Temperature dependence of the electric field gradient generated by nearest-neighbor impurity atoms in cubic Ag metal
dc.contributor.author | Baumvol, Israel Jacob Rabin | pt_BR |
dc.contributor.author | Behar, Moni | pt_BR |
dc.contributor.author | Iglesias, Jose Roberto | pt_BR |
dc.contributor.author | Livi, Rogerio Pohlmann | pt_BR |
dc.contributor.author | Zawislak, Fernando Claudio | pt_BR |
dc.date.accessioned | 2014-10-04T02:13:20Z | pt_BR |
dc.date.issued | 1978 | pt_BR |
dc.identifier.issn | 0163-1829 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/104160 | pt_BR |
dc.description.abstract | The electric quadrupole interactions produced by near-neighbor (nn) and distant-neighbor impurity atoms of Cu, Au, Zn, In, Ga, Al, Sn, and Sb in a cubic Ag lattice are measured as a function of the temperature by the time differential perturbed angular correlation method. The results show that both the high-frequency interaction vhQ-generated by nn impurities-and the low-frequency interaction v1Q- generated by distant impurities-follow the relation vQ(T) = vQ(O) (I -a T 312). From the present measurements it can be concluded that both coefficients, ∝h and ∝1 are strongly dependent on the mass M of the impurity. For the case of Al, Ga, and In impurities with the same charge difference ∆Z = 2 between host and impurity, both ∝h and ∝1 scale as M-n with n = 0.37 ±0.04 and n = 0.9 ±0.4, respectively. lt is shown that for a Sn impurity the unnormalized slope ∝h ·vhQ(O) is independent of the concentration in the range 1.5-3 at. %. A strong dependence of ∝h and ∝1 on ∆Z, the charge difference between host and impurity, is also observed; however, the results do not follow a simple relation. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. B, Condensed matter. New York. Vol. 18, n. 12 (Dec. 1978), p. 6713-6718 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Física da matéria condensada | pt_BR |
dc.subject | Espectros raios gama | pt_BR |
dc.subject | Impurezas | pt_BR |
dc.title | Temperature dependence of the electric field gradient generated by nearest-neighbor impurity atoms in cubic Ag metal | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000145363 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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