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Magnetic irreversibility and magnetization processes in NiAl/NiO core/shell nanoparticle system.
J Phys Condens Matter
August 2024
School of Physics, University of Hyderabad, Central University PO, Hyderabad 500046, Telangana, India.
This work brings out many interesting facets of magnetism in the NiAl/NiO core/shell nanoparticle system. Theandmagnetic irreversibility lines (TWI(H)andTSI(H)) reproduce the previously reported - phase diagram at fieldsH⩽30 Oe, but strong departures occur for > 30 Oe. Comparison with the theoretically predicted - phase diagram allows us to identifywithTCG+SG, where the paramagnetic (PM)-chiral glass () and PM-spin glass () phase transitions occur, andwith, the temperature at which transition to the replica symmetry breakingstate takes place.
View Article and Find Full Text PDFImpact of Gd doping on structural, electronic, magnetic, and photocatalytic properties of MnFeO nanoferrites and application in dye-polluted wastewater remediation.
Environ Sci Pollut Res Int
February 2023
Department of Physics, University of Rajasthan, Jaipur, 302004, Rajasthan, India.
The present work focuses on developing Gd-doped Mn spinel nanoferrites and their potential application in the photodegradation of water pollutants. The impact of Gd ion substitution on structural, electronic, and magnetic characteristics of manganese ferrites has been studied. Nanocrystalline samples of MnGdFeO (x = 0.
View Article and Find Full Text PDFMechanochemical Synthesis and Magnetic Characterization of Nanosized Cubic Spinel FeCrS Particles.
ACS Omega
May 2021
Christian-Albrechts-Universität zu Kiel, Institut für Anorganische Chemie, Max-Eyth-Str. 2, 24118 Kiel, Germany.
Nanosized samples of the cubic thiospinel FeCrS were synthesized by ball milling of FeS and CrS precursors followed by a distinct temperature treatment between 500 and 800 °C. Depending on the applied temperature, volume weighted mean ( ) particle sizes of 56 nm (500 °C), 86 nm (600 °C), and 123 nm (800 °C) were obtained. All samples show a transition into the ferrimagnetic state at a Curie temperature of ∼ 167 K only slightly depending on the annealing temperature.
View Article and Find Full Text PDFStrain tuning of the Curie temperature and valley polarization in two dimensional ferromagnetic WSe/CrSnSeheterostructure.
Nanotechnology
June 2021
Department of Physics, Pukyong National University, Busan 48513, Republic of Korea.
Magnetic proximity effect can be used to tailor the magnetic ground state and valley polarization in the monolayer of transition metal dichalcogenides. Thus, we explore the effect of biaxial tensile and compressive strain on valley polarization in the WSe/CrSnSeheterostructures with different stacking orders systematically. The indirect band gaps in the two most stable stackings; hollow (0.
View Article and Find Full Text PDFGate-tunable room-temperature ferromagnetism in two-dimensional FeGeTe.
Nature
November 2018
State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, China.
Materials research has driven the development of modern nano-electronic devices. In particular, research in magnetic thin films has revolutionized the development of spintronic devices because identifying new magnetic materials is key to better device performance and design. Van der Waals crystals retain their chemical stability and structural integrity down to the monolayer and, being atomically thin, are readily tuned by various kinds of gate modulation.
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