Journal
PHYSICAL REVIEW LETTERS
Volume 107, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.087001
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Funding
- KAKENHI on Innovative Areas Topological Quantum Phenomena'' [22103002]
- RFBR [11-02-00077-a]
- Russian Federal Agency of Education and Science [P799]
- RAS
- Grants-in-Aid for Scientific Research [22540355] Funding Source: KAKEN
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We discuss the dynamic response of odd-frequency Cooper pairs to an electromagnetic field. By using the quasiclassical Green function method, we calculate the impedance (Z = R - iX) of a normal-metal thin film which covers a superconductor. In contrast with the standard relation ( i.e., R << X), the impedance in spin-triplet proximity structures shows anomalous behavior ( i.e., R > X) in the low frequency limit. This unusual relation is a result of the penetration of odd-frequency pairs into the normal metal and reflects the negative Cooper pair density.
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