Article
Chemistry, Physical
Chao Yang, Yuya Kita, Zenglu Song, Yasushi Takemura
Summary: This study analyzed the magnetization reversal of a FeCoV Wiegand wire using first-order reversal curves (FORCs), identifying the magnetization reversal of the soft and hard regions in the wire. The study clarified the predominantly irreversible magnetization process of the soft layer and the magnetic intermediate region between the soft and hard regions.
Article
Chemistry, Physical
M. Zareef Khan, Hur Abbas, K. Nadeem, Asad Iqbal, Ilse-Letofsky Papst
Summary: This study successfully synthesized hard barium ferrite, soft nickel ferrite, and their nanocomposites with different concentrations. The results showed that the nanocomposites exhibited strong magnetic interactions and spring exchange coupling between the hard and soft magnetic phases, indicating potential technological applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
A. Cardona-Rodriguez, Edwin Ramos Rodriguez, D. Carranza-Celis, N. Vergara-Duran, A. S. E. da Cruz, O. Moscoso Londono, M. Knobel, A. Reiber, Diego Muraca, Juan Gabriel Ramirez
Summary: The magnetic behavior of BiFeO3 nanoparticles was studied using First-Order Reversal Curve (FORC) and temperature-dependent magnetometry measurements. It was found that below a certain size, the nanoparticles exhibit ferromagnetic-like behavior, while above that size, a paramagnetic contribution dominates.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Harshavardhan Mohan, Natesan Karthi, Pavithra Muthukumar Sathya, Vaikundamoorthy Ramalingam, Srivalli Thimmarayan, Mohammad Amjad Hossain, Adithan Aravinthan, Taeho Shin
Summary: This study synthesized (Zn, Ni)-ferrite nanoparticles using a chemical co-precipitation method and evaluated their cytotoxicity and osteogenic properties. The results showed that these nanoparticles had low toxicity and could potentially be used as biomaterials in regenerative medicine.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Multidisciplinary
Sohail Ahmad, Shaheen Akhter, Muhammad Imran Shahid, Kashif Ali, Mubeen Akhtar, Muhammad Ashraf
Summary: This paper examines the innovative attributes of hybrid nanofluids, specifically Manganese zinc ferrite (MnZnFe2O4) and Nickel zinc ferrite (NiZnFe2O4), in the bio-convective flow of motile gyrotactic microorganisms. The results demonstrate that the use of hybrid nanofluids can enhance heat transfer rate and is significant for the design and application of thermal systems.
AIN SHAMS ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Tian-Chi Ji, Min-Xiang Pan, Hong-Liang Ge, Qiong Wu, Zhang Pengyue
Summary: The present work investigated the magnetization reversal behavior of Zr-doped (Nd0.8Ce0.2)(2)Fe12Co2-xZrxB (x = 0, 0.5) permanent alloys with high coercivity, showing that the Zr-doped sample exhibits higher magnetic properties and its reverse process can be explained by the pinning model.
Article
Environmental Sciences
Harshavardhan Mohan, Pavithra Muthukumar Sathya, Sethumathavan Vadivel, Ga Hyeon Ha, Hyeon Seung Oh, Gitae Kim, Kamala-Kannan Seralathan, Taeho Shin
Summary: Pharmaceuticals and personal care products contribute to environmental pollution at alarming rates. Nanomaterial based photocatalysis, such as the synthesized Nickel zinc ferrite nanoparticles in this study, shows great potential for reducing the concentration of PPCPs. The nanoparticles successfully degraded diclofenac with high efficiency and minimal toxicity, making them promising photocatalysts.
Article
Chemistry, Physical
Liang Jiang, Chao Yang, Zenglu Song, Yasushi Takemura
Summary: This study aims to elucidate the magnetization reversal in the Wiegand wire by using a first-order reversal curve (FORC) diagram method. The results demonstrate a significant magnetization reversal in various components of the wire under an applied magnetic field.
Article
Chemistry, Physical
Guorong Sha, Chao Yang, Zenglu Song, Yasushi Takemura
Summary: This study analyzed the magnetic properties of Wiegand wires at various lengths using first-order reversal curves (FORCs) and evaluated the FORC diagram. The unique magnetization reversal feature and the polarity of FORC distribution were clarified.
Article
Polymer Science
Jan Kruzelak, Andrea Kvasnicakova, Michaela Dzuganova, Lenka Haskova, Rastislav Dosoudil, Ivan Hudec
Summary: Magnetic soft ferrites, namely manganese-zinc ferrite, nickel-zinc ferrite and their combinations, were incorporated into acrylonitrile-butadiene rubber with carbon fibers to fabricate composite materials. The effect of the fillers on absorption shielding performance of the composites within the frequency range 1-6 GHz was investigated. Results showed that the absorption shielding efficiency of both composites increased with increasing proportion of nickel-zinc ferrite. The addition of carbon fibers and ferrites resulted in lower absorption shielding performance due to their higher electrical conductivity and permittivity.
Article
Materials Science, Ceramics
Ala Manohar, Krishnamoorthi Chintagumpala, Ki Hyeon Kim
Summary: The synthesis of high-quality, narrow size distributed Zn1-xNixFe2O4 nanoparticles with increased saturation mass magnetization has been achieved in this study, suitable for localized superparamagnetic hyperthermia and photocatalysis applications. The samples exhibited good colloidal stability and higher specific heat generation rates, with enhanced photocatalytic efficiency as Ni2+ concentration increased.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Jiali Song, Yu Gao, Guoguo Tan, Qikui Man, Zhi Wang
Summary: In this study, spinel Ni-Zn ferrites with excellent microwave absorption properties were synthesized and their absorption characteristics and interaction mechanisms were investigated. The results showed that S-NZFO had a wide effective absorption bandwidth and high saturation magnetization, while H-NZFO had small particle size and high complex permittivity. Both materials demonstrated potential as efficient microwave absorbers in military and civilian applications.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ali B. Abou Hammad, A. M. Mansour, Feng Cao, Amany M. El Nahrawy
Summary: In this study, NiFe2O4-KFeO2 nanocomposite thin films were synthesized without surfactant and water (WOSW) sol-gel route and characterized for their structural, optical, and magnetic properties. It was found that with the increase in calcination temperature, the size and surface area of the particles increased, and the saturation magnetization also increased.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Junjie Xu, Kai Zhu, Wei Li, Xiaobai Wang, Ziyu Yang, Yanglong Hou, Song Gao
Summary: Rare earth permanent magnet nanostructures, specifically Nd2Fe14B-based nanostructures, were fabricated with different Nd-rich phase contents, showing that an increase in Nd-rich phase can enhance coercivity due to its role as pinning centers optimizing microstructures and magnetic interactions. This study sheds light on the relationship between Nd-rich phase, magnetic interactions, microstructures, and magnetic properties, paving the way for advanced permanent magnetic nanostructure fabrication techniques.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Multidisciplinary Sciences
Hassanien Gomaa, Eman M. Abd El-Monaem, Abdelazeem S. Eltaweil, Ahmed M. Omer
Summary: This study fabricated a montmorillonite/magnetic -NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as a green adsorbent for the removal of cationic methylene blue and crystal violet dyes from wastewater. The MMT-mAmCs composite exhibited high negative charges over a wide pH range, making it ideal for adsorbing cationic contaminants. The optimum pH for adsorption was found to be 7, and the composite displayed ferromagnetic behavior for easy separation. The maximum adsorption capacities of methylene blue and crystal violet were 137 and 118 mg/g, respectively, and the composite showed excellent reusability with over 87% removal efficiency after ten cycles.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Z. Boekelheide, C. L. Dennis
Article
Chemistry, Inorganic & Nuclear
I. Levin, V. Krayzman, T. A. Vanderah, M. Tomczyk, H. Wu, M. G. Tucker, H. Y. Playford, J. C. Woicik, C. L. Dennis, P. M. Vilarinho
JOURNAL OF SOLID STATE CHEMISTRY
(2017)
Article
Nanoscience & Nanotechnology
D. B. Gopman, C. L. Dennis, R. D. McMichael, X. Hao, Z. Wang, X. Wang, H. Gan, Y. Zhou, J. Zhang, Y. Huai
Article
Nanoscience & Nanotechnology
C. L. Dennis, A. J. Jackson, J. A. Borchers, C. Gruettner, R. Ivkov
Article
Engineering, Electrical & Electronic
Nobuhiro Matsumoto, Cindi L. Dennis, Robert D. Shull
IEEE TRANSACTIONS ON MAGNETICS
(2019)
Article
Multidisciplinary Sciences
Lauren E. Woodard, Cindi L. Dennis, Julie A. Borchers, Anilchandra Attaluri, Esteban Velarde, Charlene Dawidczyk, Peter C. Searson, Martin G. Pomper, Robert Ivkov
SCIENTIFIC REPORTS
(2018)
Article
Chemistry, Physical
S. Keshavarz, N. Naghibolashrafi, M. E. Jamer, K. Vinson, D. Mazumdar, C. L. Dennis, W. Ratcliff, J. A. Borchers, A. Gupta, P. LeClair
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Physics, Applied
Zoe Boekelheide, Jackson T. Miller, Cordula Gruettner, Cindi L. Dennis
JOURNAL OF APPLIED PHYSICS
(2019)
Article
Engineering, Electrical & Electronic
Nobuhiro Matsumoto, Cindi L. Dennis, Robert D. Shull
Summary: The study reported measurements in a second-order gradiometer superconducting quantum interference device (SQUID) magnetometer of pure nickel (Ni) cylinders. It found that the magnetic moment per unit mass of the Ni cylinder decreases with sample length, with the extent of decrease depending on the type of magnetometer used and the length of the second-order gradiometer superconducting coil.
IEEE TRANSACTIONS ON MAGNETICS
(2021)
Article
Physics, Applied
Thinh Q. Bui, Adam J. Biacchi, Cindi L. Dennis, Weston L. Tew, Angela R. Hight Walker, Solomon I. Woods
Summary: Accurate characterization of the magnetization dynamics of single-domain magnetic nanoparticles is crucial for magnetic particle imaging, magnetic resonance imaging, and medical diagnostic/therapeutic technologies. In this study, we demonstrate the specific relaxation processes of iron oxide nanoparticles using time and frequency domain techniques, and investigate the fast dynamics at timescales relevant to magnetic particle imaging.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
B. Bosch-Santos, G. A. Cabrera-Pasca, E. L. Correa, B. S. Correa, T. N. S. Sales, K-W Moon, C. L. Dennis, Q. Huang, J. B. Leao, J. W. Lynn, A. W. Carbonari
Summary: La doping in the Ce(1-x)LaxCrGe3 system affects the magnetic ordering and exchange interaction of Cr ions, resulting in changes in the magnetic moments between CeCrGe3 and LaCrGe3.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Harshita Kumari, Cindi L. Dennis, Steven R. Kline, Andrew Mossine, Carol A. Deakyne, Jerry L. Atwood
Summary: The magnetic properties of nickel-seamed C-pyrogallol[4]arene (PgC(3)Ni) hexamers and dimers are studied for the first time in solution. The study reveals the presence of an unprecedented 13 angstrom-radius species and confirms the existence of two additional new species. Select parameters that shift the equilibrium towards desired species are identified.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Electrochemistry
Eric D. Rus, Eduardo L. Correa, Evan Groopman, Todd Williamson, Hussein Hijazi, Leila Kasaei, Cindi L. Dennis, Thomas P. Moffat
Summary: Pt1-xNix alloy thin films have potential applications as magnetic thermometers, with higher nickel content resulting in higher Curie temperatures. The presence of boric acid has negligible effect on the magnetization of films deposited at higher potentials, but reduces magnetization for films deposited at lower potentials.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Frank M. Abel, Eduardo L. Correa, Adam J. Biacchi, Thinh Q. Bui, Solomon I. Woods, Angela R. Hight Walker, Cindi L. Dennis
Summary: Temperature is a crucial physical quantity in the sciences of both physics and biology, but measuring temperature in a three-dimensional microscale volume that cannot be accessed optically is currently limited. Thermal magnetic particle imaging (T-MPI), a temperature variant of magnetic particle imaging (MPI), aims to overcome this limitation. This study focuses on demonstrating that the temperature sensitivity of magnetic nano-objects (MNOs) can be amplified by utilizing ferrimagnetic (FiM) iron oxide (ferrite) and antiferromagnetic (AFM) cobalt oxide (CoO) with strong temperature-dependent magnetization through interface effects. The interfacial magnetic coupling of FiM/AFM is confirmed to increase thermosensitivity in MNOs for T-MPI.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Amber McCreary, Jeffrey R. Simpson, Thuc T. Mai, Robert D. McMichael, Jason E. Douglas, Nicholas Butch, Cindi Dennis, Rolando Valdes Aguilar, Angela R. Hight Walker