Stability and local electronic properties of Al3 M (M=Zr, Hf): An NMR study

C. S. Lue; B. X. Xie; S. N. Horng; J. H. Su; J. Y. Lin

doi:10.1103/PhysRevB.71.195104

Stability and local electronic properties of Al3 M (M=Zr, Hf): An NMR study

C. S. Lue, B. X. Xie, S. N. Horng, J. H. Su, J. Y. Lin

Department of Physics

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23 Citations (Scopus)

Abstract

Al27 NMR measurements were performed on the D 023 -structure trialuminides Al3 Zr and Al3 Hf. The Knight shifts, quadrupole splittings, and spin-lattice relaxation times for each of the three crystallographic sites have been resolved. Universally small Fermi-contact Knight shifts and long relaxation times are found for both alloys. Results provide a measure of s -character Fermi-level density of states Ns (EF) and an indication of orbital weights. In addition, there is evidence that Ns (EF) correlates with the structural stability of the studied materials. Our NMR measurements confirm that Al3 Zr is more stable than Al3 Hf with respect to the D 023 structure.

Original language	English
Article number	195104
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.71.195104
Publication status	Published - 2005

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.71.195104

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title = "Stability and local electronic properties of Al3 M (M=Zr, Hf): An NMR study",

abstract = "Al27 NMR measurements were performed on the D 023 -structure trialuminides Al3 Zr and Al3 Hf. The Knight shifts, quadrupole splittings, and spin-lattice relaxation times for each of the three crystallographic sites have been resolved. Universally small Fermi-contact Knight shifts and long relaxation times are found for both alloys. Results provide a measure of s -character Fermi-level density of states Ns (EF) and an indication of orbital weights. In addition, there is evidence that Ns (EF) correlates with the structural stability of the studied materials. Our NMR measurements confirm that Al3 Zr is more stable than Al3 Hf with respect to the D 023 structure.",

author = "Lue, {C. S.} and Xie, {B. X.} and Horng, {S. N.} and Su, {J. H.} and Lin, {J. Y.}",

year = "2005",

doi = "10.1103/PhysRevB.71.195104",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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T1 - Stability and local electronic properties of Al3 M (M=Zr, Hf)

T2 - An NMR study

AU - Lue, C. S.

AU - Xie, B. X.

AU - Horng, S. N.

AU - Su, J. H.

AU - Lin, J. Y.

PY - 2005

Y1 - 2005

N2 - Al27 NMR measurements were performed on the D 023 -structure trialuminides Al3 Zr and Al3 Hf. The Knight shifts, quadrupole splittings, and spin-lattice relaxation times for each of the three crystallographic sites have been resolved. Universally small Fermi-contact Knight shifts and long relaxation times are found for both alloys. Results provide a measure of s -character Fermi-level density of states Ns (EF) and an indication of orbital weights. In addition, there is evidence that Ns (EF) correlates with the structural stability of the studied materials. Our NMR measurements confirm that Al3 Zr is more stable than Al3 Hf with respect to the D 023 structure.

AB - Al27 NMR measurements were performed on the D 023 -structure trialuminides Al3 Zr and Al3 Hf. The Knight shifts, quadrupole splittings, and spin-lattice relaxation times for each of the three crystallographic sites have been resolved. Universally small Fermi-contact Knight shifts and long relaxation times are found for both alloys. Results provide a measure of s -character Fermi-level density of states Ns (EF) and an indication of orbital weights. In addition, there is evidence that Ns (EF) correlates with the structural stability of the studied materials. Our NMR measurements confirm that Al3 Zr is more stable than Al3 Hf with respect to the D 023 structure.

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DO - 10.1103/PhysRevB.71.195104

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JF - Physical Review B - Condensed Matter and Materials Physics

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Stability and local electronic properties of Al3 M (M=Zr, Hf): An NMR study

Abstract

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