ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The combined hyperfine interaction of mercury in a hexagonal close-packed cobalt single crystal was measured using the e−−γ perturbed angular correlation technique with the 197Hg and 199Hg probes, without applied magnetic field. The magnetic and quadrupole coupling constants of the 5/2− levels in both 197Hg and 199Hg were measured with extremely high precision, ωL( 197Hg)=951(9) Mrad/s, ωL (199Hg)=1039(10) Mrad/s, vQ (197Hg)=3.7(5) MHz and vQ (199Hg)=32(2) MHz. Using the well-known g factors and quadrupole moments of the respective levels, the magnetic hyperfine field, ||Hhf(HgCo)||=581(12) kG, and the electric field gradient, ||Vzz(HgCo)|| =2.0(3)×1017 V/cm2, were derived. The importance of using these hyperfine probes for studying the microscopic structure of cobalt-based multilayers is introduced and discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.358111
Permalink