Lu, Hua ORCID: https://orcid.org/0000-0002-4392-6562, Zhang, Xiaohong and Titman, J.M. (1997) Measuring distributions of jump rates in disordered metal–hydrogen systems by nuclear magnetic relaxation. Journal of Alloys and Compounds, 253. pp. 425-427. ISSN 0925-8388 (doi:10.1016/S0925-8388(96)03083-6)

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Abstract

Monte Carlo calculations of the nuclear magnetic relaxation rate in a disordered metal–hydrogen system having a distribution of jump rates are reported. The calculations deal specifically with the spin-locked rotating-frame relaxation time T1ρ. The results demonstrate that the temperature variation of the rate is only weakly dependent on the distribution and it is therefore unlikely that the jump rate distribution can be extracted from relaxation measurements in which temperature is the main variable. It is shown that the alternative of measuring the relaxation rate over a wide range of spin-locking field strengths at a constant temperature can lead to an evaluation of the distribution.

Item Type:	Article
Uncontrolled Keywords:	Monte Carlo calculations, metal–hydrogen systems, nuclear magnetic relaxation
Subjects:	Q Science > QA Mathematics Q Science > QD Chemistry
Pre-2014 Departments:	School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Mechanics & Reliability Group School of Computing & Mathematical Sciences > Department of Mathematical Sciences
Related URLs:	Publisher
Last Modified:	20 Mar 2019 11:54
URI:	http://gala.gre.ac.uk/id/eprint/271

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