Anisotropic Hall effect in single-crystal heavy-fermion YbAgGe Bud'ko, Sergey Morosan, Emilia Canfield, Paul Canfield, Paul
dc.contributor.department Ames Laboratory
dc.contributor.department Physics and Astronomy 2018-02-14T12:23:57.000 2020-06-29T23:25:40Z 2020-06-29T23:25:40Z Sat Jan 01 00:00:00 UTC 2005 2014-09-05 2005-02-15
dc.description.abstract <p>Temperature- and field-dependent Hall effect measurements are reported for YbAgGe, a heavy-fermion compound exhibiting a field-induced quantum phase transition, and for two other closely related members of the RAgGe series: a nonmagnetic analog, LuAgGe and a representative, “good local moment,” magnetic material, TmAgGe. Whereas the temperature-dependent Hall coefficient of YbAgGe shows behavior similar to what has been observed in a number of heavy-fermion compounds, the low temperature, field-dependent measurements reveal well-defined, sudden changes with applied field; in specific for H⊥c a clear local maximum that sharpens as temperature is reduced below 2 K and that approaches a value of 45 kOe—a value that has been proposed as the T=0 quantum critical point. Similar behavior was observed for H∥c where a clear minimum in the field-dependent Hall resistivity was observed at low temperatures. Although at our base temperatures it is difficult to distinguish between the field-dependent behavior predicted for (i) diffraction off a critical spin density wave or (ii) breakdown in the composite nature of the heavy electron, for both field directions there is a distinct temperature dependence of a feature that can clearly be associated with a field-induced quantum critical point at T=0 persisting up to at least 2 K.</p>
dc.description.comments <p>This article is from <em>Physical Review B</em> 71 (2005): 054408, doi:<a href="" target="_blank">10.1103/PhysRevB.71.054408</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1184
dc.identifier.contextkey 6083478
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/180
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 21:35:12 UTC 2022
dc.source.uri 10.1103/PhysRevB.71.054408
dc.subject.disciplines Condensed Matter Physics
dc.subject.keywords Physics and Astronomy
dc.title Anisotropic Hall effect in single-crystal heavy-fermion YbAgGe
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication c5a8128b-7d98-4b8f-92d7-b1385e345713
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
198.77 KB
Adobe Portable Document Format