Coexistent superconductivity and magnetism in Th-doped CeCu sub 2 Si sub 2

Journal Article · Thu Nov 01 04:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.8630· OSTI ID:6224502

Jee, C S; Andraka, B; Kim, J S; Li, H; Meisel, M W; Stewart, G R ^[1]

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1. Department of Physics, University of Florida, Gainesville, FL (USA)

Antiferromagnetic order is found in Ce{sub 1{minus}{ital x}}Th{sub {ital x}}Cu{sub 2}Si{sub 2} for 0.1{le}{ital x}{le}0.5, which becomes ferromagnetic in nature for {ital x}=0.9. Previous work, which found that superconductivity remains present in Th-doped CeCu{sub 2}Si{sub 2} up to at least {ital x}=0.12, and perhaps as far as {ital x}=0.2, is expanded upon to find that superconductivity remains up to at least {ital x}=0.25, with {Tc}{sup onset}=0.25 K. We report the coexistence of a significant bulk ordered moment ({approximately}1/4 of that of a fully ordered spin-1/2 system) coexisting with superconductivity in a heavy-fermion system.

• DOE Contract Number: FG05-86ER45268
• OSTI ID: 6224502
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:13; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ACTINIDE ALLOYS
ALLOYS
ANTIFERROMAGNETISM
CERIUM COMPOUNDS
CERIUM SILICIDES
COPPER COMPOUNDS
COPPER SILICIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
MAGNETISM
PHYSICAL PROPERTIES
QUANTITY RATIO
RARE EARTH COMPOUNDS
SILICIDES
SILICON COMPOUNDS
STOICHIOMETRY
SUPERCONDUCTIVITY
THORIUM ADDITIONS
THORIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS