Temperature dependence of the excitonic insulator phase model in 1T-TiSe2

Abstract

Recently, detailed calculations of the excitonic insulator phase model adapted to the case of 1\textit{T}-TiSe${}_2$ have been presented. Through the spectral function theoretical photoemission intensity maps can be generated which are in very good agreement with experiment [Phys. Rev. Lett. {\bf 99}, (2007) 146403]. In this model, excitons condensate in a BCS-like manner and give rise to a charge density wave, characterized by an order parameter. Here, we assume an analytical form of the order parameter, allowing to perform temperature dependent calculations. The influence of this order parameter on the electronic spectral function, to be observed in photoemission spectra, is discussed. The resulting chemical potential shift and an estimation of the resistivity are also shown.

arXiv comment4 pages, 3 figures, paper submitted at the Strongly Correlated Electron System conference, Brazil, 2008

References in corpus (5)

• Fermi surface nesting and the origin of Charge Density Waves in metals
• Evidence for an excitonic insulator phase in 1T-TiSe${}_2$
• Semimetal to semimetal charge density wave transition in 1T-TiSe${}_2$
• Spontaneous exciton condensation in 1T-TiSe2: a BCS-like approach
• On the possibility of an excitonic insulator at the semiconductor-semimetal transition

Cited by in corpus (9)

• Temperature dependent photoemission on 1T-TiSe2: Interpretation within the exciton condensate phase model
• Compensated electron and hole pockets in an underdoped high Tc superconductor
• An Alternative Interpretation of Recent ARPES Measurements on TiSe2
• On the origin of the anomalous peak in the resistivity of TiSe${}_2$
• Exciton-phonon interactions and superconductivity bordering charge order in TiSe2
• Correlation between electronic and structural orders in 1T-TiSe2
• Van der Waals Schottky barriers as interface probes of the correlation between chemical potential shifts and charge density wave formation in 1T-TiSe${}_2$ and 2H-NbSe${}_2$
• Spectroscopic fingerprints of many-body renormalizations in$1T$-TiSe${}_2$
• Emergent surface resonance from charge density wave symmetry breaking in TiSe2