Charles Kittel

Charles Kittel
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Name	Charles Kittel
Birth date	October 18, 1916
Birth place	New York City
Death date	May 15, 2019
Death place	Berkeley, California
Nationality	American
Fields	Physics
Institutions	University of California, Berkeley, Massachusetts Institute of Technology, Harvard University, Bell Labs
Alma mater	Harvard University, University of Wisconsin–Madison
Doctoral advisor	John Hasbrouck Van Vleck
Known for	Magnetic resonance, ferromagnetism, solid state physics, textbook on solid state physics

Charles Kittel was an American physicist noted for fundamental work in magnetism and the development of modern solid state physics during the twentieth century. He combined experimental insight and theoretical analysis to influence research at institutions such as University of California, Berkeley, Harvard University, and Bell Labs, and authored a widely used textbook that shaped generations of physicists in the United States, United Kingdom, and beyond.

Early life and education

Kittel was born in New York City and grew up during the era of the Roaring Twenties and the Great Depression. He studied at Harvard University for his undergraduate work and completed graduate studies at the University of Wisconsin–Madison, where he earned a Ph.D. under the supervision of John Hasbrouck Van Vleck, a future Nobel Laureate. During his formation he interacted with figures associated with quantum mechanics schools centered at Cambridge University, University of Göttingen, and Princeton University, and he became conversant with developments from laboratories such as Bell Labs and theoretical circles including Institute for Advanced Study.

Academic career and positions

Kittel held faculty and research positions at multiple prominent institutions. Early in his career he was associated with Harvard University and worked on wartime projects connected to Massachusetts Institute of Technology (MIT) laboratories. After World War II he joined the faculty of the University of California, Berkeley, where he served alongside colleagues from the Lawrence Berkeley National Laboratory and cooperated with researchers at Stanford University and California Institute of Technology. He also spent periods of collaboration with industrial laboratories such as Bell Labs and visiting appointments at international centers including Cavendish Laboratory and institutions in France, Germany, and Japan. At Berkeley he contributed to departmental leadership and mentored students who later joined faculties at MIT, Princeton University, Columbia University, Cornell University, and Yale University.

Contributions to condensed matter physics

Kittel made significant contributions to the understanding of ferromagnetism, antiferromagnetism, spin waves, and magnetic resonance phenomena. He developed theoretical treatments of magnon dispersion relations and contributed to the theory of ferromagnetic resonance that linked experiments from groups at Bell Labs, Carnegie Institution for Science, and Niels Bohr Institute to quantum models from Werner Heisenberg and Lev Landau. Kittel's analyses clarified the role of exchange interactions described originally by Heisenberg exchange interaction and advanced the application of Bloch's theorem and Brillouin zone concepts to real materials studied at facilities such as Argonne National Laboratory and Oak Ridge National Laboratory. He investigated impurity states and electron behavior in metals building on work by Felix Bloch, Enrico Fermi, and Lev Davidovich Landau, and his perspectives influenced later developments in topics pursued at IBM Research, Bell Labs, and university condensed matter groups, including research on spintronics and magnetoresistance taken up at University of Cambridge and ETH Zurich.

Textbooks and pedagogical impact

Kittel authored a landmark textbook, commonly known as "Kittel," that became a standard in solid state physics courses at universities such as University of California, Berkeley, Massachusetts Institute of Technology, Harvard University, University of Oxford, and University of Tokyo. The book synthesized results from researchers including Felix Bloch, Ernest Ising, P. W. Anderson, and Walter Kohn, and presented topics spanning crystal structures, band theory, phonons, and magnetism. His pedagogical style influenced curricula in departments across United States, United Kingdom, France, Germany, Japan, and India, and shaped generations of scientists who later worked at institutions such as Bell Labs, IBM Research, Los Alamos National Laboratory, and Max Planck Society laboratories. Editions of the textbook referenced experiments from groups at Brookhaven National Laboratory and theoretical advances tied to Dirac Prize-level contributors, establishing Kittel as a major educator in twentieth-century physics.

Honors and awards

Kittel received recognition from major scientific organizations and prize committees. He was elected to the National Academy of Sciences and the American Academy of Arts and Sciences, and he received honors from societies including the American Physical Society and the Royal Society in the form of invited lectures and honorary associations. His work was celebrated at conferences held by entities such as International Union of Pure and Applied Physics and at symposia organized by Materials Research Society and American Association for the Advancement of Science. He was awarded distinctions reflecting lifetime achievement comparable to recipients of prizes like the Buckley Prize and the Wolf Prize in Physics and was cited in commemorative volumes alongside Nobel Laureates and leaders from institutions including Lawrence Berkeley National Laboratory and Caltech.

Category:American physicists Category:Condensed matter physicists Category:University of California, Berkeley faculty