Abstract
We investigate the properties of conduction electrons in single-walled armchair carbon nanotubes in the presence of both transverse electric and magnetic fields. We find that these fields provide a controlled means of tuning low-energy band-structure properties such as inducing gaps in the spectrum, breaking various symmetries, and altering the Fermi velocities. We show that the fields can strongly affect electron-electron interactions yielding tunable Luttinger-liquid physics, the possibility of spin-charge-band separation, and a competition between spin-density-wave and charge-density-wave orders. For short tubes, the fields can alter boundary conditions and associated single-particle level spacings as well as quantum dot behavior.
| Original language | English (US) |
|---|---|
| Article number | 205421 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 79 |
| Issue number | 20 |
| DOIs | |
| State | Published - May 1 2009 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Transverse-field-induced effects in carbon nanotubes. / Degottardi, Wade; Wei, Tzu Chieh; Vishveshwara, Smitha.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 79, No. 20, 205421, 01.05.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transverse-field-induced effects in carbon nanotubes
AU - Degottardi, Wade
AU - Wei, Tzu Chieh
AU - Vishveshwara, Smitha
PY - 2009/5/1
Y1 - 2009/5/1
N2 - We investigate the properties of conduction electrons in single-walled armchair carbon nanotubes in the presence of both transverse electric and magnetic fields. We find that these fields provide a controlled means of tuning low-energy band-structure properties such as inducing gaps in the spectrum, breaking various symmetries, and altering the Fermi velocities. We show that the fields can strongly affect electron-electron interactions yielding tunable Luttinger-liquid physics, the possibility of spin-charge-band separation, and a competition between spin-density-wave and charge-density-wave orders. For short tubes, the fields can alter boundary conditions and associated single-particle level spacings as well as quantum dot behavior.
AB - We investigate the properties of conduction electrons in single-walled armchair carbon nanotubes in the presence of both transverse electric and magnetic fields. We find that these fields provide a controlled means of tuning low-energy band-structure properties such as inducing gaps in the spectrum, breaking various symmetries, and altering the Fermi velocities. We show that the fields can strongly affect electron-electron interactions yielding tunable Luttinger-liquid physics, the possibility of spin-charge-band separation, and a competition between spin-density-wave and charge-density-wave orders. For short tubes, the fields can alter boundary conditions and associated single-particle level spacings as well as quantum dot behavior.
UR - http://www.scopus.com/inward/record.url?scp=67649097713&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649097713&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.79.205421
DO - 10.1103/PhysRevB.79.205421
M3 - Article
AN - SCOPUS:67649097713
VL - 79
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 20
M1 - 205421
ER -