Observation of half-height magnetization steps in Sr{sub 2}RuO{sub 4 }.
- Materials Science Division
Spin-triplet superfluids can support exotic objects, such as half-quantum vortices characterized by the nontrivial winding of the spin structure. We present cantilever magnetometry measurements performed on mesoscopic samples of Sr{sub 2}RuO{sub 4}, a spin-triplet superconductor. With micrometer-sized annular-shaped samples, we observed transitions between integer fluxoid states as well as a regime characterized by 'half-integer transitions' - steps in the magnetization with half the height of the ones we observed between integer fluxoid states. These half-height steps are consistent with the existence of half-quantum vortices in superconducting Sr{sub 2}RuO{sub 4}.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 1010910
- Report Number(s):
- ANL/MSD/JA-69651; SCIEAS; TRN: US201109%%138
- Journal Information:
- Science, Vol. 331, Issue Jan. 14, 2011; ISSN 0036-8075
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Engineering of mixed pairing and non-Abelian Majorana states in chiral p-wave superconductor Sr2RuO4 and other materials
Observation of half-quantum flux in the unconventional superconductor β-Bi 2 Pd
Effect of half-quantum vortices on magnetoresistance of perforated superconducting films.
Technical Report
·
Mon Nov 30 00:00:00 EST 2015
·
OSTI ID:1010910
Observation of half-quantum flux in the unconventional superconductor β-Bi 2 Pd
Journal Article
·
Thu Oct 10 00:00:00 EDT 2019
· Science
·
OSTI ID:1010910
+2 more
Effect of half-quantum vortices on magnetoresistance of perforated superconducting films.
Journal Article
·
Thu Jul 14 00:00:00 EDT 2011
· Phys. Rev. Lett.
·
OSTI ID:1010910