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Displaying 2001 - 2025 of 3361

Effect of Pnictogen Height on Spin Waves in Iron Pnictides

May 28, 2014
Author(s)
Chenglin Zhang, Leland Harriger, Zhiping Yin, Weicheng Lv, Miaoyin Wang, Guotai Tan, Yu Song, D. L. Abernathy, Wei Tian, Takeshi Egami, Kristjan Haule, Gabriel Kotliar, Pengcheng Dai
We use inelastic neutron scattering to study spin waves in the antiferromagnetic ordered phase of iron pnictide NaFeAs throughout the Brillouin zone. Comparing with the well-studied AFe 2As 2 (A = Ca,Sr,Ba) family, spin waves in NaFeAs have considerably

Electronic properties of multilayer graphene

March 31, 2012
Author(s)
Hongki Min
In this chapter, we study the electronic structure of arbitrarily stacked multilayer graphene in the absence or presence of magnetic field. Energy band structure and Landau level spectrum are obtained using a pi-orbital continuum model with nearest

Demonstration of a Meissner-Effect Transition Edge Sensor

July 26, 2010
Author(s)
Solomon I. Woods, Stephen M. Carr, Timothy M. Jung, Adriaan C. Carter, Raju V. Datla
We have built and tested a transition edge sensor which monitors temperature change by measuring magnetic flux expulsion from a superconducting element. Flux change is sensed by a dc SQUID coupled to the element using a flux transformer in a gradiometer

A z-component magneto-resistive sensor

April 8, 2008
Author(s)
Fabio C. da Silva, Sean Halloran, Lu Yuan, David P. Pappas
A thin-film sensor is described that measures the component of the magnetic field perpendicular to the plane of the substrate (also called the z-component field.) The sensors are fabricated on anisotropically etched, V-shaped groves on Si(100) substrates
Displaying 2001 - 2025 of 3361
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