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Article type: Cover
2003 Volume 58 Issue 7 Pages
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Article type: Index
2003 Volume 58 Issue 7 Pages
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2003 Volume 58 Issue 7 Pages
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A. I. Sanda
Article type: Article
2003 Volume 58 Issue 7 Pages
495-
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Zensho Yoshida
2003 Volume 58 Issue 7 Pages
496-503
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Deep and detailed observations into the universe are revealing diverse structures in plasmas-strong flow-field couplings yield complexity encompassing hierarchy of scales. The governing equations, however, are still in an undeveloped region of mathematical physics. By investigating a fundamental structure of nonlinearity and singular perturbations in vortex dynamics system, we delineate a possible theoretical route to complexity.
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Hidemi Shigekawa, Shyoji Yoshida, Osamu Takeuchi, Haruhiro Oigawa
2003 Volume 58 Issue 7 Pages
503-511
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Despite the great importance of the Si (100) surface for industrial applications and future nano-science and technology, the ground state of the Si (100) surface is still one of the most controversial issues in surface science. It is well known that there exists a second order phase transition at ∼200K on this surface, namely, from disorder (2×1) to order c (4×2) structure. However, in recent intensive studies by scanning probe microscopy, c(4×2), p(2×2)/c(4×2), and symmetric dimer phases have been observed to exist below 40K. We overview this quite curious phenomenon, through the eyes of the microscopy with atomic resolution.
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Tsuneyoshi Nakayama
2003 Volume 58 Issue 7 Pages
512-519
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This article reviews the progress that has been made over a half century in the investigation of the peculiar dynamic properties of silica glass in the teraherz (THz) frequency range. These are the increased inelastic scattering of light and neutrons at THz frequencies, the so-called Boson peak as well as unusual thermal conductivities observed at low temeratures. Experimental techiniques such as the inelastic scattering of light, neutrons and X-rays have greatly improved in recent years, and these have provided considerable information about the atomic vibrations in the THz frequency region. They form the basis for this perspective on the major advances in this decade from a new and tutorial point of view.
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Tomohiro Sasamoto
2003 Volume 58 Issue 7 Pages
520-523
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Understanding of the systems far from equilibrium is much less satisfactory compared to those in or close to equilibrium. Recently, exact solutions have been obtained for one-dimensional many-particle stochastic models which show interesting non-equilibrium phenomena. Some of such results are reported.
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Hiroshi Kontani
2003 Volume 58 Issue 7 Pages
524-528
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In the normal metal state of high-T
c cuprates, various physical quantities show non-Fermi liquid like behaviors, which have been studied intensively. Especially, the anomalous transport phenomena have been a central issue in high-T
c cuprates. We survey recent progress in the theoretical study of transport phenomena based on the Kubo formula, and show that various characteristic behaviors of Hall coefficient, thermoelectric power, magnetoresistance, and Nernst coefficient are natrally understood in a unifed manner in terms of the Fermi liquid thoery.
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Akinori Igarashi, Mineo Kimura, Isao Shimamura, Nobuyuki Toshima
2003 Volume 58 Issue 7 Pages
528-532
Published: July 05, 2003
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In a positron-atom encounter, electron-positron (e
- e
+) pair annihilation may occur as well as the formation of a bound system e
- e
+ called positronium. In the conventional theory, they have been treated as two independent processes. This theory is known, however, to break down in certain positron-energy regions, where it leads to an unphysical divergence of the annihilation cross section. We propose a new, more rigorous unified theory that deals with these two processes on the same footing, using a complex, absorption potential. This new theory tells that the two "processes" are in fact inseparable two pathways or mechanisms leading to the same final channel of pair annihilation. Applications to positron collisions with hydrogen atoms are also discussed.
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Hiromi Taniguchi, Masashi Miyashita, Masato Hedo, Yoshiya Uwadoko
2003 Volume 58 Issue 7 Pages
533-536
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We demonstrated that an organic charge-transfer complex, β'-(BEDT-TTF)
2ICl
2, which is a semiconductor with high resistivity, is metallized by application of extremely high pressure by means of a cubic anvil press. This metallization was accompanied with appearance of the highest-T
c superconductivity (T
c=14.2K at 8.2GPa) among the organic systems. We anticipate that many novel electronic phases including superconductivity will be uncovered in this extremely high pressure-range.
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 7 Pages
537-
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Kunio Goto
Article type: Article
2003 Volume 58 Issue 7 Pages
537-539
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Kazuo Miyajima
Article type: Article
2003 Volume 58 Issue 7 Pages
539-540
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Kazuo Kitahara
Article type: Article
2003 Volume 58 Issue 7 Pages
540-541
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Nobuhiro Go
Article type: Article
2003 Volume 58 Issue 7 Pages
542-544
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 7 Pages
544-
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 7 Pages
544-545
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 7 Pages
545-
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 7 Pages
546-
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
546-547
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
548-556
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
556-558
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
558-561
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
562-
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
563-564
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
564-565
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
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Article type: Appendix
2003 Volume 58 Issue 7 Pages
568-576
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