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Displaying 1151 - 1175 of 3361

Database of Diffusion MRI Brain Scans at 64 mT and 3 T

January 8, 2026
Author(s)
Andrew Dienstfrey, Zydrunas Gimbutas, Joe Chalfoun, Adele Peskin, Kalina Jordanova, Kathryn Keenan, Stephen Ogier
Low-field magnetic resonance imaging offers the promise to significantly increase access to in vivo soft tissue imaging. The technology is both portable and low-cost in relation to the high-field scanners in clinical use today. However, these gains are

High-throughput search for magnetic topological materials using spin-orbit spillage, machine-learning and experiments

April 16, 2021
Author(s)
Kamal Choudhary, Kevin Garrity, Francesca Tavazza, Nirmal Ghimire, Naween Anand
… Magnetic topological insulators and semi-metals have a … high-throughput density functional theory to identify magnetic topological materials out of ≈ 40000 … First, we screen materials with net magnetic moment > 0.5 μB and spin-orbit spillage > 0.25 … learning model for predicting spillage, bandgap and magnetic moment to further accelerate the screening process. …

Effect of Grain Constraint on the Field Requirements for Magnetocaloric Effect in Ni(sub45)Co(Sub5)Mn(Sub40)Sn(sub10) Melt-Spun Ribbons

August 21, 2016
Author(s)
N. M. Bruno, Y. J. Huang, Cindi L. Dennis, J. G. Li, Robert D. Shull, J. H. Ross Jr., Y. I. Chumlyakov, I. Karaman
The influence of grain constraint on the magnetic field levels required to complete the isothermal martensitic transformation in magnetic shape memory alloys has been demonstrated for a NiCoMnSn alloy and the magnetocaloric performance of an optimally heat

Low-Field Magnetic Resonance Imaging of Roots in Intact Clayey and Silty Soils

July 1, 2020
Author(s)
George Bagnall, Cristine` Morgan, Matthew Rosen, Mark Conradi, Stephen Altobelli, Dean Kuethe, Haly Neely, Neha Koonjoo, Bo Zhu, Karl Stupic, John Mullet, Brock Weers, Eiichi Fukushima, William Rooney
… In this work we describe a novel technology, low field magnetic resonance imaging (LF-MRI), for imaging energy … morphology and architecture in intact soils. The use of magnetic fields much weaker than those used with traditional MRI experiment reduces the distortion due to magnetic material naturally present in agricultural soils. A …

Anomalous Metamagnetism in the Low Carrier Density Kondo Lattice YbRh 3 Si 7

December 13, 2018
Author(s)
Binod K. Rai, S. Chikara, Xiaxin Ding, Iain W. H. Oswald, R. Schonemann, V. Loganathan, A. M. Hallas, H. B. Cao, Macy Stavinoha, T. Chen, Haoran Man, Scott Carr, John Singleton, Vivien Zapf, Katherine A. Benavides, Julia Y. Chan, Q. R. Zhang, D. Rhodes, Y. C. Chiu, Luis Balicas, A. A. Aczel, Qingzhen Huang, Jeffrey W. Lynn, J. Gaudet, D. A. Sokolov, H. C. Walker, D. T. Adroja, Pengcheng Dai, Andriy H. Nevidomskyy, C.-L. Huang, E. Morosan
We report complex metamagnetic transitions in single crystals of the new low carrier Kondo antiferromagnet YbRh 3Si 7. Electrical transport, magnetization, and specific heat measurements reveal antiferromagnetic order at Τ N = 7.5 K. Neutron diffraction

Near-Field Imaging of High Frequency Magnetic Fields with Calorimetric Cantilevers Probes

April 21, 2006
Author(s)
Simone Lee, Y. C. Lee, Thomas Mitchell (Mitch) Wallis, John M. Moreland, Pavel Kabos
… probes for near-field imaging of high-frequency (1-20 GHz) magnetic fields were fabricated by depositing patterned metal … multilayer cantilevers. In the presence of high-frequency magnetic fields, the metal structures are heated via the … Near-Field Imaging of High Frequency Magnetic Fields with Calorimetric Cantilevers Probes …

Ferromagnetic Resonance Linewidth in Thin Films Coupled to NiO

January 1, 1998
Author(s)
Robert McMichael, Mark D. Stiles, P J. Chen, William F. Egelhoff Jr.
The out-of-plane angular dependence of the ferromagnetic resonance linewidth, Δ H is described by nearly angle-independent damping parameters. In the NiO-coupled films, however, the damping was found to depend strongly on magnetization orientation, with

Thermal Plasma Synthesis of Magnetic Nanoparticles

October 16, 2008
Author(s)
J H. Scott, S. A. Majetich, Z Turgut, M E. McHenry, K Chowdary, M I. Boulos
… bare and carbon-coated metal nanoparticles is presented. Magnetic nanoparticles composed of pure Fe, pure Co, and FeCo … Thermal Plasma Synthesis of Magnetic Nanoparticles …

Invar-like Behavior of Antiperovskite Mn 3+x Ni 1-x N Compounds

March 5, 2015
Author(s)
Sihao Deng, Ying Sun, Hui Wu, Qingzhen Huang, Jun Yan, Kewen Shi, Muhammad Imran Malik, Huiqing Lu, Lei Wang, Rongjin Huang, Laifeng Li, Cong Wang
The antiperovskite Mn 3+xNi 1-xN compounds have been synthesized and characterized by a variety of experimental techniques. After Mn doping at Ni site, both ferromagnetic characteristics and Invar-like effect were observed in the antiferromagnetic host

Magnetic Structures of Rare Earth Intermetallic Compounds RCuAs 2 (R = Pr, Nd, Tb, Dy, Ho, and Yb)

July 14, 2017
Author(s)
Yang Zhao, Jeffrey W. Lynn, Gohil S. Thakur, Zeba Haque, L. C. Gupta, A. K. Ganguli
… Ho and Yb) as a function of temperature to determine the magnetic structures and the order parameters. These compounds … superconductors, PrCuAs 2 develops a commensurate magnetic order with K = (0, 0, 0.5) below T N = 6.5(2) K. … a-b plane. TbCuAs 2 and HoCuAs 2 exhibit incommensurate magnetic structures below T N = 9.44(7) and 4.41(2) K. …

Antiferromagnetic Order and Spin-Canting Transition in the Corrugated Square Net Compound Cu 3 (TeO 4 )(SO 4 ):H 2 O

July 19, 2021
Author(s)
Zhi-Cheng Wang, Kulatheepan Thanabalasingam, Jan P. Scheifers, Alenna Streeter, Gregory T. McCandless, Jonathan N. Gaudet, Craig Brown, Carlo U. Segre, Julia Y. Chan, Fazel Tafti
Strongly correlated electrons in layered perovskite structures have been the birthplace of high-temperature superconductivity, spin liquid, and quantum criticality. Specifically, the cuprate materials with layered structures made of corner sharing square

A Quantum Monte Carlo Study of the Structural, Energetic, and Magnetic Properties of Two-Dimensional H and T phase VSe2

April 5, 2023
Author(s)
Daniel Wines, Juha Tiihonen, Kayahan Saritas, Jaron Krogel, Can Ataca
… literature. These discrepancies in the electronic and magnetic properties between both phases of 2D VSe2 are most … parameters of each phase being coupled closely to the magnetic and electronic properties. Specifically, the T and H … such as thermal annealing. Finally, we benchmarked the magnetic properties such as spin density and magnetic moment …

Ion-Gel-Gating-Induced Oxygen Vacancy Formation in Epitaxial La 0.5Sr d0.5^CoO^d3-d Films from in operando X-ray and Neutron Scattering

December 19, 2017
Author(s)
Jeff Walter, Guichuan Yu, Biqiong Yu, Alexander Grutter, Brian Kirby, Julie Borchers, Zhan Zhang, Hua Zhou, Turan Birol, Martin Greven, Chris Leighton
Ionic-liquid/gel-based transistors have emerged as an ideal means to accumulate high charge carrier densities at the surfaces of materials such as oxides, enabling control over electronic phase transitions. Substantial gaps remain in the understanding of

Magnetic Ordering induced by Interladder Coupling in the Spin-1/2 Heisenberg Two-leg Ladder Antiferromagnet C 9 H 18 N 2 CuBr 4

May 30, 2014
Author(s)
Tao Hong, K. P. Schmidt, K. Coester, F.F. Awwadi, M.M. Turnbull, Yiming Qiu, Jose Rodriguez Rivera, M. Zhu, X. Ke, C.P. Aoyama, Y. Takano, Huibo Cao, W. Tian, J. Ma, R. Custelcean, H.D. Zhou, M. Matsuda
… 4 . The material orders magnetically at Τ N =1.99(2)K, and magnetic excitations are accompanied by an energy gap of … it to a Neel-ordered phase without an assistance of a magnetic field. … Magnetic Ordering induced by Interladder Coupling in the …

Spintronics

September 20, 2016
Author(s)
Hideo Ohno, Mark D. Stiles, Bernard Dieny
Scope: This special issue covers recent developments in spintronics, where the spin degree of freedom of electrons is used to harness otherwise inaccessible capabilities. We have witnessed a wide range of progress, particularly in the past 10 years

Mutual phase-locking of microwave spin torque nano-oscillators

September 15, 2005
Author(s)
Shehzaad F. Kaka, Matthew Pufall, William Rippard, Thomas J. Silva, Stephen E. Russek, Jordan A. Katine
The spin torque effect that occurs in nanometre-scale magnetic multilayer devices can be used to generate steady- state microwave signals in response to a d.c. electrical current. This establishes a new functionality for magneto-electronic structures that

Pressure-induced volume-collapsed tetragonal phase of CaFe 2 As 2 as seen via neutron scattering

November 24, 2008
Author(s)
A. Kreyssig, Mark Green, Y. Lee, G. D. Samolyuk, Pawel Zajdel, Jeffrey Lynn, S. L. Bud'ko, M. S. Torikachvili, N. Ni, S. Nandi, Juscelino Leao, Sarah Poulton, D. N. Argyriou, B. N. Harmon, R. J. McQueeny, P. C. Canfield, A. I. Goldman
Recent investigations of the superconducting iron-arsenide families have highlighted the role of pressure, be it chemical or mechanical, in fostering superconductivity. Here we report that CaFe2As2 undergoes a pressure-induced transition to a nonmagnetic
Displaying 1151 - 1175 of 3361
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