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Displaying 2901 - 2925 of 3362

Low Energy Diffuse Scattering Electron Spin Polarization Analyzer

January 1, 1986
Author(s)
John Unguris, Daniel T. Pierce, Robert Celotta
A new, compact (approximately fist sized), efficient electron-spin analyzer is described. It is based on low-energy (150 eV) diffuse scattering from a high-Z target, for example, an evaporated polycrystalline Au film opaque to the incident electron beam

Polarized 3HE Spin Filters for Neutron Science

February 12, 2014
Author(s)
Thomas R. Gentile, Wei-Chen N. Chen
The large spin dependence of the absorption cross section for neutrons by 3He gas provides a method to polarize neutron beams. For certain applications, such polarized 3He-based neutron "spin filters" have advantages over conventional neutron optical

Spin Transport at Interfaces with Spin-Orbit Coupling: Phenomenology

September 16, 2016
Author(s)
Mark D. Stiles, Vivek P. Amin
Spin transport remains poorly understood in multilayer systems with interfacial spin-orbit coupling. While the important consequences of interfacial spin-orbit scattering can be captured by a spin-dependent Boltzmann equation, currently they cannot be

The Potential of Highly Charged Ions: Possible Future Applications

September 1, 2007
Author(s)
John D. Gillaspy, Joshua M. Pomeroy, A C. Perrella, Holger Grube
This paper mirrors and provides references to an invited review talk delivered by the first author at the 13th International Conference on the Physics of Highly Charged Ions. It briefly updates and extends an earlier review given in 2001 [1].

Adjusting the Values of the Fundamental Constents

March 1, 2001
Author(s)
Peter J. Mohr, Barry N. Taylor
In order to compare theoretical predictions to experimental measurements in many basic studies and applications of physics, it is necessary to know the value of one or more of the fundamental physical constants, such as the electron mass, or energy

High resolution X-ray Spectra of the Time Evolution of Emission from Metastable Electronic States of Highly Charged Ni-like Ions

June 25, 2024
Author(s)
Timothy Burke, Endre Takacs, Dipti Dipti, Adam Hosier, Galen O'Neil, Hunter Staiger, Joseph N. Tan, Aung S. Naing, Joan Marler, Yuri Ralchenko
Metastable levels of highly charged ions that can only decay via highly forbidden transitions can have a significant effect on the properties of high temperature plasmas. For example the highly forbidden 3d10 J=0 - 3d94s ( 5 2 , 1 2 )J=3 magnetic octupole

Extracting the electronic structure of light elements in bulk materials through a Compton scattering method in the readily accessible hard X-ray regime

May 28, 2024
Author(s)
Veenavee Kothalawala, Tejas Guruswamy, orlando Quaranta, Umeshkumar Manibhai Patel, Andrey Yakovenko, keith taddei, Meiying Zhang, Kelsey Morgan, Joel Weber, Daikang Yan, Daniel Swetz, Ilja Makkonen, Hemantha Kumar Yeddu, Arun Bansil, Antonino Miceli, Johannes Nokelainen, Bernardo Barbiellini
… new possibilities for experiments at low-flux bending magnet synchrotron beamlines, and pave the way for the …

Perpendicular Anisotropy in Co/Pd Multilayers

October 12, 2021
Author(s)
J I. Hong, S Sankar, A. E. Berkowitz, William F. Egelhoff Jr.
The two principal mechanisms for explaining the perpendicular anisotropy in Co-Pd multilayers were investigated. These mechanisms are the broken symmetry at sharp Co surfaces, and the magnetostriction of interfacial Co-Pd alloys under stress due to epitaxy

Synthesis of Mixed-Valent Lanthanide Sulfide Nanoparticles

August 23, 2021
Author(s)
Pricilla Glaser, Orlando Stewart, Rida Atif, Dane Asuigui, Joel Swanson, Adam Biacchi, Angela R. Hight Walker, Gregory Morrison, Hans-Conrad zur Loye, Sarah Stoll
In targeting reduced valence lanthanides, we report the first nanoparticle synthesis of the mixed-valent ferromagnets Eu3S4 and EuSm2S4. Using divalent lanthanide halides with bis(trimethylsilyl)sulfide and oleylamine, we prepared nanoparticles of EuS

Dipole-Dipole Frequency Shifts in Multilevel Atoms

June 30, 2021
Author(s)
Andre Cidrim, Asier Pineiro Orioli, Christian Sanner, Ross B. Hutson, Jun Ye, Romain Bachelard, Ana Maria Rey
Dipole-dipole interactions lead to frequency shifts which are expected to limit the performance of next generation atomic clocks. In this work, we compute dipolar frequency shifts accounting for the intrinsic atomic multilevel structure in standard Ramsey

Broadband thermomechanically limited sensing with an optomechanical accelerometer

March 9, 2021
Author(s)
Feng Zhou, Yiliang Bao, Ramgopal Madugani, David Long, Jason J. Gorman, Thomas W. LeBrun
Cavity optomechanics has enabled precision measurements with unprecedented levels of sensitivity, including the detection of attonewton forces, nanoparticles, magnetic fields, and gravitational waves. In most cases, detection is performed in a narrow

Scalable microresonators for room-temperature detection of electron spin resonance from dilute, sub-nanoliter volume solids

October 28, 2020
Author(s)

Nandita S. Abhyankar, Amit K. Agrawal, Pragya R. Shrestha, Russell A. Maier, Robert D. McMichael, Jason P. Campbell, Veronika A. Szalai

Microresonators used for spin detection in volume-limited samples suffer from poor quality factors, which adversely affect sensitivity and ease of coupling to the microwave source. Here we adapt a metamaterial design with toroidal moment to confine

Thermally driven anomalous Hall effect transitions in FeRh

April 30, 2018
Author(s)
Adrian Popescu, Pablo Rodrigues-Lopez, Paul M. Haney, Lilia M. Woods
Materials exhibiting controllable magnetic phase transitions are currently in demand for many spintronics applications. Here we investigate from first principles the electronic structure and intrinsic anomalous Hall, spin Hall and anomalous Nernst response

State-of-the-art and trends for the SI traceable value assignment of the purity of peptides using the model compound angiotensin I

March 27, 2018
Author(s)
Ralf D. Josephs, Norbert Stoppacher, Adeline Daireaux, Tiphaine Choteau, Katrice Lippa, Karen W. Phinney, Steven Westwood, Robert Wielgosz
Accurate diagnosis, monitoring and treatment are cornerstones of a healthcare system and require reliable measurements. The traceability of measurement results to stated references, and the development of Reference Measurement Systems (RMS), provide

Valley blockade in a silicon double quantum dot

November 13, 2017
Author(s)
Justin K. Perron, Michael Gullans, Jacob Taylor, Michael Stewart, Neil M. Zimmerman
Electrical transport in double quantum dots (DQD) is useful for illuminating many interesting aspects of the carrier states in quantum dots. Here we show data comparing bias triangles (i.e., regions of allowed current in DQDs) at positive and negative bias

Interface Engineering for Nanoelectronics

August 16, 2017
Author(s)
Christina A. Hacker, Robert C. Bruce, Sujitra J. Pookpanratana
Innovation in the electronics industry is tied to interface engineering as devices increasingly incorporate new materials and shrink. Molecular layers offer a versatile means of tuning interfacial electronic, chemical, physical, and magnetic properties

An On/Off Berry Phase Switching with Circular Graphene Resonators

May 26, 2017
Author(s)
Fereshte Ghahari Kermani, Daniel T. Walkup, Christopher Gutierrez, Joaquin R. Nieva, Yue Y. Zhao, Jonathan E. Wyrick, Donat F. Natterer, William G. Cullen, Kenji Watanabe, Takashi Taniguchi, Leonid Levitov, Nikolai B. Zhitenev, Joseph A. Stroscio
Berry phase is an example of anholonomy, where the phase of a quantum state may not return to its original value after its parameters cycle around a closed path; instead the quantum system’s wavefunction may acquire a real measurable phase difference
Displaying 2901 - 2925 of 3362
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