What lurks below the last plateau: experimental studies of the 0.7× 2e2/h conductance anomaly in one-dimensional systems

AP Micolich - Journal of Physics: Condensed Matter, 2011 - iopscience.iop.org
The integer quantised conductance of one-dimensional electron systems is a well-
understood effect of quantum confinement. A number of fractionally quantised plateaus are …

Wigner crystal physics in quantum wires

JS Meyer, KA Matveev - Journal of Physics: Condensed Matter, 2008 - iopscience.iop.org
The physics of interacting quantum wires has attracted a lot of attention recently. When the
density of electrons in the wire is very low, the strong repulsion between electrons leads to …

Kondo model for the “0.7 anomaly” in transport through a quantum point contact

Y Meir, K Hirose, NS Wingreen - Physical review letters, 2002 - APS
Experiments on quantum point contacts have highlighted an anomalous conductance
plateau around 0.7 (2 e 2/h), with features suggestive of the Kondo effect. Here, an …

Conductance of a quantum wire in the Wigner-crystal regime

KA Matveev - Physical review letters, 2004 - APS
We study the effect of Coulomb interactions on the conductance of a single-mode quantum
wire connecting two bulk leads. When the density of electrons in the wire is very low, they …

Density-dependent spin polarization in ultra-low-disorder quantum wires

DJ Reilly, TM Buehler, JL O'Brien, AR Hamilton… - Physical review …, 2002 - APS
There is controversy as to whether a one-dimensional (1D) electron gas can spin polarize in
the absence of a magnetic field. Together with a simple model, we present conductance …

Conductance of a quantum wire at low electron density

KA Matveev - Physical Review B—Condensed Matter and Materials …, 2004 - APS
We study the transport of electrons through a long quantum wire connecting two bulk leads.
As the electron density in the wire is lowered, the Coulomb interactions lead to short-range …

Quantum thermal conductance of electrons in a one-dimensional wire

O Chiatti, JT Nicholls, YY Proskuryakov, N Lumpkin… - Physical review …, 2006 - APS
We use an electron thermometer to measure the temperature rise of approximately 2× 10 5
electrons in a two-dimensional box, due to heat flow into the box through a ballistic one …

Suspended semiconductor nanostructures: physics and technology

AG Pogosov, AA Shevyrin, DA Pokhabov… - Journal of Physics …, 2022 - iopscience.iop.org
The current state of research on quantum and ballistic electron transport in semiconductor
nanostructures with a two-dimensional electron gas separated from the substrate and …

Local moment formation in quantum point contacts

K Hirose, Y Meir, NS Wingreen - Physical review letters, 2003 - APS
Spin-density-functional theory of quantum point contacts (QPCs) reveals the formation of a
local moment with a net of one electron spin in the vicinity of the point contact—supporting …

Phenomenological model for the 0.7 conductance feature in quantum wires

DJ Reilly - Physical Review B—Condensed Matter and Materials …, 2005 - APS
One-dimensional (1D) quantum wires exhibit a conductance feature near 0.7× 2 e 2∕ h in
connection with many-body interactions involving the electron spin. With the possibility of …