We study the temperature T and the phase of the Josephson critical current I(φ)by taking into account theroughness scattering effect at inerface in an f-wave superconductor(S)/Insulator layer(I)/f-wave superconductor...We study the temperature T and the phase of the Josephson critical current I(φ)by taking into account theroughness scattering effect at inerface in an f-wave superconductor(S)/Insulator layer(I)/f-wave superconductor(S)junction.It is found that the Josephson critical currents in f-wave S/f-wave S,the barrier strength and the roughnessstrength at inerface always suppress the Andreev reflection.When α=β,the phase dependence of the Josephson currentI(φ)between two f-wave S is predicted to be simφ;particularly,when α≠β,the phase dependence of the Josephsoncurrent I(φ)between two f-wave superconductors is not predicted to be sin φ and with the barrier strength increasing,the period of the I((φ)turns decrease.展开更多
在超导体 铁磁体 绝缘层 超导体结 (S F I S)中 ,运用Bogoliubov deGennes(BdG)方程和Furusaki Tsukada(FT)电流公式 ,计算铁磁超导共存态的自洽方程和S F I S结中的直流Josephson电流 .研究表明 ,铁磁超导态的磁交换能h对准粒子的An...在超导体 铁磁体 绝缘层 超导体结 (S F I S)中 ,运用Bogoliubov deGennes(BdG)方程和Furusaki Tsukada(FT)电流公式 ,计算铁磁超导共存态的自洽方程和S F I S结中的直流Josephson电流 .研究表明 ,铁磁超导态的磁交换能h对准粒子的Andreev反射有抑制作用 ,使得S F I展开更多
基金Supported by the"333"Project Funds of Jiangsu Province of China,the National Natural Science Foundation of China under Grant No.20571029by the Program for Excellent Talents in Huangshi Institute of Technology
文摘We study the temperature T and the phase of the Josephson critical current I(φ)by taking into account theroughness scattering effect at inerface in an f-wave superconductor(S)/Insulator layer(I)/f-wave superconductor(S)junction.It is found that the Josephson critical currents in f-wave S/f-wave S,the barrier strength and the roughnessstrength at inerface always suppress the Andreev reflection.When α=β,the phase dependence of the Josephson currentI(φ)between two f-wave S is predicted to be simφ;particularly,when α≠β,the phase dependence of the Josephsoncurrent I(φ)between two f-wave superconductors is not predicted to be sin φ and with the barrier strength increasing,the period of the I((φ)turns decrease.
文摘在超导体 铁磁体 绝缘层 超导体结 (S F I S)中 ,运用Bogoliubov deGennes(BdG)方程和Furusaki Tsukada(FT)电流公式 ,计算铁磁超导共存态的自洽方程和S F I S结中的直流Josephson电流 .研究表明 ,铁磁超导态的磁交换能h对准粒子的Andreev反射有抑制作用 ,使得S F I
