Development of Criterion for Mechanical and Functional Fractures in Nano-Structures

纳米结构机械和功能断裂标准的制定

• 批准号: 23656084
• 负责人: SHIMADA Takahiro
• 金额: $ 2.5万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656084/
• 关键词: ナノ構造体; 破壊クライテリオン; マルチフィジックス; 分子動力学; 第一原理解析; 機能不安定クライテリオン; 強誘電体; 磁性体

In this study, I developed the criterion to describe the mechanical factures as well as functional instabilities of atomic components. We validated the proposed method as criterion by applying the method to ferroelectric and magnetic systems. In addition, the method describes the origin of fractures and functional instabilities in the atomic components. I further elucidated the multi-physics properties (the coupling effect between mechanical deformation and functionalities) in nano-structured materials.

在这项研究中，我开发了描述原子组件的机械断裂和功能不稳定性的标准。我们通过将该方法应用于铁电和磁系统来验证所提出的方法作为标准。此外，该方法还描述了原子成分中断裂的起源和功能不稳定性。我进一步阐明了纳米结构材料的多物理特性（机械变形和功能之间的耦合效应）。

项目成果

Development of Multi-Physics Instability Criterion for Atomic Structures and Application to Domain Switching in Ferroelectrics under External Electric Field

• DOI: 10.2472/jsms.61.155
• 发表时间: 2012
• 期刊: Journal of The Society of Materials Science, Japan
• 作者: T. Shimada;H. Sakamoto;T. Kitamura

Criterion of mechanical instabilities for dislocation structures

• DOI: 10.1016/j.msea.2011.12.027
• 发表时间: 2012-02
• 期刊: Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
• 影响因子: 6.4
• 作者: Yabin Yan;T. Kondo;T. Shimada;T. Sumigawa;T. Kitamura

First-principles study of nanometer-sharp domain walls in ferromagnetic Fe monolayers under in-plane strain

• DOI: 10.1088/0953-8984/24/9/095303
• 发表时间: 2012-03
• 期刊: Journal of Physics: Condensed Matter
• 作者: T. Shimada;J. Okuno;Y. Ishii;T. Kitamura

Fracture Nanomechanics

• DOI: 10.1007/978-981-10-6884-3_6
• 发表时间: 2019
• 期刊: Handbook of Mechanics of Materials
• 作者: Yabin Yan;T. Sumigawa;Licheng Guo;T. Kitamura

Noncollinear magnetic spin-spiral wave excitation in epitaxial Fe(110) monolayer from first-principles

第一原理外延 Fe(110) 单层非共线磁自旋螺旋波激发

• 发表时间: 2012
• 作者: Masaaki Koganemaru;Keisuke Yoshida;Toru Ikeda;Noriyuki Miyazaki and Hajime Tomokage;中谷匡志・X. W. Lei・土井祐介・中谷彰宏;Takahiro Shimada
• 通讯作者: Takahiro Shimada