研究・研究者
研究会・セミナー
| 演 題 | 「Single Molecule Spectroscopy using STM」 |
|---|---|
| 日 時 | 2014年11月17日(月) 16:00 |
| 講演者 | 川合眞紀 教授 (東京大学大学院新領域創成科学研究科・教授、理化学研究所・理事) |
| 場 所 | 分子科学研究所 研究棟2階 201号室 |
| 概 要 |
Since the invention of scanning tunneling microscope (STM), spectroscopy utilizing its ultimate spatial resolution was one of the goals of the application. Not only the static spectroscopy as STS including inelastic tunneling spectroscopy but also the motion or reaction induced by the excitation of molecular states are utilized to identify the quantum states of the materials. Vibrational spectrum of a single molecule provides useful information not only for the chemical identification of the molecule [1] but also for investigating how molecular vibrations can couple with the relevant dynamical processes [2-6], where the response of vibrationally mediated molecular motion to applied bias voltage, namely an “action spectrum”, can reveal vibrational modes that are excited through STM inelastic tunneling processes, because the molecular motion is induced only via the inelastic tunneling processes [3-5]. The term “Action spectrum” has been known as a technique in biology and/or electro-chemistry fields to identify the specific molecule that is active in reaction induced by photons in UV-Vis region. Here with the help of theory, details of the molecular motions coupling to the vibrational excitation is unveiled. |
| お問合せ先 | 山本浩史＆正岡重行（2014年度コロキウム委員） |
