Time-resolved measurements of electric-field induced atomic motions by using short-pulse synchrotron-radiation

2015 Fiscal Year Final Research Report

• Project/Area Number: 26870491
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: Nagoya City University
• Principal Investigator: AOYAGI Shinobu 名古屋市立大学, その他の研究科, 准教授 (40360838)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 時分割X線回折 / 電場下X線回折 / 放射光 / 圧電体 / 強誘電体 / 水晶

Outline of Final Research Achievements

Atomic motions of a quartz oscillator under an alternating electric field are revealed by using a time-resolved synchrotron-radiation X-ray diffraction technique developed by this research subject. The lattice strain resonantly amplified by the alternating electric field is 10000 times larger than that induced by a static electric field. The resonantly amplified lattice vibration of the quartz oscillator is achieved by fast displacements of oxygen anions and collateral resilient deformation of Si－O－Si angles bridging rigid SiO4 tetrahedra.

Free Research Field

構造物性物理学