Magnetic order and superconductivity in Y sub 1 minus x Pr sub x Ba sub 2 Cu sub 3 O sub 7

Journal Article · Sun Oct 01 04:00:00 UTC 1989 · Physical Review (Section) B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.40.6739· OSTI ID:5419892

Felner, I; Yaron, U; Nowik, I; Bauminger, E R ^[1]; Wolfus, Y; Yacoby, E R ^[2]; Hilscher, G; Pillmayr, N ^[3]

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1. The Racah Institute of Physics, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel (IL)
2. Department of Physics, Bar-Ilan University, 52100 Ramat-Gan, Israel
3. Technical University of Vienna, A-1040 Vienna, Austria

The system Y{sub 1{minus}{ital x}}Pr{sub {ital x}}Ba{sub 2}Cu{sub 3{minus}{ital y}}Fe{sub {ital y}}O{sub {ital z}}, with {ital x}=0 to 1, {ital y}=0 and 0.3, and {ital z}=6 and 7, has been studied by ac and dc magnetometry to determine the superconducting phase transition temperature, {ital T}{sub {ital c}}, by {sup 57}Fe Moessbauer spectroscopy to determine the antiferromagnetic phase transition temperature of the Cu(2) site, {ital T}{sub {ital N}}, and by specific-heat measurements to determine {gamma} and the antiferromagnetic ordering temperature of the Pr site, {ital T}{sub {ital n}}. {ital T}{sub {ital c}} ({ital x},{ital z}=7), {ital T}{sub {ital N}} ({ital x},{ital z}=6,7), and {ital T}{sub {ital n}} ({ital x},{ital z}=7) were obtained for {ital x} values of 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0. For {ital z}=6, {ital T}{sub {ital N}} changes very little with {ital x} ({ital T}{sub {ital N}}(0,6)=415 K and {ital T}{sub {ital N}}(1,6)=350 K), but for {ital z}=7, {ital T}{sub {ital N}} changes sharply with {ital x} ({ital T}{sub {ital N}}(1,7)=325 K, {ital T}{sub {ital N}}(0.6,7)=230 K, and {ital T}{sub {ital N}}(0.4,7){le}35 K). There is no conclusive evidence for overlap of superconductivity and antiferromagnetism. {ital T}{sub {ital n}} also decreases strongly with decreasing {ital x}, {ital T}{sub {ital n}}(1,7)=17 K, while {ital T}{sub {ital n}}(0.4,7){le}2.5 K. The specific-heat measurements show large linear temperature terms. The slope {gamma} increases strongly with {ital x} and with the introduction of the Fe probe.

• OSTI ID: 5419892
• Journal Information: Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:10; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
INFORMATION
INTERMEDIATE MASS NUCLEI
IRON 57
IRON ADDITIONS
IRON ALLOYS
IRON ISOTOPES
ISOTOPES
MAGNETISM
MOESSBAUER EFFECT
NEEL TEMPERATURE
NUCLEI
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SPECIFIC HEAT
STABLE ISOTOPES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES