronic-structure model is proposed to account for thermopower as function of temperature, {ital x}, and {delta}.

Authors:
; ;  [1];  [2]
  1. Department of Physics, Technion-Israel Institute of Technology, 32000 Haifa, Israel (IL)
  2. Department of Physics, University of Miami, Box 248046, Coral Gables, Florida 33156 (USA)
Publication Date:
OSTI Identifier:
5734977
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter; (USA)
Additional Journal Information:
Journal Volume: 43:4; Journal ID: ISSN 0163-1829
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BARIUM OXIDES; ELECTRIC CONDUCTIVITY; THERMOELECTRIC PROPERTIES; COPPER OXIDES; YTTRIUM OXIDES; ELECTRONIC STRUCTURE; HIGH TEMPERATURE; PRASEODYMIUM ADDITIONS; QUANTITY RATIO; SUPERCONDUCTIVITY; ALKALINE EARTH METAL COMPOUNDS; ALLOYS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PRASEODYMIUM ALLOYS; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; 360204* - Ceramics, Cermets, & Refractories- Physical Properties

Citation Formats

Fisher, B, Genossar, J, Patlagan, L, and Ashkenazi, J. Resistivity and thermoelectric-power measurements of Pr sub x Y sub 1 minus x Ba sub 2 Cu sub 3 O sub 7 minus. delta. up to 1200 K and an electronic-structure analysis. United States: N. p., 1991. Web. doi:10.1103/PhysRevB.43.2821.
Fisher, B, Genossar, J, Patlagan, L, & Ashkenazi, J. Resistivity and thermoelectric-power measurements of Pr sub x Y sub 1 minus x Ba sub 2 Cu sub 3 O sub 7 minus. delta. up to 1200 K and an electronic-structure analysis. United States. https://doi.org/10.1103/PhysRevB.43.2821
Fisher, B, Genossar, J, Patlagan, L, and Ashkenazi, J. 1991. "Resistivity and thermoelectric-power measurements of Pr sub x Y sub 1 minus x Ba sub 2 Cu sub 3 O sub 7 minus. delta. up to 1200 K and an electronic-structure analysis". United States. https://doi.org/10.1103/PhysRevB.43.2821.
@article{osti_5734977,
title = {Resistivity and thermoelectric-power measurements of Pr sub x Y sub 1 minus x Ba sub 2 Cu sub 3 O sub 7 minus. delta. up to 1200 K and an electronic-structure analysis},
author = {Fisher, B and Genossar, J and Patlagan, L and Ashkenazi, J},
abstractNote = {We report measurements of absolute thermoelectric power and resistivity in Pr{sub {ital x}}Y{sub 1{minus}{ital x}}Ba{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}, as function of {ital x} and {delta}, over a wide temperature range. At high temperature, the substitution of Pr for Y does not affect the thermopower and resistivity; Pr behaves then as a trivalent ion: Pr{sup 3+}. For small {ital x} and {delta} the effects of substitution of Y by Pr and of oxygen deficiency on the low-temperature resistivity are additive. A simple electronic-structure model is proposed to account for thermopower as function of temperature, {ital x}, and {delta}.},
doi = {10.1103/PhysRevB.43.2821},
url = {https://www.osti.gov/biblio/5734977}, journal = {Physical Review, B: Condensed Matter; (USA)},
issn = {0163-1829},
number = ,
volume = 43:4,
place = {United States},
year = {Fri Feb 01 00:00:00 EST 1991},
month = {Fri Feb 01 00:00:00 EST 1991}
}