Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Blamire, Mark G"'
Autor:
Komori, Sachio, Thompson, Juliet E., Yang, Guang, Kimbell, Graham, Stelmashenko, Nadia, Blamire, Mark G., Robinson, Jason W. A.
Publikováno v:
Phys. Rev. Applied 17, L021002 (2022)
The electrical and structural properties of Co40Fe40B20 (CoFeB) alloy are tunable with thermal annealing. This is key in the optimization of CoFeB-based spintronic devices, where the advantageously low magnetic coercivity, high spin polarization, and
Externí odkaz:
http://arxiv.org/abs/2103.16136
Autor:
Komori, Sachio, Devine-Stoneman, James, Ohnishi, Kohei, Yang, Guang, Devizorova, Zhanna, Mironov, Sergey, Montiel, Xavier, Olthof, Linde A. B. Olde, Cohen, Lesley F., Kurebayashi, Hidekazu, Blamire, Mark G., Buzdin, Alexandre I., Robinson, Jason W. A.
Publikováno v:
Sci. Adv. 7, eabe0128 (2021)
An inhomogeneous magnetic exchange field at a superconductor/ferromagnet interface converts spin-singlet Cooper pairs to a spin-aligned (i.e. spin-polarized) triplet state. Although the decay envelope of such triplet pairs within ferromagnetic materi
Externí odkaz:
http://arxiv.org/abs/2006.16654
Autor:
Jeon, Kun-Rok, Montiel, Xavier, Komori, Sachio, Ciccarelli, Chiara, Haigh, James, Kurebayashi, Hidekazu, Cohen, Lesley F., Lee, Chang-Min, Blamire, Mark G., Robinson, Jason W. A.
Publikováno v:
Phys. Rev. X 10, 031020 (2020)
Recent ferromagnetic resonance experiments and theory of Pt/Nb/Ni8Fe2 proximity-coupled structures strongly suggest that spin-orbit coupling (SOC) in Pt in conjunction with a magnetic exchange field in Ni8Fe2 are the essential ingredients to generate
Externí odkaz:
http://arxiv.org/abs/1908.00873
Autor:
Jeon, Kun-Rok, Ciccarelli, Chiara, Kurebayashi, Hidekazu, Cohen, Lesley F., Komori, Sachio, Robinson, Jason W. A., Blamire, Mark G.
Publikováno v:
Phys. Rev. B 99, 144503 (2019)
We report Abrikosov vortex nucleation in Pt/Nb/Ni80Fe20/Nb/Pt proximity-coupled structures under oblique ferromagnetic resonance (FMR) that turns out to be detrimental to superconducting spin pumping. By measuring an out-of-plane field-angle {\theta}
Externí odkaz:
http://arxiv.org/abs/1902.03862
Autor:
Jeon, Kun-Rok, Ciccarelli, Chiara, Kurebayashi, Hidekazu, Cohen, Lesley F., Montiel, Xavier, Eschrig, Matthias, Wagner, Thomas, Komori, Sachio, Srivastava, Anand, Robinson, Jason W. A., Blamire, Mark G.
Publikováno v:
Phys. Rev. Applied 11, 014061 (2019)
We investigate the influence of Meissner screening and trapped magnetic flux on magnetization dynamics for a Ni80Fe20 film sandwiched between two thick Nb layers (100 nm) using broadband (5-20 GHz) ferromagnetic resonance (FMR) spectroscopy. Below th
Externí odkaz:
http://arxiv.org/abs/1810.08443
Autor:
Srivastava, Anand, Olthof, Linde A. B. Olde, Di Bernardo, Angelo, Komori, Sachio, Amado, Mario, Palomares-Garcia, Carla, Alidoust, Mohammad, Halterman, Klaus, Blamire, Mark G., Robinson, Jason W. A.
Publikováno v:
Phys. Rev. Applied 8, 044008 (2017)
The pairing state and critical temperature (T$_c$) of a thin s-wave superconductor (S) on two or more ferromagnets (F) are controllable through the magnetization-alignment of the F layers. Magnetization misalignment can lead to spin-polarized triplet
Externí odkaz:
http://arxiv.org/abs/1706.00332
Spin filter tunnel junctions are based on selective tunneling of up and down spin electrons controlled through exchange splitting of the band structure of a ferromagnetic insulator. Therefore, spin filter efficiency can be tuned by adjusting exchange
Externí odkaz:
http://arxiv.org/abs/1410.6741
Autor:
Dinner, Rafael B., Robinson, Adam P., Wimbush, Stuart C., MacManus-Driscoll, Judith L., Blamire, Mark G.
Publikováno v:
Supercond. Sci. Technol. 24 (2011) 055017
Large area arrays of through-thickness nanoscale pores have been milled into superconducting Nb thin films via a process utilizing anodized aluminum oxide thin film templates. These pores act as artificial flux pinning centers, increasing the superco
Externí odkaz:
http://arxiv.org/abs/1011.4599
Autor:
Dinner, Rafael B., Sahonta, Suman-Lata, Yu, Rong, Stelmashenko, Nadia A., MacManus-Driscoll, Judith L., Blamire, Mark G.
Publikováno v:
R. B. Dinner, S. Sahonta, R. Yu, N. A. Stelmashenko, J. L. MacManus-Driscoll and M. G. Blamire, Supercond. Sci. Technol. 22 (2009) 075001
We have created superconductor-ferromagnet composite films in order to test the enhancement of critical current density, Jc, due to magnetic pinning. We co-sputter the type-II superconductor niobium (Nb) and the low-temperature ferromagnet dysprosium
Externí odkaz:
http://arxiv.org/abs/0903.3142
Autor:
Caruso Roberta, Giovanna Ahmad Halima, Pal Avradeep, Piero Pepe Giovanni, Massarotti Davide, Blamire Mark G., Tafuri Francesco
Publikováno v:
EPJ Web of Conferences, Vol 233, p 05007 (2020)
The interplay between superconducting and ferromagnetic order pa¬rameters in S/F interfaces gives rise to a wide range of peculiar properties with applications in high-efficiency computation and in the emerging field of super¬conducting spintronics
Externí odkaz:
https://doaj.org/article/e5f97b07818c4988bbef90ec4cb59f6f
