RT Journal Article
T1 Spin pumping in 𝑑-wave superconductor-ferromagnet hybrids
A1 Carreira, Santiago
A1 Sanchez-Manzano, David
A1 Yoo, M.-W.
A1 Seurre, Kevin
A1 Rouco, V.
A1 Sander, A.
A1 Santamaría Sánchez-Barriga, Jacobo
A1 Anane, A.
A1 Villegas, J.E.
AB Spin pumping across ferromagnet/superconductor (F/S) interfaces has attracted much attention lately, yet the focus has been mainly on 𝑠-wave superconductor based systems whereas (high-temperature) 𝑑-wave superconductors such as Y⁢Ba2⁢Cu3⁢O7−d (YBCO) have received scarce attention despite their fundamental and technological interest. Here we use wideband ferromagnetic resonance to study spin-pumping effects in bilayers that combine a soft metallic Ni80⁢Fe20 (Py) ferromagnet and YBCO. We evaluate the spin conductance in YBCO by analyzing the magnetization dynamics in Py. We find that the Gilbert damping exhibits a drastic drop as the heterostructures are cooled across the normal-superconducting transition and then, depending on the S/F interface morphology, either stays constant or shows a strong upturn. This unique behavior is explained considering quasiparticle density of states at the YBCO surface, and is a direct consequence of zero-gap nodes for particular directions in the momentum space. Besides showing the fingerprint of 𝑑-wave superconductivity in spin pumping, our results demonstrate the potential of high-temperature superconductors for fine tuning of the magnetization dynamics in ferromagnets using 𝑘-space degrees of freedom of 𝑑-wave/F interfaces.
PB American Physical Society
SN 2469-9950
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/114357
UL https://hdl.handle.net/20.500.14352/114357
LA eng
NO S. J. Carreira, D. Sanchez-Manzano, M.-W. Yoo, K. Seurre, V. Rouco, A. Sander, J. Santamaría, A. Anane, and J. E. Villegas, Spin pumping in d -wave superconductor-ferromagnet hybrids, Phys. Rev. B 104, 144428 (2021).
NO Grant No. 647100 “SUSPINTRONICS,”Grant No. ANR-15CE24-0008-01 “SUPERTRONICS,”CA-16218MSCA-890964 “SUPER-MAGNONICS”.
NO European Commission
NO Agence Nationale de la Recherche (France)
DS Docta Complutense
RD 13 abr 2025