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.

2021年11月18日 · Here we combine multitemperature single-crystal synchrotron X-ray diffraction (SCSXRD) and the maximum entropy method (MEM) to obtain the electron density distribution for probing structural...

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...

TlSe is I4/mcm structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a 10-coordinate geometry to eight equivalent Se1- atoms. All Tl–Se bond lengths are 3.53 Å.

2015年9月25日 · By using differential thermal analysis (DTA), X-ray analysis and electromotive force (EMF) methods the Tl–Se–I system was investigated in the Tl–TlI–Se composition range. Several polythermal sections, the isothermal section at 300 K and the projection of the liquidus surface of the system were constructed.

2017年5月1日 · Hall measurements indicate that Cu 2 TlSe 2 is hole-type metal and Cu 2 TlTe 2 is semi-metal with both hole and electron carriers. Electronic band structure calculations verify that Cu 2 TlSe 2 is a p-type metal; while a shift of Fermi level (∼0.22 eV), caused by variable valence of Cu ion, leads to coexistence of electron and hole carriers ...

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.

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.

Explore the - crystalline lattice structure of TlSe rt with lattice parameters, 3d interactive image of unit cell, cif file, lattice constants & more.

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...