Hidden magnetic excitation in the pseudogap phase of a high-T-c superconductor

Simple item page
dc.contributor.authorLi, Yen_AU
dc.contributor.authorBaledent, Ven_AU
dc.contributor.authorYu, Gen_AU
dc.contributor.authorBarisic, Nen_AU
dc.contributor.authorHradil, Ken_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorSidis, Yen_AU
dc.contributor.authorSteffens, Pen_AU
dc.contributor.authorZhao, Xen_AU
dc.contributor.authorBourges, Pen_AU
dc.contributor.authorGreven, Men_AU
dc.date.accessioned2011-08-18T02:06:58Zen_AU
dc.date.available2011-08-18T02:06:58Zen_AU
dc.date.issued2010-11-11en_AU
dc.date.statistics2011-07-18en_AU
dc.description.abstractThe elucidation of the pseudogap phenomenon of the high-transition-temperature (high-T-c) copper oxides-a set of anomalous physical properties below the characteristic temperature T* and above T-c-has been a major challenge in condensed matter physics for the past two decades(1). Following initial indications of broken time-reversal symmetry in photoemission experiments(2), recent polarized neutron diffraction work demonstrated the universal existence of an unusual magnetic order below T* (refs 3, 4). These findings have the profound implication that the pseudogap regime constitutes a genuine new phase of matter rather than a mere crossover phenomenon. They are furthermore consistent with a particular type of order involving circulating orbital currents, and with the notion that the phase diagram is controlled by a quantum critical point(5). Here we report inelastic neutron scattering results for HgBa2CuO4+delta that reveal a fundamental collective magnetic mode associated with the unusual order, and which further support this picture. The mode's intensity rises below the same temperature T* and its dispersion is weak, as expected for an Ising-like order parameter(6). Its energy of 52-56 meV renders it a new candidate for the hitherto unexplained ubiquitous electron-boson coupling features observed in spectroscopic studies(7-10). © 2011, Nature Publishing Groupen_AU
dc.identifier.citationLi, Y., Baledent, V., Yu, G., Barisic, N., Hradil, K., Mole, R.A., Sidis, Y., Steffens, P., Zhao, X., Bourges, P., Greven, M. (2010). Hidden magnetic excitation in the pseudogap phase of a high-T-c superconductor. Nature, 468, 283-285. doi:10.1038/nature09477en_AU
dc.identifier.govdoc3452en_AU
dc.identifier.issn0028-0836en_AU
dc.identifier.journaltitleNatureen_AU
dc.identifier.pagination283-285en_AU
dc.identifier.urihttp://dx.doi.org/10.1038/nature09477en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3700en_AU
dc.identifier.volume468en_AU
dc.language.isoenen_AU
dc.publisherNatural Publishing Groupen_AU
dc.subjectCopper oxidesen_AU
dc.subjectSuperconductorsen_AU
dc.subjectPhotoemissionen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectTemperature range 0400-1000 Ken_AU
dc.subjectPhysical propertiesen_AU
dc.titleHidden magnetic excitation in the pseudogap phase of a high-T-c superconductoren_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles