dc.contributor.author | COEY, JOHN MICHAEL DAVID | |
dc.date.accessioned | 2009-08-14T09:15:54Z | |
dc.date.available | 2009-08-14T09:15:54Z | |
dc.date.issued | 1999 | |
dc.date.submitted | 1999 | en |
dc.identifier.citation | E.J. Singley, C.P. Weber, D.N. Basov, A. Barry and J.M.D. Coey 'Charge dynamics in the half-metallic ferromagnet CrO2' in Physical Review B, 60, (6), 1999, pp 4126 - 4130 | en |
dc.identifier.other | Y | en |
dc.identifier.other | Y | |
dc.identifier.uri | http://hdl.handle.net/2262/31767 | |
dc.description | PUBLISHED | en |
dc.description.abstract | Infrared spectroscopy is used to investigate the electronic structure and charge carrier relaxation in crystalline films of CrO2 which is the simplest of all half-metallic ferromagnets. Chromium dioxide is a bad metal at room temperature but it has a remarkably low residual resistivity (<5???cm) despite the small spectral weight associated with free carrier absorption. The infrared measurements show that low residual resistivity is due to the collapse of the scattering rate at ?<2000?cm-1. The blocking of the relaxation channels at low ? and T can be attributed to the unique electronic structure of a half-metallic ferromagnet. In contrast to other ferromagnetic oxides, the intraband spectral weight is constant below the Curie temperature. | en |
dc.description.sponsorship | The authors would like to thank P. B. Allen, A. Bratkowski,
J. E. Hirsch, and I. I. Mazin for many useful comments.
This work was supported by the NSF Grant No.
DMR-9875980, the Alfred P. Sloan Foundation, a subcontract
from Brookhaven National Laboratory, and a grant
from Research Corporation. D.N.B. received funding from
the Research Corporation. | en |
dc.format.extent | 4126 | en |
dc.format.extent | 4130 | en |
dc.format.extent | 79224 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | en |
dc.publisher | American Physical Society | en |
dc.relation.ispartofseries | Physical Review B | en |
dc.relation.ispartofseries | 60 | en |
dc.relation.ispartofseries | 6 | en |
dc.rights | Y | en |
dc.subject | Physics | en |
dc.title | Charge dynamics in the half-metallic ferromagnet CrO2 | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/jcoey | |
dc.identifier.rssinternalid | 3840 | |