Pub Date : 2020-01-01DOI: 10.4131/jshpreview.30.274
T. Konoike, K. Uchida, T. Osada
Kazuhito UCHIDA 2 長田 俊人 Toshihito OSADA 2 It is becoming evident that Dirac fermions are present in several materials other than graphene. The organic con-ductor a ( BEDT TTF ) 2 I 3 is known to be a first bulk crystal which realizes a massless Dirac fermion system under high pressure. By taking advantage of its bulk nature, we experimentally study the thermodynamic and ther-moelectric properties of Dirac fermions by using this system. Here, we will show the experimental technique and experimental results of the specific heat and thermopower of a ( BEDT TTF ) 2 I 3 under high pressure. ［ organic conductor, clamp-type pressure cell,
Kazuhito UCHIDA 2Toshihito OSADA 2越来越明显的是，狄拉克费米子存在于石墨烯以外的几种材料中。有机导体a(BEDTTTF) 2i3是已知的第一个在高压下实现无质量狄拉克费米子体系的体晶。利用狄拉克费米子的体积特性，实验研究了狄拉克费米子的热力学和热电性质。在这里，我们将展示在高压下(BEDTTTF) 2 I 3的比热和热功率的实验技术和实验结果。[有机导体，夹紧式压力电池，
{"title":"High Pressure Thermal Measurements in Organic Dirac Fermion System","authors":"T. Konoike, K. Uchida, T. Osada","doi":"10.4131/jshpreview.30.274","DOIUrl":"https://doi.org/10.4131/jshpreview.30.274","url":null,"abstract":" Kazuhito UCHIDA 2 長田 俊人 Toshihito OSADA 2 It is becoming evident that Dirac fermions are present in several materials other than graphene. The organic con-ductor a ( BEDT TTF ) 2 I 3 is known to be a first bulk crystal which realizes a massless Dirac fermion system under high pressure. By taking advantage of its bulk nature, we experimentally study the thermodynamic and ther-moelectric properties of Dirac fermions by using this system. Here, we will show the experimental technique and experimental results of the specific heat and thermopower of a ( BEDT TTF ) 2 I 3 under high pressure. ［ organic conductor, clamp-type pressure cell,","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70235110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/jshpreview.30.47
A. H. Mayo, M. Onose, S. Ishiwata
{"title":"Emergent Functional Material Science Group, Division of Materials Physics, Graduate School of Engineering Science, Osaka University","authors":"A. H. Mayo, M. Onose, S. Ishiwata","doi":"10.4131/jshpreview.30.47","DOIUrl":"https://doi.org/10.4131/jshpreview.30.47","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70235329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/JSHPREVIEW.30.216
N. Ozaki, K. Katagiri, Y. Tange, K. Miyanishi, K. Sueda, Y. Inubushi, T. Togashi, T. Yabuuchi
{"title":"Toward the Fusion of High-Power Laser Shock and Material Sciences","authors":"N. Ozaki, K. Katagiri, Y. Tange, K. Miyanishi, K. Sueda, Y. Inubushi, T. Togashi, T. Yabuuchi","doi":"10.4131/JSHPREVIEW.30.216","DOIUrl":"https://doi.org/10.4131/JSHPREVIEW.30.216","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"158 1","pages":"216-224"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70234394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/jshpreview.30.28
A. Shimizu
{"title":"Basic Study on Non-Freezing Transport of Cells by High Pressure","authors":"A. Shimizu","doi":"10.4131/jshpreview.30.28","DOIUrl":"https://doi.org/10.4131/jshpreview.30.28","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"30 1","pages":"28-35"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70234705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/JSHPREVIEW.30.237
T. Katsura, Y. Tange
1 バイロイト大学バイエルン地球科学研究所 Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany 2 北京高圧科学研究中心 Center for High Pressure Science & Technology Advanced Research, Bldg. # 8E, ZPark, 10 Xibeiwang East Rd, Haidian District, Beijing, 100094, P.R. China 3 〒6795198 兵庫県佐用郡佐用町光都 1 丁目 11 高輝度光科学研究センター Japan Synchrotron Radiation Research Institute (JASRI), 111 Kouto, Sayo-cho, Sayo-gun, Hyogo 6795198
1拜罗伊特大学巴伐利亚地球科学研究所Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth，北京高压科学研究中心Center for High Pressure Science & Technology Advanced Research, Bldg. # 8e，ZPark, 10xibeiwang East Rd, Haidian District, Beijing, 100094，p . r . china 3〒6795198兵库县佐用郡再町光都1丁目1高亮度光科学研究中心japan synchrotron radiation researchinstitute (jasri), 11kouto, sayo-cho, sayo-gun, hyogo 6795198
{"title":"A Plain Derivation of Birch-Murnaghan Equations of State, and Comparison with Other Equations of State","authors":"T. Katsura, Y. Tange","doi":"10.4131/JSHPREVIEW.30.237","DOIUrl":"https://doi.org/10.4131/JSHPREVIEW.30.237","url":null,"abstract":"1 バイロイト大学バイエルン地球科学研究所 Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany 2 北京高圧科学研究中心 Center for High Pressure Science & Technology Advanced Research, Bldg. # 8E, ZPark, 10 Xibeiwang East Rd, Haidian District, Beijing, 100094, P.R. China 3 〒6795198 兵庫県佐用郡佐用町光都 1 丁目 11 高輝度光科学研究センター Japan Synchrotron Radiation Research Institute (JASRI), 111 Kouto, Sayo-cho, Sayo-gun, Hyogo 6795198","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70235077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/jshpreview.30.111
H. Terasaki
of Terrestrial Planets 寺崎 英紀 Hidenori TERASAKI To constrain the core compositions of terrestrial planets, sound velocity and density of liquid Fe Ni S and Fe Ni Si alloys were measured up to 14 GPa. Addition of S reduces the P-wave velocity and bulk modulus of liquid Fe Ni while addition of Si rises the P-wave velocity and does not affect on the bulk modulus in the present pressure range. Based on the obtained elastic properties of liquid Fe Ni S and Fe Ni Si, the compositions of planetary cores are estimated by matching the planetary geodesy data to 3 7 wt S or wt
{"title":"Physical Properties and Composition of Cores of Terrestrial Planets","authors":"H. Terasaki","doi":"10.4131/jshpreview.30.111","DOIUrl":"https://doi.org/10.4131/jshpreview.30.111","url":null,"abstract":"of Terrestrial Planets 寺崎 英紀 Hidenori TERASAKI To constrain the core compositions of terrestrial planets, sound velocity and density of liquid Fe Ni S and Fe Ni Si alloys were measured up to 14 GPa. Addition of S reduces the P-wave velocity and bulk modulus of liquid Fe Ni while addition of Si rises the P-wave velocity and does not affect on the bulk modulus in the present pressure range. Based on the obtained elastic properties of liquid Fe Ni S and Fe Ni Si, the compositions of planetary cores are estimated by matching the planetary geodesy data to 3 7 wt S or wt","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70233329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/jshpreview.30.166
S. Takahashi
{"title":"Frontier Institute for Biomolecular Engineering Research, Konan University","authors":"S. Takahashi","doi":"10.4131/jshpreview.30.166","DOIUrl":"https://doi.org/10.4131/jshpreview.30.166","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"30 1","pages":"166-167"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70233437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/JSHPREVIEW.30.202
H. Murata
村田 秀信 Hidenobu MURATA Basic approaches of first-principles calculations for high-pressure synthesis of novel materials were discussed. Stabilities of materials under high-pressure conditions were often explained using enthalpies H , which are esti-mated with total energies in electronic structure calculations, volumes of materials and pressure. First-principles calculations reveal that the pressure dependence of enthalpies is mainly composed of that of the product of pressure and volumes rather than that of the total energies not only in hard materials but also in soft materials such as molecular crystals. Therefore, the volumes of materials play important roles for high-pressure phase transitions and chemical reactions under high-pressure conditions. Phase transitions during decompression process were also investigated using first-principles methods. Since the phase transitions are caused by mobile ions, configurations of immobile ions have the key to
{"title":"First-Principles Calculations for High-Pressure Synthesis of Novel Materials","authors":"H. Murata","doi":"10.4131/JSHPREVIEW.30.202","DOIUrl":"https://doi.org/10.4131/JSHPREVIEW.30.202","url":null,"abstract":"村田 秀信 Hidenobu MURATA Basic approaches of first-principles calculations for high-pressure synthesis of novel materials were discussed. Stabilities of materials under high-pressure conditions were often explained using enthalpies H , which are esti-mated with total energies in electronic structure calculations, volumes of materials and pressure. First-principles calculations reveal that the pressure dependence of enthalpies is mainly composed of that of the product of pressure and volumes rather than that of the total energies not only in hard materials but also in soft materials such as molecular crystals. Therefore, the volumes of materials play important roles for high-pressure phase transitions and chemical reactions under high-pressure conditions. Phase transitions during decompression process were also investigated using first-principles methods. Since the phase transitions are caused by mobile ions, configurations of immobile ions have the key to","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70233846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/jshpreview.30.311
H. Kadobayashi
{"title":"Structural Evolution and Stability of Methane Hydrate under High-Pressure and High-Temperature Conditions","authors":"H. Kadobayashi","doi":"10.4131/jshpreview.30.311","DOIUrl":"https://doi.org/10.4131/jshpreview.30.311","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70235445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.4131/JSHPREVIEW.30.210
N. Nishiyama
宣正 Norimasa NISHIYAMA Transparent nanopolycrystalline cubic silicon nitride ( g -Si 3 N 4 ) was fabricated under high pressure and temperature using Kawai-type apparatus. Vickers indentation tests were carried out and the hardness value of 35 GPa was obtained. Fracture toughness was estimated based on length of crack generated from the Vickers indentation prints and the estimated value is 3.5 MPa m 1 / 2 , which is similar to that of polycrystalline alumina. Elastic moduli of this material were measured by Brillouin spectroscopy. These results show that cubic silicon nitride is one of the third hardest materials. We confirmed excellent thermal metastability of this material in air at temperatures up to 1,460 ° C. Low-temperature heat capacities of b - and g -Si 3 N 4 were measured and the equilibrium phase boundary between these two calculated. transparent,
{"title":"Fabrication of Transparent Polycrystalline Cubic Silicon Nitride: Physical Properties and Phase Boundary","authors":"N. Nishiyama","doi":"10.4131/JSHPREVIEW.30.210","DOIUrl":"https://doi.org/10.4131/JSHPREVIEW.30.210","url":null,"abstract":"宣正 Norimasa NISHIYAMA Transparent nanopolycrystalline cubic silicon nitride ( g -Si 3 N 4 ) was fabricated under high pressure and temperature using Kawai-type apparatus. Vickers indentation tests were carried out and the hardness value of 35 GPa was obtained. Fracture toughness was estimated based on length of crack generated from the Vickers indentation prints and the estimated value is 3.5 MPa m 1 / 2 , which is similar to that of polycrystalline alumina. Elastic moduli of this material were measured by Brillouin spectroscopy. These results show that cubic silicon nitride is one of the third hardest materials. We confirmed excellent thermal metastability of this material in air at temperatures up to 1,460 ° C. Low-temperature heat capacities of b - and g -Si 3 N 4 were measured and the equilibrium phase boundary between these two calculated. transparent,","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70233982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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