-
Article
Temperature-dependent time relaxation of ON and OFF states in NiO \(_{x}\) -based crossbar memory arrays
The time-dependence of ON and OFF switching states in Pt/NiO \(_{x}\) ...
-
Article
Quenched Disorder–Controlled Resistive Relaxation in Near-Half-Doped Manganite Systems
We have investigated the influence of the disorder on the resistive relaxation effects in the Sm1-aSraMnO3 system where a is the fraction of the alkaline element. The disorder was introduced through chemical subs...
-
Article
Switching characteristics of NiOx crossbar arrays driven by low-temperature electroforming
In this work, we systematically studied the temperature dependence of the current–voltage characteristics of Pt/ \(\hbox {NiO}_{{x}}\) ...
-
Article
Characterization of carbapenem-resistant Escherichia coli and Klebsiella pneumoniae from a healthcare region in Hong Kong
Carbapenem-resistant Enterobacteriaceae represents a major public health issue. This study investigated the clonality and resistance mechanisms of 92 carbapenem-resistant E. coli (n = 21) and K. pneumoniae (n = 7...
-
Article
Magnetic Characterization of Tm12Co5Bi Using μSR
The local magnetic properties of Tm12Co 5Bi were investigated using muon spin relaxation (μSR), showing unusual magnetic features. Below 0.27 T, any magnetic transition in the sample occurs below ∼ 3 K while at 2...
-
Article
Open AccessPhoto-induced persistent inversion of germanium in a 200-nm-deep surface region
The controlled manipulation of the charge carrier concentration in nanometer thin layers is the basis of current semiconductor technology and of fundamental importance for device applications. Here we show tha...
-
Article
Development of the collinear laser beam line at TRIUMF
The low-energy collinear laser beam line at ISAC routinely produces highly nuclear-spin polarized beams of 8Li + for depth-controlled studies of thin films and near-surface phenomena. It also is used for nuclear...
-
Article
Intrinsic Nanoscale Disorder and the Physical Properties of HTSC
Recent STM studies revealed nanoscale electronic disorder on the crystal surface in many cuprates. In BSCCO, strong correlations between oxygen defect distributions on its surface and both the gap map and the...
-
Article
Luminescence of Silicon Nanocrystals in SiO2: Effects of Excitation Spectrum
Silicon nanocrystals formed by ion implantation and annealing of fused silica wafers show a strong, broad photoluminescence (PL) peak centered at a wavelength between 750 and 900 nm, depending on the processin...
-
Article
Muonium as an experimental model of hydrogen point defects in semiconductors
Hydrogen is an important defect in semiconductors which can significantly alter the electrical and optical properties of the host. Information on isolated interstitial hydrogen is virtually nonexistent. Fortun...
-
Article
Spin dynamics in conducting polymers studied by μSR
We report studies of spin dynamics in the conducting polymers polyaniline and polypyrrole using both μ+SR and μ-SR techniques. These measurements reveal characteristic field dependences and cutoff frequencies for...
-
Article
Diffusion, trap**, and relaxation of Mu+ and Mu- in heavily‐doped GaAs
The diamagnetic muonium states in heavily doped GaAs are investigated with a combination of transverse‐field and longitudinal‐field μSR techniques. In metallic n‐type GaAs, formation of Mu- occurs because of the ...
-
Article
Muon spin relaxation investigation of frustrated antiferromagnetic pyrochlores A2B2O7
In a system where magnetic ions occupy the vertices of edge or corner sharing triangular units, the natural antiferromagnetic coupling between ions is geometrically frustrated. A wide variety of interesting ma...
-
Article
Electronic structure and dynamics of muonium in semiconductors
In this paper, a selection of recent results on muonium in semiconductors is presented. These are primarily taken from Si and GaAs and encompass the electronic structure of the diamagnetic centers, charge stat...
-
Article
Modelling hydrogen in silicate materials
The expectation that the hydroxyl analogue state of positive muons implanted in quartz should be stabilized by a suitable charge compensation centre is supported by preliminary data. The diamagnetic fraction c...
-
Article
The giant muon Knight shift in antimony: Evidence for a Kondo impurity
A detailed study has been undertaken of the muon Knight shift in high purity antimony single crystals. No periodic variations with magnetic field (de Haas–van Alphen oscillations) are observed. The temperature...
-
Article
Muon level crossing resonance in niobium
A useful guide to detecting quadrupole level crossing resonance (QLCR) spectra is to search in the vicinity of BE\cdot(\gamman/\gamma_μ), where BE is the onset magnetic field for the decoupling of the quadrupole ...
-
Article
Muonium diffusion in “dirty” solid krypton
Muonium spin dynamics in solid krypton in the presence of deliberately introduced impurities has been studied in the temperature range from 2 K to 115 K. At temperatures up to 40 K, muonium transverse relaxati...
-
Article
Probing magnetic order in heavily doped La2-xSrxNiO4+\delta with μSR
We report μSR measurements on a series of compounds with composition La2-xSrxNiO4+\delta where the net hole concentration x+2\delta is greater than 0.4. A magnetic transition is found in all the samples studied w...
-
Article
Diamagnetic muonium states in InP
Transverse and zero‐field muon spin relaxation reveal several diamagnetic muonium states in InP characterized by their static linewidths and diffusion properties. We tentatively associate low‐temperature diama...
