scholarly journals Electron spin relaxation in radical pairs: Beyond the Redfield approximation

2019 ◽  
Vol 151 (15) ◽  
pp. 154117 ◽  
Author(s):  
Thomas P. Fay ◽  
Lachlan P. Lindoy ◽  
David E. Manolopoulos
Keyword(s):  
Spin Relaxation ◽  
Electron Spin ◽  
Radical Pairs ◽  
Electron Spin Relaxation

scholarly journals Electron spin relaxation in cryptochrome-based magnetoreception

2016 ◽  
Vol 18 (18) ◽  
pp. 12443-12456 ◽  
Author(s):  
Daniel R. Kattnig ◽  
Ilia A. Solov'yov ◽  
P. J. Hore
Keyword(s):  
Protein Dynamics ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Migratory Birds ◽  
Magnetic Compass ◽  
Radical Pairs ◽  
Electron Spin Relaxation ◽  
The Impact

The magnetic compass sense of migratory birds is thought to rely on magnetically sensitive radical pairs formed photochemically in cryptochrome proteins in the retina. Here we assess the impact of protein dynamics on the sensitivity of the compass.

scholarly journals Effects of disorder and motion in a radical pair magnetoreceptor

2009 ◽  
Vol 7 (suppl_2) ◽  
Author(s):  
Jason C. S. Lau ◽  
Nicola Wagner-Rundell ◽  
Christopher T. Rodgers ◽  
Nicholas J. B. Green ◽  
P. J. Hore
Keyword(s):  
Spin Relaxation ◽  
Electron Spin ◽  
Radical Pair ◽  
Experimental Studies ◽  
Magnetic Interactions ◽  
Radical Pairs ◽  
Electron Spin Relaxation ◽  
Effects Of Disorder ◽  
Critical Requirement ◽  
Recombination Reactions

A critical requirement in the proposed chemical model of the avian magnetic compass is that the molecules that play host to the magnetically sensitive radical pair intermediates must be immobilized and rotationally ordered within receptor cells. Rotational disorder would cause the anisotropic responses of differently oriented radical pairs within the same cell to interfere destructively, while rapid molecular rotation would tend to average the crucial anisotropic magnetic interactions and induce electron spin relaxation, reducing the sensitivity to the direction of the geomagnetic field. So far, experimental studies have been able to shed little light on the required degree of ordering and immobilization. To address this question, computer simulations have been performed on a collection of radical pairs undergoing restricted rigid-body rotation, coherent anisotropic spin evolution, electron spin relaxation and spin-selective recombination reactions. It is shown that the ordering and motional constraints necessary for efficient magnetoreception can be simultaneously satisfied if the radical pairs are uniaxially ordered with a moderate order parameter and if their motional correlation time is longer than about a quarter of their lifetime.

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

Control of the electron spin relaxation by the built-in piezoelectric field in InGaAs quantum wells

2016 ◽  
Vol 108 (8) ◽  
pp. 082103 ◽  
Author(s):  
S. Azaizia ◽  
A. Balocchi ◽  
H. Carrère ◽  
P. Renucci ◽  
T. Amand ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Piezoelectric Field

scholarly journals Submillisecond electron spin relaxation in InP quantum dots

2005 ◽  
Vol 72 (15) ◽  
Author(s):  
Michio Ikezawa ◽  
Bipul Pal ◽  
Yasuaki Masumoto ◽  
Ivan V. Ignatiev ◽  
Sergey Yu. Verbin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Inp Quantum Dots
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