独行者
发表于 2025-3-28 14:49:18
Spectacular Advances,t and independent new field. In addition to X-ray diffraction, new analytical tools such as neutron diffraction, electron microscopy, different versions of mechanical scanning techniques, and scanning electron and laser microscopy became available. Material fatigue, radiation damage, and the prepara
Cloudburst
发表于 2025-3-28 22:00:02
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ironic
发表于 2025-3-29 02:07:32
Permanent Movement in the Crystal Lattice,st by Albert Einstein, the energy spectrum of the phonons is given by Planck’s radiation law, resulting in a distinct deviation from the classic law of Dulong and Petit. Subsequently, the Einstein model, based on a single phonon frequency, was extended by Peter Debye by including the complete phonon
变白
发表于 2025-3-29 04:01:52
Metals Obey the Rules of Quantum Statistics,statistics and the Fermi distribution of the electron energies turned into the key for the electronic theory of metals, including the important concept of the Fermi surface in momentum space. Over a wide temperature range the electronic transport properties of metals are dominated by the interaction
habile
发表于 2025-3-29 11:11:56
Less Can Be More: Semiconductors, conduction band, we deal with a semiconductor, such as germanium or silicon, or the compound semiconductors consisting of elements of the third and the fifth column of the Periodic Table (or of the second and the sixth column). The carefully controlled doping with donors and acceptors yields materi
欢笑
发表于 2025-3-29 12:50:10
Circling Electrons in High Magnetic Fields,. This deflection causes an increase in the electric resistance and the generation of the Hall voltage transverse to the current flow in the conductor. The orbital motion corresponds to a redistribution of the electrons in the conduction band onto Landau cylinders in momentum space. At high magnetic
PHON
发表于 2025-3-29 18:53:41
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Harness
发表于 2025-3-29 20:44:00
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FLOAT
发表于 2025-3-30 01:35:43
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GONG
发表于 2025-3-30 06:19:10
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