High-Magnetization FeCo Nanochains with Ultrathin Interfacial Gaps for Broadband Electromagnetic Wave Absorption at Gigahertz

ACS Applied Materials & Interfaces
Xuefeng ZhangGaowu Qin

Abstract

Superparamagnetic FeCo nanochains consisting of assembled ∼25 nm nanoparticles and ∼1 nm gaps are synthesized by facial wet-chemical route and exhibit significant electromagnetic absorption at gigahertz. Both the dielectric and magnetic loss factors present dual-resonance behaviors at 2-18 GHz frequencies, originated from the asymmetric architecture of the cubic FeCo particles that assembled in a one-dimensional chain structure. Theoretical analyses uncover that the origins of the enhancement of electromagnetic losses are ascribed to the high magnetization (228 emu/g) and the ultrathin gaps (∼1 nm), which enhances the Snoek limit and induces anisotropic dielectric polarizations, consequently constructing a proper electromagnetic match.

Citations

Jan 25, 2017·ACS Applied Materials & Interfaces·Hualiang LvZhichuan J Xu
May 24, 2017·ACS Applied Materials & Interfaces·Meikang HanYury Gogotsi
Jul 1, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Yanan ZhangYouwei Du
Aug 7, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Chen LiangZhan Shi
Oct 9, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Sisi DaiGuangbin Ji
Nov 6, 2018·Journal of Colloid and Interface Science·Guanglei WuHualiang Lv
Jun 20, 2021·Journal of Colloid and Interface Science·Zijian LiaoYong Ma
Jul 20, 2021·Journal of Colloid and Interface Science·Mingtao QiaoQiuyu Zhang
Aug 7, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Zijian LiaoRanran Sun
Apr 7, 2018·Nano Letters·Sebastian EkerothUlf Helmersson

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Physical Review. B, Condensed Matter
P J HirschfeldW O Putikka
Physical Review. B, Condensed Matter
B RaquetJ C Ousset
Journal of the American Chemical Society
Girija S ChaubeyJ Ping Liu
Journal of Nanoscience and Nanotechnology
Dong-Hyun KimValentyn Novosad
© 2022 Meta ULC. All rights reserved