Harold Yoonsung Hwang (born 4 August 1970 in

Pasadena Pasadena ( ) is a city in Los Angeles County, California, northeast of downtown Los Angeles. It is the most populous city and the primary cultural center of the San Gabriel Valley. Old Pasadena is the city's original commercial district. Its ...

, 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 Nai Phuan Ong (born 10 September 1948 in Penang, Malaysia) is an American experimental physicist, specializing in "condensed matter physics focusing on topological insulators, Dirac/Weyl semimetals, superconductors and quantum spin liquids." Bi ...

. 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 is a city located in Chiba Prefecture, Japan. , the city had an estimated population of 433,436 in 194,216 households and a population density of 3800 persons per km². The total area of the city is . The name of the city is written with a si ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

, 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 , mottoeng = Freedom of academic culture , established = , type = National university, Public (National) , endowment = ¥ 316 billion (2.4 1000000000 (number), billion USD) , faculty = 3,480 (Teaching Staff) , administrative_staff ...

. 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

magnetoresistance Magnetoresistance is the tendency of a material (often ferromagnetic) to change the value of its electrical resistance in an externally-applied magnetic field. There are a variety of effects that can be called magnetoresistance. Some occur in bulk ...

s. During his time at Bell Laboratories, his team developed methods for studying the "nature and length scales of charge screening in

complex oxide A complex oxide is a chemical compound that contains oxygen and at least two other elements (or oxygen and just one other element that's in at least two oxidation states). Complex oxide materials are notable for their wide range of magnetic and el ...

s" 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 Jochen Mannhart (born 24 April 1960 in Metzingen) is a German physicist. Biography Jochen Mannhart studied physics at the University of Tübingen, Germany, from 1980 to 1986, where he also received his PhD in 1987 and his habilitation in 1994. ...

and Jean-Marc Triscone, the

Europhysics Prize The EPS CMD Europhysics Prize is awarded (currently every 2nd year) since 1975 by the Condensed Matter Division of the European Physical Society, in recognition of recent work (completed in the 5 years preceding the attribution of the award) by one ...

of the Condensed Matter Division of the European Physical Society. In 2011 he was elected a fellow of

American Physical Society The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of k ...

References

External links

* {{DEFAULTSORT:Hwang, Harold Y. 1970 births Living people 20th-century American physicists 21st-century American physicists MIT School of Engineering alumni Princeton University alumni Academic staff of the University of Tokyo Stanford University faculty Riken personnel Scientists at Bell Labs Fellows of the American Physical Society MIT Department of Physics alumni Recipients of the Ho-Am Prize in Science