CAJ | 학술논문

利用推广的Blonder-Tinkham-Klapwijk理论研究讨论了石墨层上铁磁体/p波超导体隧道结中准粒子输运过程，计算了结的微分电导.研究结果表明，有限温度下，α=0时电导峰对应的偏压位置在eV=Δ0处，而α=2π3时，电导峰对应的偏压位置移动到eV=0．5Δ0附近.磁交换能Eh <EF 时，微分电导随着磁交换能的增强而降低，在Eh =EF 时微分电导为最小， Eh>EF时微分电导随着磁交换能的增强而升高，微分电导随温度的增大而减小.
이용추엄적Blonder-Tinkham-Klapwijk이론연구토론료석묵층상철자체/p파초도체수도결중준입자수운과정，계산료결적미분전도.연구결과표명，유한온도하，α=0시전도봉대응적편압위치재eV=Δ0처，이α=2π3시，전도봉대응적편압위치이동도eV=0．5Δ0부근.자교환능Eh <EF 시，미분전도수착자교환능적증강이강저，재Eh =EF 시미분전도위최소， Eh>EF시미분전도수착자교환능적증강이승고，미분전도수온도적증대이감소.
Using the extended Blonder-Tinkham-Klapwijk formalism, we investigate the conductance spectra of graphene ferromagnet/p wave superconductor junctions at finite temperature. It is found that the conduct-ance spectra at finite temperature are affected by the p wave pairing symmetry. The ferromagnetic exchange energy in the ferromagnet can suppress Andreev retroreflection but enhance the specular Andreev reflection in graphene ferromagnet/p wave superconductor junctions. The conductance decreases at finite temperature with increasing exchange energy Eh for Eh<EF(the Fermi energy in the ferromagnet region), but the conductance increases with increasing exchange energy Eh for Eh>EF.