physics

Harold Y. Hwang

Harold Y. Hwang 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 Harold Y. Hwang rather than just read about it. In short: Harold Yoonsung Hwang (born 4 August 1970 in Pasadena, California) is an American physicist, specializing in materials physics, condensed matter physics, nanoscience, and quantum engineering. Education and career Harold Hwang graduated in 1993 from MIT with B.S. in physics, as well as B.S. and M.S. in electrical engineering.

Key takeaways

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

Reference excerpt

Harold Yoonsung Hwang (born 4 August 1970 in Pasadena, California) is an American physicist, specializing in materials physics, condensed matter physics, nanoscience, and quantum engineering.

Education and career Harold Hwang graduated in 1993 from MIT with B.S. in physics, as well as B.S. and M.S. in electrical engineering. He received in 1997 his Ph.D. from Princeton University with thesis advisor Nai Phuan Ong. At Bell Laboratories in New Jersey, Hwang was from 1994 to 1996 a research assistant and from 1996 to 2003 a member of the technical staff. At the department of advanced materials science and the department of applied physics at University of Tokyo in Kashiwa, Japan, he was from 2003 to 2008 an associate professor and from 2009 a full professor. From 2006 to 2007 he was also a visiting associate professor at the Institute for Chemical Research at Kyoto University. Since 2010, he has been a professor of physics at the department of applied physics at Stanford University and team leader of the Correlated Electron Research Group at the RIKEN Advanced Science Institute in Wakō, Saitama, Japan.

Research As a Ph.D. student, Hwang was part of a team that discovered that spin-polarized tunnel currents in polycrystalline manganates produce very high magnetoresistances. During his time at Bell Laboratories, his team developed methods for studying the "nature and length scales of charge screening in complex oxides" and how "short-length-scale electronic response can be probed and incorporated in thin-film oxide heterostructures" and also pointed out a two-dimensional metallic state at the interface between the band insulators LaAlO3 and SrTiO3. Subsequently, his team did research on phenomena which emerge at interfaces between oxide materials. An article that Hwang co-authored with Jan Hendrik Schön and two other physicists was published in April 2001 in the journal Science, but was retracted in November 2002.

Awards and honors In 2005 he received the Materials Research Society Outstanding Young Investigator Award. In 2008 he received the IBM Japan Science Prize and in 2013 the Ho-Am Prize in Science in Science. On 18th June 2014 he received, together with Jochen Mannhart and Jean-Marc Triscone, the Europhysics Prize of the Condensed Matter Division of the European Physical Society. In 2011 he was elected a fellow of American Physical Society.

References

External links "Harold Y. Hwang Lab". Stanford University.

Worked examples

Example 1 — a first encounter with Harold Y. Hwang

Start with the simplest possible case. Write down what Harold Y. Hwang 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 Harold Y. Hwang 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 Harold Y. Hwang 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 Harold Y. Hwang

In research: Harold Y. Hwang 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 Harold Y. Hwang 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: Harold Y. Hwang is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1970 births, 20th-century American physicists, 21st-century American physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Harold Y. Hwang 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 Harold Y. Hwang in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Harold Y. Hwang 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 Harold Y. Hwang out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Harold Y. Hwang in simple terms?

Harold Yoonsung Hwang (born 4 August 1970 in Pasadena, California) is an American physicist, specializing in materials physics, condensed matter physics, nanoscience, and quantum engineering. Education and career Harold Hwang graduated in 1993 from MIT with B.S. in physics, as well as B.S. and M.S…

Why does Harold Y. Hwang 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 Harold Y. Hwang?

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 Harold Y. Hwang.