Reflectivity and microwave absorption in crystals with alternating intrinsic Josephson junctions.
Reflectivity and microwave absorption in crystals with alternating intrinsic Josephson junctions.
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具有交替本征约瑟夫森结的晶体的反射率和微波吸收。
DOI:
10.1103/physrevlett.89.057003
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发表时间:
2001
影响因子:
8.6
通讯作者:
M. Maley
中科院分区:
文献类型:
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作者:
C. Helm;L. Bulaevskii;E. Chudnovsky;M. Maley
We compute the frequency and magnetic field dependencies of the reflectivity R(omega) in layered superconductors with two alternating intrinsic Josephson junctions with different critical current densities and quasiparticle conductivities for the electric field polarized along the c axis. The parameter alpha describing the electronic compressibility of the layers and the charge coupling of neighboring junctions was extracted for the SmLa1-xSr xCuO (4-delta) superconductor from two independent optical measurements, the fit of the loss function L(omega) at zero magnetic field and the magnetic field dependence of the peak positions in L(omega). The experiments are consistent with a free electron value for alpha.
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