Direct Spin-Imaging Detector Based on Freestanding Magnetic Nanomembranes | Sciact - CRIS-system of Boreskov Institute of Catalysis

Direct Spin-Imaging Detector Based on Freestanding Magnetic Nanomembranes Full article

Journal

Physical Review Letters
ISSN: 0031-9007 , E-ISSN: 1079-7114

Output data

Year: 2025, Volume: 134, Number: 15, Article number : 157002, Pages count : 8 DOI: 10.1103/physrevlett.134.157002

Tags

Photoelectron spectroscopy

Authors

Tereshchenko O. E. ^1,2,3 , Bakin V. V. ¹ , Stepanov S. A. ³ , Golyashov V. A. ^1,2,3 , Mikaeva A. S. ¹ , Kustov D. A. ¹ , Rusetsky V. S. ^1,4 , Rozhkov S. A. ^1,3 , Scheibler H. E. ^1,3 , Demin A. Yu. ⁴

Affiliations

1	Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences
2	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Koltsovo 630559, Russia
3	Novosibirsk State University, Novosibirsk 630090 Russia
4	CJSC “EKRAN FEP,” Novosibirsk 630060, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0040
2	Russian Science Foundation	22-12-20024 (122063000001-1)

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 ½Co=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 ¼ 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.

Tereshchenko O. . , Bakin V. . , Stepanov S. . , Golyashov V. . , Mikaeva A. . , Kustov D. . , Rusetsky V. . , Rozhkov S. . , Scheibler H. . , Demin A. .
Direct Spin-Imaging Detector Based on Freestanding Magnetic Nanomembranes
Physical Review Letters. 2025. V.134. N15. 157002 :1-8. DOI: 10.1103/physrevlett.134.157002 WOS Scopus PMID OpenAlex publication_identifier_short.sciact_skif_identifier_type

Submitted:	Oct 3, 2024
Accepted:	Mar 13, 2025
Published print:	Apr 18, 2025
Published online:	Apr 18, 2025

Web of science:	WOS:001494863000001
Scopus:	2-s2.0-105003674321
PMID:	40315520
OpenAlex:	W4409570949
publication_identifier.sciact_skif_identifier_type:	3833

Пока нет цитирований