scholarly journals Electron spin relaxation properties of atomic hydrogen encapsulated in octavinyl POSS cages

2020 ◽  
Vol 22 (27) ◽  
pp. 15751-15758 ◽  
Author(s):  
George Mitrikas ◽  
Stavroula Menenakou
Keyword(s):  
Double Bond ◽  
Temperature Dependence ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Atomic Hydrogen ◽  
Spin Coherence ◽  
Electron Spin Relaxation ◽  
Relaxation Properties ◽  
Carbon Double Bond

The electron spin coherence of atomic hydrogen trapped in Vi8Si8O12 cages exhibits a modest temperature dependence compared to methyl-containing cages due to the inhibited rotation about the carbon–carbon double bond.

Temperature dependence of electron spin relaxation in bulk GaN

2010 ◽  
Vol 81 (15) ◽  
Author(s):  
J. H. Buß ◽  
J. Rudolph ◽  
F. Natali ◽  
F. Semond ◽  
D. Hägele
Keyword(s):  
Temperature Dependence ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Bulk Gan

Intramolecular reorientation, an electron spin relaxation process in solutions of discrete paramagnetic transition-metal complexes

1978 ◽  
Vol 31 (11) ◽  
pp. 2355 ◽  
Author(s):  
DM Doddrell ◽  
DT Pegg ◽  
MR Bendall ◽  
AK Gregson
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Temperature Dependence ◽  
Transition Metal Complexes ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Potential Energy Profile ◽  
Methyl Proton ◽  
Electron Spin Relaxation ◽  
Time Modulation

Time modulation of the g-tensor by intramolecular reorientation between structurally equivalent molecular arrangements is postulated to dominate electron spin relaxation in solutions of some paramagnetic transition-metal complexes. The process is treated theoretically and it is shown that the resulting electron spin relaxation time depends on the correlation time for intramolecular reorientation. The temperature dependence of the nuclear T1 thus yields information concerning the potential energy profile for intramolecular reorientation. Experimental results on the field dependence of the temperature dependence of T1 of the methyl proton in Ru(acac)3 are in accord with the theory.

The duality of electron spin and resistivity relaxation processes in sodium and potassium metals

1984 ◽  
Vol 395 (1809) ◽  
pp. 341-351 ◽  
Keyword(s):  
Electrical Resistivity ◽  
Temperature Dependence ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Striking Similarity ◽  
Relaxation Processes ◽  
Electron Spin Relaxation ◽  
Sodium And Potassium

Electron spin resonance (e. s. r.) spectra of small particles ( ca . 500 nm) of sodium and potassium metals have been recorded over the temperature range 4─100 K. Analysis of the e. s. r. lineshapes yields values of the electron spin-lattice relaxation rate T -1 1 . Both electron spin relaxation and electrical resistivity in the alkalis are governed by the scattering of high velocity conduction electrons by lattice phonons. The temperature dependence of T -1 1 bears a striking similarity to that of the electrical resistivity. In both cases the temperature dependence is adequately described by a Bloch-Grüneisen function for temperatures above ½ θ , where θ is the Debye temperature. If a Debye model is used to approximate the behaviour of lattice vibrational modes, the derived Debye temperatures from the spin relaxation data are about 20% lower in the particulate samples of sodium and potassium than in the corresponding bulk metals.

scholarly journals Electron Spin Relaxation Studies of Polydopamine Radicals

2021 ◽  
Vol 125 (3) ◽  
pp. 841-849 ◽  
Author(s):  
Krzysztof Tadyszak ◽  
Radosław Mrówczyński ◽  
Raanan Carmieli
Keyword(s):  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Relaxation Studies
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