Zobrazeno 1 - 10
of 720
pro vyhledávání: '"Robinson, J. W. A."'
Autor:
Anwar, M. S., Nakamura, T., Ishiguro, R., Arif, S., Robinson, J. W. A., Yonezawa, S., Sigrist, M., Maeno, Y.
Publikováno v:
Commun Phys 6, 290 (2023)
Non-reciprocal electronic transport in a material occurs if both time reversal and inversion symmetries are broken. The superconducting diode effect (SDE) is an exotic manifestation of this type of behavior where the critical current for positive and
Externí odkaz:
http://arxiv.org/abs/2211.14626
The difference in the density of states for up- and down-spin electrons in a ferromagnet (F) results in spin-dependent scattering of electrons at a ferromagnet / nonmagnetic (F/N) interface. In a F/N/F spin-valve, this causes a current-independent di
Externí odkaz:
http://arxiv.org/abs/2103.13368
Autor:
Zhao, N., Sud, A., Sukegawa, H., Komori, S., Rogdakis, K., Yamanoi, K., Patchett, J., Robinson, J. W. A., Ciccarelli, C., Kurebayashi, H.
Publikováno v:
Phys. Rev. Materials 5, 014413 (2021)
We report current-induced spin torques in epitaxial NiMnSb films on a commercially available epi-ready GaAs substrate. The NiMnSb was grown by co-sputtering from three targets using optimised parameter. The films were processed into micro-scale bars
Externí odkaz:
http://arxiv.org/abs/2012.02568
Publikováno v:
Phys. Rev. B 103, 020504 (2021)
The upper critical field in type II superconductors is limited by the Pauli paramagnetic limit. In superconductors with strong Rashba spin-orbit coupling this limit can be overcome by forming a helical state. Here we quantitatively study the magnetic
Externí odkaz:
http://arxiv.org/abs/2009.14592
Autor:
Ohnishi, K., Komori, S., Yang, G., Jeon, K. -R., Olthof, L. A. B. Olde, Montiel, X., Blamire, M. G., Robinson, J. W. A.
Publikováno v:
Appl. Phys. Lett. 116, 130501 (2020)
Spin-transport in superconductors is a subject of fundamental and technical importance with the potential for applications in superconducting-based cryogenic memory and logic. Research in this area is rapidly intensifying with recent discoveries esta
Externí odkaz:
http://arxiv.org/abs/2003.07533
Autor:
Schaal, S., Ahmed, I., Haigh, J. A., Hutin, L., Bertrand, B., Barraud, S., Vinet, M., Lee, C. -M., Stelmashenko, N., Robinson, J. W. A., Qiu, J. Y., Hacohen-Gourgy, S., Siddiqi, I., Gonzalez-Zalba, M. F., Morton, J. J. L.
Publikováno v:
Phys. Rev. Lett. 124, 067701 (2020)
Spins in silicon quantum devices are promising candidates for large-scale quantum computing. Gate-based sensing of spin qubits offers compact and scalable readout with high fidelity, however further improvements in sensitivity are required to meet th
Externí odkaz:
http://arxiv.org/abs/1907.09429
Autor:
Bhatia, Ekta, Devine-Stoneman, J. M., Komori, S., Srivastava, A., Stelmashenko, N. A., Barber, Z. H., Senapati, K., Robinson, J. W. A.
Josephson junctions with s-wave superconductors (S) and multiple ferromagnetic (F) layers carry spin-triplet supercurrents in the presence of magnetically inhomogeneous spin-mixer interfaces. Here, we report magnetic Josephson junctions with exchange
Externí odkaz:
http://arxiv.org/abs/1907.08406
Publikováno v:
Phys. Rev. B 100, 220505 (2019)
Spin-orbit coupling (SOC) is known to play an important role in superconductor/ferromagnet heterostructures. Here we demonstrate that SOC results in the spontaneous generation of vortices in an \textit{s}-wave superconductor placed below a ferromagne
Externí odkaz:
http://arxiv.org/abs/1907.07510
Autor:
Anwar, M. S., Kunieda, M., Ishiguro, R., Lee, S. R., Sow, C., Robinson, J. W. A., Yonezawa, S., Noh, T. W., Maeno, Y.
Spin-polarized supercurrents can be generated with magnetic inhomogeneity at a ferromagnet/spin-singlet-superconductor interface. In such systems, complex magnetic inhomogeneity makes it difficult to functionalise the spin-polarized supercurrents. Ho
Externí odkaz:
http://arxiv.org/abs/1907.05175
Publikováno v:
Phys. Rev. B 100, 014509 (2019)
Applying the linearized Usadel equations, we consider the nucleation of superconductivity in multiply connected mesoscopic superconductor/ferromagnet (S/F) hybrids such as a thin superconducting ring on a ferromagnet with a uniform in-plane magnetiza
Externí odkaz:
http://arxiv.org/abs/1905.07683