| 11. | An extension of this method that allows for internal magnetic charges is used in theories of ferromagnetism.
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| 12. | Tonks was employed by General Electric for most of his working life, researching microwaves and ferromagnetism.
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| 13. | Ferromagnetism requires electron spins to align, while superconductivity typically requires electron spins to anti-align.
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| 14. | Early investigations studied the coexistence of conventional " s "-wave superconductivity with itinerant ferromagnetism.
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| 15. | A mean-field model for coexistence of spin-triplet pairing and ferromagnetism was developed in 2005,
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| 16. | Since 1948 in collaboration with Nikolay Bogoliubov he started to work on quantum theory of ferromagnetism and antiferromagnetism.
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| 17. | Compounds at temperatures below the Curie temperature exhibit long-range magnetic order in the form of ferromagnetism.
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| 18. | The compound has the unusual property of ferromagnetism, but only if the temperature is below 14 K.
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| 19. | Well known examples include the condensation of the Higgs boson in particle physics, and ferromagnetism in condensed matter physics.
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| 20. | In his first paper published from Leipzig, Heisenberg used the Pauli exclusion principle to solve the mystery of ferromagnetism.
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