Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 235138 |
| Seitenumfang | 10 |
| Fachzeitschrift | Physical Review B |
| Jahrgang | 98 |
| Ausgabenummer | 23 |
| Publikationsstatus | Veröffentlicht - 18 Dez. 2018 |
Abstract
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Physical Review B, Jahrgang 98, Nr. 23, 235138, 18.12.2018.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Luttinger liquid and charge-density-wave phases in a spinless fermion wire on a semiconducting substrate
AU - Abdelwahab, Anas
AU - Jeckelmann, Eric
N1 - © 2018 American Physical Society
PY - 2018/12/18
Y1 - 2018/12/18
N2 - An interacting spinless fermion wire coupled to a three-dimensional (3D) semiconducting substrate is approximated by a narrow ladder model (NLM) with varying number of legs. We compute density distributions, gaps, charge density wave (CDW) order parameters, correlation functions, and the central charge using the density-matrix renormalization group method. Three ground-state phases are observed: a one-component Luttinger liquid, a quasi-one-dimensional (1D) CDW insulator, and a band insulator. We investigated the convergence of the NLM properties with increasing number of legs systematically and confirm that the NLM is a good approximation for the quasi-1D phases (Luttinger liquid and CDW) of the 3D wire-substrate model. The quantum phase transitions between these phases are investigated as function of the coupling between wire and substrate. The critical nearest-neighbor interaction increases with increasing coupling between wire and substrate and thus the substrate stabilizes the Luttinger liquid in the wire. Our study confirms that a Luttinger liquid or CDW insulator phase could occur in the low-energy properties of atomic wires deposited on semiconducting substrates.
AB - An interacting spinless fermion wire coupled to a three-dimensional (3D) semiconducting substrate is approximated by a narrow ladder model (NLM) with varying number of legs. We compute density distributions, gaps, charge density wave (CDW) order parameters, correlation functions, and the central charge using the density-matrix renormalization group method. Three ground-state phases are observed: a one-component Luttinger liquid, a quasi-one-dimensional (1D) CDW insulator, and a band insulator. We investigated the convergence of the NLM properties with increasing number of legs systematically and confirm that the NLM is a good approximation for the quasi-1D phases (Luttinger liquid and CDW) of the 3D wire-substrate model. The quantum phase transitions between these phases are investigated as function of the coupling between wire and substrate. The critical nearest-neighbor interaction increases with increasing coupling between wire and substrate and thus the substrate stabilizes the Luttinger liquid in the wire. Our study confirms that a Luttinger liquid or CDW insulator phase could occur in the low-energy properties of atomic wires deposited on semiconducting substrates.
KW - cond-mat.str-el
UR - http://www.scopus.com/inward/record.url?scp=85058933943&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1810.02190
DO - 10.48550/arXiv.1810.02190
M3 - Article
VL - 98
JO - Physical Review B
JF - Physical Review B
SN - 1550-235X
IS - 23
M1 - 235138
ER -