Results 21 to 30 of about 3,569 (198)

Interstitial‐Electron‐Induced Topological Molecular Crystals

Advanced Physics Research, 2023
Topological phases are usually unreachable in molecular solids, which are characterized by weakly dispersed energy bands with a large gap, in contrast to topological materials. In this work, however, it is proposed that nontrivial electronic topology may
Tonghua Yu, Ryotaro Arita, Motoaki Hirayama   +2 more
doaj   +1 more source

Gas phase analogs of stable sodium-tin Zintl ions: Anion photoelectron spectroscopy and electronic structure [PDF]

, 2011
Mass spectrometry and photoelectron spectroscopy together with first principles theoretical calculations have been used to study the electronic and geometric properties of the following sodium-tin, cluster anion/neutral cluster combinations, (NanSn4 ...
Bowen, K. H., Jr., Khanna, S. N., Nilles, J. M., Reber, A. C., Thomas, O. C., Zheng, W.-J.   +5 more
core   +2 more sources

On the New Oxyarsenides Eu₅Zn₂As₅O and Eu₅Cd₂As₅O

Crystals, 2020
The new quaternary phases Eu5Zn2As5O and Eu5Cd2As5O have been synthesized by metal flux reactions and their structures have been established through single-crystal X-ray diffraction. Both compounds crystallize in the centrosymmetric space group Cmcm (No.
Gregory M. Darone, Sviatoslav A. Baranets, Svilen Bobev   +2 more
doaj   +1 more source

Prediction of topological Dirac semimetal in Ca-based Zintl layered compounds CaM2X2 (M = Zn or Cd; X = N, P, As, Sb, or Bi)

Scientific Reports, 2022
Topological Dirac materials are attracting a lot of attention because they offer exotic physical phenomena. An exhaustive search coupled with first-principles calculations was implemented to investigate 10 Zintl compounds with a chemical formula of ...
Liang-Ying Feng, Rovi Angelo B. Villaos, Aniceto B. Maghirang, Zhi-Quan Huang, Chia-Hsiu Hsu, Hsin Lin, Feng-Chuan Chuang   +6 more
doaj   +1 more source

Superconductivity in layered Zintl phase LiSn2As2

, 2021
We report the superconductivity in the layered Zintl phase LiSn$_2$As$_2$, which is isostructural to NaSn$_2$As$_2$ and has a transition temperature ($T_{\mathrm{c}}$) of 1.6 K. Despite similar $T_{\mathrm{c}}$ and Debye temperatures, substituting of Na with Li considerably increases the upper critical field. Based on a systematically comparation of Sn$
Wang, Junjie, Cui, Xiangru, Wan, Yimin, Ying, Tianping, Li, Shiyan, Guo, Jiangang   +5 more
openaire   +2 more sources

Revealing the Nature of Chemical Bonding in an ALn₂Ag₃Te₅-Type Alkaline-Metal (A) Lanthanide (Ln) Silver Telluride

Inorganics, 2019
Although the electronic structures of several tellurides have been recognized by applying the Zintl-Klemm concept, there are also tellurides whose electronic structures cannot be understood by applications of the aforementioned idea.
Kai C. Göbgen, Kai S. Fries, Fabian C. Gladisch, Richard Dronskowski, Simon Steinberg   +4 more
doaj   +1 more source

Complex Disorder in Type-I Clathrates: Synthesis and Structural Characterization of A₈Ga_xSn_46−x (A = Rb, Cs; 6.9 < x < 7.5)

Crystals, 2020
Exploratory studies in the systems Rb–Ga–Sn and Cs–Ga–Sn yielded the cubic type-I clathrates with refined compositions Rb8GaxSn46−x and Cs8GaxSn46−x (6.9 < x < 7.5).
Sviatoslav A. Baranets, Amanda B. Childs, Hua He, Svilen Bobev   +3 more
doaj   +1 more source

Synthesis, Crystal and Electronic Structure of the New Ternary Compound Ca₃InAs₃

Crystals, 2022
Crystals of a new ternary compound in the Ca-In-As family, Ca3InAs3, have been successfully synthesized via flux growth techniques. This is only the third known compound between the respective elements.
Wanyue Peng, Sviatoslav Baranets, Svilen Bobev   +2 more
doaj   +1 more source

Synthesis and Crystal Structures of the Quaternary Zintl Phases RbNa8Ga3Pn6 (Pn = P, As) and Na10NbGaAs6

Crystals, 2012
The new Zintl compounds RbNa8Ga3Pn6 (Pn = P, As) and Na10NbGaAs6 have been synthesized from the corresponding elements at high temperatures. RbNa8Ga3P6 and RbNa8Ga3As6 crystallize with a novel structure type that features trigonal planar [Ga3P6]9– and ...
Svilen Bobev, Chauntae Tyson, Hua He
doaj   +1 more source

Unusual Electronic and Bonding Properties of the Zintl Phase Ca5Ge3 and Related Compounds. A Theoretical Analysis [PDF]

, 2004
Theoretical reasons for metallic behavior among diverse Zintl phases have generally not been pursued at an advanced level. Here, the electronic structure of Ca5Ge3 (Cr5B3 type), which can be formulated (Ca+2)5(Ge2-6)Ge-4 in oxidation states, has been ...
Corbett, John, Mudring, Anja, Mudring, Anja   +2 more
core   +3 more sources