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Frédéric Lamaty - One of the best experts on this subject based on the ideXlab platform.
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Correction: A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity
RSC Advances, 2016Co-Authors: Alexey N. Bilyachenko, Mikhail M. Levitsky, Alexey I. Yalymov, Alexander A. Korlyukov, Anna V. Vologzhanina, Yuriy N. Kozlov, Lidia S. Shul'pina, Dmytro S. Nesterov, Armando J. L. Pombeiro, Frédéric LamatyAbstract:Correction for ‘A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity’ by Alexey N. Bilyachenko et al., RSC Adv., 2016, 6, 48165–48180.
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A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity
RSC Advances, 2016Co-Authors: Alexey N. Bilyachenko, Mikhail M. Levitsky, Alexey I. Yalymov, Alexander A. Korlyukov, Anna V. Vologzhanina, Yuriy N. Kozlov, Lidia S. Shul'pina, Dmytro S. Nesterov, Armando J. L. Pombeiro, Frédéric LamatyAbstract:The exotic “Asian Lantern” heterometallic cage silsesquioxane [(PhSiO1.5)20(FeO1.5)6(NaO0.5)8(n-BuOH)9.6(C7H8)] (I) was obtained and characterized by X-ray diffraction, EXAFS, topological analyses and DFT calculation. The magnetic property investigations revealed that it shows an unusual Spin glass-like behavior induced by a particular triangular arrangement of Fe(III) ions. Cyclohexane and other alkanes as well as benzene can be oxidized to the corresponding alkyl hydroperoxides and phenol, respectively, by hydrogen peroxide in air in the presence of catalytic amounts of complex I and nitric acid. The I-catalyzed reaction of cyclohexane, c-C6H12, with H216O2 in an atmosphere of 18O2 gave a mixture of labeled and non-labeled cyclohexyl hydroperoxides, c-C6H11–16O–16OH and c-C6H11–18O–18OH, respectively, with an 18O incorporation level of ca. 12%. Compound I also revealed high efficiency in the oxidative amidation of alcohols into amides: in the presence of complex I, only 500 ppm of iron was allowed to reach TON and TOF values of 1660 and 92 h−1.
Bernard Servet - One of the best experts on this subject based on the ideXlab platform.
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Band-Structure Spin-Filtering in Vertical Spin Valves Based on Chemical Vapor Deposited WS2
ACS nano, 2019Co-Authors: Victor Zatko, Marta Galbiati, Simon M-m Dubois, Mauro Och, Pawel Palczynski, Cecilia Mattevi, Pierre Brus, O. Bezencenet, Marie-blandine Martin, Bernard ServetAbstract:We report on Spin transport in WS2-based 2D-magnetic tunnel junctions (2D-MTJs), unveiling a band Structure Spin filtering effect specific to the transition metal dichalcogenides (TMDCs) family. WS...
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Band-Structure Spin-Filtering in Vertical Spin Valves Based on Chemical Vapor Deposited WS2
ACS Nano, 2019Co-Authors: Victor Zatko, Marta Galbiati, Simon M-m Dubois, Mauro Och, Pawel Palczynski, Cecilia Mattevi, Pierre Brus, O. Bezencenet, Marie-blandine Martin, Bernard ServetAbstract:We report on Spin transport in WS2-based 2D-magnetic tunnel junctions (2D-MTJs), unveiling a band Structure Spin filtering effect specific to the transition metal dichalcogenides (TMDCs) family. WS2 mono-, bi-, and trilayers are derived by a chemical vapor deposition process and further characterized by Raman spectroscopy, atomic force microscopy (AFM), and photoluminescence spec-troscopy. The WS2 layers are then integrated in complete Co/Al2O3 /WS2/Co MTJ hybrid Spin-valve Structures. We make use of a tunnel Co/Al2O3 Spin analyzer to probe the extracted Spin-polarized current from the WS2/Co interface and its evolution as a function of WS2 layer thicknesses. For monolayer WS2, our technological approach enables the extraction of the largest Spin signal reported for a TMDC-based Spin valve, corresponding to a Spin polarization of PCo/WS2 = 12%. Interestingly, for bi-and trilayer WS2, the Spin signal is reversed, which indicates a switch in the mechanism of interfacial Spin extraction. With the support of ab initio calculations, we propose a model to address the experimentally measured inversion of the Spin polarization based on the change in the WS2 band Structure while going from monolayer (direct bandgap) to bilayer (indirect bandgap). These experiments illustrate the rich potential of the families of semiconducting 2D materials for the control of Spin currents in 2D-MTJs.
Alexey N. Bilyachenko - One of the best experts on this subject based on the ideXlab platform.
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Correction: A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity
RSC Advances, 2016Co-Authors: Alexey N. Bilyachenko, Mikhail M. Levitsky, Alexey I. Yalymov, Alexander A. Korlyukov, Anna V. Vologzhanina, Yuriy N. Kozlov, Lidia S. Shul'pina, Dmytro S. Nesterov, Armando J. L. Pombeiro, Frédéric LamatyAbstract:Correction for ‘A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity’ by Alexey N. Bilyachenko et al., RSC Adv., 2016, 6, 48165–48180.
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A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity
RSC Advances, 2016Co-Authors: Alexey N. Bilyachenko, Mikhail M. Levitsky, Alexey I. Yalymov, Alexander A. Korlyukov, Anna V. Vologzhanina, Yuriy N. Kozlov, Lidia S. Shul'pina, Dmytro S. Nesterov, Armando J. L. Pombeiro, Frédéric LamatyAbstract:The exotic “Asian Lantern” heterometallic cage silsesquioxane [(PhSiO1.5)20(FeO1.5)6(NaO0.5)8(n-BuOH)9.6(C7H8)] (I) was obtained and characterized by X-ray diffraction, EXAFS, topological analyses and DFT calculation. The magnetic property investigations revealed that it shows an unusual Spin glass-like behavior induced by a particular triangular arrangement of Fe(III) ions. Cyclohexane and other alkanes as well as benzene can be oxidized to the corresponding alkyl hydroperoxides and phenol, respectively, by hydrogen peroxide in air in the presence of catalytic amounts of complex I and nitric acid. The I-catalyzed reaction of cyclohexane, c-C6H12, with H216O2 in an atmosphere of 18O2 gave a mixture of labeled and non-labeled cyclohexyl hydroperoxides, c-C6H11–16O–16OH and c-C6H11–18O–18OH, respectively, with an 18O incorporation level of ca. 12%. Compound I also revealed high efficiency in the oxidative amidation of alcohols into amides: in the presence of complex I, only 500 ppm of iron was allowed to reach TON and TOF values of 1660 and 92 h−1.
Victor Zatko - One of the best experts on this subject based on the ideXlab platform.
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Band-Structure Spin-Filtering in Vertical Spin Valves Based on Chemical Vapor Deposited WS2
ACS nano, 2019Co-Authors: Victor Zatko, Marta Galbiati, Simon M-m Dubois, Mauro Och, Pawel Palczynski, Cecilia Mattevi, Pierre Brus, O. Bezencenet, Marie-blandine Martin, Bernard ServetAbstract:We report on Spin transport in WS2-based 2D-magnetic tunnel junctions (2D-MTJs), unveiling a band Structure Spin filtering effect specific to the transition metal dichalcogenides (TMDCs) family. WS...
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Band-Structure Spin-Filtering in Vertical Spin Valves Based on Chemical Vapor Deposited WS2
ACS Nano, 2019Co-Authors: Victor Zatko, Marta Galbiati, Simon M-m Dubois, Mauro Och, Pawel Palczynski, Cecilia Mattevi, Pierre Brus, O. Bezencenet, Marie-blandine Martin, Bernard ServetAbstract:We report on Spin transport in WS2-based 2D-magnetic tunnel junctions (2D-MTJs), unveiling a band Structure Spin filtering effect specific to the transition metal dichalcogenides (TMDCs) family. WS2 mono-, bi-, and trilayers are derived by a chemical vapor deposition process and further characterized by Raman spectroscopy, atomic force microscopy (AFM), and photoluminescence spec-troscopy. The WS2 layers are then integrated in complete Co/Al2O3 /WS2/Co MTJ hybrid Spin-valve Structures. We make use of a tunnel Co/Al2O3 Spin analyzer to probe the extracted Spin-polarized current from the WS2/Co interface and its evolution as a function of WS2 layer thicknesses. For monolayer WS2, our technological approach enables the extraction of the largest Spin signal reported for a TMDC-based Spin valve, corresponding to a Spin polarization of PCo/WS2 = 12%. Interestingly, for bi-and trilayer WS2, the Spin signal is reversed, which indicates a switch in the mechanism of interfacial Spin extraction. With the support of ab initio calculations, we propose a model to address the experimentally measured inversion of the Spin polarization based on the change in the WS2 band Structure while going from monolayer (direct bandgap) to bilayer (indirect bandgap). These experiments illustrate the rich potential of the families of semiconducting 2D materials for the control of Spin currents in 2D-MTJs.
Dmytro S. Nesterov - One of the best experts on this subject based on the ideXlab platform.
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Correction: A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity
RSC Advances, 2016Co-Authors: Alexey N. Bilyachenko, Mikhail M. Levitsky, Alexey I. Yalymov, Alexander A. Korlyukov, Anna V. Vologzhanina, Yuriy N. Kozlov, Lidia S. Shul'pina, Dmytro S. Nesterov, Armando J. L. Pombeiro, Frédéric LamatyAbstract:Correction for ‘A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity’ by Alexey N. Bilyachenko et al., RSC Adv., 2016, 6, 48165–48180.
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A heterometallic (Fe6Na8) cage-like silsesquioxane: synthesis, Structure, Spin glass behavior and high catalytic activity
RSC Advances, 2016Co-Authors: Alexey N. Bilyachenko, Mikhail M. Levitsky, Alexey I. Yalymov, Alexander A. Korlyukov, Anna V. Vologzhanina, Yuriy N. Kozlov, Lidia S. Shul'pina, Dmytro S. Nesterov, Armando J. L. Pombeiro, Frédéric LamatyAbstract:The exotic “Asian Lantern” heterometallic cage silsesquioxane [(PhSiO1.5)20(FeO1.5)6(NaO0.5)8(n-BuOH)9.6(C7H8)] (I) was obtained and characterized by X-ray diffraction, EXAFS, topological analyses and DFT calculation. The magnetic property investigations revealed that it shows an unusual Spin glass-like behavior induced by a particular triangular arrangement of Fe(III) ions. Cyclohexane and other alkanes as well as benzene can be oxidized to the corresponding alkyl hydroperoxides and phenol, respectively, by hydrogen peroxide in air in the presence of catalytic amounts of complex I and nitric acid. The I-catalyzed reaction of cyclohexane, c-C6H12, with H216O2 in an atmosphere of 18O2 gave a mixture of labeled and non-labeled cyclohexyl hydroperoxides, c-C6H11–16O–16OH and c-C6H11–18O–18OH, respectively, with an 18O incorporation level of ca. 12%. Compound I also revealed high efficiency in the oxidative amidation of alcohols into amides: in the presence of complex I, only 500 ppm of iron was allowed to reach TON and TOF values of 1660 and 92 h−1.
