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Hak Ki Yu - One of the best experts on this subject based on the ideXlab platform.
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the migration of alkali metal na li and k ions in single crystalline vanadate nanowires rasch Hinrichsen resistivity
Current Applied Physics, 2019Co-Authors: Byeong Uk Ye, Jeong Min Baik, Hak Ki YuAbstract:Abstract We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li4V10O27), Na-vanadate (NaV6O15), and K-vanadate (KV4O10) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH)3) nanoparticles containing Li+, Na+, and K+ ions and further the analysis of the migration of charged particles (Li+, Na+, and K+) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V2O5, resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
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The migration of alkali metal (Na+, Li+, and K+) ions in single crystalline vanadate nanowires: Rasch-Hinrichsen resistivity
Current Applied Physics, 2019Co-Authors: Byeong Uk Ye, Jeong Min Baik, Hak Ki YuAbstract:Abstract We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li4V10O27), Na-vanadate (NaV6O15), and K-vanadate (KV4O10) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH)3) nanoparticles containing Li+, Na+, and K+ ions and further the analysis of the migration of charged particles (Li+, Na+, and K+) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V2O5, resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
Byeong Uk Ye - One of the best experts on this subject based on the ideXlab platform.
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the migration of alkali metal na li and k ions in single crystalline vanadate nanowires rasch Hinrichsen resistivity
Current Applied Physics, 2019Co-Authors: Byeong Uk Ye, Jeong Min Baik, Hak Ki YuAbstract:Abstract We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li4V10O27), Na-vanadate (NaV6O15), and K-vanadate (KV4O10) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH)3) nanoparticles containing Li+, Na+, and K+ ions and further the analysis of the migration of charged particles (Li+, Na+, and K+) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V2O5, resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
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The migration of alkali metal (Na+, Li+, and K+) ions in single crystalline vanadate nanowires: Rasch-Hinrichsen resistivity
Current Applied Physics, 2019Co-Authors: Byeong Uk Ye, Jeong Min Baik, Hak Ki YuAbstract:Abstract We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li4V10O27), Na-vanadate (NaV6O15), and K-vanadate (KV4O10) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH)3) nanoparticles containing Li+, Na+, and K+ ions and further the analysis of the migration of charged particles (Li+, Na+, and K+) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V2O5, resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
Jeong Min Baik - One of the best experts on this subject based on the ideXlab platform.
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the migration of alkali metal na li and k ions in single crystalline vanadate nanowires rasch Hinrichsen resistivity
Current Applied Physics, 2019Co-Authors: Byeong Uk Ye, Jeong Min Baik, Hak Ki YuAbstract:Abstract We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li4V10O27), Na-vanadate (NaV6O15), and K-vanadate (KV4O10) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH)3) nanoparticles containing Li+, Na+, and K+ ions and further the analysis of the migration of charged particles (Li+, Na+, and K+) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V2O5, resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
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The migration of alkali metal (Na+, Li+, and K+) ions in single crystalline vanadate nanowires: Rasch-Hinrichsen resistivity
Current Applied Physics, 2019Co-Authors: Byeong Uk Ye, Jeong Min Baik, Hak Ki YuAbstract:Abstract We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li4V10O27), Na-vanadate (NaV6O15), and K-vanadate (KV4O10) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH)3) nanoparticles containing Li+, Na+, and K+ ions and further the analysis of the migration of charged particles (Li+, Na+, and K+) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V2O5, resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
Su-chan Park - One of the best experts on this subject based on the ideXlab platform.
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Universality-class crossover by a nonorder field introduced to the pair contact process with diffusion
Physical Review E, 2017Co-Authors: Su-chan ParkAbstract:The one-dimensional pair contact process with diffusion (PCPD), an interacting particle system with diffusion, pair annihilation, and creation by pairs, has defied a consensus about the universality class that it belongs to. An argument by Hinrichsen [H. Hinrichsen, Physica A {\bf 361}, 457 (2006)] claims that freely diffusing particles in the PCPD should play the same role as frozen particles, when it comes to the critical behavior. Therefore, the PCPD is claimed to have the same critical phenomena as a model with infinitely many absorbing states that belongs to the directed percolation (DP) universality class. To investigate if diffusing particles are really indistinguishable from frozen particles in the sense of the renormalization group, we numerically study a variation of the PCPD by introducing a nonorder field associated with infinitely many absorbing states. We find that a crossover from the PCPD to the DP occurs due to the nonorder field. Since, by studying a similar model, we exclude the possibility that mere introduction of a nonorder field to one model can entail a nontrivial crossover to another model in the same universality class, we attribute the observed crossover to the difference of the universality class of the PCPD from the DP class.Comment: 7 pages, 5 figure
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Universality-class crossover by a nonorder field introduced to the pair contact process with diffusion.
Physical review. E, 2017Co-Authors: Su-chan ParkAbstract:The one-dimensional pair contact process with diffusion (PCPD), an interacting particle system with diffusion, pair annihilation, and creation by pairs, has defied consensus about the universality class to which it belongs. An argument by Hinrichsen [Physica A 361, 457 (2006)PHYADX0378-437110.1016/j.physa.2005.06.101] claims that freely diffusing particles in the PCPD should play the same role as frozen particles when it comes to the critical behavior. Therefore, the PCPD is claimed to have the same critical phenomena as a model with infinitely many absorbing states that belongs to the directed percolation (DP) universality class. To investigate if diffusing particles are really indistinguishable from frozen particles in the sense of the renormalization group, we study numerically a variation of the PCPD by introducing a nonorder field associated with infinitely many absorbing states. We find that a crossover from the PCPD to DP occurs due to the nonorder field. By studying a similar model, we exclude the possibility that the mere introduction of a nonorder field to one model can entail a nontrivial crossover to another model in the same universality class, thus we attribute the observed crossover to the difference of the universality class of the PCPD from the DP class.
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Absence of the discontinuous transition in the one-dimensional triplet creation model
Physical Review E, 2009Co-Authors: Su-chan ParkAbstract:Although Hinrichsen in his unpublished work theoretically rebutted the possibility of the discontinuous transition in one-dimensional nonequilibrium systems unless there are additional conservation laws, long-range interactions, macroscopic currents, or special boundary conditions, we have recently observed the resurrection of the claim that the triplet creation (TC) model introduced by Dickman and Tom\'e [Phys. Rev. A 44, 4833 (1991)] would show the discontinuous transition. By extensive simulations, however, we find that the one-dimensional TC does belong to the directed percolation universality class even for larger diffusion constant than the suggested tricritical point in the literature. Furthermore, we find that the phase boundary is well described by the crossover from the mean field to the directed percolation, which supports the claim that the one-dimensional TC does not exhibit a discontinuous transition.
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Absence of the discontinuous transition in the one-dimensional triplet creation model.
Physical review. E Statistical nonlinear and soft matter physics, 2009Co-Authors: Su-chan ParkAbstract:Although Hinrichsen in his unpublished work theoretically rebutted the possibility of the discontinuous transition in one-dimensional nonequilibrium systems unless there are additional conservation laws, long-range interactions, macroscopic currents, or special boundary conditions, we have recently observed the resurrection of the claim that the triplet creation (TC) model introduced by Dickman and Tomé [Phys. Rev. A 44, 4833 (1991)] would show the discontinuous transition. By extensive simulations, however, we find that the one-dimensional TC does belong to the directed percolation universality class even for larger diffusion constant than the suggested tricritical point in the literature. Furthermore, we find that the phase boundary is well described by the crossover from the mean field to the directed percolation, which supports the claim that the one-dimensional TC does not exhibit a discontinuous transition.
E P Ryan - One of the best experts on this subject based on the ideXlab platform.
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on the supremally regulated complex stability radius as a real robustness measure
Systems & Control Letters, 1991Co-Authors: Stuart Townley, E P RyanAbstract:Abstract The main result of this paper is the identification of a class of real systems for which the supremal Hinrichsen-Pritchard complex stability radius is equal to the supremal Hinrichsen-Pritchard real stability radius . For this class (which includes all planar linear systems with non-zero input operator) the remarkable differences, which are known to exist between these two measures of robustness in the absence of control, can be eliminated by state feedback. The respective differences and equivalences are illustrated by examples of single-input uncertain planar control systems.
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Non-linear systems: robustness optimization and universal adaptive stabilization
29th IEEE Conference on Decision and Control, 1990Co-Authors: E P Ryan, S. TownleyAbstract:The authors consider the optimally robust and adaptive stabilization of uncertain systems modeled as controlled differential inclusions. They adopt an approach in the spirit of the Hinrichsen-Pritchard supremal complex stability radius, which is consistent with the approach of M.A. Rotea and P.P. Khargonekar (1989) in terms of quadratic stabilizability. They do not, however, consider the case of the supremal real stability radius and preliminary investigations suggest that there will be differences between the bounds achieved by the authors' geometric approach and other methods which do not exploit this extra structure.