Muons are particles with a spin of ½ that can be implanted into a wide range of condensed
matter materials to act as a local probe of the surrounding atomic environment …

We confirm the recent prediction that interstitial protium may act as a shallow donor in zinc
oxide, by direct spectroscopic observation of its muonium counterpart. On implantation into …

The structure and electrical activity of monatomic hydrogen defect centres are inferred from
the spectroscopy and charge-state transitions of muonium, the light pseudo-isotope of …

The muon is an elementary particle and, as such, forms a fundamental building block of the
Standard Model of elementary particles. At the same time, the muon, especially the …

The electronic structure and the location of muonium centers (Mu) in single-crystalline ZnO
were determined for the first time. Two species of Mu centers with extremely small hyperfine …

The nature of the electron states associated with hydrogen in InN has been inferred by
studying the behavior of positive muons, which mimic protons when implanted into …

Experimental data on shallow donor muonium states in the II− VI semiconductor compounds
CdS, CdSe, CdTe, and ZnO are presented. These are characterized by very weak hyperfine …

We present a systematic study of isolated hydrogen in diverse forms of ZrO 2 (zirconia), both
undoped and stabilized in the cubic phase by additions of transition-metal oxides (Y 2 O 3 …

The hyperfine structure of the interstitial muonium (Mu) in rutile (TiO 2, weakly n-type) has
been identified by means of a muon-spin-rotation technique. The angle-resolved hyperfine …

The high magnetic field (HiFi) muon instrument at the ISIS pulsed neutron and muon source
is a state-of-the-art spectrometer designed to provide applied magnetic fields up to 5 T for …