Atomic Structure and Electronic Properties of Intermetallic CaBi2 Thin Films

2020 ◽  
Vol 11 (11) ◽  
pp. 4385-4391
Author(s):  
Yanfeng Lyu ◽  
Hanming Yuan ◽  
Samira Daneshmandi ◽  
Shuyuan Huyan ◽  
Ching-Wu Chu
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Atomic Structure

Mechanistic insights on the electronic properties and electronic/atomic structure aspects in orthorhombic SrVO3 thin films: XANES–EXAFS study

2017 ◽  
Vol 19 (9) ◽  
pp. 6397-6405 ◽  
Author(s):  
Aditya Sharma ◽  
Mayora Varshney ◽  
Weon Cheol Lim ◽  
Hyun-Joon Shin ◽  
Jitendra Pal Singh ◽  
...  
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Atomic Structure ◽  
Exafs Study

Distortion in the V–O6 octahedra is observed in SrVO3 thin films and leads to larder separation between bonding and anti-bonding d‖ orbitals.

scholarly journals Atomic structure and electronic properties of planar defects in SrFeO3−δ thin films

2020 ◽  
Vol 4 (7) ◽  
Author(s):  
Marta D. Rossell ◽  
Piyush Agrawal ◽  
Marco Campanini ◽  
Daniele Passerone ◽  
Rolf Erni
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Atomic Structure ◽  
Planar Defects

scholarly journals Design of Promising Heptacoordinated Organotin (IV) Complexes-PEDOT: PSS-Based Composite for New-Generation Optoelectronic Devices Applications

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1023
Author(s):  
María Elena Sánchez-Vergara ◽  
Leon Hamui ◽  
Elizabeth Gómez ◽  
Guillermo M. Chans ◽  
José Miguel Galván-Hidalgo
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Optoelectronic Devices ◽  
Density Variation ◽  
Structural Modifications ◽  
Mixed Ligands ◽  
Vis Spectroscopy ◽  
Group A ◽  
Poly Styrene Sulfonate ◽  
New Generation

The synthesis of four mononuclear heptacoordinated organotin (IV) complexes of mixed ligands derived from tridentated Schiff bases and pyrazinecarboxylic acid is reported. This organotin (IV) complexes were prepared by using a multicomponent reaction, the reaction proceeds in moderate to good yields (64% to 82%). The complexes were characterized by UV-vis spectroscopy, IR spectroscopy, mass spectrometry, 1H, 13C, and 119Sn nuclear magnetic resonance (NMR) and elemental analysis. The spectroscopic analysis revealed that the tin atom is seven-coordinate in solution and that the carboxyl group acts as monodentate ligand. To determine the effect of the substituent on the optoelectronic properties of the organotin (IV) complexes, thin films were deposited, and the optical bandgap was obtained. A bandgap between 1.88 and 1.98 eV for the pellets and between 1.23 and 1.40 eV for the thin films was obtained. Later, different types of optoelectronic devices with architecture “contacts up/base down” were manufactured and analyzed to compare their electrical behavior. The design was intended to generate a composite based on the synthetized heptacoordinated organotin (IV) complexes embedded on the poly(3,4-ethylenedyoxithiophene)-poly(styrene sulfonate) (PEDOT:PSS). A Schottky curve at low voltages (<1.5 mV) and a current density variation of as much as ~3 × 10−5 A/cm2 at ~1.1 mV was observed. A generated photocurrent was of approximately 10−7 A and a photoconductivity between 4 × 10−9 and 7 × 10−9 S/cm for all the manufactured structures. The structural modifications on organotin (IV) complexes were focused on the electronic nature of the substituents and their ability to contribute to the electronic delocalization via the π system. The presence of the methyl group, a modest electron donor, or the non-substitution on the aromatic ring, has a reduced effect on the electronic properties of the molecule. However, a strong effect in the electronic properties of the material can be inferred from the presence of electron-withdrawing substituents like chlorine, able to reduce the gap energies.

Atomic structure of [0001]-tilt grain boundaries in ZnO:  A high-resolution TEM study of fiber-textured thin films

2004 ◽  
Vol 70 (12) ◽  
Author(s):  
Fumiyasu Oba ◽  
Hiromichi Ohta ◽  
Yukio Sato ◽  
Hideo Hosono ◽  
Takahisa Yamamoto ◽  
...  
Keyword(s):  
Thin Films ◽  
High Resolution ◽  
Grain Boundaries ◽  
Atomic Structure ◽  
High Resolution Tem

Electronic properties of Cr1−xAlxN thin films deposited by reactive magnetron sputtering

2002 ◽  
Vol 420-421 ◽  
pp. 312-317 ◽  
Author(s):  
R Sanjinés ◽  
O Banakh ◽  
C Rojas ◽  
P.E Schmid ◽  
F Lévy
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Electronic Properties ◽  
Reactive Magnetron Sputtering ◽  
Reactive Magnetron

EXAFS spectroscopy study of the atomic structure of ZnS nanocomposite thin films

2011 ◽  
Vol 52 (S1) ◽  
pp. 181-185 ◽  
Author(s):  
R. G. Valeev ◽  
A. N. Beltukov ◽  
F. Z. Gilmutdinov ◽  
É. A. Romanov ◽  
A. N. Deev ◽  
...  
Keyword(s):  
Thin Films ◽  
Atomic Structure ◽  
Exafs Spectroscopy ◽  
Spectroscopy Study ◽  
Nanocomposite Thin Films

scholarly journals Magnetic and Electronic Properties of Weyl Semimetal Co2MnGa Thin Films

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 251
Author(s):  
Peter Swekis ◽  
Aleksandr S. Sukhanov ◽  
Yi-Cheng Chen ◽  
Andrei Gloskovskii ◽  
Gerhard H. Fecher ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Electronic Properties ◽  
Photoelectron Spectroscopy ◽  
Magnetic Moments ◽  
Field Orientation ◽  
Weyl Semimetal ◽  
Uniform Magnetization ◽  
Experimental Findings ◽  
High Degree

Magnetic Weyl semimetals are newly discovered quantum materials with the potential for use in spintronic applications. Of particular interest is the cubic Heusler compound Co2MnGa due to its inherent magnetic and topological properties. This work presents the structural, magnetic and electronic properties of magnetron co-sputtered Co2MnGa thin films, with thicknesses ranging from 10 to 80 nm. Polarized neutron reflectometry confirmed a uniform magnetization through the films. Hard x-ray photoelectron spectroscopy revealed a high degree of spin polarization and localized (itinerant) character of the Mn d (Co d) valence electrons and accompanying magnetic moments. Further, broadband and field orientation-dependent ferromagnetic resonance measurements indicated a relation between the thickness-dependent structural and magnetic properties. The increase of the tensile strain-induced tetragonal distortion in the thinner films was reflected in an increase of the cubic anisotropy term and a decrease of the perpendicular uniaxial term. The lattice distortion led to a reduction of the Gilbert damping parameter and the thickness-dependent film quality affected the inhomogeneous linewidth broadening. These experimental findings will enrich the understanding of the electronic and magnetic properties of magnetic Weyl semimetal thin films.

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