Hartree–Fock investigation of muon trapping in the chemical ferromagnet 4-( p-chlorobenzylideneamino)-TEMPO

First-principles unrestricted Hartree–Fock theory is used to obtain the trapping sites for muon and muonium in ferromagnetic p-Cl–Ph–CHN-TEMPO (4-( p-chlorobenzylideneamino)- 2,2,6,6-tetramethylpiperidin-1-yloxyl) and the hyperfine interaction tensors for these sites. Using the calculated hyperfine...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2000-08, Vol.289, p.132-136
Main Authors: Jeong, Junho, Briere, Tina M., Sahoo, N., Das, T.P., Ohira, Seiko, Nishiyama, K., Nagamine, K.
Format: Article
Language:English
Subjects:
Chemical ferromagnet
easy axis
Hyperfine interaction theory
Muon spin resonance
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Summary:First-principles unrestricted Hartree–Fock theory is used to obtain the trapping sites for muon and muonium in ferromagnetic p-Cl–Ph–CHN-TEMPO (4-( p-chlorobenzylideneamino)- 2,2,6,6-tetramethylpiperidin-1-yloxyl) and the hyperfine interaction tensors for these sites. Using the calculated hyperfine interactions to fit the two experimentally observed muon spin rotation frequencies, it has been concluded that the two most likely candidates for explaining the experimental data are a muon trapped at the chlorine site and a singlet muonium state at the radical oxygen. The direction of the easy axis is also determined.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(00)00277-5