Study of Ferroelastic Substances with Commensurate / Incommensurate Twin Boundaries by means of ESR-CT and STM Adopting Apparatuses Applying Heat and Uniaxial Stress

采用热和单轴应力装置的 ESR-CT 和 STM 研究具有等/不等双边界的铁弹性物质

• 批准号: 04640356
• 负责人: KOBAYASHI Tadashi
• 金额: $ 1.34万
• 依托单位: Hokuriku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04640356/
• 关键词: ESR Imaging; STM; AFM; Ferroelasticity; Domain; Twin boundary; Commensurate-Incommensurate; C_<60> fullerene; MRI; ESRイメージング(ESR Imaging); 強弾性体(Ferroelastic); 双晶面(twin bowndary); 分域(domain)

1.(1) Development of the Zupancic magnetic resonance imaging coil and the electron spin resonance imaging (ESRI) apparatus adopting dielectric resonator.(2) By using these apparatus, the observation of the ferroelasstic domain structure has been studied.2.(1) Development of apparatuses, applying heat and uniaxial stress, for STM and AFM.(2) By using this apparatuses, the temperature dependence of ferroelastic domain and domain boundary structure of EuP_5O_<14> and GdP_5O_<14> obtained by STM and AFM and X-ray diffraction was observed. We observed the temperature dependence of monoclinic beta angles and analyzed the width (about 0.6 mu m) and zigzag structure of ferroelastic domain boundary.(3) According to Sapriel's ferroelastic theory which doesn't take into consideration the width of the domain boundary, LaNbO_4 should have incomennsurate (W') twin boundaries, but W' boundaries cannot be detected through our close analysis of neutron and X-ray diffractions. Therefore if the incommensurate twin boundaries are suposed to exist, they are thought to be dissolved in the domain boundary regions.

1.(1)研制了Zupancic磁共振成像线圈和采用介质谐振器的电子自旋共振成像(ESRI)装置。(2)利用这些装置对铁弹磁畴结构的观测进行了研究。2.(1 ）开发了用于STM和AFM的施加热和单轴应力的装置。（2）通过使用该装置，EuP_5O_<14>和铁弹性域和域边界结构的温度依赖性和通过STM和AFM获得GdP_5O_ 14 并观察X射线衍射。我们观察了单斜β角的温度依赖性，并分析了铁弹域边界的宽度（约0.6μm）和Z字形结构。（3）根据不考虑域边界宽度的Sapriel铁弹理论，LaNbO_4应该有收入保证 (W') 孪生边界，但通过我们对中子和 X 射线衍射的仔细分析无法检测到 W' 边界。因此，如果假定存在不通约孪晶边界，则认为它们溶解在畴边界区域中。

项目成果

Masahiko Suhara: "Temperature and Angular Dependences of EPR Line Width in {N(CH_3)_4}_2CuCl_4 Crystal" J.Phys. Chem. Solids. Vol.53(1). 27-29 (1992)

Masahiko Suhara：“{N(CH_3)_4}_2CuCl_4 晶体中 EPR 线宽的温度和角度依赖性”J.Phys。

Tadashi Kobayashi: "Observation of the Ferroelastic Domain Structure of MP_5O_<14>(M:La-Tb)by means of STM,ESR and X-ray Diffraction" Jpn.J.Appl.Phys.(1994)

小林正：“通过 STM、ESR 和 X 射线衍射观察 MP_5O_<14>(M:La-Tb) 的铁弹性域结构”Jpn.J.Appl.Phys.(1994)

小林 正、勝田 平俊、竹井 巌、原 秀元、柳生 秀樹、森田 洋右、斉藤 晴夫、松永 孝之: "ESRイメージングプレートによる放射線計測システムの開発" Advances in ESR Applications. 8. 9-13 (1992)

Tadashi Kobayashi、Hidetoshi Katsuta、Iwao Takei、Hidemoto Hara、Hideki Yagyu、Hiroaki Morita、Haruo Saito、Takayuki Matsunaga：“使用 ESR 成像板开发辐射测量系统”ESR 应用进展 (1992)。

Tadashi Kobayashi: "Observation of the Ferroelastic Domain Structure of MP_5O_<14> (M : La-Tb) by means of Scanning Tunneling Microscope, Electron Sp in Resonance and X-ray Diffraction" Jpn.j.Appl. Phys. Part 2, Letters. Vol.33(5A). (1994)

Tadashi Kobayashi：“通过扫描隧道显微镜、共振电子 Sp 和 X 射线衍射观察 MP_5O_<14>（M：La-Tb）的铁弹性域结构”Jpn.j.Appl。

Tadashi Kobayashi: "Development of Radiation Dosimetry System Adopting ESR Imaging Plates" Adv. ESR Appl., (ISSN 0914-9880). Vol.8. 9-13 (1992)

Tadashi Kobayashi：“采用 ESR 成像板的辐射剂量测定系统的开发”Adv.