ISSN:
1572-9540
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract The relaxation of theμ +SR signal has been investigated for the three compounds YRh4B4, ErRh4B4 and SmRh4B4. In the non-magnetic superconducting (T c ≈ 11 K) YRh4B4, the data display a Kubo-Toyabe (gaussian) shape for zero (transverse) magnetic fields. ErRh4B4 (superconducting below 8.7 K and ferromagnetic below 1 K) shows a dominant signal with very slow relaxation. In contrast SmRh4B4 (superconducting below 2.7 K and antiferromagnetic-superconducting below 0.87 K) shows a change in relaxation from gaussian above ≈ 60 K to exponential between 1 K and 4 K to two exponential signals (fast and slow) belowT N=0.9 K. In the region 0.9 K 〈T 〈 4.5 K, the relaxation time and the asymmetry both increase withT.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02064862