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Selected Works of Olga Goulko
Article
Effect of Spin-Orbit Interactions on the 0.7 Anomaly in Quantum Point Contacts
Physical Review Letters (2014)
  • Olga Goulko, Ludwig Maximilians Universitaet Muenchen
  • Florian Bauer, Ludwig Maximilians Universitaet Muenchen
  • Jan Heyder, Ludwig Maximilians Universitaet Muenchen
  • Jan von Delft, Ludwig Maximilians Universitaet Muenchen
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Abstract
We study how the conductance of a quantum point contact is affected by spin-orbit interactions, for systems at zero temperature both with and without electron-electron interactions. In the presence of spin-orbit coupling, tuning the strength and direction of an external magnetic field can change the dispersion relation and hence the local density of states in the point contact region. This modifies the effect of electron-electron interactions, implying striking changes in the shape of the 0.7-anomaly and introducing additional distinctive features in the first conductance step.
Keywords
  • spin-orbit coupling,
  • electronic transport
Disciplines
Publication Date
December 31, 2014
DOI
10.1103/PhysRevLett.113.266402
Citation Information
Olga Goulko, Florian Bauer, Jan Heyder and Jan von Delft. "Effect of Spin-Orbit Interactions on the 0.7 Anomaly in Quantum Point Contacts" Physical Review Letters Vol. 113 Iss. 26 (2014) p. 266402
Available at: http://works.bepress.com/olga-goulko/12/