Electron-doped TiNCl is a superconductor, for which exotic mechanisms of the superconductivity have been discussed. However, difficulty in preparing large single-phase samples has prevented the direct observation of its electronic structure and how that changes with electron doping. In this study, micro-photoemission spectroscopy (µ-PES) was used to reveal the electronic structures of TiNCl and Na-intercalated TiNCl (Na-TiNCl). Comparison of Ti 2p core-level spectra shows the enhancement of a spectral feature in Na-TiNCl that suggests an increase in its metallic character. This indicates the introduction of electron carriers to the TiNCl layers. Although the overall valence band electronic structure of parent TiNCl could be reproduced by first-principle calculations, that of Na-TiNCl showed a marked deviation from the rigid band model near the Fermi level (EF). The spectral shape observed near EF of Na-TiNCl was found to be similar to a result in early transition metal oxides that has been attributed to the effect of strong electron correlation. The present study also demonstrated the usefulness of µ-PES to obtain reliable electronic structure data for samples that are difficult to make at large sizes.
We have performed soft x-ray spectroscopy in order to study the photoirradiation time dependence of the valence band structure and chemical states of layered transition metal nitride chloride TiNCl. Under the soft x-ray irradiation, the intensities of the states near the Fermi level (E
F) and the Ti3+ component increased, while the Cl 2p intensity decreased. Ti 2p–3d resonance photoemission spectroscopy confirmed a distinctive Fermi edge with Ti 3d character. These results indicate the photo-induced metallization originates from deintercalation due to Cl desorption, and thus provide a new carrier doping method that controls the conducting properties of TiNCl.
Wataru HOSODA- ーーーー * 1 Tomo SAWANO-ーーー * 1 Hideaki SHIMURA- ーーー * 2 The purpose of this paper is to report on the result of "Floating Cafe" pilot project that community board had practiced, and to analyze the sufficient conditions for practice of "Floating Cafe". The conclusions are; 1) "Floating Cafe" attracted wide range of customers, and gave positive consciousness for them. "Floating Cafe" will be community business.2) The sufficient conditions are; a management agreement which specify a community board can use a floating pier is concluded; a community board include organizations which have retail associations, cruise companies, and experts like universities; members of a community board have collaboration each other. The purpose of this paper is to report on the result of "Floating Cafe" pilot project that community board had practiced, and to analyze the sufficient conditions for practice of "Floating Cafe" The conclusions are; 1) "Floating Cafe" attracted wide range of customers, and gave positive consciousness for them. "Floating Cafe" will be community business.2) The sufficient conditions are; a management agreement which specify a community board can use a floating pier is concluded; a community board include organizations which have retail associations, cruise companies, and experts like universities; members of a community board have collaboration each other.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.