TY - JOUR
T1 - Pauli Spin Blockade and the Ultrasmall Magnetic Field Effect
AU - Danon, Jeroen
AU - Wang, Xuhui
AU - Manchon, Aurelien
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2013/8/6
Y1 - 2013/8/6
N2 - Based on the spin-blockade model for organic magnetoresistance, we present an analytic expression for the polaron-bipolaron transition rate, taking into account the effective nuclear fields on the two sites. We reveal the physics behind the qualitatively different magnetoconductance line shapes observed in experiment, as well as the ultrasmall magnetic field effect (USFE). Since our findings agree in detail with recent experiments, they also indirectly provide support for the spin-blockade interpretation of organic magnetoresistance. In addition, we predict the existence of a similar USFE in semiconductor double quantum dots tuned to the spin-blockade regime.
AB - Based on the spin-blockade model for organic magnetoresistance, we present an analytic expression for the polaron-bipolaron transition rate, taking into account the effective nuclear fields on the two sites. We reveal the physics behind the qualitatively different magnetoconductance line shapes observed in experiment, as well as the ultrasmall magnetic field effect (USFE). Since our findings agree in detail with recent experiments, they also indirectly provide support for the spin-blockade interpretation of organic magnetoresistance. In addition, we predict the existence of a similar USFE in semiconductor double quantum dots tuned to the spin-blockade regime.
UR - http://hdl.handle.net/10754/552876
UR - http://link.aps.org/doi/10.1103/PhysRevLett.111.066802
UR - http://www.scopus.com/inward/record.url?scp=84881535658&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.111.066802
DO - 10.1103/PhysRevLett.111.066802
M3 - Article
SN - 0031-9007
VL - 111
JO - Physical Review Letters
JF - Physical Review Letters
IS - 6
ER -