The transformation of CsPbCl3 at 47°C is associated with a change from the antiferroelectric phase to the paraelectric phase.
Negative differential resistance (NDR) has been observed for the first time above room temperature in gallium nitride nanocrystals synthesized by a simple chemical route. Current-voltage characteristics have been used to investigate this effect through a metal-semiconductor-metal (M-S-M) configuration on SiO2. The NDR effect is reversible and reproducible through many cycles. The threshold voltage is approximately 7 V above room temperature.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to Compositional Tuning of Electrical and Optical Properties of PLD-Generated Thin Films of 2D Borocarbonitrides (BN)1–x(C)xRohit AttriRohit AttriMore by Rohit Attri, M. B. SreedharaM. B. SreedharaMore by M. B. Sreedharahttp://orcid.org/0000-0003-4925-4346, and C. N. R. RaoC. N. R. RaoMore by C. N. R. Raohttp://orcid.org/0000-0003-4088-0615Cite this: ACS Appl. Electron. Mater. 2019, 1, 7, 1336Publication Date (Web):June 21, 2019Publication History Published online21 June 2019Published inissue 23 July 2019https://pubs.acs.org/doi/10.1021/acsaelm.9b00335https://doi.org/10.1021/acsaelm.9b00335correctionACS PublicationsCopyright © 2019 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views542Altmetric-Citations1LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail PDF (201 KB) Get e-Alertsclose Get e-Alerts
While NdNiO3-δ prepared ordinarily is highly oxygen-deficient and exhibits a metal-insulator transition at low temperature, it has been possible to prepare nearly metallic NdNiO3-δ (δ = 0.05) by electrochemical oxidation. On progressive electrochemical oxidation, orthorhombic, insulating LaMnO3 transforms to a rhombohedral and then to a cubic structure. The last two phases are ferromagnetic and exhibit metal-insulator transitions.
It is with great pleasure that I write this editorial for the special issue of Chemistry–An Asian Journal, in honour of the 60th birthday of Prof. Chunli Bai. Prof. Bai’s 60th birthday is truly a great occasion, for he is a leader of science in an important country with great heritage.1 Picture of C.N.R. Rao Prof. Chunli Bai received both his Master’s and PhD degrees from the Institute of Chemistry of the Chinese Academy of Sciences in Beijing. He carried out post-doctoral work in the area of Physical Chemistry in the United States. Ever since his return to China, he has been associated with the Institute of Chemistry, Chinese Academy of Sciences. He has been a professor at this Institute for many years and has contributed to the growth of the Institute in many ways by leading research in molecular and materials chemistry. Professor Bai’s major scientific achievements include the development of new techniques and methodologies for use in molecular and materials sciences. He is one of the pioneers in the area of scanning probe microscopy and nanoscience. His leadership has enabled the Institute of Chemistry to become well-known in nanoscience and related areas. He has published outstanding research papers, reviews, and books. His research publications cover a wide range of topics in molecular and materials chemistry and have characteristically been of high quality. The books he has written cover a number of topics including frontiers of molecular science, scanning tunneling microscopy, molecular wires and switches, nanoscience and technology, and so on. These important contributions have established Prof. Bai as a leading figure in the global chemistry community. He has been a speaker at many international conferences and is highly respected. To say that his leadership has made Chinese chemistry and nanoscience prominent in the world is not an exaggeration. In the last few years, he was head of the Graduate University of the Chinese Academy of Sciences, which is contributing significantly to the growth of science in China. Besides being the Director of the National Centre for Science and Technology, he became Vice-President of the Chinese Academy of Sciences some years ago, and then became its President in 2011. He is a member of a number of foreign academies including the US National Academy of Sciences, the Russian Academy of Sciences, the Danish Academy of Sciences, the German National Science Academy, and the Indian Academy of Sciences. He is also an Honorary Fellow of the Royal Society of Chemistry. He has received honorary doctorates from a number of universities from all over the world. In recent years, he has been closely associated with the work of Academy of Sciences for the Developing World (TWAS), which is now called the World Academy of Sciences. He was Vice-President of this Academy for some time, and became President earlier this year. He will certainly continue to make valuable contributions to the development of science in the third world. Prof. Chunli Bai has received a number of awards, prizes, and recognitions from China and elsewhere for his contributions to chemical research and science as a whole. He is a board member or editor of many important professional journals. As an ambassador of Chinese science, he now leads the Chinese Academy to take China to greater heights in science. In this process, he has also emerged as an important figure in determining the future growth of science in the world at large. It has been a great pleasure to write this guest editorial dedicated to celebrate Prof. Chunli Bai’s 60th birthday. C.N.R. Rao1
Infrared absorption spectra of rare earth manganates of the type La0.7 A 0.3MnO3 (A=Pb, Sr, Ca) show that the compositions which are metallic at room temperature do not exhibit phonon bands, while the insulating compositions show sharp bands. La0.7Ca0.3MnO3 shows some changes in the phonon frequencies across the insulator–metal transition, but more importantly, the temperature variation of the relative band intensities parallels that of the electric resistivity. It appears that infrared absorption in these materials occurs when the resistivity is higher than Mott's maximum metallic resistivity. Infrared absorption spectra of Nd0.5Ca0.5MnO3, Y0.5Ca0.5MnO3, and Nd0.5Sr0.5MnO3 have been investigated through their charge-ordering transition temperatures. The band frequencies increase across the charge-ordering transition accompanied by a significant increase in the band intensities. The stretching and bending bands of the MnO6 octahedra show splittings in the charge-ordered manganates consistent with the occurrence of octahedral distortion. Some systematics in band frequencies are found with the average radius of A-site cations in Ln 0.5 A 0.5MnO3.
No abstract is provided for this article.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
