Investigation of the excitations of plasmons and surface exciton polaritons in monoclinic gadolinium sesquioxide by electron energy-loss spectroscopy and plasmon spectroscopic imaging

Liou, Sz‐Chian; Oleshko, Vladimir P.; Kuo, W. C. H.; Yang, Tan-Ju; Shu, G. J.

doi:10.1039/d2ra00737a

Cited by 3 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To visualize the distribution of iron and oxygen in a single Fe nanochain, the STEM high-angle annular dark-field (HAADF) imaging mode in conjunction with EELS is employed and the acquired results are shown in figure 3. It is known that it is possible to control the electron probe at different positions such as an aloof setup during the STEM-EELS measurements [25]. The EELS spectra of core-shell structures such as those of the investigated Fe NCs are recorded from the core and the edge of structure using the aloof beam, as indicated by the circles in the STEM-HAADF image in figure 3(a).…”

Section: Resultsmentioning

confidence: 99%

Investigation of iron oxide shell and iron core in magnetically-assisted synthetized wire-like nanochains

2023

Self Cite

View full text Add to dashboard Cite

The zerovalent iron (Fe0) nanomaterials tend to be spontaneously oxidized in the presence of oxygen. This leads to the formation of interface composed of iron core and thin iron oxide shell. These structures are frequently observed with transmission electron microscope but, at the same time, it is hard to determine the precise structural and chemical composition of oxide shell. This feature is very important for possible applications of Fe0 nanostructures. Hence, the present work aims to deliver more detailed insights in this topic. The investigations are performed for the iron nanochains prepared in the magnetic-field-induce reduction of FeCl3 by NaBH4. The high-resolution transmission electron microscopy, electron energy loss spectroscopy, and X-ray photoemission spectroscopy confirm that the iron nanochains are covered by very thin oxide layer not exceeding over 3 nm. Moreover, the detailed XPS analyses of O 1s and Fe 2p lines indicate that the iron oxide shell reveals Fe3O4 nature. Moreover, this work demonstrated that some by-products of the reaction containing boron are presented in the sample even after a removal of the thin iron oxide shell by Ar+ treatment.

show abstract

Section: Resultsmentioning

confidence: 99%

Investigation of iron oxide shell and iron core in magnetically-assisted synthetized wire-like nanochains

2023

Self Cite

View full text Add to dashboard Cite

show abstract

Quantum geometric spin frustration of antiferromagnetic CuFeO2 enables photocatalytic applications

Huang,

Liou,

Kao

et al. 2023

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Electronic excitations in monoclinic hafnia as studied by spatially and momentum-resolved electron energy-loss spectroscopy and ab initio density functional theory calculations

Liou

Shu

Oleshko

et al. 2023

Phys. Rev. Materials

View full text Add to dashboard Cite

Investigation of the excitations of plasmons and surface exciton polaritons in monoclinic gadolinium sesquioxide by electron energy-loss spectroscopy and plasmon spectroscopic imaging

Abstract: The electronic excitations in m-Gd2O3 were systematically studied by low-loss EELS in scanning transmission electron microscopy (STEM) mode and electron diffraction mode to gain both the spatial and momentum (q) resolutions.

Cited by 3 publications

References 33 publications

Investigation of iron oxide shell and iron core in magnetically-assisted synthetized wire-like nanochains

Investigation of iron oxide shell and iron core in magnetically-assisted synthetized wire-like nanochains

Quantum geometric spin frustration of antiferromagnetic CuFeO2 enables photocatalytic applications

Electronic excitations in monoclinic hafnia as studied by spatially and momentum-resolved electron energy-loss spectroscopy and ab initio density functional theory calculations

Contact Info

Product

Resources

About