171 citations · 306 across the 11 of their papers we have counts for
11 papers
Intrinsic Bistability In Quantum Point Contacts with in-plane Side Gates
J. Charles, M. Cahay, R. S. Newrock
We study the onset of intrinsic bistability and accompanying hysteresis in a single quantum point contact (QPC) with in-plane side gates in the presence of lateral spin-orbit coupl…
Tunable All Electric Spin Polarizer
J. Charles, N. Bhandari, J. Wan +2
We propose a new device to create a tunable all-electric spin polarizer: a quantum point contact (QPC) with four gates -- two in-plane side gates in series. The first pair of gates…
Spin Polarization in a AlGaAs/GaAs Quantum Point Contact with in-plane side gates
N. Bhandari, P. P. Das, M. Cahay +2
We report the observation of an anomalous conductance plateau near G = 0.5 G0 (G0 = 2e2/h) in asymmetrically biased AlGaAs/GaAs quantum point contacts (QPCs), with in-plane side ga…
Anamolous conductance plateau in an asymmetrically biased InAs/InAlAs quantum point contact
P. P. Das, K. B. Chetry, N. Bhandari +4
The appearance and evolution of an anomalous conductance plateau at 0.4 (in units of 2e2/h) in an In0.52Al0.48As/InAs quantum point contact (QPC), in the presence of lateral spin-o…
Influence of Impurity Scattering on the Conductance Anomalies of Quantum Point Contacts with Lateral Spin-Orbit Coupling
J. Wan, M. Cahay, P. P. Das +1
We have recently shown that asymmetric lateral spin orbit coupling (LSOC) resulting from the lateral in-plane electric field of the confining potential of a side-gated quantum poin…
Spin Texture in Quantum Point Contacts in the Presence of Lateral Spin Orbit Coupling
J. Wan, M. Cahay, P. Debray +1
A non-equilibrium Green's function formalism is used to study in detail the ballistic conductance of asymmetrically biased side-gated quantum point contacts (QPCs) in the presence…