Magnetic Field Dependence of Spatiotemporal Chaos in a Homeotropic Nematic System
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概要
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We investigate the response of electroconvective patterns to an external magnetic field $\mathbf{H}$ in a homeotropic nematic system where spatiotemporal chaos called soft-mode turbulence (SMT) occurs. The pattern ordering $M_{\text{p}}$, which shows pattern regularity in SMT, increases with the magnetic field $H$ due to the suppression of the azimuthal rotational freedom. Three regions in the $H$-dependence of $M_{\text{p}}$ are found: the zero regime, the steep increase regime and the saturated regime. In the steep increase regime, $M_{\text{p}}$ shows a linear relation with $\bar{H}^{2}$, from which the susceptibility $\chi_{\text{p}}$ for the pattern ordering is obtained.
- 2010-12-15
著者
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Anugraha Rinto
Department Of Applied Quantum Physics And Nuclear Engineering Graduate School Of Engineering Kyushu
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Hidaka Yoshiki
Department Of Applied Physics Faculty Of Engineering Kyushu University
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Kai Shoichi
Departemnt Of Applied Physics Kyushu University
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Ueki Tatsuhiro
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
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Nugroho Fahrudin
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
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Anugraha Rinto
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
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