Counting the microwave photons emitted by an ensemble of electron spins when they relax
radiatively has recently been proposed as a sensitive method for electron paramagnetic …

We present general guidelines for finding solid-state systems that could serve as coherent
electron-spin–photon interfaces even at relatively high temperatures, where phonons are …

We report on infrared to visible Zeeman absorption spectroscopy and parameterised crystal-
field modelling of Nd 3+ centres in Y 2 SiO 5 through the use of experimentally inferred …

It was recently shown that the optical excitation of rare-earth ions produces a local change of
the host matrix shape, attributed to a change of the rare-earth ion's electronic orbital …

Self-stimulated echoes have recently been reported in the high cooperativity and
inhomogeneous coupling regime of spin ensembles with superconducting resonators. In this …

The coherent interaction of solid-state spins with both optical and microwave fields provides
a platform for a range of quantum technologies, such as quantum sensing, microwave-to …

The anisotropic Zeeman interaction of an ion, and the strong hyperfine interaction with its
own nucleus, can significantly influence its interactions with the local environment. These …

Rare-earth-ion (REI) ensembles in crystals have remarkable optical and spin properties
characterized by narrow homogeneous linewidths relative to the inhomogeneous ensemble …

In the vicinity of spin level anti-crossings, electron-nuclear spin systems reveal characteristic
features that have been investigated by electron paramagnetic resonance (EPR) methods …

In the vicinity of the anticrossing region of the spin sublevels, the effective magnetic moment
of the electron spin is reduced, resulting in an increase in the lifetime of the spin coherence …