Positronium spin exchange with spin 1/2 paramagnetic species

1996 ◽  
Vol 74 (7-8) ◽  
pp. 385-400 ◽  
Author(s):  
Masayoshi Senba
Keyword(s):  
Electron Spin ◽  
Spin Exchange ◽  
Spin Dynamics ◽  
Muon Spin ◽  
Muon Spin Rotation ◽  
Paramagnetic Species ◽  
Spin Singlet ◽  
Spin Resonance ◽  
The Difference ◽  
Electron Spin Dynamics

Electron spin exchange of positronium (Ps = e+e−) with spin 1/2 paramagnetic species was investigated. First, the concept of spin flip (nonflip) collisions is examined in the light of the difference in phase shifts between electron spin singlet and triplet encounters. Then, the effects of spin exchange on positron spin dynamics and on Ps lifetimes are discussed and results are compared to muon (electron) spin dynamics in the muon spin rotation (electron spin resonance) techniques.

Applications of ESR to Carbonaceous Materials

1982 ◽  
Vol 36 (1) ◽  
pp. 52-57 ◽  
Author(s):  
L. S. Singer ◽  
I. C. Lewis
Keyword(s):  
Free Radicals ◽  
Electron Spin Resonance ◽  
Low Temperature ◽  
Electron Spin ◽  
Paramagnetic Species ◽  
Carbonaceous Materials ◽  
Conduction Electrons ◽  
Spin Resonance ◽  
Higher Temperature ◽  
Low Temperature Pyrolysis

The applications of electron spin resonance (ESR) to carbonaceous materials are reviewed. The stable paramagnetic species observed in the products of low-temperature pyrolysis are odd-alternate neutral free radicals, whereas the unpaired spins of higher temperature carbons and graphites are primarily conduction electrons. The variety of ESR properties and phenomena requires special attention to techniques of measurement and interpretations of results. The relevance to the carbonization process of the free radicals observed by ESR is also discussed.

scholarly journals Spin dynamics in CuGeO3 studied by muon spin rotation

1994 ◽  
Vol 96 (2) ◽  
pp. 223-226 ◽  
Author(s):  
A. Lappas ◽  
K. Prassides ◽  
A. Amato ◽  
R. Feyerherm ◽  
F. N. Gygax ◽  
...  
Keyword(s):  
Spin Dynamics ◽  
Muon Spin ◽  
Spin Rotation ◽  
Muon Spin Rotation

scholarly journals Nuclear-spin-pattern control of electron-spin dynamics in a series of V(iv) complexes

2019 ◽  
Vol 10 (36) ◽  
pp. 8447-8454 ◽  
Author(s):  
Cassidy E. Jackson ◽  
Chun-Yi Lin ◽  
Spencer H. Johnson ◽  
Johan van Tol ◽  
Joseph M. Zadrozny
Keyword(s):  
Spin Relaxation ◽  
Electron Spin ◽  
Nuclear Spin ◽  
Spin Dynamics ◽  
Relaxation Times ◽  
Open Shell ◽  
Pattern Control ◽  
Electron Spin Dynamics

This report details how the design of specific nuclear-spin patterns on ligands modulates spin-relaxation times in a set of open-shell vanadium(iv) complexes.

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