An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The techniques used to grow polycrystalline thin films are known to produce a wide variety of structural defects. However, recent developments in thin-film photovoltaics have led to high photovoltaic conversion efficiencies despite large densities of grain
Albert F. Rigosi, Alireza R. Panna, Shamith U. Payagala, Mattias Kruskopf, Marlin E. Kraft, George R. Jones Jr., Bi Y. Wu, Hsin Y. Lee, Yanfei Yang, Jiuning Hu, Dean G. Jarrett, David B. Newell, Randolph E. Elmquist
P. M. Sarte, A. M. Arevalo-Lopez, M. Songvilay, D. Le, T. Guidi, V. Garcia-Sakai, S. Mukhopadhyay, S. C. Capelli, William D. Ratcliff, K. H. Hong, G. M. McNally, E. Pachoud, J. P. Attfield, C. Stock
The zero field structural and dynamic properties of the mixed valence ternary oxide α-CoV 3O 8 has been investigated using a combination of diffraction, DC susceptibility and inelastic neutron scattering measurements. The low temperature magnetic
Alta Y. Fang, Kenneth Kroenlein, Demian Riccardi, Alex Smolyanitsky
The ability to tune ionic permeation across nanoscale pores profoundly impacts diverse fields from nanofluidic computing to drug delivery. Here, we take advantage of complex formation between crown ethers and dissolved metal ions to demonstrate graphene
Aruna N. Ramanayaka, Ke Tang, Joseph Hagmann, Hyun S. Kim, Curt A. Richter, Joshua M. Pomeroy
Elimination of unpaired nuclear spins can result in low error rates for quantum computation; therefore, isotopically enriched 28Si is regarded as an ideal environment for quantum information processing devices. Using mass selected ion beam deposition
Vishal Panchal, Yanfei Yang, Guangjun Cheng, Jiuning Hu, Mattias Kruskopf, Chieh-I Liu, Albert Rigosi, Christos Melios, Angela R. Hight Walker, David B. Newell, Olga Kazakova, Randolph Elmquist
Confocal laser scanning microscopy (CLSM) is a non-destructive, highly-efficient optical characterization method for large-area analysis of graphene on different substrates, which can be applied in ambient air, does not require additional sample
S. Jang, N. Pouse, T. Keiber, B. D. White, S. M. Disseler, Jeffrey W. Lynn, J. C. Collini, M. Janoschek, F. Bridges, M. B. Maple
We characterize the properties of Ce 1-xYb xRhIn 5 single crystals with 0 less than or equal to} x less than or equal to} 1 using measurements of powder x-ray diffraction (XRD), energy dispersive x-ray spectroscopy (EDS), electrical resistivity, magnetic
Galan Moody, Takeshi Suzuki, Rohan Singh, Marc Assman, Manfred Bayer, Arne Ludwig, Andreas Wieck, Steven T. Cundiff
The dephasing mechanisms of p-shell and s-shell excitons in an InAs self-assembled quantum dot ensemble are examined using two-dimensional coherent spectroscopy (2DCS). 2DCS provides a comprehensive picture of how the energy level structure of dots affects
Slavomir Nemsak, Evgheni Strelcov, Hongxuan Guo, Brian Hoskins, Tomas Duchon, D Muller, Alexander Yulaev, Ivan Vlassiouk, Alexander Tselev, Andrei Kolmakov
Recent developments in environmental and liquid cells equipped with electron transparent graphene windows have enabled traditional surface science spectromicroscopy tools, such as XPS, PEEM, and SEM to be applied to study solid-liquid and liquid-gas
Michael Schneider, Christine A. Donnelly, Stephen E. Russek, Burm Baek, Matthew Pufall, Pete Hopkins, William Rippard
Many neuromorphic hardware technologies are being explored for their potential to increase the efficiency of computing certain problems, and thus facilitate machine learning with greater energy efficiency and or with more complexity. Among the technologies
Albert F. Rigosi, Mattias Kruskopf, Heather M. Hill, Hanbyul Jin, Bi Y. Wu, Philip E. Johnson, Siyuan Zhang, Michael J. Berilla, Angela R. Hight Walker, Christina A. Hacker, David B. Newell, Randolph E. Elmquist
Ronny J. Knut, Erna Delczeg-Czirjak, Somnath Jana, Justin M. Shaw, Hans T. Nembach, Yaroslav Kvashnin, Robert Stefaniuk, Rameez Malik, Patrik Grychtol, Dmitriy Zusin, Christian Gentry, Raghuveer Chimata, Manuel Pereiro, Johan Soderstrom, Emrah Turgut, Martina Ahlberg, Johan Akerman, H C. Kapteyn, Margaret M. Murnane, Dario A. Arena, Olle Eriksson, Olof Karis, Thomas J. Silva
Ni 0.8Fe 0.2 (Py) and Py alloyed with Cu exhibit intriguing ultrafast demagnetization behavior, where the Ni magnetic moment shows a delayed response relative to the Fe, an effect which is strongly enhanced by Cu alloying. We have studied a broad range of
M. Ramazanoglu, B. G. Ueland, D. K. Pratt, Leland Harriger, Jeffrey W. Lynn, G. Ehlers, G. E. Granroth, S. L. Bud'Ko, P. C. Canfield, D. Schlagel, A. I. Goldman, T. A. Lograsso, R. J. McQueeney
Although the precise mechanism is under, unconventional superconductivity (SC) is linked to the pairing of electrons by itinerant antiferromagnetic (AFM) spin fluctuations. Thus, unconventional SC often develops in magnetic metals on the cusp of static AFM