scholarly journals Charge transfer across transition-metal oxide interfaces: Emergent conductance and electronic structure

2014 ◽  
Vol 90 (24) ◽  
Author(s):  
Hanghui Chen ◽  
Hyowon Park ◽  
Andrew J. Millis ◽  
Chris A. Marianetti
Keyword(s):  
Electronic Structure ◽  
Charge Transfer ◽  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Oxide Interfaces

Electronic structure at transition metal phthalocyanine-transition metal oxide interfaces: Cobalt phthalocyanine on epitaxial MnO films

2015 ◽  
Vol 142 (10) ◽  
pp. 101918 ◽  
Author(s):  
Mathias Glaser ◽  
Heiko Peisert ◽  
Hilmar Adler ◽  
Umut Aygül ◽  
Milutin Ivanovic ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Cobalt Phthalocyanine ◽  
Metal Phthalocyanine ◽  
Oxide Interfaces

High-performance electrochromic films with fast switching times using transparent/conductive nanoparticle-modulated charge transfer

Nanoscale ◽  
2019 ◽  
Vol 11 (38) ◽  
pp. 17815-17830 ◽  
Author(s):  
Junsang Yun ◽  
Yongkwon Song ◽  
Ikjun Cho ◽  
Yongmin Ko ◽  
Cheong Hoon Kwon ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Transition Metal ◽  
Metal Oxide ◽  
High Performance ◽  
Transition Metal Oxide ◽  
Fast Switching ◽  
Switching Times

Facile charge transfer-induced structural/interfacial designs for high-performance transition metal oxide-based electrochromic films.

scholarly journals Electronic structure variations of polar and nonpolar ZnO lattices with nitrogen-ion bombardment using synchrotron-based in situ photoemission and X-ray absorption spectroscopy

2020 ◽  
Vol 27 (1) ◽  
pp. 83-89
Author(s):  
Yuyang Huang ◽  
Yaping Li ◽  
Meng Wu ◽  
Hui-Qiong Wang ◽  
Xuebin Yuan ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Metal Oxide ◽  
Photoelectron Spectroscopy ◽  
Transition Metal Oxide ◽  
Material Design ◽  
Surface Polarity ◽  
X Ray ◽  
Nitrogen Ion ◽  
X Ray Absorption

Surface polarity with different crystal orientations has been demonstrated as a crucial parameter in determining the physical properties and device applications in many transition metal oxide and semiconductor compound systems. The influences of surface polarity on electronic structures in nitrogen-incorporated ZnO lattices have been investigated in the present work. The successful doping of nitrogen atoms in ZnO lattices is suggested by the existence of N-related chemical bonds obtained from X-ray photoelectron spectroscopy analysis where a pronounced N–Zn peak intensity has been observed in the (000\bar 1)-terminated polar ZnO compound compared with the (10\bar 10)-terminated nonpolar ZnO compound. An energy shift of the valence band maximum towards the Fermi level has been resolved for both polar and nonpolar ZnO lattices, whereas a charge redistribution of the O 2p hybridized states is only resolved for o-plane ZnO with a polar surface. Angular-dependent X-ray absorption analyses at the O K-edge reveal enhanced surface-state contributions and asymmetric O 2p orbital occupations in the (000\bar 1)-terminated o-plane ZnO compound. The results shed light on the efficient nitrogen doping in ZnO lattices with polar surfaces. The comprehensive electronic structure investigations of correlations between impurity doping and surface polarity in ZnO lattices may also offer guidance for the material design in other transition metal oxide and semiconductor systems.

Optimisation of Adhesion at Transition Metal-Oxide Interfaces by Processing at Well-Chosen Oxygen Activity

1999 ◽  
Vol 586 ◽  
Author(s):  
M. Backhaus-Ricoult
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Interfacial Energy ◽  
Transition Metal Oxide ◽  
Adhesion Energy ◽  
Oxygen Activity ◽  
Oxide Interface ◽  
Stability Range ◽  
Oxide Interfaces ◽  
Adsorption Energies

ABSTRACTTransition metal-oxide interfaces suffer within their thermodynamic stability range Gibbs' adsorption and show important changes in chemical composition with oxygen activity. As a consequence, specific free interfacial energy and adhesion energy also vary with oxygen activity. Adhesion at a given non-reactive transition metal-oxide interface can then be optimised by establishing the proper oxygen activity during processing or by a post-treatment at the interface.In the present work, the approach of Gibbs' adsorption is extended to crystalline, anisotropic (special) transition metal-oxide interfaces. It is demonstrated that interfacial energy varies with oxygen activity. The variation in energy is studied for different adsorption energies, temperatures and interfacial planes.

ChemInform Abstract: Transition Metal Oxide Chemistry: Electronic Structure Study of WO3, ReO3, and NaWO3.

ChemInform ◽  
2010 ◽  
Vol 28 (31) ◽  
pp. no-no ◽  
Author(s):  
F. CORA ◽  
M. G. STACHIOTTI ◽  
C. R. A. CATLOW ◽  
C. O. RODRIGUEZ
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Structure Study

Proposal of Metastable Spin-Polarized He as a Probe of Antiferromagnetic Transition Metal Oxide Surfaces

1990 ◽  
Vol 208 ◽  
Author(s):  
Anna Swan ◽  
W. Franzen ◽  
M. El-Batanouny ◽  
K. M. Martini
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Metal Oxide ◽  
Survival Probability ◽  
Transition Metal Oxide ◽  
Resonance Ionization ◽  
Oxide Surface ◽  
Difference Spectra ◽  
Magnetic Sublattice ◽  
Spin Polarized

ABSTRACTWe suggest a new application for elastic scattering of a metastable spin-polarized atomic helium beam at thermal energy. We demonstrate how angle-resolved measurements of the Bragg peaks of scattered surviving metastable atoms can give information about the spin-ordering of an antiferromagnetic (AF) transition metal oxide surface. In this paper, we discuss the feasibility of such measurements for NiO(100) and MnO(100), based on available information about their electronic structure and the properties of spin-polarized metastable helium. On impact with a surface, the survival probability of metastables is generally very low (<10-2). There are two possible decay mechanisms for metastables, a resonance ionization followed by auger neutralization, or an auger de-excitation process. For AF surfaces which fulfill certain requirements on their electronic structure, spin-selection rules will inhibit the decay of the metastable atoms from a favourably aligned magnetic sublattice. The survival probability will then be dramatically enhanced from the chosen sublattice, and the coherently scattered surviving metastables will reflect the periodicity of that magnetic sublattice. In contrast to other methods currently applied to magnetic systems, this method does not rely on difference spectra. Consequently, reversal of spinorientation is not necessary for the observation of magnetic ordering.

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