| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-2189 - C8-2190 | |
| DOI | https://doi.org/10.1051/jphyscol:19888982 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-2189-C8-2190
DOI: 10.1051/jphyscol:19888982
1 University of Illinois, Chicago, IL 60680, U.S.A.
2 Argonne National Laboratory, Argonne, IL 60439, U.S.A.
J. Phys. Colloques 49 (1988) C8-2189-C8-2190
DOI: 10.1051/jphyscol:19888982
ROTATIONAL MAGNETIC PROCESSES IN A TYPE-II SUPERCONDUCTOR
Liwen Liu1, J. S. Kouvel1 et T. O. Brun21 University of Illinois, Chicago, IL 60680, U.S.A.
2 Argonne National Laboratory, Argonne, IL 60439, U.S.A.
Abstract
Magnetisation-vector (M) measurements were made on a disk of compacted Nb powder in a fixed field H at 4.2 K. M is separable into a non-rotating diamagnetic component (≈ -H/4π) plus a penetrating-flux component which (for H > Hc1) rotates with the sample but only up to some critical angle, indicating a frictional torque due to flux pinning.