The anomalous thermal conductivity of La2-xSrxCuO4-y at very low temperatures
dc.contributor.author | Uher, Ctirad | en_US |
dc.contributor.author | Cohn, J. L. | en_US |
dc.date.accessioned | 2006-12-19T19:06:06Z | |
dc.date.available | 2006-12-19T19:06:06Z | |
dc.date.issued | 1988-09-20 | en_US |
dc.identifier.citation | Uher, C; Cohn, J L (1988). "The anomalous thermal conductivity of La2-xSrxCuO4-y at very low temperatures." Journal of Physics C: Solid State Physics. 21(26): L957-L963. <http://hdl.handle.net/2027.42/49000> | en_US |
dc.identifier.issn | 0022-3719 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/49000 | |
dc.description.abstract | The authors report measurements of thermal conductivity ( kappa ) extending to 100 mK on a series of La2-xSrxCuO4-y specimens with 0.10<or=x<or=0.25. For two superconducting samples (x=0.20, x=0.25) the temperature dependence of kappa weakens below about 0.5 K, approaching a variation linear in T near 0.1 K. A non-superconducting sample (x=0.10) exhibits a kappa varies as T3 dependence below 1 K, characteristic of phonon boundary scattering. After annealing in a vacuum, the x=0.20 specimen became insulating and had a thermal conductivity similar in magnitude and temperature dependence to that of the x=0.10 sample. Thus superconducting and non-superconducting samples are clearly distinguished by the behaviour of their thermal conductivities at sub-kelvin temperatures. These results are shown to be consistent with the presence of a small number of free carriers well below Tc in the superconductors. They suggest that a non-superconducting band of electrons is present in the highly doped materials. | en_US |
dc.format.extent | 3118 bytes | |
dc.format.extent | 440647 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.publisher | IOP Publishing Ltd | en_US |
dc.title | The anomalous thermal conductivity of La2-xSrxCuO4-y at very low temperatures | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationother | Dept. of Phys., Michigan Univ., Ann Arbor, MI, USA | en_US |
dc.contributor.affiliationother | Dept. of Phys., Michigan Univ., Ann Arbor, MI, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/49000/2/jcv21i26pL957.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1088/0022-3719/21/26/006 | en_US |
dc.identifier.source | Journal of Physics C: Solid State Physics. | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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