English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Specific heat of a Kondo superconductor: (La, Ce) Al2

MPS-Authors
There are no MPG-Authors available
External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Armbrüster, H., Löhneysen, H. v., Riblet, G., & Steglich, F. (1974). Specific heat of a Kondo superconductor: (La, Ce) Al2. Solid State Communications, 14(1), 55-60. doi:10.1016/0038-1098(74)90231-2.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-BF4F-C
Abstract
The specific heat of LaAl2 and (La1-xCex)Al2 (x ⩽ 0.0064) has been measured between 0.3 and 5 K, both in the superconducting and in the normal state. For all samples the same values for the Debye temperature as well as for the electronic specific heat coefficient have been determined. LaAl2 shows an excellent BCS behavior. A remarkable excess specific heat at low temperatures due to the Kondo effect has been observed for all superconducting as well as for the normal conducting (La1-xCex) Al2 alloys. The specific heat jump ΔC at Tc depressed rapidly with increasing Ce concentration, allows the Kondo temperature TK ≅ 1 K to be determined. ΔC vanishes at finite temperatures.