不合
发表于 2025-3-23 12:34:27
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潜移默化
发表于 2025-3-23 15:04:57
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Colonnade
发表于 2025-3-23 20:48:10
Introduction, the advent of quantum mechanics, has enabled remarkable progress in our understanding of magnetism. The research efforts still continue at present, for example, in the area of metals with narrow . and/or . bands where the essential importance of the electron-electron correlation poses challenging p
GRACE
发表于 2025-3-24 01:10:01
Mean-Field Theory of Itinerant Electron Magnetism,y, which originates from . work on nickel . A single-band version of this model is called the Hubbard model. This chapter first presents these model Hamiltonians and then proceeds to the Slater-Stoner theory of ferromagnetism and the Slater-Overhauser theory of antiferromagnetism and spin densi
背书
发表于 2025-3-24 02:21:08
Dynamical Mean-Field Theory of Spin Fluctuations, an electron and a hole thus produced are assumed to move independently in a common static mean field. The resulting spin density fluctuation has generally a small amplitude and the thermal excitation is underestimated. To be more realistic we have to take into account the scattering of electron-hol
–吃
发表于 2025-3-24 09:23:50
Self-Consistent Renormalization (SCR) Theory of Spin Fluctuations,ergy of the thermal equilibrium state. Such a renormalization effect is conveniently treated by starting with a formally exact expression for the free energy of an interacting electron system, given in terms of the dynamical susceptibilities through the coupling constant integral (Sect. 4.1).
玉米棒子
发表于 2025-3-24 12:00:04
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Stable-Angina
发表于 2025-3-24 18:47:57
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加花粗鄙人
发表于 2025-3-24 22:45:33
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entice
发表于 2025-3-25 03:04:32
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