Jochen Mannhart (born 24 April 1960 in
Metzingen
Metzingen () is a Swabian city with about 22,000 inhabitants, in Reutlingen county, Baden-Württemberg, Germany, south of Stuttgart. Geography
The following towns and municipalities are on the borders of Metzingen, they are named starting in ...
) is a German
physicist
A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe.
Physicists generally are interested in the root or ultimate caus ...
.
Biography
Jochen Mannhart studied physics at the
University of Tübingen
The University of Tübingen, officially the Eberhard Karl University of Tübingen (german: Eberhard Karls Universität Tübingen; la, Universitas Eberhardina Carolina), is a public research university located in the city of Tübingen, Baden-Wü ...
, Germany, from 1980 to 1986, where he also received his PhD in 1987 and his habilitation in 1994.
From 1987 to 1989, he was a visiting scientist at the
IBM Thomas J. Watson Research Center
The Thomas J. Watson Research Center is the headquarters for IBM Research. The center comprises three sites, with its main laboratory in Yorktown Heights, New York, U.S., 38 miles (61 km) north of New York City, Albany, New York and with ...
in Yorktown Heights, NY. From 1989 to 1996, he was a Research Staff Member at the
IBM Zurich Research Laboratory
IBM Research is the research and development division for IBM, an American multinational information technology company headquartered in Armonk, New York, with operations in over 170 countries. IBM Research is the largest industrial research or ...
, where he was manager of the New Materials and Heterostructures research group. From 1996 to 2011, he was a chaired professor at the Center for Electronic Correlations and Magnetism at the
University of Augsburg
The University of Augsburg (german: Universität Augsburg) is a university located in the Universitätsviertel section of Augsburg, Germany. It was founded in 1970 and is organized in 8 Faculties.
The University of Augsburg is a relatively you ...
,
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
.
Since the summer of 2011, he has been a director of the
Max Planck Institute for Solid State Research
The Max Planck Institute for Solid State Research (German: ''Max-Planck-Institut für Festkörperforschung'') was founded in 1969 and is one of the 82 Max Planck Institutes of the Max Planck Society. It is located on a campus in Stuttgart, togeth ...
in
Stuttgart
Stuttgart (; Swabian: ; ) is the capital and largest city of the German state of Baden-Württemberg. It is located on the Neckar river in a fertile valley known as the ''Stuttgarter Kessel'' (Stuttgart Cauldron) and lies an hour from the ...
, where he is head of the Solid State Quantum Electronics department.
Prizes and awards
The 2014
European Physical Society
The European Physical Society (EPS) is a non-profit organisation whose purpose is to promote physics and physicists in Europe through methods such as physics outreach. Formally established in 1968, its membership includes the national physical so ...
Condensed Matter Division
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 ...
is awarded to Jochen Mannhart.
He was the 2008 recipient of the
Gottfried Wilhelm Leibniz Prize
The Gottfried Wilhelm Leibniz Prize (german: link=no, Förderpreis für deutsche Wissenschaftler im Gottfried Wilhelm Leibniz-Programm der Deutschen Forschungsgemeinschaft), in short Leibniz Prize, is awarded by the German Research Foundation to ...
of the
Deutsche Forschungsgemeinschaft
The German Research Foundation (german: Deutsche Forschungsgemeinschaft ; DFG ) is a German research funding organization, which functions as a self-governing institution for the promotion of science and research in the Federal Republic of Germ ...
(German Research Society, DFG), award endowment 2.5 million euros, for his research in the field of experimental solid-state physics. In 1986, he received the
Friedrich Forster Prize of the
University of Tübingen
The University of Tübingen, officially the Eberhard Karl University of Tübingen (german: Eberhard Karls Universität Tübingen; la, Universitas Eberhardina Carolina), is a public research university located in the city of Tübingen, Baden-Wü ...
,
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
.
Research
Mannhart’s research includes the fabrication of novel all-oxide
field-effect transistors
The field-effect transistor (FET) is a type of transistor that uses an electric field to control the flow of current in a semiconductor. FETs (JFETs or MOSFETs) are devices with three terminals: ''source'', ''gate'', and ''drain''. FETs contr ...
, in which phase changes can be switched at interface layers, including phase changes to superconductivity. Under his leadership, his research group has developed an improved
scanning probe microscope
Scan may refer to:
Acronyms
* Schedules for Clinical Assessment in Neuropsychiatry (SCAN), a psychiatric diagnostic tool developed by WHO
* Shared Check Authorization Network (SCAN), a database of bad check writers and collection agency for bad ...
(frequency-modulated lateral force microscopy), which features a resolution of 77
picometers
The picometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the International System of Units (SI), equal to , or one trillionth of ...
. With this instrument, his group succeeded in imaging individual atoms with subatomic resolution, which was used, for example, to investigate the atomic mechanism of friction. With P. Chaudhari and D. Dimos, J. Mannhart revealed that grain alignment is key to the fabrication of
high-temperature superconductors
High-temperature superconductors (abbreviated high-c or HTS) are defined as materials that behave as superconductors at temperatures above , the boiling point of liquid nitrogen. The adjective "high temperature" is only in respect to previo ...
with useful critical currents, so that they are suitable for practical applications such as modern high-''T''
c superconducting cables. In 2019, his group discovered
Thermal Laser Epitaxy Thermal laser epitaxy (TLE) is a physical vapor deposition technique that utilizes irradiation from continuous-wave lasers to heat sources locally for growing thin films , films on a substrate. This technique can be performed under ultra-high vacuu ...
(TLE), a new
epitaxy
Epitaxy refers to a type of crystal growth or material deposition in which new crystalline layers are formed with one or more well-defined orientations with respect to the crystalline seed layer. The deposited crystalline film is called an epit ...
technique that uses continuous-wave
laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The fir ...
to evaporate sources of material which then condense upon a substrate.
Another research area is thermoelectronic generators.
Key Publications
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References
External links
Solid State Quantum Electronics departmentat th
Max Planck Institute for Solid State Research*
{{DEFAULTSORT:Mannhart, Jochen
Living people
1960 births
21st-century German physicists
Scientists from Baden-Württemberg
Max Planck Institute directors
University of Tübingen alumni
Academic staff of the University of Augsburg
IBM people
Fellows of the American Physical Society