2014年10月30日 · Thallium selenide–polyamide composite materials surfaces synthesized. Mixed phase composition confirmed by XRD. Increased temperature resulted in a denser surface packing. Urbach energies correlated with AFM showing decreased structural disorder. Annealing in N 2 at 100 °C yielded a single TlSe phase.

In the present work, we have systematically investigated the high-pressure behavior of TlInTe2 using Raman spectroscopy, synchrotron X-ray diffraction (XRD), and transport measurements, in...

2021年6月21日 · In the present work, we have systematically investigated the high-pressure behavior of TlInTe2 using Raman spectroscopy, synchrotron X-ray diffraction (XRD), and transport measurements, in combination with first principles crystal structure prediction (CSP) based on evolutionary approach.

Here, we report superconductivity induced by high pressure in three thallium-based materials, covering the phase transition from a normal insulator (TlBiS 2) to a topological insulator (TlBiSe 2) through a Dirac semimetal (TlBiSeS).

2024年6月28日 · In this paper, we examine the application of density functional theory (DFT) to determine the structural and optoelectronic properties of the tetragonal monochalcogenide TlSe, in order to assess its suitability for use in optoelectronic devices, photovoltaics, etc.

2012年12月20日 · The Tl 2 Se–In 2 Se 3 cross section of the Tl–In-Se system was studied by both the common thermal analysis (TA) and the X-ray diffraction (XRD). From the results of the studies the phase diagram for the quasi-binary Tl 2 Se–In 2 Se 3 …

genides, the TlSe family of quasi-one dimensional chain materials with the Zintl-type structure exhibits novel phenomena under high pressure. In the present work, we have systematically investigated the high-pressure behavior of TlInTe 2 using Raman spectroscopy, synchrotron X-ray diffraction (XRD), and transport measurements,

2020年4月1日 · The HP angular dispersive x-ray diffraction (AD-XRD) experiments were conducted on TlFeSe 2 powder samples at room temperature in the 4W2 beamline of Beijing Synchrotron Radiation Facility (BSRF) using monochromatic x-ray radiation of wavelength λ = 0.6199 Å. High pressure was generated using a symmetric …

Three first order phase transitions are found in TlS: TlS I (TlSe-type) → TlS II (α-NaFeO 2-type) → TlS III (distorted α-NaFe 2 O-type) → TlS IV (CsCl-type) at p = 5, 10, and 25 GPa, respectively. Phase TlS II is metastable under normal conditions and reveals semiconductor properties.

2014年10月30日 · Thallium selenide–polyamide composite materials surfaces synthesized. Mixed phase composition confirmed by XRD. Increased temperature resulted in a denser surface packing. Urbach energies correlated with AFM showing decreased structural disorder. Annealing in N 2 at 100 °C yielded a single TlSe phase.