Carson Dunning Jeffries (March 22, 1922 – October 18, 1995) was an

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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 ...

.National Academies Press:Biographical Memoirs V.73 (1998) Carson Dunning Jeffries, BY WALTER KNIGHT, JOHN REYNOLDS, ERWIN HAHN, AND ALAN PORTIS
/ref>University of California, In memoriam, Carson Dunning Jeffries, 1922-1995, Professor of Physics
/ref> The

National Academies Press The US National Academies Press (NAP) was created to publish the reports issued by the National Academies of Sciences, Engineering, and Medicine, the National Academy of Engineering, the National Academy of Medicine, and the National Research C ...

said that Jeffries "made major fundamental contributions to knowledge of

nuclear magnetism Nuclear may refer to: Physics Relating to the nucleus of the atom: * Nuclear engineering *Nuclear physics *Nuclear power *Nuclear reactor *Nuclear weapon *Nuclear medicine *Radiation therapy *Nuclear warfare Mathematics *Nuclear space *Nuclear ...

, electronic spin relaxation,

dynamic nuclear polarization Dynamic nuclear polarization (DNP) results from transferring spin polarization from electrons to nuclei, thereby aligning the nuclear spins to the extent that electron spins are aligned. Note that the alignment of electron spins at a given magnetic ...

electron-hole droplets Electron-hole droplets are a condensed phase of excitons in semiconductors. The droplets are formed at low temperatures and high exciton densities, the latter of which can be created with intense optical excitation or electronic excitation in a p-n ...

, nonlinear dynamics and chaos, and high-temperature superconductors." He was noted for being the first to observe the isotropic spin-spin exchange interaction in metals (also known as the Ruderman-Kittel interaction). He also discovered methods for the dynamic nuclear polarization by saturation of forbidden microwave resonance transitions in solids. He also discovered the existence of giant electron-hole droplets in semiconductors. He was a member of the U.S.

National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nati ...

and the

American Academy of Arts and Sciences The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and ...

Life and career

Jeffries was born in Lake Charles, Louisiana. Jeffries graduated from

Louisiana State University Louisiana State University (officially Louisiana State University and Agricultural and Mechanical College, commonly referred to as LSU) is a public land-grant research university in Baton Rouge, Louisiana. The university was founded in 1860 nea ...

in 1943 with a B.S. degree, and received his doctorate from

Stanford University Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is consider ...

in 1951 where his advisor was Felix Bloch. He joined the faculty of the

University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...

in 1952 and stayed there for his entire career. Known students of the 35 whose dissertations he advised are R Victor Jones and Robert Moore Westervelt, both professors at

Harvard Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher le ...

References

{{DEFAULTSORT:Jeffries, Carson D. 1922 births 1995 deaths 20th-century American physicists Members of the United States National Academy of Sciences Stanford University alumni University of California, Berkeley College of Letters and Science faculty Fellows of the American Physical Society Louisiana State University alumni

Life and career

See also

References