Electron-spin resonance of atomic hydrogen and deuterium at low temperatures

1985 ◽  
Vol 31 (7) ◽  
pp. 4199-4206 ◽  
Author(s):  
R. Mayer ◽  
G. Seidel
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Low Temperatures ◽  
Atomic Hydrogen ◽  
Spin Resonance

Cryogenic 2 mm wave electron spin resonance spectrometer with application to atomic hydrogen gas below 100 mK

2004 ◽  
Vol 75 (1) ◽  
pp. 94-98 ◽  
Author(s):  
Sergei Vasilyev ◽  
Jarno Järvinen ◽  
Esa Tjukanoff ◽  
Alexander Kharitonov ◽  
Simo Jaakkola
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Atomic Hydrogen ◽  
Hydrogen Gas ◽  
Spin Resonance ◽  
Electron Spin Resonance Spectrometer

Electron spin resonance studies of oriented NO2 and NF2 in inert matrices at low temperatures

1970 ◽  
Vol 48 (5) ◽  
pp. 805-817 ◽  
Author(s):  
C. A. McDowell ◽  
H. Nakajima ◽  
P. Raghunathan
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Low Temperatures ◽  
Hyperfine Splitting ◽  
Preferential Orientation ◽  
Paramagnetic Species ◽  
Host Matrix ◽  
Argon Matrix ◽  
Spin Resonance ◽  
Inert Matrices

Preferentially oriented NO2 and NF2 in inert matrices have been studied in some detail by electron spin resonance methods at 4.2 °K. Methods are discussed which may optimize the degree of preferential orientation of the paramagnetic species in appropriate matrices. The results demonstrate that while neon is the best host matrix for orienting NO2, argon is to be preferred for NF2. The g-values and hyperfine splitting data have been accurately determined and are compared with earlier values. Motional processes are suggested to explain the spectra obtained for NF2 in an argon matrix in the temperature range 4–30 °K.

ELECTRON SPIN RESONANCE SPECTRA OF 15N-CENTERED RADICALS AT LOW TEMPERATURES: I. THE RADICAL NH3+ TRAPPED IN NH4ClO4

1965 ◽  
Vol 43 (5) ◽  
pp. 1012-1016 ◽  
Author(s):  
M. Fujimoto ◽  
J. R. Morton
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin Resonance Spectrum ◽  
Ammonium Perchlorate ◽  
Electron Spin ◽  
Rotational Motion ◽  
Low Temperatures ◽  
Resonance Spectrum ◽  
Radical Theory ◽  
Spin Resonance

The electron spin resonance spectrum of NH3+ trapped in ammonium perchlorate (95% 15N) was examined at 300 °K, 77 °K, and 4 °K. The spectra are interpreted in terms of π-radical theory, and demonstrate the different stages in the freezing-out of the rotational motion of the ion.

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