Full counting statistics with spin-sensitive detectors reveals spin singlets.
We study the full counting statistics of electric current to several drain terminals with spin-dependent entrance conductances. We show that the statistics of charge transfers can be interpreted in terms of single electrons and spin-singlet pairs coming from the source. If the source contains transport channels of high transparency, a significant fraction of electrons comes in spin-singlet pairs.
Lorenzo
Antonio Di
AD
Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.
Nazarov
Yuli V
YV