Results 41 to 50 of about 3,569 (198)

Synthesis, Crystal and Electronic Structures of the Pnictides AE3TrPn3 (AE = Sr, Ba; Tr = Al, Ga; Pn = P, As)

open access: yesCrystals, 2015
The new ternary arsenides AE3TrAs3 (AE = Sr, Ba; Tr = Al, Ga) and their phosphide analogs Sr3GaP3 and Ba3AlP3 have been prepared by reactions of the respective elements at high temperatures.
Stanislav S. Stoyko   +3 more
doaj   +1 more source

Enhanced thermoelectric power factor of p-type Mg3Sb2 via co-doping of Si and Fe

open access: yesTạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kỹ thuật và Công nghệ, 2022
Mg3Sb2-based Zintl compounds are well known as an intrinsic p-type narrow bandgap semiconductor which can be considered as promising candidates because of their non-toxic and inexpensive elements.
Mạc Trung Kiên   +4 more
doaj   +1 more source

Band structure and optical properties of germanium sheet polymers [PDF]

open access: yes, 2001
The band structure of H-terminated Ge sheet polymers is calculated using density-functional theory in the local density approximation and compared to the optical properties of epitaxial polygermyne layers as determined from reflection, photoluminescence,
A. Kleewein   +34 more
core   +1 more source

Size Matters: New Zintl Phase Hydrides of REGa (RE = Y, La, Tm) and RESi (RE = Y, Er, Tm) with Large and Small Cations

open access: yesCrystals, 2019
Many Zintl phases exhibiting a CrB type structure form hydrides. Systematic studies of AeTtHx (Ae = Ca, Sr, Ba; Tt = Si, Ge, Sn), LnTtHx (Ln = La, Nd; Tt = Si, Ge, Sn), and LnGaHx (Ln = Nd, Gd) showed the vast structural diversity of these systems ...
Anton Werwein   +2 more
doaj   +1 more source

Ferromagnetism in Fe-doped Ba6Ge25 Chiral Clathrate

open access: yes, 2003
We have successfully synthesized a Ba6Ge25 clathrate, substituting 3 Fe per formula unit by Ge. This chiral clathrate has Ge sites forming a framework of closed cages and helical tunnel networks.
Carrillo-Cabrera W.   +2 more
core   +1 more source

Ab initio simulations of liquid NaSn alloys: Zintl anions and network formation

open access: yes, 1994
Using the Car-Parrinello technique, ab initio molecular dynamics simulations are performed for liquid NaSn alloys in five different compositions (20, 40, 50, 57 and 80 % sodium).
Alblas B P   +23 more
core   +1 more source

Reorientations in plastic crystal phases of zintl alloys [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 1993
Abstract Quasielastic neutron scattering measurements on the Zintl alloy NaSn show that the high-temperature solid phase discovered by Hume-Rothery is a plastic crystal characterized by rapid rotations of the Sn {4-} 4 Zintl ions. The reorientations are similar to those previously observed in CsPb but have a markedly different wave vector ...
Saboungi, M. L.   +3 more
openaire   +1 more source

Precise Tailoring of Charge Transport Characteristics in Zr and Hf Doped Indium Tin Oxide Thin Film Transistors

open access: yesAdvanced Electronic Materials, EarlyView.
Zirconium, hafnium, and mixed zirconium/hafnium doped indium tin oxide thin films are accessible by atomic layer deposition. The amorphous functional films are about 8 nm thick and show a high interdiffusion of all elements. Their transistor characteristics can be modulated depending on the amount of Zr and Hf oxide phases incorporated in these thin ...
Marie Isabelle Büschges   +5 more
wiley   +1 more source

High-temperature transport properties of complex antimonides with anti-Th3P4 structure [PDF]

open access: yes, 2009
Polycrystalline samples of R4Sb3 (R = La, Ce, Smand Yb) and Yb4-xR¢xSb3 (R¢ = Sm and La) have been quantitatively synthesized by high-temperature reaction. They crystallize in the anti-Th3P4 structure type (I ¯43d, no. 220).
Caillat, Thierry   +4 more
core   +2 more sources

Beyond Imperfect Match: Silicon/Graphite Hybrid Anodes for High‐Energy–Density Lithium‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Silicon/graphite (Si/Gr) hybrid anodes are limited by Si's large volume change and mismatch with Gr. This review offers mechanistic insights into imperfectly matched Si/Gr hybrid anodes, elucidating heterogeneous lithiation behavior and interfacial failure pathways, and thereby informing the design of durable, high‐energy–density lithium‐ion batteries.
Jing Li   +6 more
wiley   +1 more source

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