Hyperfine interaction of Eu in Eu2TiO4 |
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| Authors: | Chia-Ling Chen F. de S. Barros |
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| Affiliation: | Department of Physics, Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213, USA |
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| Abstract: | The hyperfine interaction of 151Eu in Eu2TiO4 has been measured using the Mössbauer Effect. Using the four-fold symmetry of the Eu2+ site, it has been found that the nuclear quadrupole moment ratio of the first-excited to the ground states of 151Eu is R = 1.34 ±0.03, and the quadrupole interaction energy is ρ2qQo = -(190 ± 7) MHZ. Below Tc = 7.8K, the magnetic hyperfine field Hhf points close to the direction of the four-fold axis. The zero-degree value of Hhf is estimated to be (305 ± 3) kOe. |
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