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P Levy - One of the best experts on this subject based on the ideXlab platform.
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Manganite-based three level memristive devices with self-healing capability
Physics Letters Section A General Atomic and Solid State Physics, 2016Co-Authors: W.r. Acevedo, D. Rubi, J. Lecourt, U. Lüders, F. Gomez-marlasca, P. Granell, F. Golmar, P LevyAbstract:We report on non-volatile memory devices based on multifunctional Manganites. The electric field induced resistive switching of Ti/La 1/3 Ca 2/3 MnO 3 /n-Si devices is explored using different measurement protocols. We show that using current as the electrical stimulus (instead of standard voltage-controlled protocols) improves the electrical performance of our devices and unveils an intermediate resistance state. We observe three discrete resistance levels (low, intermediate and high), which can be set either by the application of current–voltage ramps or by means of single pulses. These states exhibit retention and endurance capabilities exceeding 10 4 s and 70 cycles, respectively. We rationalize our experimental observations by proposing a mixed scenario were a metallic filament and a SiO x layer coexist, accounting for the observed resistive switching. Overall electrode area dependence and temperature dependent resistance measurements support our scenario. After device failure takes place, the system can be turned functional again by heating up to low temperature (120 °C), a feature that could be exploited for the design of memristive devices with self-healing functionality. These results give insight into the existence of multiple resistive switching mechanisms in Manganite-based memristive systems and provide strategies for controlling them. © 2016 Elsevier B.V.
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Electric and magnetic properties of PMMA/Manganite composites
Physica B: Condensed Matter, 2009Co-Authors: C. Artale, S. Fermepin, M. Forti, M. Latino, M. Quintero, L. Granja, J. Sacanell, G. Polla, P LevyAbstract:We present the synthesis and characterization of the La2/3Sr1/3MnO3 Manganite in the form of tapes using polymethyl methacrylate (PMMA) as binder. We have studied their electric and magnetic properties as a function of temperature and magnetic field. The magnetization results have been shown to be dominated by the intrinsic magnetic properties of the Manganite. Resistivity measurements showed an insulating behavior in the whole range of temperatures measured, indicating that the percolation threshold of Manganite grains has not been reached even for the sample with 35% of PMMA relative content. The obtained magnetoresistance is largest in the sample with 35% of PMMA relative content.
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electrical current effect in phase separated la5 8 ypryca3 8mno3 charge order melting versus joule heating
Journal of Applied Physics, 2005Co-Authors: Joaquin Sacanell, Ana Gabriela Leyva, P LevyAbstract:We have studied the effect of electric field on transport properties of the prototypical phase-separated Manganite La5∕8−yPryCa3∕8MnO3 with y=0.34. Our results show that the suggested image, in which the charge ordered state is melted by the appliance of an electric current and∕or voltage, has to be revised. We explain the observed resistivity drop in terms of an artifact related to Joule heating and the particular hysteresis that the system under study displays, common to many other phase-separated Manganites.
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the electrical current effect in phase separated la5 8 ypryca3 8mno3 charge order melting vs joule heating
arXiv: Strongly Correlated Electrons, 2005Co-Authors: Joaquin Sacanell, Ana Gabriela Leyva, P LevyAbstract:We have studied the effect of electric field on transport properties of the prototypical phase separated Manganite La5/8-yPryCa3/8MnO3 with y=0.34. Our results show that the suggested image in which the charge ordered state is melted by the appliance of an electric current and/or voltage has to be revised. We were able to explain the observed resistivity drop in terms of an artifact related to Joule heating and the particular hysteresis that the system under study display, common to many other phase separated Manganites.
Ping Yang - One of the best experts on this subject based on the ideXlab platform.
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin that governs the macroscopic transport and magnetic properties of ultra-thin Manganites is revealed using a combination of spectroscopic ellipsometry, X-ray absorption, X-ray magnetic circular dichroism and transport measurements. The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
Xinmao Yin - One of the best experts on this subject based on the ideXlab platform.
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin that governs the macroscopic transport and magnetic properties of ultra-thin Manganites is revealed using a combination of spectroscopic ellipsometry, X-ray absorption, X-ray magnetic circular dichroism and transport measurements. The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
Muhammad Aziz Majidi - One of the best experts on this subject based on the ideXlab platform.
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin that governs the macroscopic transport and magnetic properties of ultra-thin Manganites is revealed using a combination of spectroscopic ellipsometry, X-ray absorption, X-ray magnetic circular dichroism and transport measurements. The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
Xiao Chi - One of the best experts on this subject based on the ideXlab platform.
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
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Unraveling how electronic and spin structures control macroscopic properties of Manganite ultra-thin films
NPG Asia Materials, 2015Co-Authors: Xinmao Yin, Muhammad Aziz Majidi, Xiao Chi, Peng Ren, Lu You, Natalia Palina, Caozheng Diao, Daniel Schmidt, Baomin Wang, Ping YangAbstract:The interplay between hybridization, orbital occupancy and spin that governs the macroscopic transport and magnetic properties of ultra-thin Manganites is revealed using a combination of spectroscopic ellipsometry, X-ray absorption, X-ray magnetic circular dichroism and transport measurements. The interplay between hybridization, orbital occupancy and spin governs the transport and magnetic properties of ultrathin Manganites. This finding was made by scientists in Singapore, China and Indonesia based on a new analysis of a doped Manganite ultrathin film. Thin films of doped perovskite Manganites exhibit exotic properties, but it is unclear what roles the spin, charge and orbital degrees of freedom of these strongly correlated electron systems play in generating such properties. Andrivo Rusydi, Junling Wang and collaborators observed an insulating, ferromagnetic phase below 140 kelvin, an insulating, paramagnetic phase above 195 kelvin, and a metal-like state at intermediate temperatures in their film. They found that the O2 p –Mn3 d hybridization strength drops with temperature, making the system more insulating and ferromagnetic, whereas the Jahn-Teller effect decreases dramatically in the intermediate temperature range, making the system more metal-like. Perovskite Manganites exhibit fascinating transport and magnetic properties, essential for fundamental research and applications. With the development of thin film technologies, more exotic properties have been observed in doped-Manganites over a wide range of temperature. Unraveling the interplay of spin, charge and orbital degrees of freedom that drives exotic, macroscopic properties is therefore crucial for the understanding of strongly correlated electron systems. Here, using a combination of transport, spectroscopic ellipsometry, X-ray absorption spectroscopy and X-ray magnetic circular dichroism, we observe two concomitant electronic and magnetic phases (insulating paramagnetic phase for T >195 K and insulating canted-ferromagnetic for T
