Alveolar-Bone
发表于 2025-3-26 21:32:47
The potential ,; many-body effects,hoice of .(.) is itself a subtle and difficult problem, because (4.1) is only an approximation to a much more complicated equation, and .(.) has to be chosen in such a way as to make the approximation as good as possible. It is worth looking briefly at this more complicated equation, just to see wha
渗透
发表于 2025-3-27 01:28:04
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Peristalsis
发表于 2025-3-27 05:50:08
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Sinus-Node
发表于 2025-3-27 09:40:15
Magnetoresistance and Hall Effect,esistance: ρ(.) > ρ(0). The longitudinal magneto resistance, ρ.(.) (for .∥.) normally saturates at large .; that is, it tends to a constant value not very much greater than ρ(0). The behaviour of the transverse magnetoresistance, ρ.(.) (for .⊥.) is much more varied: in some metals it saturates, like
消耗
发表于 2025-3-27 14:38:01
Radio-Frequency, Optical and Other Properties, At room temperature and above, the properties of real metals are described by essentially the same equations, suitably generalized: in (2.27), for example, σ. will then be given by (9.13), and τ must be replaced by some suitable average if τ. varies with .. But in pure metals at low temperatures an
使迷惑
发表于 2025-3-27 19:29:56
Carriers in Semiconductors,nd the empty conduction bands above ε. (Fig. 5.9). Because of this gap, the number of carriers (electrons and holes) varies rapidly with temperature in a semiconductor, whereas it is essentially temperature-independent in a metal, and our first task is to look at this temperature variation.
Abduct
发表于 2025-3-28 01:25:06
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假
发表于 2025-3-28 02:38:55
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septicemia
发表于 2025-3-28 06:30:01
Book 1990r just why things are the way they are; and sometimes this takes a little longer. I hope that some readers at least will find this approach helpful. 1 The free-electron model 1. 1 THE CLASSICAL DRUDE THEORY The characteristic properties of metals and semiconductors are due to their conduction electr
混乱生活
发表于 2025-3-28 12:28:22
the reader just why things are the way they are; and sometimes this takes a little longer. I hope that some readers at least will find this approach helpful. 1 The free-electron model 1. 1 THE CLASSICAL DRUDE THEORY The characteristic properties of metals and semiconductors are due to their conduction electr978-0-412-36840-0978-94-009-0423-1