Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Direct Spin-Imaging Detector Based on Freestanding Magnetic Nanomembranes. / Tereshchenko, O. E.; Bakin, V. V.; Stepanov, S. A. и др.
в: Physical Review Letters, Том 134, № 15, 157002, 18.04.2025.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Direct Spin-Imaging Detector Based on Freestanding Magnetic Nanomembranes
AU - Tereshchenko, O. E.
AU - Bakin, V. V.
AU - Stepanov, S. A.
AU - Golyashov, V. A.
AU - Mikaeva, A. S.
AU - Kustov, D. A.
AU - Rusetsky, V. S.
AU - Rozhkov, S. A.
AU - Scheibler, H. E.
AU - Demin, A. Yu
PY - 2025/4/18
Y1 - 2025/4/18
N2 - An analog of the optical polarizer-analyzer for electrons, a spin filter based on a freestanding ferromagnetic (FM) nanomembrane covering the entrance of the microchannel plate (MCP) was applied for efficient spin filtering and electron amplification in the 2D field of view. To study the spin dependent transmission, we constructed a spin-triode device (spintron), which consists of a compact proximity focused vacuum tube with the Na2KSb spin-polarized electron source, the FM-MCP and phosphor screen placed to run parallel to each other. Here, we demonstrate the fabrication of FM nanomembranes consisting of a [Co/Pt] superlattice deposited on a freestanding 3 nm SiO2 layer with a total thickness of 10 nm. The FM-MCP has ∼106 channels with a single-channel Sherman function S=0.6 and a transmission of ∼1.5×10-3 in the low electron energy range. The FM-MCP-based device provides a compact optical method for measuring the spin polarization of free electron beams in the imaging mode and is well suited for photoemission spectroscopy and microscopy methods.
AB - An analog of the optical polarizer-analyzer for electrons, a spin filter based on a freestanding ferromagnetic (FM) nanomembrane covering the entrance of the microchannel plate (MCP) was applied for efficient spin filtering and electron amplification in the 2D field of view. To study the spin dependent transmission, we constructed a spin-triode device (spintron), which consists of a compact proximity focused vacuum tube with the Na2KSb spin-polarized electron source, the FM-MCP and phosphor screen placed to run parallel to each other. Here, we demonstrate the fabrication of FM nanomembranes consisting of a [Co/Pt] superlattice deposited on a freestanding 3 nm SiO2 layer with a total thickness of 10 nm. The FM-MCP has ∼106 channels with a single-channel Sherman function S=0.6 and a transmission of ∼1.5×10-3 in the low electron energy range. The FM-MCP-based device provides a compact optical method for measuring the spin polarization of free electron beams in the imaging mode and is well suited for photoemission spectroscopy and microscopy methods.
UR - https://www.mendeley.com/catalogue/764e3ac9-c501-34e7-8454-9cef1a89855e/
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105003674321&origin=inward&txGid=447aa2da737ebcba62f97bfa690bc8d0
U2 - 10.1103/PhysRevLett.134.157002
DO - 10.1103/PhysRevLett.134.157002
M3 - Article
C2 - 40315520
VL - 134
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 15
M1 - 157002
ER -
ID: 66121003