title: Probing the microscopic structure of bound states in quantum point contacts.
abstract: Using an approach that allows us to probe the electronic structure of strongly pinched-off quantum point contacts (QPCs), we provide evidence for the formation of self-consistently realized bound states (BSs) in these structures. Our approach exploits the resonant interaction between closely coupled QPCs, and demonstrates that the BSs may give rise to a robust confinement of single spins, which show clear Zeeman splitting in a magnetic field.
authors.affiliation: Department of Electrical Engineering, University at Buffalo, the State University of New York, Buffalo, New York 14260-1920, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Yoon
authors.forename: L
authors.initials: L
authors.lastname: Mourokh
authors.forename: T
authors.initials: T
authors.lastname: Morimoto
authors.forename: N
authors.initials: N
authors.lastname: Aoki
authors.forename: Y
authors.initials: Y
authors.lastname: Ochiai
authors.forename: J L
authors.initials: JL
authors.lastname: Reno
authors.forename: J P
authors.initials: JP
authors.lastname: Bird