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化学特別講義VII
化学特別講義VII/ Special Lecture on Advanced Chemistry VII
化学専攻と工学系化学3専攻(応用化学専攻、化学システム工学専攻、化学生命
工学専攻)が連携し、理工の枠を超えた教育と国際性豊かな人材育成を目指し、
外国人招聘教授や国内の専門家による最先端化学に関する講義を行う。
The Department of Chemistry and the three chemistry-related departments at
the Graduate School of Engineering (Department of Applied Chemistry,
Department of Chemical System Engineering, and Department of Chemistry and
Biotechnology) jointly provide lectures on cutting-edge fields of
chemistry, with the goal of transcending the boundary between science and
engineering to enhance education and foster young researchers with global
perspectives. Lectures will be given by invited professors from abroad and
specialists from Japan.
Course Title: Molecular magnetism in conjugated carbon materials: the structural, electronic and quantum properties.
Graphene, a single-layer network of carbon atoms, shows outstanding electrical and mechanical properties and, when cut into pieces at the nanometer-scale, it should exhibit halfmetallicity, quantum confinement and edge effects. Controlling the dynamics of spins in carbon nanosystems is not only interesting because we are introducing a spin degree of freedom in a material that is otherwise diamagnetic, but also pivotal to the design of spintronic and quantum computing devices. As a result, magnetic phenomena in graphene have undergone intense theoretical scrutiny, but experimental investigations are hampered by the lack of the required atomic control over the morphology. Edges, and that the proposed graphene terminations are usually chemically unstable, and standard top-down methods are just too rough. Several questions remain untested: what is the effect of the topology and morphology of the graphene? How can molecular spins be assembled into hybrid structures? What is the influence of the graphene environment on the spin? Can molecules be used to control coherent currents in graphene devices?
Here we try to provide an overview of the origin and future of these questions, discussing spin-graphene interactions and the relevance of a molecular approach to the design of magnetic materials in exploring these properties.
The lecture series will start with the introduction to the realm of nanoscale and molecular magnetism, with an introduction to classical and quantum spin properties. We will then introduce, with a general overview, the transport and applicative potential of graphene, especially when in nanostructures. Special attention will be devoted to molecular ways of producing graphene-like molecular systems, and we shall then discuss the magnetism of organic materials, and molecular pathways towards different functionalities. Eventually, we shall provide an overview of the techniques used for the investigation of these aterials, such as single-molecule transport, scanning tunnelling microscopy and pulsed electron paramagnetic resonance. The lecture will also cover perspectives in instrumentation
development and trends in the detection of single spins, with particular attention to the potential that instrument with ultimate detection have to usher novel devices and applications. Eventually we shall discuss future challenges in the area, and the last part of the lecture series will then lead into the final seminar, where we will present some of our own results.
Teaching staff: Prof.Lapo Bogani
(University of Oxford)
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