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Displaying 976 - 1000 of 3361

Interfacial spin-orbit torques

October 21, 2020
Author(s)
Vivek P. Amin, Paul M. Haney, Mark D. Stiles
Spin-orbit torques offer a promising mechanism to electrically control magnetization dynamics in nanoscale heterostructures. While spin-orbit torques occur predominately at interfaces, the physical mechanisms underlying these torques can originate in both

External Magnetic Field Effects on a Distorted Kagome Antiferromagnet

September 2, 2008
Author(s)
J.-H. Kim, Sungdae Ji, S.-H. Lee, B. Lake, Taner N. Yildirim, H. Nojiri, H. Kikuchi, K. Habicht, Yiming Qiu, K. Kiefer
… neutron scattering measurements under an external magnetic field, H, on the weakly coupled distorted kagom¿e … External Magnetic Field Effects on a Distorted Kagome Antiferromagnet …

Tuning Magnetic Confinement of Spin-Triplet Superconductivity

September 25, 2020
Author(s)
Wen-Chen Lin, Daniel J. Campbell, Sheng Ran, I-Lin Liu, Hyunsoo Kim, Andriy H. Nevidomskyy, David Graf, Nicholas Butch, Johnpierre Paglione
… spin-triplet superconductor, pressure, high magnetic field … Tuning Magnetic Confinement of Spin-Triplet Superconductivity …

Structural Studies of Magnetic C 60 /Cu Multilayers

February 6, 2020
Author(s)
J. E. Shoup, D. A. Arena, Julie Borchers, Brian Kirby, A. J. Caruana, C. J. Kinane, S. Langridge, M. Rogers, O. Cespedes
… Polarized neutron reflectivity, interfaces, magnetic C60 … Structural Studies of Magnetic C 60 /Cu Multilayers …

Advances in Magnetometry Through Miniaturization

October 12, 2021
Author(s)
A Edelstein, J Burnette, Greg Fischer, S F. Cheng, William F. Egelhoff Jr., Robert McMichael, E Nowak
Recent innovations may lead to magnetic sensors that are smaller, more sensitive and/or cost less than current magnetometers. Examples of this are the chip scale atomic magnetometer, magnetic tunnel junctions with MgO barriers, and a device for minimizing

Probing the Growth and Aging of Colloidal Cobalt Nanoparticles

June 11, 2009
Author(s)
Guangjun Cheng, Cindi L. Dennis, Robert D. Shull, Angela R. Hight Walker
We have combined transmission electron microscopy (TEM) and magnetic measurements to characterize the growth of colloidal cobalt (Co) nanoparticles during synthesis and their subsequent stability in air. During the growth, TEM measurements have shown the

Angular dependence of spin-orbit spin-transfer torques

April 6, 2015
Author(s)
Ki-Sueng Lee, Dongwook Go, Aurelien Manchon, Paul M. Haney, Mark D. Stiles, Hyun-Woo Lee, Kyung Jin Lee
In ferromagnet/heavy metal bilayers, an in-plane current gives rise to spin-orbit spin transfer torques. For two-dimensional free-electron and tight-binding models with Rashba spin-orbit coupling, these torques acquire nontrivial dependence on the

Einstein-de Haas effect in a NiFe film deposited on a microcantilever

September 18, 2006
Author(s)
Thomas Mitchell (Mitch) Wallis, John M. Moreland, Pavel Kabos
A new methods is presented for determining the magetomechanical ratio, g', in a thin ferromagnetic film deposited on a microcantilever via measurement of the Einstein-de Haas effect. An alternating magnetic field applied in the plane of the cantilever and

Voltage Versus Magnetic Field Measurements on Nb 3 Sn Wires

May 31, 2006
Author(s)
Loren F. Goodrich
… We measured voltage versus magnetic field (V-H}/I}) on commercial Nb 3 Sn wires. … Nb 3 Sn wires exhibit flux-jump instabilities at low magnetic fields, and low-noise V-H curves on these wires show … state) at currents much smaller than I c at the lower magnetic fields. The measured V-H curves and quench currents …

Rapid Production of ^87^Rb BECs in a Combined Magnetic and Optical Potential

August 31, 2009
Author(s)
Yu-Ju Lin, Abigail R. Perry, Robert L. Compton, Ian B. Spielman, James V. Porto
… ^87^Rb Bose-Einstein condensates. It is based on a magnetic quadrupole trap and a red detuned optical dipole … magneto-optical trap (MOT) and then capture the atom in a magnetic quadrupole trap and force rf evaporation. We then … combines the efficient capture of atoms from a MOT into a magnetic trap with the rapid evaporation of optical dipole …

Comment on "Frustrated Magnetization in Co Nanowires: Competition Between Crystal Anisotropy and Demagnetization Energy"

September 15, 2010
Author(s)
Kristof M. Lebecki, Michael J. Donahue
… This theory, which predicts a sinusoidal variation of the magnetization along the long axis of the wire, depends upon an assumption that "the magnetization is constant within a cross section of the … setting. For very thin wires, we show that a uniform magnetization configuration is the lowest energy state, which …

Symmetry and Correlations Underlying Hidden Order in URu 2 Si 2

January 26, 2015
Author(s)
Nicholas P. Butch, Michael E. Manley, Jason R. Jeffries, Marc Janoschek, Kevin Huang, M. Brian Maple, Ayman H. Said, Bogdan M. Leu, Jeffrey W. Lynn
The organization of correlated electrons in the Hidden Order (HO) phase of intermetallic URu 2Si 2 is a longstanding mystery. In this work, we study the symmetry by mapping the lattice and magnetic excitations via inelastic neutron and x-ray scattering

Magnetic Structure of the Conductive Triangular-Lattice Antiferromagnet PdCrO 2

March 11, 2014
Author(s)
Hiroshi Takatsu, Gwilherm Nenert, Hiroaki Kadowaki, Hideki Yoshizawa, Mechthild Enderle, Shingo Yonezawa, Yoshiteru Maeno, Jungeun Kim, Naruki Tsuji, Masaki Takata, Yang Zhao, Mark Green, Collin Broholm
… powder diffraction experiments in order to investigate the magnetic and crystal structures of the conductive layered … anomalous Hall effect. We revealed that the ground-state magnetic structure is a commensurate and nearly-coplanar 120° … Magnetic Structure of the Conductive Triangular-Lattice …

Magnetization textures in NiPd nanostructures

September 15, 2011
Author(s)
Jean-Yves Chauleau, Benjamin James McMorran, R. Belkhou, Nicolas Bergeard, Tevfik Mente?, Miguel Angel Nino, Andrea Locatelli, John Unguris, Stanislas Rohart, Jacques Miltat, Andre Thiaville
… We have observed peculiar magnetization textures in Ni80Pd20 nanostructures, by three … Magnetization textures in NiPd nanostructures …

Spin Transfer Torque for Continuously Variable Magnetization

December 1, 2006
Author(s)
Jiang Xiao, Andrew Zangwill, Mark D. Stiles
… adiabatic approximation, Domain wall, ferromagnet, magnetization dynamics, non-uniform magnetization, spin current, spin-flip scattering, … Spin Transfer Torque for Continuously Variable Magnetization …

Concentric transmon qubit featuring fast tunability and an anisotropic magnetic dipole moment

January 21, 2016
Author(s)
Jochen Braumuller, Martin O. Sandberg, Michael Vissers, Andre Schneider, Steffen Schlor, Lukas Grunhaupt, Hannes Rotzinger, Michael Marthaler, Alexander Lukashenko, Amadeus Dieter, Alexey V. Ustinov, Martin Weides, David P. Pappas
… presented qubit architecture features a strongly increased magnetic dipole moment as compared to conventional transmon … frequency, gradiometric SQUID loop, tomographic control, magnetic dipole moment, site-selective passive … qubit featuring fast tunability and an anisotropic magnetic dipole moment …

Topological Hall Effect Induced by Chiral Fluctuations in ErMn6Sn6

September 24, 2024
Author(s)
Kyle Fruhling, Alenna Streeter, Sougata Mardanya, Xiaoping Wang, Priya Baral, Oksana Zaharko, Igor Mazin, Sugata Chowdhury, William Ratcliff, Fazel Tafti
… Evidence of such a mechanism was found in the kagome magnet YMn6Sn6 where fluctuations arise from frustrated …
Displaying 976 - 1000 of 3361
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