Views
10 months ago

978-1-940366-36-4_WholeBook

Boris V. Vasiliev Supercondustivity Superfluidity

Superconductivity and

Superconductivity and Superfluidity It is in consistent with the measured value of the velocity of the first sound in helium, which has the maximum value of 238.3 m/s at T → 0 and decreases with increasing temperature up to about 220 m/s at T = T λ . The results obtained in this section are summarized for clarity in the Table 11.1. The measurement data in this table are mainly quoted by [55] and [57]. 114 Science Publishing Group

Chapter 11 Superfluidity as a Subsequence of Ordering of Zero-Point Oscillations Table 11.1 Comparison of the calculated values of liquid helium-4 with the measurement data. parameter defining formula calculated value measured value the velocity of zero-point oscillations of ̂v 0 = cα 3 116.5 helium atom The density of atoms √ in liquid n = M 4 α 2 2m e a 3 B m/s 2.172 · 10 22 helium atom/cm 3 The density of liquid helium-4 γ = M 4n 144.3 145 T ≃Tλ g/l The dielectric 1.048 T ≃4.2 √ ε−1 constant = 4π ε+2 3 α2 M 4 2m e 1.040 of liquid helium-4 1.057 T ≃Tλ The temperature T λ ≃ M 4c 2 α 6 3 2.177 2.172 λ-point,K The boiling temperature T boil ≃ 2T λ 4.35 4.21 of helium-4,K The first sound velocity, c s1 = 2 ̂v 0 233 238.3 T →0 m/s Science Publishing Group 115

VbvNeuE-001
VbvAstE-001
1 - Nuclear Sciences and Applications - IAEA
5 Superconductivity 1 6 Ginzburg-Landau Theory 33
Superconductivity and Quantum Coherence
Superconductivity as observed by Magnetic Resonance - F9 - IJS
Superconductivity - Desy
Carsten Timm: Theory of superconductivity
Vitaly L. Ginzburg - Nobel Lecture - Nobelprize.org
Solutions to the problems in Chapter 27
Problem Set [pdf]
Superconductor
Superconductivity
The essence of superconductivity and superconductors.
Seminar Iron Pnictide Superconductors
Report - Psi-k