124 citations · 440 across the 7 of their papers we have counts for
7 papers
Measuring chemical evolution and gravitational dependence of αusing ultraviolet Fe V and Ni V transitions in white-dwarf spectra
A. Ong, J. C. Berengut, V. V. Flambaum
In this paper, we present the details of the ab initio high-precision configuration interaction and many-body perturbation theory calculations that were used in a previous work to…
Limits on the dependence of the fine-structure constant on gravitational potential from white-dwarf spectra
J. C. Berengut, V. V. Flambaum, A. Ong +5
We propose a new probe of the dependence of the fine structure constant, alpha, on a strong gravitational field using metal lines in the spectra of white dwarf stars. Comparison of…
Highly charged ions with E1, M1, and E2 transitions within laser range
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
Level crossings in the ground state of ions occur when the nuclear charge Z and ion charge Z_ion are varied along an isoelectronic sequence until the two outermost shells are nearl…
Optical transitions in highly-charged californium ions with high sensitivity to variation of the fine-structure constant
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
We study electronic transitions in highly-charged Cf ions that are within the frequency range of optical lasers and have very high sensitivity to potential variations in the fine-s…
Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
We consider transitions of electron holes (vacancies in otherwise filled shells of atomic systems) in multiply-charged ions that, due to level-crossing of the holes, have frequenci…
The effect of spin-orbit nuclear charge density corrections due to the anomalous magnetic moment on halonuclei
A. Ong, J. C. Berengut, V. V. Flambaum
In this paper we consider the contribution of the anomalous magnetic moments of protons and neutrons to the nuclear charge density. We show that the spin-orbit contribution to the…
Spin-wave velocities, density of magnetic excitations, and NMR relaxation in ferro-pnictides
Andrew Ong, Goetz S. Uhrig, Oleg P. Sushkov
We perform an analysis of the experimentally known temperature dependence of the staggered magnetization in the antiferromagnetic phase. This analysis allows us to put an upper lim…