Van Vleck, John Hasbrouck
John Hasbrouck Van Vleck, 1899–1980, American physicist, b. Middletown, Conn., Ph.D. Harvard, 1922. As a professor at Harvard, Van Vleck developed fundamental theories on the quantum mechanics of magnetism and on molecular bonding (ligand field theory). For his contributions to the understanding of electrons in magnetic, noncrystalline solids, Van Vleck was awarded the 1977 Nobel Prize in Physics, along with Philip W. Anderson and Sir Nevill Mott.
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"Van Vleck, John Hasbrouck." The Columbia Encyclopedia, 6th ed.. . Retrieved April 19, 2019 from Encyclopedia.com: https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/van-vleck-john-hasbrouck
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Van Vleck, John
"Van Vleck, John." World Encyclopedia. . Encyclopedia.com. (April 19, 2019). https://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/van-vleck-john
"Van Vleck, John." World Encyclopedia. . Retrieved April 19, 2019 from Encyclopedia.com: https://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/van-vleck-john