skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Structural and physical properties of the metal (M) substituted YBa/sub 2/Cu/sub 3/. sqrt. /sub x/M/sub x/O/sub 7/. sqrt. /sub y/ perovskite

Abstract

The mixed YBa/sub 2/Cu/sub 3/..sqrt../sub x/M/sub x/O/sub 7/..sqrt../sub y/ (M = Ni, Zn, Fe, Co, and Al) phases have been characterized for their structural, magnetic, and superconducting properties. The oxygen content in these phases is dependent on the nature and the amount of doping, especially for Co and Fe. The material remains orthorhombic when Cu is replaced by Ni or Zn whereas it evolves to tetragonal symmetry for the Fe-, Co-, and Al-doped compounds when x exceeds 0.05. Evidence for the major substitution of Co in the Cu-O chains only is obtained by means of thermogravimetric analysis and neutron diffraction measurements. The room-temperature Moessbauer spectra of the Fe-doped compounds consist of three doublets; their site assignments are proposed. dc resistance and ac susceptibility have shown that both magnetic and diamagnetic ions destroy T/sub c/ in a similar manner. At x = 0.2 the Fe and Co compounds are tetragonal, superconduct at 50 K, and show a Curie-type magnetic behavior associated with a magnetic moment of 3.4..mu../sub B/ per doping atom. The origin of the orthorhombic-tetragonal transition and the importance of the Cu-O chains for superconductivity is discussed. The behavior of these materials with respect to magnetic impurities is apparently differentmore » from conventional Bardeen-Cooper-Schrieffer-type superconductors, and we believe that any new mechanism proposed must be mostly sensitive to local structural disorder« less

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Bell Communications Research Inc., 331 Newman Springs Road, Red Bank, New Jersey 07701
OSTI Identifier:
5221014
Resource Type:
Journal Article
Journal Name:
Phys. Rev. B: Condens. Matter; (United States)
Additional Journal Information:
Journal Volume: 37:13
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM OXIDES; CRYSTAL STRUCTURE; IMPURITIES; MAGNETIC PROPERTIES; SUPERCONDUCTIVITY; COPPER OXIDES; YTTRIUM OXIDES; ALUMINIUM ADDITIONS; COBALT ADDITIONS; DOPED MATERIALS; IRON ADDITIONS; NICKEL ADDITIONS; PEROVSKITES; ZINC ADDITIONS; ALKALINE EARTH METAL COMPOUNDS; ALLOYS; ALUMINIUM ALLOYS; BARIUM COMPOUNDS; CHALCOGENIDES; COBALT ALLOYS; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; IRON ALLOYS; MATERIALS; NICKEL ALLOYS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZINC ALLOYS; 360204* - Ceramics, Cermets, & Refractories- Physical Properties; 656100 - Condensed Matter Physics- Superconductivity

Citation Formats

Tarascon, J M, Barboux, P, Miceli, P F, Greene, L H, Hull, G W, Eibschutz, M, and Sunshine, S A. Structural and physical properties of the metal (M) substituted YBa/sub 2/Cu/sub 3/. sqrt. /sub x/M/sub x/O/sub 7/. sqrt. /sub y/ perovskite. United States: N. p., 1988. Web. doi:10.1103/PhysRevB.37.7458.
Tarascon, J M, Barboux, P, Miceli, P F, Greene, L H, Hull, G W, Eibschutz, M, & Sunshine, S A. Structural and physical properties of the metal (M) substituted YBa/sub 2/Cu/sub 3/. sqrt. /sub x/M/sub x/O/sub 7/. sqrt. /sub y/ perovskite. United States. https://doi.org/10.1103/PhysRevB.37.7458
Tarascon, J M, Barboux, P, Miceli, P F, Greene, L H, Hull, G W, Eibschutz, M, and Sunshine, S A. 1988. "Structural and physical properties of the metal (M) substituted YBa/sub 2/Cu/sub 3/. sqrt. /sub x/M/sub x/O/sub 7/. sqrt. /sub y/ perovskite". United States. https://doi.org/10.1103/PhysRevB.37.7458.
@article{osti_5221014,
title = {Structural and physical properties of the metal (M) substituted YBa/sub 2/Cu/sub 3/. sqrt. /sub x/M/sub x/O/sub 7/. sqrt. /sub y/ perovskite},
author = {Tarascon, J M and Barboux, P and Miceli, P F and Greene, L H and Hull, G W and Eibschutz, M and Sunshine, S A},
abstractNote = {The mixed YBa/sub 2/Cu/sub 3/..sqrt../sub x/M/sub x/O/sub 7/..sqrt../sub y/ (M = Ni, Zn, Fe, Co, and Al) phases have been characterized for their structural, magnetic, and superconducting properties. The oxygen content in these phases is dependent on the nature and the amount of doping, especially for Co and Fe. The material remains orthorhombic when Cu is replaced by Ni or Zn whereas it evolves to tetragonal symmetry for the Fe-, Co-, and Al-doped compounds when x exceeds 0.05. Evidence for the major substitution of Co in the Cu-O chains only is obtained by means of thermogravimetric analysis and neutron diffraction measurements. The room-temperature Moessbauer spectra of the Fe-doped compounds consist of three doublets; their site assignments are proposed. dc resistance and ac susceptibility have shown that both magnetic and diamagnetic ions destroy T/sub c/ in a similar manner. At x = 0.2 the Fe and Co compounds are tetragonal, superconduct at 50 K, and show a Curie-type magnetic behavior associated with a magnetic moment of 3.4..mu../sub B/ per doping atom. The origin of the orthorhombic-tetragonal transition and the importance of the Cu-O chains for superconductivity is discussed. The behavior of these materials with respect to magnetic impurities is apparently different from conventional Bardeen-Cooper-Schrieffer-type superconductors, and we believe that any new mechanism proposed must be mostly sensitive to local structural disorder},
doi = {10.1103/PhysRevB.37.7458},
url = {https://www.osti.gov/biblio/5221014}, journal = {Phys. Rev. B: Condens. Matter; (United States)},
number = ,
volume = 37:13,
place = {United States},
year = {1988},
month = {5}
}