Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport

• Sergey Bakurskiy,
• Mikhail Kupriyanov,
• Nikolay V. Klenov,
• Igor Soloviev,
• Andrey Schegolev,
• Roman Morari,
• Yury Khaydukov and
• Anatoli S. Sidorenko

Beilstein J. Nanotechnol. 2020, 11, 1336–1345, doi:10.3762/bjnano.11.118

• stronger dependence of the critical temperature on a mutual magnetization. In the latter, both mechanisms can generate the steps on the R(T) curve. Discussion We continued with the theoretical and experimental research on the Co/Nb multilayer structure since the polarized neutron reflectometry and

• . Schegolev appreciates the support from the Foundation for the Advancement of Theoretical Physics and Mathematics, “BASIS”. The samples were made in IEEN with the analytical support of the group from the Orel State University. The neutron reflectometry technique was performed at the Max-Planck-Institute in

Proximity effect in [Nb(1.5 nm)/Fe(x)]₁₀/Nb(50 nm) superconductor/ferromagnet heterostructures

• Yury Khaydukov,
• Sabine Pütter,
• Laura Guasco,
• Roman Morari,
• Gideok Kim,
• Thomas Keller,
• Anatolie Sidorenko and
• Bernhard Keimer

Beilstein J. Nanotechnol. 2020, 11, 1254–1263, doi:10.3762/bjnano.11.109

• the Al2O3(1−102) substrate. Samples grown at this condition possess a high residual resistivity ratio of 15–20. By using neutron reflectometry we show that Fe/Nb superlattices with x < 4 nm form a depth-modulated FeNb alloy with concentration of iron varying between 60% and 90%. This alloy has weak

• the thickness of the Fe layer to x = 4 nm the intermediate phase disappears. We attribute the intermediate state to proximity induced non-homogeneous superconductivity in the structure. Keywords: ferromagnet; iron (Fe); mixed state; neutron reflectometry; niobium (Nb); proximity effects

• below TC were calculated [28]. Experimentally the interaction of exchange coupling can be studied by integral magnetometric methods such as SQUID magnetometry [30] or depth-resolved techniques such as polarized neutron reflectometry (PNR) [31]. One potentially interesting system for studying the

Periodic Co/Nb pseudo spin valve for cryogenic memory

• Nikolay Klenov,
• Yury Khaydukov,
• Sergey Bakurskiy,
• Roman Morari,
• Igor Soloviev,
• Vladimir Boian,
• Thomas Keller,
• Mikhail Kupriyanov,
• Anatoli Sidorenko and
• Bernhard Keimer

Beilstein J. Nanotechnol. 2019, 10, 833–839, doi:10.3762/bjnano.10.83

• nm/s for Nb and Co, respectively. After the deposition the structure was capped by a silicon layer. In order to characterize the structural and magnetic ordering of the Co/Nb superlattice we performed polarized neutron reflectometry (PNR) experiments. The measurements were conducted at the neutron

• ) electrodes. Using neutron reflectometry we demonstrated that an AP state can be created and erased by applying a field of 30 Oe. The normalized critical current of the S/F/s/F/S (solid lines) and S/F/N/F/S (dashed lines) structures as a function of the thickness of the spacing layer (a) and the dimensionless

Automatic morphological characterization of nanobubbles with a novel image segmentation method and its application in the study of nanobubble coalescence

• Yuliang Wang,
• Huimin Wang,
• Shusheng Bi and
• Bin Guo

Beilstein J. Nanotechnol. 2015, 6, 952–963, doi:10.3762/bjnano.6.98

• ][9], rapid cryofixation/freeze fracturing [10], neutron reflectometry [11], X-ray reflectivity measurements [12], spectroscopic methods [13], total internal reflection fluorescence excitation [14], and even using an optical visualization approach with a limited resolution [14][15]. NBs have shown