Hydrostatic pressure effects on the superconductivity of La/sub 1. 2-x/Eu/sub x/MO/sub 6/S/sub 8/ pseudoternary compounds

Journal Article · Wed Dec 01 04:00:00 EST 1982 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00681902· OSTI ID:6337586

Torikachvili, M S; Maple, M B; Guertin, R P; Foner, S

The effect of hydrostatic pressure on the superconductivity of La/sub 1.2-x/Eu/sub x/Mo/sub 6/W/sub 8/ pseudoternary compounds was studied by means of low-frequency ac and dc magnetic susceptibility measurements up to 20 kbar. The superconducting transition temperature T/sub c/ at ambient pressure is a weakfunction of Eu concentration x for 0< or approx. =x< or approx. =0.2, and then decreases smoothly with x for x>0.2 until superconductivity is completely suppressed for x> or =0.95. Pressure was found to decrease T/sub c/ in the La-rich compounds and to increase T/sub c/ in the Eu-rich compounds. Pressure also induces superconductivity in compounds with x>0.95 that are not superconducting at ambient pressure. A La/sub 0.2/Eu/sub 1.0/Mo/sub 6/S/sub 8/ compound revealed a sizeable Meissner effect for pressure larger than 7 kbar.

• Research Organization: Institute of Applied Physical Sciences, University of California-San Diego, La Jolla, California
• DOE Contract Number: AT03-76ER70227
• OSTI ID: 6337586
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 49:5; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
&amp; Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
DATA
DIAMAGNETISM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EUROPIUM COMPOUNDS
EUROPIUM SULFIDES
EXPERIMENTAL DATA
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM SULFIDES
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MEISSNER-OCHSENFELD EFFECT
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NUMERICAL DATA
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
QUANTITY RATIO
RARE EARTH COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH PRESSURE