Negative Muon Spin Rotation Experiment"

Zero-field superfluid density in a d-wave superconductor evaluated from muon-spin-rotation experiments in the vortex state

We present an approach that allows the reconstruction of the zero-field magnetic penetration depth λ0 based on the results of muon-spin-rotation (μSR) experiments conducted in a superconductor in the vortex state. It was successfully applied to describe the μSR experiments in optimally doped (BiPb)2(SrLa)2CuO6+δ (OP Bi2201). We found that in unconventional d-wave superconductors (such as OP Bi2...

Study of the mixed state of La1.83Sr0.17CuO4 by means of muon-spin rotation and magnetization experiments in a low magnetic field

On the interpretation of muon-spin-rotation experiments in the mixed state of type-II superconductors

We argue that claims about magnetic field dependence of the magnetic field penetration depth λ, which were made on the basis of muon-spin-rotation (μSR) studies of some superconductors, originate from insufficient accuracy of theoretical models employed for the data analysis. We also reanalyze some of already published experimental data and demonstrate that numerical calculations of Brandt [E.H...

Spin ice: magnetic excitations without monopole signatures using muon spin rotation.

Theory predicts the low temperature magnetic excitations in spin ices consist of deconfined magnetic charges, or monopoles. A recent transverse-field (TF) muon spin rotation (μSR) experiment [S. T. Bramwell et al., Nature (London) 461, 956 (2009)] reports results claiming to be consistent with the temperature and magnetic field dependence anticipated for monopole nucleation-the so-called second...

Does Coherent Tunnelling of Positive Muons Cause Motional Narrowing?

Resonance lines broadened by dipolar interactions are a common phenomenon. The best studied cases are the nuclear magnetic resonance lines, for which Van Vleck's [ 1 ] classic analysis gives expressions for the moments of the shape. Recently work on muon spin resonance [2,3] stimulated questions of whether the linewidth depended on the number n of sites over which the muon moved coherently. Yao...