Results 61 to 70 of about 50,805 (272)

Selective Separation of the Rare Earth Elements Dysprosium and Neodymium via Tailoring Nanocellulose Chemical Structure

Advanced Functional Materials, EarlyView.
Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani, Shang‐Lin Yeh, Karuna Anna Sajeevan, Mica L. Pitcher, Dawson Alexander, Ratul Chowdhury, Amir Sheikhi   +6 more
wiley   +1 more source

Calculation of coercivity of magnetic nanostructures at finite temperatures

, 2011
We report a finite temperature micromagnetic method (FTM) that allows for the calculation of the coercive field of arbitrary shaped magnetic nanostructures at time scales of nanoseconds to years.
B. Bergmair, C. Vogler, D. Suess, F. Bruckner, G. E. Moore, H. B. Braun, J. Fidler, J. Lee, L. Breth, L. Landau, L. Néel, L. Néel, M. Fuger, T. Huber, T. Schrefl, W. F. Brown   +15 more
core   +1 more source

Magnetism and Nonlinear Charge Transport in NiFe2O4/γ‐Al2O3/SrTiO3 Heterostructure: Toward Spintronic Applications

Advanced Functional Materials, EarlyView.
In this report, we demonstrate that a crystalline phase of 52nm thick NiFe2O4 can be grown by RF sputtering on top of γ‐Al2O3(8nm)/SrTiO3 at a significantly low temperature (150 °C) without compromising the mobility and carrier density of the 2D electron gas at the γ‐Al2O3(8nm)/SrTiO3 interface.
Amit Chanda, Thor Hvid‐Olsen, Christina Hoegfeldt, Anshu Gupta, Alessandro Palliotto, Fardin Ghaffari‐Tabrizi, Maja A. Dunstan, Kasper S. Pedersen, Dae‐Sung Park, Damon J. Carrad, Thomas Sand Jespersen, Felix Trier   +11 more
wiley   +1 more source

Hysteretic response characteristics and dynamic phase transition via site dilution in the kinetic Ising model

, 2012
The decay of the hysteresis loop area of the system, which is obeying a site diluted kinetic Ising model, is considered by the disorder parameter using the effective field theory analysis.
Acharyya, Acharyya, Acharyya, Acharyya, Acharyya, Agarwal, Angst, B.O. Aktaş, Balcerzak, Berkoilako, Binder, Bruno, Chakrabarti, Deviren, Fan, Gilmore, Glauber, Gunton, H. Polat, Honmura, Idigoras, Jiang, Jung, Kaneyoshi, Kaneyoshi, Kaneyoshi, Kanuga, Korniss, Liu, Liu, Lo, Luse, Lyuksyutov, Mayergoyz, Nattermann, Nattermann, Nowak, Punya, Rao, Robb, Shi, Shi, Sides, Steinmetz, Suen, Suzuki, Tomè, Tucker, Zernike, Zhu, Ü. Akıncı   +50 more
core   +1 more source

Temperature‐Induced Nonvolatile Switching through Thermal Hysteresis in a Gd3Fe5O12/Ho3Fe5O12 Exchange‐Coupled Rare‐Earth Iron Garnet Bilayer

Advanced Functional Materials, EarlyView.
Reducing power consumption in spintronic memory remains a major challenge due to the need for high current densities. A bilayer of gadolinium and holmium iron garnets enables purely temperature‐induced, nonvolatile magnetic switching with bistable states within a ±25 K range. This approach achieves up to 66‐fold lower energy use than current spin–orbit
Junseok Kim, Phuoc Cao Van, Jong‐Ryul Jeong, Hyungyu Jin   +3 more
wiley   +1 more source

Coercivity of (Fe_0.7Co_0.3)₂B Nanowire and Its Bonded Magnet

Crystals
(Fe0.7Co0.3)2B are potential permanent magnets material due to its large saturation magnetization and high Curie temperature. However, it has moderate magnetocrystalline anisotropy (MCA) and low coercivity. One way to improve its coercivity is to combine
Xubo Liu, Ikenna C. Nlebedim
doaj   +1 more source

Large Coercivity in Nanostructured Rare-earth-free MnxGa Films

, 2011
The magnetic hysteresis of MnxGa films exhibit remarkably large coercive fields as high as 2.5 T when fabricated with nanoscale particles of a suitable size and orientation.
Cullity B. D., D. Heiman, S. P Bennett, T. Cardinal, T. J. Nummy   +4 more
core   +1 more source

Electro‐Chemo‐Mechanical Coupling in Hf0.5Zr0.5O2 Ferroionic Heterostructures

Advanced Functional Materials, EarlyView.
Schematic of a ferroionic HZO heterostructure where epitaxial interfaces enable dynamic oxygen‐vacancy exchange, coupling ionic and ferroelectric degrees of freedom. Vacancy‐mediated polarization modulation biases HZO polymorphism, suppresses leakage, and enhances piezoelectric response, yielding distinct butterfly‐loop evolution and diode‐like ...
Achilles Bergne, Denis Alikin, Milica Vasiljevic, Victor B. Tinti, Javier Zamudio‐García, Leonardo Soares de Oliveira, Megan Landberg, Dimitrios Koukoulis, Huaiyu Chen, Jesper Wallentin, David Marrero‐López, Astri Bjørnetun Haugen, Sizhao Huang, Dennis Christensen, Nini Pryds, Alexander Tselev, Andrei Kholkin, Vincenzo Esposito   +17 more
wiley   +1 more source

Dependence of Magnetic Properties of As-Prepared Nanocrystalline Ni₂MnGa Glass-Coated Microwires on the Geometrical Aspect Ratio

Sensors
We have prepared NiMnGa glass-coated microwires with different geometrical aspect ratios, ρ = dmetal/Dtotal (dmetal—diameter of metallic nucleus, and Dtotal—total diameter).
Mohamed Salaheldeen, Valentina Zhukova, Ricardo Lopez Anton, Arcady Zhukov   +3 more
doaj   +1 more source

Hard magnetic properties in nanoflake van der Waals Fe3GeTe2

, 2018
Two dimensional (2D) van der Waals (vdW) materials have demonstrated fascinating optical, electrical and thickness-dependent characteristics. These have been explored by numerous authors but reports on magnetic properties and spintronic applications of ...
Albarakati, Sultan, Field, Matthew R., Jung, Soon-Gil, Lee, Changgu, Lee, Jinhwan, McCulloch, Dougal G., Park, Tuson, Partridge, James, Tan, Cheng, Wang, Lan   +9 more
core   +2 more sources