Jochen Mannhart

Jochen Mannhart
Jochen Mannhart
Born	April 24, 1960 (age 66); Metzingen, Germany
Occupation	Physicist
Years active	1980–present
Known for	Research in solid-state physics, oxide interfaces, superconductivity, Thermal Laser Epitaxy (TLE)

Jochen Mannhart (born 24 April 1960 in Metzingen) is a physicist from Germany.

Biography

From 1980 until 1986, Jochen Mannhart pursued his physics studies at the University of Tübingen, where he completed his doctorate in 1987 and later achieved habilitation in 1994.

Between 1987 and 1989, he served as a visiting researcher at the IBM Thomas J. Watson Research Center. Subsequently, from 1989 to 1996, he was part of the research staff and led the New Materials and Heterostructures group at the IBM Zurich Research Laboratory. Mannhart held a chaired professorship at the Center for Electronic Correlations and Magnetism at the University of Augsburg from 1996 to 2011. Since 2011, he has been directing the Solid State Quantum Electronics division at the Max Planck Institute for Solid State Research located in Stuttgart.

Prizes and awards

In recognition of his experimental contributions to solid-state physics, Mannhart was honored with the 2014 Europhysics Prize by the European Physical Society and received the prestigious Gottfried Wilhelm Leibniz Prize from the Deutsche Forschungsgemeinschaft in 2008, which included funding amounting to 2.5 million euros. Earlier, in 1986, he was awarded the Friedrich Forster Prize by his alma mater, the University of Tübingen.

Research

Mannhart’s research centers on innovative all-oxide field-effect transistors that facilitate phase transitions such as interface superconductivity. His team engineered a high-performance scanning probe microscope capable of achieving a resolution down to 77 picometers, enabling subatomic-level imaging to analyze atomic-scale friction phenomena. Working alongside P. Chaudhari and D. Dimos, he established that grain boundary alignment is essential for producing high-temperature superconductors with viable critical currents, thereby advancing technologies like high-T_c superconducting cables. In 2019, his group pioneered Thermal Laser Epitaxy (TLE), an epitaxial growth technique employing continuous-wave lasers for material evaporation during film deposition. Additionally, Mannhart’s investigations extend into thermoelectronic generator systems.

Key publications

Li, Lu; Richter, C.; Paetel, S.; Kopp, T.; Mannhart, J.; Ashoori, R. C. Very Large Capacitance Enhancement in a Two-Dimensional Electron System, Science, 332(6031), 13 May 2011, pp. 825–828.
Mannhart, J.; Schlom, D. G. Oxide Interfaces—An Opportunity for Electronics, Science, 327(5973), 26 March 2010, pp. 1607–1611.
Cen, Cheng; Thiel, Stefan; Mannhart, Jochen; Levy, Jeremy Oxide Nanoelectronics on Demand, Science, 323(5917), 20 February 2009, pp. 1026–1030.
Loder, F.; Kampf, A. P.; Kopp, T.; Mannhart, J.; Schneider, C. W.; Barash, Y. S. Magnetic flux periodicity of h/e in superconducting loops, Nature Physics, 4(2), 16 December 2007, pp. 112–115.
Reyren, N.; Thiel, S.; Caviglia, A. D.; Kourkoutis, L. Fitting; Hammerl, G.; Richter, C.; Schneider, C. W.; Kopp, T.; Rüetschi, A.-S.; Jaccard, D.; Gabay, M.; Muller, D. A.; Triscone, J.-M.; Mannhart, J. Superconducting Interfaces Between Insulating Oxides, Science, 317(5842), 31 August 2007, pp. 1196–1199.
Thiel, S.; Hammerl, G.; Schmehl, A.; Schneider, C. W.; Mannhart, J. Tunable Quasi-Two-Dimensional Electron Gases in Oxide Heterostructures, Science, 313(5795), 29 September 2006, pp. 1942–1945.
Herz, M.; Giessibl, F. J.; Mannhart, J. Probing the shape of atoms in real space, Physical Review B, 68(4), 1 July 2003.
Giessibl, F. J.; Herz, M.; Mannhart, J. Friction traced to the single atom, Proceedings of the National Academy of Sciences, 99(19), 27 August 2002, pp. 12006–12010.
Giessibl, Franz J.; Hembacher, S.; Bielefeldt, H.; Mannhart, J. Subatomic Features on the Silicon (111)-(7×7) Surface Observed by Atomic Force Microscopy, Science, 289(5478), 21 July 2000, pp. 422–425.
Dimos, D.; Chaudhari, P.; Mannhart, J.; LeGoues, F. K. Orientation Dependence of Grain-Boundary Critical Currents in YBa2Cu3O7−δ Bicrystals, Physical Review Letters, 61(2), 11 July 1988.
Mannhart, J.; Bosch, J.; Gross, R.; Huebener R. P. Two-dimensional imaging of trapped magnetic flux quanta in Josephson tunnel junctions, Physical Review B, 35(10), 1 April 1987.
Braun, Wolfgang; Mannhart Jochen Film deposition by thermal laser evaporation, AIP Advances, 9(8), August 2019.

External links

Department of Solid State Quantum Electronics at the Max Planck Institute for Solid State Research