Rotational response of superconductors: Magnetorotational isomorphism and rotation-induced vortex lattice
2014 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 89, no 10, 104501- p.Article in journal (Refereed) Published
The analysis of nonclassical rotational response of superfluids and superconductors was performed by Onsager [Onsager, Nuovo Cimento, Suppl. 6, 279 (1949)] and London [Superfluids (Wiley, NewYork, 1950)] and crucially advanced by Feynman [Prog. Low Temp. Phys. 1, 17 (1955)]. It was established that, in the thermodynamic limit, neutral superfluids rotate by forming-without any threshold-a vortex lattice. In contrast, the rotation of superconductors at angular frequency Omega-supported by uniform magnetic field B-L proportional to Omega due to surface currents-is of the rigid-body type (London law). Here we show that, neglecting the centrifugal effects, the behavior of a rotating superconductor is identical to that of a superconductor placed in a uniform fictitious external magnetic field (H) over tilde = -B-L. In particular, the isomorphism immediately implies the existence of two critical rotational frequencies in type-2 superconductors.
Place, publisher, year, edition, pages
2014. Vol. 89, no 10, 104501- p.
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-143685DOI: 10.1103/PhysRevB.89.104501ISI: 000332449000004ScopusID: 2-s2.0-84897894456OAI: oai:DiVA.org:kth-143685DiVA: diva2:708890
FunderKnut and Alice Wallenberg FoundationSwedish Research Council
QC 201403312014-03-312014-03-272014-03-31Bibliographically approved