physics

Katsunori Wakabayashi

Katsunori Wakabayashi is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Katsunori Wakabayashi rather than just read about it. In short: Katsunori Wakabayashi (若林克法, Wakabayashi Katsunori) is a physicist at the International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Japan. He is an authority and leading researcher in nanotechnology in the area of energy states of single wall carbon nanotubes (SWCN).

Key takeaways

Katsunori Wakabayashi belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Katsunori Wakabayashi to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Katsunori Wakabayashi from memory before moving on to harder problems.

Reference excerpt

Katsunori Wakabayashi (若林克法, Wakabayashi Katsunori) is a physicist at the International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Japan. He is an authority and leading researcher in nanotechnology in the area of energy states of single wall carbon nanotubes (SWCN). His research is notable for the edge effects of the nanographene materials, which is a part of the single layer graphene. He obtained his Ph.D. in 2000 from University of Tsukuba in Japan. From 2000 to 2009 he was an assistant professor at Department of Quantum Matter in Hiroshima University, Japan. From 2009, he is an Independent Scientist at International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) in Tsukuba, Japan. Beside the above primary research position, he was a visiting scholar at ETH-Zurich, Switzerland from 2003 to 2005, also had a concurrent position as PRESTO researcher in Japan Science and Technology Agency (JST).

Representative publications Fujita, M.; Wakabayashi, K.; Nakada, K.; Kusakabe, K. (1996). "Peculiar Localized State at Zigzag Graphite Edge". J. Phys. Soc. Jpn. 65 (7): 1920–1923. Bibcode:1996JPSJ...65.1920F. doi:10.1143/JPSJ.65.1920. Wakabayashi, K.; Sigrist, M.; Fujita, M. (1998). "Spin Wave Mode of Edge-Localized Magnetic States in Nanographite Zigzag Ribbons". J. Phys. Soc. Jpn. 67 (6): 2089–2093. Bibcode:1998JPSJ...67.2089W. doi:10.1143/JPSJ.67.2089. Wakabayashi, K.; Fujita, M.; Ajiki, H.; Sigrist, M. (1999). "Electronic and magnetic properties of nanographite ribbons". Phys. Rev. B. 59 (12): 8271–8282. arXiv:cond-mat/9809260. Bibcode:1999PhRvB..59.8271W. doi:10.1103/PhysRevB.59.8271. S2CID 119523846. Wakabayashi, K. (2001). "Electronic transport properties of nanographite ribbon junctions". Phys. Rev. B. 64 (12) 125428. Bibcode:2001PhRvB..64l5428W. doi:10.1103/PhysRevB.64.125428. Wakabayashi, K.; Sigrist, M. (2000). "Zero-Conductance Resonances due to Flux States in Nanographite Ribbon Junctions". Phys. Rev. Lett. 84 (15): 3390–3393. arXiv:cond-mat/9907212. Bibcode:2000PhRvL..84.3390W. doi:10.1103/PhysRevLett.84.3390. PMID 11019097. S2CID 33507447. Wakabayashi, K.; Takane, Y.; Sigrist, M. (2007). "Perfectly Conducting Channel and Universality Crossover in Disordered Graphene Nanoribbons". Phys. Rev. Lett. 99 (3) 036601. arXiv:cond-mat/0702230. Bibcode:2007PhRvL..99c6601W. doi:10.1103/PhysRevLett.99.036601. PMID 17678303. S2CID 29023466. Katsunori Wakabayashi, "Low-Energy Physical Properties of Edge States in Nano-Carbon Systems", in Springer Series in Solid State Physics, vol. 156, S.N. Kamakar et al. eds., ISBN 978-3-540-72631-9 Katsunori Wakabayashi, Electronic and Magnetic Properties of Nanographite, p. 279–304, Carbon-based Magnetism – An overview of the magnetism of metal free carbon-based compounds and materials edited by T. Makarova, F. Palacio, (Elsevier, 2006). ISBN 0-444-51947-5.

Award The original paper of graphene edge state and graphene nanoribbons was awarded the JPS Best Paper Award in March 2003 from the Physical Society of Japan. He has been awarded the commendation of ministry of education, culture, sports, science and technology (MEXT), Japan in 2010 for the contribution of pioneering works on theoretical research of nanoscale effect on electronic properties of graphene. In 2017, he has been awarded the JSPS Prize from Japan Society for the Promotion of Science (JSPS).

See also Graphene oxide paper Carbon nanotubes Mitsutaka Fujita

References

External links English website

Worked examples

Example 1 — a first encounter with Katsunori Wakabayashi

Start with the simplest possible case. Write down what Katsunori Wakabayashi claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Katsunori Wakabayashi before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Katsunori Wakabayashi ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Katsunori Wakabayashi

In research: Katsunori Wakabayashi appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Katsunori Wakabayashi in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Katsunori Wakabayashi is common in secondary-school and first-year university syllabi. It links to neighbouring topics Japanese nanotechnologists, Japanese physicists, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Katsunori Wakabayashi outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Katsunori Wakabayashi in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Katsunori Wakabayashi means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Katsunori Wakabayashi out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Katsunori Wakabayashi in simple terms?

Why does Katsunori Wakabayashi matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Katsunori Wakabayashi?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Katsunori Wakabayashi.