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Physics

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Displaying 551 - 575 of 2291

Optimizing Magnetically Shielded Solenoids for Large Volume 3 He Neutron Spin Filters

October 2, 2020
Author(s)
Wangchun Chen, Md. Hassan, Ross Erwin, Shannon M. Watson, Thomas R. Gentile, G. L. Jones
An important consideration when designing a magnetostatic cavity for various applications is to maximize the ratio of the volume of field homogeneity to the overall size of the cavity. We report a design of a magnetically shielded solenoid that

Large Exchange Splitting in Monolayer Graphene Magnetized by an Antiferromagnet

September 30, 2020
Author(s)
Yingying Wu, Gen Yin, Lei Pan, Alexander Grutter, Quanjun Pan, Albert Lee, Dustin A. Gilbert, Julie A. Borchers, William D. Ratcliff, Ang Li, Xiao-dong Han, Kang L. Wang
Spin splitting in graphene has been identified as a key component for unlocking multifunctionality with low dissipation and long-distance spin transport. Magnetic proximity effects are an extremely promising route to realizing exchange splitting in

Quantum Versus Classical Spin Fragmentation in Dipolar Kagome Ice Ho 3 Mg 2 Sb 3 O 14

September 29, 2020
Author(s)
Zhiling Dun, Xiaojian Bai, Jospeh A. Paddison, Emily Hollingworth, Nicholas Butch, Clarina D. Cruz, Matthew Stone, Tao Hong, Franz Demmel, Martin Mourigal, Haidong Zhou
A promising route to realize entangled magnetic states combines geometrical frustration with quantum-tunneling effects. Spin-ice materials are canonical examples of frustration, and Ising spins in a transverse magnetic field are the simplest many-body

Electron-Phonon Coupling and Superconductivity in the Doped Topological Crystalline Insulator (Pb 0.5 Sn 0.5 _) 1-x In x Te

September 23, 2020
Author(s)
A. Sapkota, Y. Li, B. L. Winn, A. Podlesnyak, Guangyong Xu, Zhijun Xu, Kejing Ran, Tong Chen, Jian Sun, Jinsheng Wen, Lihua Wu, Jihui Yang, Qiang Li, G. D. Gu, J. M. Tranquada
We present a neutron scattering study of phonons in single crystals of (Pb 0.5Sn 0.5) 1−xIn xTe with x = 0 (metallic, but nonsuperconducting) and x = 0.2 (nonmetallic normal state, but superconducting). We map the phonon dispersions (more completely for x

Electron and x-ray focused beam-induced cross-linking in liquids: Toward rapid continuous 3D nanoprinting and interfacing using soft materials

September 15, 2020
Author(s)
Tanya Gupta, Evgheni Strelcov, Glenn Holland, Joshua D. Schumacher, Yang Yang, Mandy Esch, Vladimir Aksyuk, Patrick Zeller, Matteo Amati, Luca Gregoratti, Andrei Kolmakov
Additive fabrication of biocompatible 3D structures out of liquid hydrogel solutions has become pivotal technology for tissue engineering, soft robotics, biosensing, drug delivery etc. Electron and X-ray lithography are well suited to pattern nanoscopic

High-density polyethylene - an inert additive with stabilizing effects on organic field-effect transistors

September 11, 2020
Author(s)
Alberto Scaccabarozzi, James Basham, Liyang Yu, Paul Westcott, Weimin Zhang, Aram Amassian, Iain McCulloch, Mario Caironi, David J. Gundlach, Natalie Stingelin
Organic electronics technologies have attracted considerable interest over the last decades and have become promising alternatives to conventional, inorganic platforms for specific applications. To fully exploit the touted potential of plastic electronics

Observation of Quantum Anomalous Hall Effect and Exchange Interaction in Topological Insulator/Antiferromagnet Heterostructure

August 27, 2020
Author(s)
Lei Pan, Alexander Grutter, Peng Zhang, Xiaoyu Che, Tomohiro Nozaki, Alex Stern, Mike Street, Bing Zhang, Brian Casas, Qing L. He, Eun S. Choi, Steven M. Disseler, Dustin Gilbert, Gen Yin, Qiming Shao, Peng Deng, Yingying Wu, Xiaoyang Liu, Xufeng Kou, Sahashi Masashi, Xiaodong Han, Christian Binek, Scott Chambers, Jing Xia, Kang L. Wang
Integration of a quantum anomalous Hall insulator with a magnetically ordered material provides an additional degree of freedom through which we may control the resulting exotic quantum states. Here, we report an experimental observation of the quantum

Evolution of the Structural Transition in Mo 1-x W x Te 2

August 24, 2020
Author(s)
John A. Schneeloch, Yu Tao, Chunruo Duan, Masaaki Matsuda, Adam A. Aczel, Jaime A. Fernandez-Baca, Guangyong Xu, Jorg C. Neuefeind, Junjie Yang, Despina Louca
The composition dependence of the structural transition between the monoclinic 1T′ and orthorhombic T d phases in the Mo 1-xW xTe 2 Weyl semimetal was investigated by elastic neutron scattering on single crystals up to x ≅ 0:54. First observed in MoTe 2
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