Open AccessEstimation of Time Evolution of Muon Spin Polarization in 14N and 15N Systems
Author(s) -
Amba Datt Pant
Publication year - 2021
Publication title -
journal of nepal physical society/journal of nepali physical society
Language(s) - English
Resource type - Journals
eISSN - 2738-9537
pISSN - 2392-473X
DOI - 10.3126/jnphyssoc.v7i4.42925
Subject(s) - muon , muon spin spectroscopy , physics , spectral line , polarization (electrochemistry) , spin polarization , dipole , magnetic field , oscillation (cell signaling) , atomic physics , spin (aerodynamics) , condensed matter physics , nuclear physics , electron , chemistry , quantum mechanics , biochemistry , thermodynamics
In muon spin rotation and relaxation (SR) method, time evolution of muon spin polarization provides the information about local electronic and spin dynamic states of the material. Quantum simulation and estimated frequency of calculated the spectra help to interpret the observed polarization spectra. Based on spin dipole interaction between the muon and nearby nuclei (14N, 15N and proton) in zero field measurement case, muon spin polarization spectra and corresponding frequencies are estimated using the quantum simulation. The oscillation frequency increases with approaching the muon towards the nuclei. Variation of separation between frequency positions with changing distance between muon and nuclei indicates the distribution of the magnetic field at the muon site. This study will help to distinguish the origin of oscillation in zero field μSR spectra in the isolated system containing 14N and 15N nuclei (e.g., glycine with 14N, glycine with 15N).