Details
| Original language | English |
|---|---|
| Pages (from-to) | 7991-7998 |
| Number of pages | 8 |
| Journal | Physical Review B |
| Volume | 48 |
| Issue number | 11 |
| Publication status | Published - 1 Jan 1993 |
| Externally published | Yes |
Abstract
Low-temperature (T50 mK) transport characteristics are measured for parallel wires coupled by a ballistic window. The structure is fabricated by focused Ga ion-beam scanning and subsequent annealing. The size of the structure is modified by in-plane-gated operation. At zero magnetic field, the transport characteristics are governed by the mode matching between one-dimensional modes in the wires and quasi-zero-dimensional modes in the window. When four-terminal resistance is measured as a function of in-plane-gate voltage, a small period oscillation is superimposed on the background oscillation corresponding to the subband population in each wire. At intermediate magnetic fields, Aharonov-Bohm interference effects are observed in both the magnetic field and the in-plane-gate voltage dependence. These originate from the circulating channel in the window. Theoretical calculations essentially reproduce the experimental results, supporting these explanations.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Physical Review B, Vol. 48, No. 11, 01.01.1993, p. 7991-7998.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Transport characteristics of a window-coupled in-plane-gated wire system
AU - Hirayama, Y.
AU - Tokura, Y.
AU - Wieck, A. D.
AU - Koch, S.
AU - Haug, R. J.
AU - Von Klitzing, K.
AU - Ploog, K.
PY - 1993/1/1
Y1 - 1993/1/1
N2 - Low-temperature (T50 mK) transport characteristics are measured for parallel wires coupled by a ballistic window. The structure is fabricated by focused Ga ion-beam scanning and subsequent annealing. The size of the structure is modified by in-plane-gated operation. At zero magnetic field, the transport characteristics are governed by the mode matching between one-dimensional modes in the wires and quasi-zero-dimensional modes in the window. When four-terminal resistance is measured as a function of in-plane-gate voltage, a small period oscillation is superimposed on the background oscillation corresponding to the subband population in each wire. At intermediate magnetic fields, Aharonov-Bohm interference effects are observed in both the magnetic field and the in-plane-gate voltage dependence. These originate from the circulating channel in the window. Theoretical calculations essentially reproduce the experimental results, supporting these explanations.
AB - Low-temperature (T50 mK) transport characteristics are measured for parallel wires coupled by a ballistic window. The structure is fabricated by focused Ga ion-beam scanning and subsequent annealing. The size of the structure is modified by in-plane-gated operation. At zero magnetic field, the transport characteristics are governed by the mode matching between one-dimensional modes in the wires and quasi-zero-dimensional modes in the window. When four-terminal resistance is measured as a function of in-plane-gate voltage, a small period oscillation is superimposed on the background oscillation corresponding to the subband population in each wire. At intermediate magnetic fields, Aharonov-Bohm interference effects are observed in both the magnetic field and the in-plane-gate voltage dependence. These originate from the circulating channel in the window. Theoretical calculations essentially reproduce the experimental results, supporting these explanations.
UR - http://www.scopus.com/inward/record.url?scp=0038856453&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.48.7991
DO - 10.1103/PhysRevB.48.7991
M3 - Article
AN - SCOPUS:0038856453
VL - 48
SP - 7991
EP - 7998
JO - Physical Review B
JF - Physical Review B
SN - 0163-1829
IS - 11
ER -