Time-odd mean fields in the rotating frame: microscopic nature of nuclear magnetism. Abstract The microscopic role of nuclear magnetism in rotating frame is investigated for the first time in the framework of the cranked relativistic mean field theory. It is shown that nuclear magnetism modifies the expectation values of single-particle spin, orbital and total angular momenta along the rotation...

For more than 30 years, the observation of nuclear magnetic interactions in solid methane has given valuable information on the reorientational dynamics of its molecules. Recently, measurements of some basic properties of nuclear absorption lineshapes, such as the. integrated intensity and the second moment, have revealed the rates at which the populations of various molecular orientational sta...

The distributions of electric charge and magnetism in an atomic nucleus are usually described in terms of multipole moments limited in number by the magnitude of the nuclear angular momentum. In this laboratory, atomic-beam techniques are used to determine such electric and magnetic moments. In addition, information about the radial distribution of nuclear magnetism can be obtained in cases in ...

The hyperfine interaction between the electron spin and the nuclear spins is one of the main sources of decoherence for spin qubits when the nuclear spins are disordered. An ordering of the latter largely suppresses this source of decoherence. Here we show that such an ordering can occur through a thermodynamic phase transition in two-dimensional (2D) Kondolattice type systems. We specifically ...

We have extended the formalism for the two-neutrino double beta decay by including the weak-magnetism term, as well as other second-forbidden corrections. The weak magnetism diminishes the calculated half-lives in ∼ 10%, independently of the nuclear structure. Numerical computations were performed within the pn-QRPA, for 76 Ge, 128 T e and 130 T e nuclei. No one of the second-forbidden correcti...

We report the results of a nuclear magnetic resonance ~NMR! study of Al3V at temperatures between 4 and 300 K. V and Al Knight shifts exhibit a Curie-Weiss behavior corresponding to an effective moment Pe f f.0.32mB per V, indicating intrinsic weak magnetism localized in vanadium orbitals. The T1 exhibits a AT dependence at higher temperatures, indicative of nearly antiferromagnetic behavior of...

Muon spin relaxation experiments have been performed in the pyrochlore iridate Pr2Ir2O7 for temperatures in the range 0.025– 250 K. Kubo-Toyabe relaxation functions are observed up to & 200 K, indicating static magnetism over this temperature range. The T → 0 static muon spin relaxation rate ∆(0) ≈ 8 μs implies a weak quasistatic moment (∼0.1μB). The temperature dependence of ∆ is highly non-me...