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【期刊论文】Brownian motion of suspended particles in an anisotropic medium*
夏元复, Y.E Hsia a, N. Fang a, H.M. Widatallah a, D.M. Wu a, X.M. Lee a and J.R, Zhang b
Hyperfine Interactions 126 (2000) 401-406,-0001,():
-1年11月30日
Some experimental results in the case of anisotropic media are at variance with the Einstein-Stokes formula of Brownian motion and the Singwi-Sjolander model. The dis-agreement comes from the anchor effect. The concept of "pseudoparticle" is introduced in order to retain the Singwi-Sjolander formalism. Mossbauer spectroscopy can be used to estimate the thickness of the anchored liquid-crystalline molecular textures forming on the surface of Brownian particles.
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夏元复, Yuanfu Hsia and Hongqi Xiong
Hyperfine Interactions 94 (1994) 2053-2058,-0001,():
-1年11月30日
Y1.6Ca1.4V0.4sSn0.5Fe4.05O12 has been bombarded with a 0.56 GeV C6+ ion beam. The vacancies and vacancy clusters induced by the irradiation change the directions of hyperfine fields around the defects. The reduction of the magnetic hyperfine field is caused by the lower superexchnage field due to the formation of the O2- vacancies. The change of direction of the hyperfine field has also been observed in Mtissbauer spectra. X-ray diffraction showed that the defects give rise to an increase of the lattice constantof the samples.
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夏元复, H, M, Widatallah, Y.F. Hsia, N. Fang, X.M. Lee
Physics Letters A 215 (1996) 326-330,-0001,():
-1年11月30日
The Brownian motion of suspended panicles in EBBA liquid crystal is studied by the Mossbauer technique. Different values are obtained for both the radius of the particles and their mean square displacement in the nematic phase and the isotropic one. This behavior is attributed to anchored, molecular textures on the particles" surfaces. The texture thickness is estimated from the Mossbauer data.
Mossbauer spectroscopy, Nematie liquid crystal, Brownian motion
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【期刊论文】Local-realism violations in two-particle interferometry
夏元复, Xiao-hua Wu, , *, Rui-hua Xie, Xiao-dong Huang, and Yuan-fu Hsia
,-0001,():
-1年11月30日
Using a quantum-optical setting, we demonstrate local-realism violation for a maximally entangled state of two particles without using inequalities. Our proof can be generalized to all arbitrary entangled states for two particles.
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