Thermal Expansion Coefficients of Bi${}_2$Se${}_3$ and Sb${}_2$Te${}_3$ Crystals from 10 K to 270 K

Abstract

Lattice constant of Bi${}_2$Se${}_3$ and Sb${}_2$Te${}_3$ crystals is determined by X-ray powder diffraction measurement in a wide temperature range. Linear thermal expansion coefficients ($\alpha$) of the crystals are extracted, and considerable anisotropy between ${\alpha }_{\parallel }$ and ${\alpha }_{\perp }$ is observed. The low temperature values of $\alpha$ can be fit well by the Debye model, while an anomalous behavior at above 150 K is evidenced and explained. Grüneisen parameters of the materials are also estimated at room temperature.

arXiv comment3 pages, 3 figures

References in corpus (2)

• Topological Insulators
• Topological insulators and superconductors

Cited by in corpus (20)

• Temperature dependence of Raman-active optical phonons in Bi_2Se_3 and Sb_2Te_3
• Temperature effects in the band structure of topological insulators
• Unraveling photoinduced spin dynamics in topological insulator Bi2Se3
• Structural and electronic properties of highly doped topological insulator Bi2Se3 crystals
• Anomalous thermal expansion of Sb${}_2$Te${}_3$ topological insulator
• Uniaxial-strain Control of Nematic Superconductivity in Sr${}_x$Bi${}_2$Se${}_3$
• Understanding Bulk Defects in Topological Insulators from Nuclear-Spin Interactions
• Optimization of the growth of the van der Waals materials Bi2Se3 and (Bi0.5In0.5)2Se3 by molecular beam epitaxy
• THz Surface Modes and Electron-Phonon Coupling in Bi${}_2$Se${}_3$(111)
• Thermal conductivity of Bi${}_2$Se${}_3$ from bulk to thin films: theory and experiment
• Carrier doping of Bi${}_2$Se${}_3$ surface by chemical adsorption -- a DFT study
• Effect of Sr doping on structure, morphology and transport properties of Bi${}_2$Se${}_3$ epitaxial thin films
• Accurate determination of thermoelectric figure of merit using ac Harman method with a four-probe configuration
• Temperature-dependent structural property and power factor of n type thermoelectric Bi0.90Sb0.10 and Bi0.86Sb0.14 alloys
• Pressure-induced superconductivity in SnSb2Te4
• Anharmonic phonon effects on linear thermal expansion of trigonal bismuth selenide and antimony telluride crystals
• Vibrational Properties of the Bi2Se3 Orthorhombic Metastable Phase
• Low-temperature thermal expansion of the topological material candidates $\beta$-PtBi${}_2$ and $\beta$-Bi${}_2$Pd
• Ultrafast switching of topological invariants by light-driven strain
• Anomalous temperature dependence of optical and acoustic phonons in Bi${}_2$Se${}_3$ arising from stacking faults