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http://hdl.handle.net/2445/135979
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DC Field | Value | Language |
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dc.contributor.author | Opeil, C. P. | - |
dc.contributor.author | Mihaila, B. | - |
dc.contributor.author | Schulze, R. K. | - |
dc.contributor.author | Mañosa, Lluís | - |
dc.contributor.author | Planes Vila, Antoni | - |
dc.contributor.author | Hults, W. L. | - |
dc.contributor.author | Fisher, R. A. | - |
dc.contributor.author | Riseborough, P. S. | - |
dc.contributor.author | Littlewood, P. B. | - |
dc.contributor.author | Smith, J. L. | - |
dc.contributor.author | Lashley, J. C. | - |
dc.date.accessioned | 2019-06-27T13:07:20Z | - |
dc.date.available | 2019-06-27T13:07:20Z | - |
dc.date.issued | 2008-04-23 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/135979 | - |
dc.description.abstract | Ultraviolet-photoemission (UPS) measurements and supporting specific-heat, thermal-expansion, resistivity, and magnetic-moment measurements are reported for the magnetic shape-memory alloy Ni 2 MnGa over the temperature range 100 < T < 250 K . All measurements detect clear signatures of the premartensitic transition ( T PM ∼ 247 K ) and the martensitic transition ( T M ∼ 196 K ). Temperature-dependent UPS shows a dramatic depletion of states (pseudogap) at T PM located 0.3 eV below the Fermi energy. First-principles electronic structure calculations show that the peak observed at 0.3 eV in the UPS spectra for T > T PM is due to the Ni d minority-spin electrons. Below T M this peak disappears, resulting in an enhanced density of states at energies around 0.8 eV. This enhancement reflects Ni d and Mn d electronic contributions to the majority-spin density of states. | - |
dc.format.extent | 4 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.100.165703 | - |
dc.relation.ispartof | Physical Review Letters, 2008, vol. 100, num. 16, p. 165703 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.100.165703 | - |
dc.rights | (c) American Physical Society, 2008 | - |
dc.source | Articles publicats en revistes (Física de la Matèria Condensada) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Combined Experimental and Theoretical Investigation of the Premartensitic Transition in Ni2 MnGa | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 600359 | - |
dc.date.updated | 2019-06-27T13:07:20Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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600359.pdf | 492.94 kB | Adobe PDF | View/Open |
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