K. Alex Müller

K. Alex Müller
Name	K. Alex Müller
Birth date	20 April 1927
Birth place	Basel, Switzerland
Death date	9 January 2023
Death place	Zurich, Switzerland
Nationality	Swiss
Fields	Physics, Materials Science
Known for	Superconductivity in ceramics
Prizes	Nobel Prize in Physics (1987)

K. Alex Müller was a Swiss physicist and materials scientist notable for the discovery of high-temperature superconductivity in ceramic oxides. His work at IBM Zurich Research Laboratory and later at the University of Zurich transformed research on superconductors, influencing studies spanning Max Planck Society, Bell Labs, Los Alamos National Laboratory, Cambridge University, and industrial laboratories worldwide. His findings reshaped investigations by groups including those at MIT, Stanford University, Harvard University, Columbia University, and ETH Zurich.

Early life and education

Müller was born in Basel and grew up during a period marked by developments at institutions such as University of Basel, ETH Zurich, and the postwar European scientific revival involving figures like Max von Laue, Werner Heisenberg, Niels Bohr, Erwin Schrödinger. He studied physics and electrical engineering at institutions including ETH Zurich and undertook doctoral work influenced by laboratories such as IBM Research – Zurich and researchers like Felix Bloch, Heinz London, Jakob Meier. His formative education connected him intellectually to traditions exemplified by Paul Scherrer Institute and the Swiss scientific community that engaged with colleagues from CERN, Institut Laue–Langevin, and Paul Dirac’s networks.

Scientific career and research

Müller’s research career included long-term association with IBM Research – Zurich where he collaborated in solid-state physics and materials science with scientists whose work intersected with groups at Bell Labs, Argonne National Laboratory, Brookhaven National Laboratory, Los Alamos National Laboratory, and universities such as University of Chicago and Princeton University. His work explored oxides and perovskite structures related to earlier studies by John B. Goodenough, M. Stanley Whittingham, J. P. Remeika and connected to theoretical frameworks by Philip W. Anderson, Yoichiro Nambu, Vladimir L. Ginzburg. Experimental techniques he used echoed methods from X-ray diffraction facilities like European Synchrotron Radiation Facility and analysis approaches used at National Institute of Standards and Technology and Fraunhofer Society centers. His studies on transition-metal oxides engaged with materials also investigated by Georg Bednorz, C. N. R. Rao, Jun Akimitsu, and research programs at Tohoku University and University of Cambridge.

Major discoveries and Nobel Prize

In 1986 Müller, together with Georg Bednorz, discovered superconductivity at elevated temperatures in a lanthanum barium copper oxide perovskite, a breakthrough that catalyzed an international response from laboratories including IBM, Bell Labs, Los Alamos National Laboratory, Rutherford Appleton Laboratory, National High Magnetic Field Laboratory, and universities such as MIT, Stanford University, University of Tokyo, Columbia University, and University of California, Berkeley. Their discovery ignited rapid follow-up work by groups led by figures like Paul Chu, J. Georg Bednorz (note: collaborator), Robert C. Richardson, Clifford Shull and theoretical engagement from P. W. Anderson, Philip Anderson, Alexei Abrikosov, John Bardeen schools of thought. For this achievement Müller and Bednorz were awarded the Nobel Prize in Physics in 1987, an honor shared in the broader superconductivity community with historical laureates such as Heike Kamerlingh Onnes and Brian Josephson.

Academic positions and affiliations

Müller held positions at IBM Research – Zurich and later at the University of Zurich where he served as a professor and mentor to students who moved on to institutions including ETH Zurich, University of Geneva, École Polytechnique Fédérale de Lausanne, Imperial College London, University of Oxford, and Harvard University. He participated in international collaborations with research centers such as CERN, Paul Scherrer Institute, Max Planck Institute for Solid State Research, Riken, and networks spanning European Space Agency and national laboratories like Argonne National Laboratory and Oak Ridge National Laboratory.

Awards and honors

Beyond the Nobel Prize in Physics, Müller received multiple recognitions from organizations including the Royal Society, National Academy of Sciences, American Physical Society, German Physical Society, and European academies like the Académie des Sciences (France). His work was acknowledged by awards associated with bodies such as Royal Society of London, Deutsche Forschungsgemeinschaft, European Research Council, and prizes historically linked to figures such as Albert Einstein, Wolfgang Pauli, and Max Planck. He was elected to academies comparable to Swiss Academies of Arts and Sciences and received honorary degrees from universities including University of Cambridge, ETH Zurich, University of Paris, and University of Tokyo.

Personal life and legacy

Müller’s legacy influenced generations of condensed-matter physicists working at institutions such as MIT, Stanford University, University of California, Berkeley, Columbia University, University of Cambridge, ETH Zurich, and national laboratories including Los Alamos National Laboratory and Brookhaven National Laboratory. His discovery reshaped research agendas at funding agencies like National Science Foundation, European Commission, and national research councils, and inspired applied programs in superconducting technologies at companies such as Siemens, General Electric, Hitachi, and IBM. Colleagues and successors include Georg Bednorz, Paul Chu, J. Georg Bednorz (note: collaborator), Clifford Shull, and members of the Nobel Committee for Physics who continue to assess breakthroughs in condensed matter physics and materials science.

Category:Swiss physicists Category:Nobel laureates in Physics Category:1927 births Category:2023 deaths