2017 Fiscal Year Final Research Report

Theory of Spin and Charge Dynamics and Inelastic X-Ray Scattering in 3d Transition-Metal Compounds

Research Project

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Project/Area Number	26287079
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Partial Multi-year Fund
Section	一般
Research Field	Condensed matter physics II
Research Institution	Tokyo University of Science
Principal Investigator	Tohyama Takami 東京理科大学, 理学部第一部応用物理学科, 教授 (70237056)
Co-Investigator(Kenkyū-buntansha)	曽田繁利国立研究開発法人理化学研究所, 計算科学研究機構, 研究員 (60466414) 兼下英司仙台高等専門学校, 総合工学科, 准教授 (60548212) 筒井健二国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所放射光科学研究センター, 上席研究員(定常) (80291011)
Co-Investigator(Renkei-kenkyūsha)	ISHII Kenji 量子科学技術研究開発機構, 関西光科学研究放射光科学研究センター, 上席研究員 (40343933) WAKIMOTO Shuuichi 日本原子力研究開発機構, 量子ビーム応用研究部門, 上席研究員 (40399415) BARON Alfred 理化学研究所, バロン物質ダイナミクス研究室, 主任研究員 (90442920)
Project Period (FY)	2014-04-01 – 2018-03-31
Keywords	非弾性Ｘ線散乱 / 強相関電子系 / 3d遷移金属化合物 / 計算物理学的手法
Outline of Final Research Achievements	We applied the theory of resonant inelastic x-ray scattering (RIXS) and nonresonant inelastic x-ray scattering (NIXS) developed by our group to cuprate superconductors and iron-based superconductors and examined the nature of spin, charge, and orbital excitations in these materials. In particular, we clarified the charge excitations and their incident x-ray energy dependence in RIXS of cuprate superconductors and the condition in NIXS giving maximum intensity for a particular orbital component of an iron-based compound. These results are useful in analyzing corresponding experimental data.
Free Research Field	物性理論