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Search Publications

NIST Authors in Bold

Displaying 401 - 425 of 3361

Engineering Magnetic Anisotropy and Emergent Multidirectional Soft Ferromagnetism in Ultrathin Freestanding LaMnO 3 Films

May 24, 2022
Author(s)
Qinwen Lu, Zhiwei Liu, Qun Yang, Hui Cao, Purnima P. Balakrishnan, Qing Wang, Long Cheng, Yalin Lu, Jian-Min Zuo, Hua Zhou, Patrick Quarterman, Shinichiro N. Muramoto, Alexander Grutter, Hanghui Chen, Xiaofang Zhai
… Owing to their small coercive fields and weak magnetic anisotropy, soft ferromagnetic films are extremely … thickness is reduced to 4 nm. We argue that the vanishing magnetic anisotropy between the two directions is a consequence of two coexisting magnetic easy-axes in different atomic layers of the LaMnO3 …

Nanometer Positional Control using Magnetic Suspension for Vacuum-to-Air Mass Metrology

July 2, 2018
Author(s)
Nicholas A. Vlajic, Melissa L. Davis, Corey A. Stambaugh
… explains the control scheme that is to be used in the Magnetic Suspension Mass Comparator, an instrument designed … More specifically, the control system is used to apply a magnetic force between two chambers to magnetically suspend … system, used PID-based control with measurements of the magnetic field as the control signal. Here, we implement …

Lateral Magnetically Modulated Multilayers by Combining Ion Implantation and Lithography

March 1, 2017
Author(s)
Enric Menendez, Hiwa Modarresi, Claire Petermann, Josep Nogues, Neus Domingo, Haoliang Liu, Brian Kirby, Amir Syed Mohd, Zahir Salhi, Earl Babcock, Stefan Mattauch, Chris Van Haesendonck, Andre Vantomme, Kristiaan Temst
… lateral multilayers. A laterally, compositionally and magnetically, modulated microscale patter consisting of … Lateral Magnetically Modulated Multilayers by Combining Ion …

The Role of Inclusions in U-Pb and Sm-Nd Garnet Geochronology: Stepwise Dissolution Experiments and Grace Uranium Mapping by Fission Track Analysis

January 1, 1996
Author(s)
C.P. Dewolf, Cynthia J. Zeissler, A.N. Halliday, K. Mezger, E.J. Essene
… However, the budgets of uranium, lead, samarium, and neodymium in garnet separates from metamorphic rocks may be … and zircon in the budgets of uranium, lead, samarium, and neodymium in garnets used for U-Pb and Sm-Nd chronology. … USA) have the majority of their uranium, samarium, neodymium, and radiogenic lead (Pb*) hosted by …

Characterization of high-temperature superconducting conductor on round core cables in magnetic fields up to 20 T

February 13, 2013
Author(s)
Daniel C. van der Laan, Patrick D. Noyes, Miller E. George, Hubertus W. Weijers, Willering P. Gerard
… next generation of high-field magnets that will operate at magnetic fields substantially above 20 T, or at temperatures … the first tests of CORC magnet cables in liquid helium in magnetic fields of up to 20 T. A record critical current I c … J e ever reported for a superconducting cable at such high magnetic fields. Additionally, the first magnet wound from an …

Neutron Scattering Study of Magnetic Anisotropy in the Tetragonal Antiferromagnet Bi 2 CuO 4

April 26, 2021
Author(s)
Bo Yuan, Nicholas Butch, Guangyong Xu, Barry Winn, J. P. Clancy, Young-June Kim
… We report neutron scattering study of low energy magnetic excitations in S =1/2 quantum magnet Bi 2 CuO 4 with … of a small anisotropy within the easy plane. Since any magnetic anisotropy is forbidden by symmetry within the … Neutron Scattering Study of Magnetic Anisotropy in the Tetragonal Antiferromagnet Bi 2 …

Magnetic Field Landscapes Guiding the Chemisorption of Diamagnetic Molecules

September 23, 2016
Author(s)
Cherno Jaye, Tobias Weidner, J. E. Baio, A. P. Hitchcock, Daniel Fischer
… molecule sub-monolayers on a surface can be influenced by magnetic stray field landscapes emerging from artificially fabricated magnetic domains and domain walls. The directed local … magnetic stray field landscapes, diamagnetic molecules, … Magnetic Field Landscapes Guiding the Chemisorption of …

Wafer-Level Electrically Detected Magnetic Resonance:Magnetic Resonance in a Probing Station

March 20, 2018
Author(s)
Duane J. McCrory, Mark Anders, Jason Ryan, Pragya Shrestha, Kin P. Cheung, Patrick M. Lenahan, Jason Campbell
… technique that incorporates an electrically detected magnetic resonance (EDMR) spectrometer within a conventional … the wafer level. Our novel approach replaces the standard magnetic resonance microwave cavity or resonator with a small … EDMR, wafer level, semicondcutor defects, magnetic resonance spectroscopy, reliability …

Relaxation measurements of an MRI system phantom at low magnetic field strengths

May 20, 2023
Author(s)
Michele Martin, Kalina Jordanova, Anthony Kos, Stephen E. Russek, Katy Keenan, Karl Stupic
… MnCl 2 solutions from the ISMRM/NIST system phantom at low magnetic field strengths of 6.5 mT, 64 mT and 550 mT. … NiCl 2 solutions showed little change in T 1 and T 2 with magnetic field strength, and both relaxation times decreased … an increase in T 1 and a decrease in T 2 with increasing magnetic field strength, and both T 1 and T 2 increased with …

Low-frequency noise measurements on commercial magnetoresistive magnetic field sensors

May 17, 2005
Author(s)
Nathan Stutzke, Stephen E. Russek, David P. Pappas, Mark Tondra
… 0.1 Hz to 10 kHz on a variety of commercially available magnetic sensors. The types of sensors investigated include … effect devices. The 1/f noise components of electronic and magnetic origin are identified by measuring sensor noise and sensitivity at various applied magnetic fields. Commercial magnetometers typically consist …

Interfacial Alloying Contributions to the Magnetic Proximity Effect in Pt/Dysprosium Iron Garnet

August 12, 2025
Author(s)
Miela J. Gross, Javier Herrero-Martin, Sergio Valencia, Alexander Grutter, Julie Borchers, Yongseong Choi, Gilberto Fabbris, Allison Kaczmarek, Alexander E. Kossak, Jackson Bauer, Subhajit Kundu, Supriya Ghosh, K. A. Mkhoyan, Angela Wittmann, Caroline A. Ross
… The magnetic proximity effect (MPE) plays an important role in … between the deposition of the two layers, finding that the magnetic moment present in the Pt layer scales with the … not exhibit an MPE. Here we investigate the origin of the magnetic moment in the Pt layer using x-ray absorption …

Underlayer Effect on Perpendicular Magnetic Anisotropy in Co(sub20)Fe(sub60)B(sub20)/MgO

July 1, 2016
Author(s)
Andrew P. Chen, Yury Y. Iunin, S F. Cheng, Robert D. Shull
… Perpendicular Magnetic Tunneling Junctions (pMTJs) with Ta\CoFeB\MgO have … the underlayer on the formation of the CoFeB perpendicular magnetic anisotropy (PMA) are still not well understood. Here … Underlayer Effect on Perpendicular Magnetic Anisotropy in Co(sub20)Fe(sub60)B(sub20)/MgO …

Electric-Field Manipulation of Magnetic Chirality in a Homo-Ferro-Rotational Helimagnet

September 4, 2024
Author(s)
Junjie Yang, Masaaki Matsuda, Trevor Tyson, Joshua Young, William Ratcliff, Yunpeng Gao, Dimuthu Obeysekera, Xiaoyu Guo, Rachel Owen, Liuyan Zhao, Sang-Wook Cheong
… TFR of ≈573 K. Furthermore, RFSO exhibits a chiral helical magnetic structure with switchable ferroelectric polarization … Importantly, external electric fields can induce a single magnetic domain state and manipulate its magnetic chirality. The findings suggest that the search for …

Optical evidence of the chiral magnetic anomaly in the Weyl semimetal TaAs

March 4, 2020
Author(s)
Antonio L. Levy, Andrei Sushkov, Fengguang Liu, Bing Shen, Ni Ni, Howard D. Drew, Gregory Jenkins
… is observed in the Weyl material TaAs with electric and magnetic fields aligned along both the a- and c-axes. Free … of the chiral Landau level. Implications for the chiral magnetic effect in Weyl semimetals from the optical f-sum … "Weyl", "THz", "Optical", "Topological", "Magnetic", "Landau level", "FTIR" …

Single-Phase L10-Ordered High Entropy Thin Films with High Magnetic Anisotropy

June 28, 2024
Author(s)
Willie Beeson, Dinesh Bista, Huairuo Zhang, Sergiy Krylyuk, Albert Davydov, Gen Yin, Kai Liu
… properties. We explore the potential to achieve high magnetic anisotropy materials in single-phase HEA thin films. … Si/SiO2 substrate at room temperature exhibit soft magnetic properties with a coercivity on the order of 10 Oe. … entropy intermetallic phase after RTA, along with high magnetic anisotropy. These results demonstrate a promising …

Three-Dimensional Structure of Hybrid Magnetic Skyrmions Determined by Neutron Scattering

May 5, 2023
Author(s)
W. L. N. C. Liyanage, Nan Tang, Lizabeth J. Quigley, Julie A. Borchers, Alexander Grutter, Brian B. Maranville, Sunil Sinha, Nicolas Reyren, Sergio A. Montoya, Eric E. Fullerton, Lisa Debeer-Schmitt, Dustin A. Gilbert
… Magnetic skyrmions are topologically protected chiral spin … structures which present opportunities for next-generation magnetic data storage and logic information technologies. The … originates in the geometric configuration of the magnetic spins – more generally described as the structure. …

Magnetic Resonance Microscopy of Collagen Mineralization

August 1, 2008
Author(s)
Ingrid E. Chesnick, Jeffrey T. Mason, Anthony A. Giuseppetti, Naomi Eidelman, Kimberlee Potter
… A model mineralizing system was subjected to magnetic resonance microscopy (MRM), to investigate how water … magnetic resonance microscopy, magnetization transfer ratio, … Magnetic Resonance Microscopy of Collagen Mineralization …

Magnetic Resonance Imaging Biomarker Calibration Service: NMR Measurement of Isotropic Water Diffusion Coefficient

March 30, 2023
Author(s)
Stephen E. Russek, Katy Keenan, Karl Stupic, Nikki Rentz, Michael Boss, Kevin J. Coakley, Amanda Koepke, Cassandra Stoffer
… in reference materials and tissue mimics using nuclear magnetic resonance (NMR) techniques. This calibration is … phantoms (calibration devices) to verify the accuracy of magnetic resonance imaging (MRI)-based water diffusion … Biomarker, MRI, magnetic resonance imaging, water diffusion, NMR, nuclear …

Quantum Spin Ice Dynamics in the Dipole-Octupole Pyrochlore Magnet Ce 2 Zr 2 O 7

May 7, 2019
Author(s)
Jonathan Gaudet, E. M. Smith, J. Dudemaine, J. Beare, C.R.C. Buhariwalla, Nicholas Butch, M. B. Stone, A. I. Kolesniko, Guangyong Xu, D. R. Yahne, K. A. Ross, C. A. Marjerrison, J. D. Garrett, G. M. Luke, A. D. Bianchi, B. D. Gaulin
… Neutron scattering measurements on the pyrochlore magnet Ce 2 Zr 2 O 7 reveal an unusual crystal field … spin ice, octupole, frustrated magnet … Quantum Spin Ice Dynamics in the Dipole-Octupole Pyrochlore Magnet Ce 2 Zr 2 O 7 …

Field-induced magnetic phase transitions and the resultant giant anomalous Hall effect in the antiferromagnetic half-Heusler compound DyPtBi

September 21, 2020
Author(s)
H. Zhang, Y. L. Zhu, Yiming Qiu, W. Tian, H. B. Cao, Z. Q. Mao, X. Ke
… exotic quantum phenomena. In this paper, we report unusual magnetic and transport properties of antiferromagnetic … that DyPtBi hosts a delicate balance between two different magnetic ground states, which can be controlled by a moderate magnetic field. Furthermore, it exhibits giant anomalous Hall …

Lithographically patterned magnetic calorimeter x-ray detectors with integrated SQUID readout

March 11, 2004
Author(s)
Barry L. Zink, Kent D. Irwin, Gene C. Hilton, David P. Pappas, Joel Ullom, Martin Huber
… and performance of a fully lithographically patterned magnetic microcalorimeter X-ray detector. The detector is … chip as a low-noise SQUID which measures the change in the magnetic sensor film's magnetization as the film is heated by … superconducting pickup loop which also provides the magnetic field bias to the film. Absorption of 6 keV x-rays …
Displaying 401 - 425 of 3361
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