Journal
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Volume 22, Issue 4, Pages 325-329Publisher
SPRINGER
DOI: 10.1007/s10948-008-0413-1
Keywords
Oxypnictides; Anisotropy; Multi-band superconductivity; Single crystal; Torque magnetometry
Categories
Funding
- Swiss National Science Foundation
- NCCR program MaNEP
- EU Project CoMePhS
Ask authors/readers for more resources
Single crystals of the oxypnictide superconductor SmFeAsO0.8F0.2 with T (c)a parts per thousand integral 45(1) K were investigated by torque magnetometry. The crystals of mass a parts per thousand currency sign0.1 mu g were grown by a high-pressure cubic anvil technique. The use of a high-sensitive piezoresistive torque sensor made it possible to study the anisotropic magnetic properties of these tiny crystals. The anisotropy parameter gamma was found to be field independent, but varies strongly with temperature ranging from gamma a parts per thousand integral 8 at Ta parts per thousand T-2 (c) to gamma a parts per thousand integral 23 at Ta parts per thousand integral 0.4T (c). This unusual behavior of gamma signals unconventional superconductivity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available