Results 51 to 60 of about 25,756 (264)

Effect of NaOH and precursor concentration on size and magnetic properties of FeCo nanoparticles synthesized using the polyol method

AIP Advances, 2020
In this study, the effects of NaOH and precursor concentration on the particle size and magnetic properties of FeCo nanoparticles are investigated. Results suggest that an optimized ratio of NaOH molar concentration [OH] to precursor molar concentration [
J. H. Park, C. Park, K. S. Lee, S. J. Suh   +3 more
doaj   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

La–Mg-Substituted M-Type Sr-Hexaferrites for Enhanced Hard Magnetic Properties

Applied Sciences
This study investigates the structural and magnetic properties of La–Mg co-substituted M-type strontium hexaferrites with the compositions Sr1−xLaxFe12−xMgxO19 (x = 0, 0.05, 0.1, 0.15), synthesized via a conventional solid-state reaction route.
Jeong-Jin Kim, Young-Min Kang
doaj   +1 more source

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

Advanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko, Seongchan Kim, Jun‐Hyeok Han, Sanghee Lee, Minji Ahn, Hong En Fu, Young Jun Jang, Yoo Sang Jeon, Weiguo Li, Young Keun Kim, Dong‐Hyun Kim   +10 more
wiley   +1 more source

Connection of the Hall coefficient with some parameters in amorphous and crystalline ferromagnetics [PDF]

Журнал нано- та електронної фізики, 2010
For the series of alloys based on iron metal group the temperature dependences of Hall coefficient, resistivity, saturation magnetization in the amorphous and crystalline states are investigated.
Yu.A. Kunyts’ky, L.G. Khomenko, L.Yu. Kunyts’ka, M.Yu. Barabash   +3 more
doaj  

Designing Stable Periodic Magnetization Textures by Tailoring Anisotropies and Applying Geometrical Transformation

Advanced Functional Materials, EarlyView.
This work explores the possibility to design stable periodic magnetization textures by transforming a 2D film into a rolled‐up 3D architecture and back. In case of an isotropic exchange‐biased layer architecture, the magnetization encoded in the 3D state evolves into a spin‐spiral pattern with controlled periodicity after unrolling.
Aman Singh, Ivan Soldatov, Rudolf Schäfer, Volker Neu   +3 more
wiley   +1 more source

PREPARATION, MAGNETIC STUDIES AND BAND STRUCTURE CALCULATION OF NiFe2O4 NANOPARTICLES

TASK Quarterly, 2011
We have undertaken a comprehensive theoretical study of the band structure, density of states, dependence of the Curie point and saturation magnetization on the size of NiFe2O4 nanoparticles prepared by the conventional ceramic method.
GHOLAMREZA NABIYOUNI, MARJANEH JAFARI FESHARAKI, ARKADIY A. ZOLOTOVSKY   +2 more
doaj  

Magnetization plateau of the S = 1 spin ladder with anisotropies [PDF]

AIP Advances
The magnetization process of the S = 1 spin ladder with two anisotropies competing each other is investigated using the numerical diagonaization of finite-size clusters and the level spectroscopy analysis.
Yuki Hamazaki, Ryoma Hasegawa, Tomohide Kawatsu, Haruto Suzuki, Tomoki Houda, Hiroki Nakano, Kiyomi Okamoto, Tôru Sakai   +7 more
doaj   +1 more source

Development of a Three‐Axis Planar Hall Magnetoresistance Sensor Using a Superparamagnetic Nanoparticle‐Based Flux Guide

Advanced Functional Materials, EarlyView.
A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon, Mijin Kim, Keonmok Kim, Byeonghwa Lim, Bibhutibhusan Nayak, Youngdo Jung, Bo‐Yeon Lee, Taehyeong Jeon, Jinwoo Kim, Sunjong Oh, CheolGi Kim   +10 more
wiley   +1 more source

Magnetically Compensated Nanometer‐Thin Ga‐Substituted Yttrium Iron Garnet (Ga:YIG) Films with Robust Perpendicular Magnetic Anisotropy

Advanced Electronic Materials
Magnetically full or partially compensated insulating ferrimagnets with perpendicular magnetic anisotropy (PMA) offer valuable insights into fundamental spin‐wave physics and high‐speed magnonic applications. This study reports on key magnetic parameters
Carsten Dubs, Oleksii Surzhenko
doaj   +1 more source