Anomalies in the surface impedance penetration depth in ferromagnetic superconductors |
| |
| Authors: | G. Kozlowski H. Matsumoto H. Umezawa J.P. Whitehead F. Mancini C.Y. Huang C.E. Olsen M.B. Maple H.C. Hamaker M.S. Torikachvili F.E. Wang |
| |
| Affiliation: | Theoretical Physics Institute, Department of Physics The University of Alberta, Edmonton, Alberta T6G 2J1 Canada;Universita di Salerno, Instituto di Fisica, 84100 Salerno, Italy;Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA;Institute for Pure and Applied Physical Sciences University of California, San Diego, La Jolla, California 92093, USA;Innovative Technology International, Inc. 107 47-3 Tucker Street, Beltsville, Maryland 20705, USA |
| |
| Abstract: | We have investigated the surface impedance penetration depth, Λ, of ErRh4B4 and Er0.5Ho0.5Rh4B4 both experimentally and theoretically. For ErRh4B4, owing to the critical spin fluctuations just above Ts ( > Tc2), the critical temperature at which surface ferromagnetism appears, Λ?1 decreases smoothly as T decreases toward Ts. For Er0.5Ho0.5Rh4B4, the decrease in Λ?1 owing to spin fluctuations for T ? Tc2 is very small, and Λ?1 decreases abruptly at Tc2. Theoretical values of Λ?1 are in good agreement with the data. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
