Remarks on the Isotopic Volume Effect in Superconductors
スポンサーリンク
概要
- 論文の詳細を見る
One possible manner in which the change in isotopic volume contributes to the isotope effect in superconductors is discussed with relation to the empirical formula of Olsen et al., α=0.25+0.1φ, which represents a relation between the exponent α in T_c∞M^<-α> and the volume dependence of the transition temperature, φ=∂ln[T_c/θ]/∂lnV・{ln(0.85θ/T_c)^<-1>. Here, the volume effect being taken into consideration, α is expressed in terms of the mass and volume effects of the Debye temperatureθand those of the phonon mediated electron-electron interaction N(0)J in the BCS relation. In addition to this, the limitations of the argument concerning the relation between the isotope effect and the volume dependence of the transition temperature are briefly examined in connection with the isotopic volume in some isotopic compounds.
- 東北大学の論文
著者
-
Nakajima Tetsuo
The Research Institute For Iron Steel And Other Metals Tohoku University
-
Nakajima Tetsuo
The Research Institute For Iron Steel And Other Metals
関連論文
- Heat Capacity of (C_nH_NH_3)_2FeCl_4; n=1 and n=2
- Nonlinear Pressure Dependence of the Superconducting Transition Temperature of Copper Sulfide Cus
- Nonlinear Pressure Dependence of the Superconducting Transition Temperature of Copper Sulfide CuS
- A High Pressure Anvil Used for ac Magnetic Susceptibility Measurement at Low Temperature
- On the Mass and Volume Dependences of the Electron-Electron Interaction in Superconductors
- Remarks on the Isotopic Volume Effect in Superconductors
- Contributions to the Isotopic Volume Effect in the Weak Itinerant Ferromagnet ZrZn_2
- Two Phase Transition of TbPO_4 at Low Temperatures
- Magneto-Volume Effect in the Weak Itinerant Ferromagnet MnSi
- Remarks on the Isotopic Volume Effect in Superconductors
- Low-Field de Haas-van Alphen Effect in LaB_6
- On the Mass and Volume Dependences of the Electron-Electron Interaction in Superconductors
- Carrier Density Dependences of the Superconducting Transitions in n-Type In_xSn_Te_
- Superconducting Transition of In_xSn_Te_