4 papers
On the Origin of the Double Superconducting Transition in Overdoped YBa2Cu3Ox
R. Lortz, T. Tomita, Y. Wang +4
The superconducting transition in a single overdoped, detwinned YBa2Cu3Ox (YBCO) crystal is studied using four different probes. Whereas the AC and DC magnetic susceptibilities fin…
Specific heat, magnetic susceptibility, resistivity and thermal expansion of the superconductor ZrB12
R. Lortz, Y. Wang, S. Abe +4
In an attempt to clarify conflicting published data, we report new measurements of specific heat, resistivity, magnetic susceptibility, and thermal expansivity up to room temperatu…
Reversible and irreversible magnetocaloric effect in the NdBa_2Cu_3O_7 superconductor in relation with specific heat and magnetization
T. Plackowski, Y. Wang, R. Lortz +2
A recently developed technique for measuring the isothermal magnetocaloric coefficient () is applied to the study of a superconducting NdBaCuO single crystal. Resu…
Specific heat of Nb_3Sn: The case for a second energy gap
V. Guritanu, W. Goldacker, F. Bouquet +4
We present new specific heat data for Nb3Sn, a well-known technically applied superconductor with a critical temperature T_c ~ 18 K, in the temperature range from 1.2 to 200 K in z…