Observation of half-height magnetization steps in Sr2RuO 4

J. Jang, D. G. Ferguson, V. Vakaryuk, R. Budakian, S. B. Chung, P. M. Goldbart, Y. Maeno

Research output: Contribution to journalArticlepeer-review


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 Sr2RuO4, a spin-triplet superconductor. With micrometersized 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 2RuO4.

Original languageEnglish (US)
Pages (from-to)186-188
Number of pages3
Issue number6014
StatePublished - Jan 14 2011

ASJC Scopus subject areas

  • General


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