Specific heat jump of superconducting La/sub 1-x/Tb/sub x/Al$sub 2$ related to crystal electric field splitting of the Tb$sup 3+$ levels

Journal Article · Thu Nov 15 04:00:00 EST 1973 · Solid State Commun., v. 13, no. 10, pp. 1641-1643

DOI:https://doi.org/10.1016/0038-1098(73)90256-1· OSTI ID:4356439

Happel, H; Hoenig, H E

Measurements of the specific heat jump DELTA c(T/sub c/) were performed on superconducting La/sub 1-x/Tb/sub x/Al/sub 2/ compounds in order to investiga te the pairbreaking effect of Tb/sup 3+/ ions in the LaAl/sub 2/ host. The results deviate from the Abrikosov-Gorkov theory for superconductors with magnetic impurities. Taking into account the crystal field level structure of Tb/ sup 3+/ in LaAl/sub 2/ the results can be qualitatively understood within the model of Fulde, Keller and Peschel. According to calculations published by Mueller--Hartmann and Zittantz an influence of the Kondo effect can be ruled out. (auth)

• Research Organization: Univ., Frankfurt am Main
• NSA Number: NSA-29-014053
• OSTI ID: 4356439
• Journal Information: Solid State Commun., v. 13, no. 10, pp. 1641-1643, Journal Name: Solid State Commun., v. 13, no. 10, pp. 1641-1643; ISSN SSCOA
• Country of Publication: United Kingdom
• Language: English

Related Subjects

*ALUMINIUM ALLOYS-- SUPERCONDUCTIVITY
*LANTHANUM ALLOYS-- SUPERCONDUCTIVITY
*TERBIUM ALLOYS-- SUPERCONDUCTIVITY
CATIONS
CRYSTAL FIELD
IMPURITIES
INTERMETALLIC COMPOUNDS
MAGNETIC MATERIALS
N66200* --Physics (Low Temperature)--Superconductivity
SPECIFIC HEAT
SUPERCONDUCTORS
TERBIUM COMPOUNDS
TRANSITION TEMPERATURE