Academic literature on the topic 'Oxychalcogenide system'

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Journal articles on the topic "Oxychalcogenide system"

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Barreteau, C., L. Pan, E. Amzallag, L. D. Zhao, D. Bérardan, and N. Dragoe. "Layered oxychalcogenide in the Bi–Cu–O–Se system as good thermoelectric materials." Semiconductor Science and Technology 29, no. 6 (2014): 064001. http://dx.doi.org/10.1088/0268-1242/29/6/064001.

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BARRETEAU, CELINE, LIN PAN, YAN-LING PEI, LI-DONG ZHAO, DAVID BERARDAN, and NITA DRAGOE. "OXYCHALCOGENIDES AS NEW EFFICIENT p-TYPE THERMOELECTRIC MATERIALS." Functional Materials Letters 06, no. 05 (2013): 1340007. http://dx.doi.org/10.1142/s1793604713400079.

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During the past two years, we have underlined the great potential of p-type oxychalcogenides, with parent compound BiCuSeO , for thermoelectric applications in the medium temperature range (400–650°C). These materials, which do not contain lead and are less expensive than Te containing materials, exhibit large thermoelectric figure of merit, exceeding 1 in a wide temperature range, mainly due to an intrinsically very low thermal conductivity. This paper summarizes the main chemical and crystallographic features of this system, as well as the thermoelectric properties. It also gives new directi
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Sokol, Ella V., Svetlana N. Kokh, Yurii V. Seryotkin, et al. "Ultrahigh-Temperature Sphalerite from Zn-Cd-Se-Rich Combustion Metamorphic Marbles, Daba Complex, Central Jordan: Paragenesis, Chemistry, and Structure." Minerals 10, no. 9 (2020): 822. http://dx.doi.org/10.3390/min10090822.

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Minerals of the Zn-Cd-S-Se system that formed by moderately reduced ~800–850 °C combustion metamorphic (CM) alteration of marly sediments were found in marbles from central Jordan. Their precursor sediments contain Se- and Ni-enriched authigenic pyrite and ZnS modifications with high Cd enrichment (up to ~10 wt%) and elevated concentrations of Cu, Sb, Ag, Mo, and Pb. The marbles are composed of calcite, carbonate-fluorapatite, spurrite, and brownmillerite and characterized by high P, Zn, Cd, U, and elevated Se, Ni, V, and Mo contents. Main accessories are either Zn-bearing oxides or sphalerite
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Lin, Ling-Fang, Yang Zhang, Gonzalo Alvarez, et al. "Stability of the interorbital-hopping mechanism for ferromagnetism in multi-orbital Hubbard models." Communications Physics 6, no. 1 (2023). http://dx.doi.org/10.1038/s42005-023-01314-w.

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AbstractThe emergence of insulating ferromagnetic phase in iron oxychalcogenide chain system has been recently argued to be originated by interorbital hopping mechanism. However, the practical conditions for the stability of such mechanism still prevents the observation of ferromagnetic in many materials. Here, we study the stability range of such ferromagnetic phase under modifications in the crystal fields and electronic correlation strength, constructing a theoretical phase diagram. We find a rich emergence of phases, including a ferromagnetic Mott insulator, a ferromagnetic orbital-selecti
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Chen, Liang, Quan Cai, Yi Liu, and Xuehui Xie. "Boosting the Charge Storage Capability of Bi2TeO5 Cathode Using Iodide Ions in Aqueous Zinc‐Based Batteries System." Small, October 21, 2024. http://dx.doi.org/10.1002/smll.202408132.

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AbstractAs insertion‐type cathode materials of aqueous Zn‐based batteries (ABs), bismuth chalcogenides/oxychalcogenides exhibits relatively limited capacities in ZnSO4 baseline electrolyte. This work finds that Bi2TeO5 (BTO) cathode with pre‐added I− electrolyte additive can simultaneously achieve conversion and insertion chemistries, which enables aqueous BTO‐Zn batteries to deliver an extraordinary electrochemical performance. As shown in the experiment results, the BTO cathode showcases an ultrahigh specific capacity of 534.9 mA h g−1 at 0.5 A g−1, excellent rate capability (237.3 mA h g−1
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Dissertations / Theses on the topic "Oxychalcogenide system"

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Mukherjee, Madhubanti. "Overcoming Challenges Associated with Designing of Thermoelectric Materials: DFT and Machine Learning Approaches." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5160.

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Search for clean and renewable energy resources has driven recent interest in designing thermoelectric materials that convert the waste heat to useful electricity. High performance thermoelectric materials require excellent electronic transport and favorable thermal transport, simultaneously. Given the interdependence of various transport parameters, it is daunting to achieve desirable performance. We attempt to address some of these challenges using density functional theory in combination with machine-learning based approaches. We first report the decoupling of Seebeck coefficient and electr
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Conference papers on the topic "Oxychalcogenide system"

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Horigane, Kazumasa, Kenji Kawashima, Sungdae Ji, Masaaki Yoshikawa, Despina Louca, and Jun Akimitsu. "Local Crystal Structure of Mott-Insulating Iron Oxychalcogenides La2O2Fe2OSe2." In Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2013). Journal of the Physical Society of Japan, 2014. http://dx.doi.org/10.7566/jpscp.3.015039.

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