The Review of High Pressure Science and Technology

Foreword

Foreword

Tetsuo IRIFUNE

2012 Volume 22 Issue 4 Pages 271-272
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.271

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Reviews—The Thirtieth Anniversary of High-Pressure Science with Synchrotron Radiation—

Foreword

Wataru UTSUMI, Osamu OHTAKA

2012 Volume 22 Issue 4 Pages 273-275
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.273

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Phenomena Created in Dense Materials at High Pressure

Katsutoshi AOKI

2012 Volume 22 Issue 4 Pages 276-282
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.276

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Substances densified at pressures of several tens of gigapascals show various behaviors different from those at ambient pressure. Molecules in a solid state dissociate to form an atomic solid or combine to form polymers. Structural transformations with rearrangement of constituted atoms or molecules are common behaviors observed for all substances and often accompanied by electronic and magnetic transitions. High pressure thus develops an exciting world of materials science. Three topics are presented as examples; solid-state polymerization of acetylene, symmetrization of the hydrogen bonds in ice, and phase separation of lanthanum dihydride.

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Can We Realize the Hydrostatic Condition?

TAKEMURA Kenichi

2012 Volume 22 Issue 4 Pages 283-289
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.283

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We discuss if hydrostatic conditions are realized in actual high-pressure experiments. Specific arguments are given to low-temperature high-pressure experiments with a helium pressure transmitting medium. We further discuss general problems associated with solid pressure transmitting media.

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Review of High Pressure Research of Liquids and Amorphous Using Synchrotron Radiation

Kazuhiko TSUJI

2012 Volume 22 Issue 4 Pages 290-300
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.290

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High pressure research of liquids and amorphous using synchrotron radiation is reviewed. From the systematic research of various liquids, the difference of pressure-induced structural change between liquids and solids has been observed. The phase transitions between meta-stable phases are also reviewed from the experiments under low temperatures and high pressures.

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Development of High-Pressure X-Ray Diffraction and the Study of the Earth's Deep Interior

Takehiko YAGI

2012 Volume 22 Issue 4 Pages 301-308
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.301

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In this article, history of the development of high-pressure X-ray diffraction experiments combined with synchrotron radiation and advances of the study of the Earth's deep interior are reviewed. In 1970s, pressure range for high-pressure and high-temperature X-ray diffraction was limited to only a few GPa but now it is possible to get high quality data even above 300 GPa and we can study the behavior of materials under the entire conditions of the Earth's interior. A future plan for the study using neutron diffraction is also introduced.

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Laboratory News

Quantum Magnetism, Graduate School of Material Science, University of Hyogo

Yui SAKAGUCHI

2012 Volume 22 Issue 4 Pages 309-310
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.309

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Salon

Report on the 19th International Conference on Magnetism with Strongly Correlated Electron Systems 2012 (ICM2012)

Daisuke ORII

2012 Volume 22 Issue 4 Pages 311-312
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.311

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Report on the High-Pressure Mineral Physics Seminar-8

Daisuke WAKABAYASHI

2012 Volume 22 Issue 4 Pages 313-314
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.313

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Report on Joint 2012 COMPRES Annual Meeting and High-Pressure Mineral Physics Seminar-8

Takehiro KUNIMOTO

2012 Volume 22 Issue 4 Pages 315-316
Published: 2012
Released on J-STAGE: December 21, 2012

DOIhttps://doi.org/10.4131/jshpreview.22.315

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