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Search Publications

NIST Authors in Bold

Displaying 651 - 675 of 2320

Self-terminating Electrodeposition of Pt on WC Electrocatalysts

May 10, 2021
Author(s)
Thomas P. Moffat
Self-terminating electrochemical deposition is used to grow Pt nanoparticles on tungsten monocarbide (WC) from a pH 4 electrolyte containing 3 mmol/L K2PtCl4 - 0.5 mol/L NaCl. An unconventional potentiodynamic deposition program is used where nucleation is

A Distinct Spin Structure and Giant Baromagnetic Effect in MnNiGe Compounds with Fe-Doping

May 3, 2021
Author(s)
Feiran Shen, Houbo Zhou, Fengxia Hu, Jian-Tao Wang, Hui Wu, Qingzhen Huang, Jiazheng Hao, Zibing Yu, Yihong Gao, Yuan Lin, Yangxin Wang, Cheng Zhang, Zhuo Yin, Jing Wang, Sihao Deng, Jie Chen, Lunhua He, Tianjiao Liang, Jirong Sun, Tongyun Zhao, Baogen Shen
Spin structure of a magnetic system results from the competition of various exchange couplings. Pressure driven spin structure evolution, through altering interatomic distance and hence electronic structure, produces baromagnetic effect(BME), which has

A Controlled Vocabulary and Metadata Schema for Materials Science Data Discovery

April 29, 2021
Author(s)
Andrea M. Medina-Smith, Chandler Becker, Raymond L. Plante, Laura Bartolo, Alden A. Dima, James A. Warren, Robert Hanisch
The International Materials Resource Registries (IMRR) working group of the Research Data Alliance (RDA) was created to spur initial development of a federated registry system to allow for easier discovery and access to materials data. As part of this

Catalyst Enabled in Situ Linkage Reduction in Imine Covalent Organic Frameworks

April 29, 2021
Author(s)
Jiyun Hu, Federica Zanca, Gregory McManus, Isabella Riha, Huong Giang Nguyen, William Shirley, Collin Borcik, Benjamin Wylie, Mourad Benamara, Roger van Zee, Peyman Moghadam, M. Hassan Beyzavi
New linkages for covalent organic frameworks (COFs) have been continuously pursued by chemists as it serves as the structure and property foundation for the materials. Developing new reaction types or modifying known linkages have been the only two methods

Ambient-Temperature Hydrogen Storage via Vanadium(II)-Dihydrogen Complexation in a Metal-Organic Framework

April 28, 2021
Author(s)
David Jaramillo, Henry Jiang, Hayden Evans, Romit Chakraborty, Hiroyasu Furukawa, Craig Brown, Martin Head-Gordon, Jeffrey Long
The widespread implementation of H 2 as a fuel is currently hindered by the high pressures or cryogenic temperatures required to achieve reasonable storage densities. In contrast, the realization of materials that strongly and reversibly adsorb hydrogen at

Enhancing Superconductivity of Lu 5 Rh 6 Sn 18 by Atomic Disorder

April 19, 2021
Author(s)
A. Slebarski, M. Fijalkowski, M. M. Maska, J. Deniszczyk, P. Zajdel, Benjamin Trump, A. Yakovenko
For the number of skutterudite-related cage compounds such as cubic R 3M 4Sn 13 (R = Ca or La, M = transition d-electron metal) or tetragonal Y 5Rh 6Sn 18 we have previously reported the impact of various atomic defects in the crystal lattices on the

Cluster Morphology of Colloidal Systems with Competing Interactions

April 15, 2021
Author(s)
Nestor E. Valadez-Perez, Yun Liu, Ramon Castaneda-Priego
Reversible aggregation of purely short-ranged attractive colloidal particles leads to the formation of clusters with a fractal dimension that only depends on the second virial coefficient. The addition of a long-ranged repulsion to the potential modifies

Magnetic Particle Self-Assembly at Functionalized Interfaces

April 13, 2021
Author(s)
Apurve Saini, Katharina Theis-Brohl, Alexandros Koutsioubas, Kathryn L. Krycka, Julie Borchers, Max Wolff
We study the assembly of magnetite nanoparticles in water-based ferrofluids in wetting layers close to silicon substrates with different functionalization without and with an out-of-plane magnetic field. For particles of nominal sizes 5 nm, 15 nm and 25 nm

Role of low molecular weight polymers on the dynamics of silicon anodes during casting

April 13, 2021
Author(s)
Mary Burdette, Beth Armstrong, Ryan Murphy, Luke Heroux, Mathieu Doucet, Stephen Trask, Alexander Rogers, Gabriel Veith
This work probes the slurry architecture of a high silicon content electrode slurry with and without low molecular weight polymeric dispersants as a function of shear rate to mimic electrode casting conditions for poly(acrylic acid) (PAA) and lithium

Noncollinear Ferromagnetic Weyl Semimetal with Anisotropic Anomalous Hall Effect

March 24, 2021
Author(s)
Hung-Yu Yang, Bahadur Singh, Jonathan Gaudet, Baozhu Lu, Cheng-Yi Huang, Wei-Chi Chiu, Shin-Ming Huang, Baokai Wang, Faranak Bahrami, Bochao Xu, Jacob Franklin, Ilya Sochnikov, David Graf, Guangyong Xu, Yang Zhao, Christina Hoffman, Hsin Lin, Darius Torchinsky, Collin L. Broholm, Arun Bansil, Fazel Tafti

Exploring the First High Entropy Thin Film Libraries: Composition spread-controlled Crystalline Structure

March 19, 2021
Author(s)
Thi X. Nguyen, Yen-Hsun Su, Jason Hattrick-Simpers, Takahiro Nagata, Howard Joress, Kao-Shuo Chang, Suchismita Sarker, Apurva Mehta, Jyh-Ming Ting
Thin films of two types of high-entropy oxides (HEOs) have been deposited on 76.2 mm Si wafers using combinatorial sputter deposition. In one type of the oxides, (MgZnMnCoNi)Ox, all the metals have a stable divalent oxidation state and similar cationic

Molecular View on Mechanical Reinforcement in Polymer Nanocomposites

March 16, 2021
Author(s)
Ruikun Sun, Matthew Melton, Niloofar Safaie, Jr. Ferrier, Shiwang Cheng, Yun Liu, Xiaobing Zuo, Yangyang Wang
The microscopic origin of mechanical enhancement in polymer nanocomposites (PNCs) is investigated through the combination of rheology and small-angle neutron scattering. It is shown that in the absence of an extensive particle network, the molecular

Betraying excitonic processes and chemical bonding in MoS2 by x-ray-absorption near-edge structure and resonant-Auger electron emission

March 10, 2021
Author(s)
Joseph Woicik, Nicholas F. Quackenbush, Conan Weiland, Eric L. Shirley, Abdul K. Rumaiz, Michael T. Brumbach, James M. Ablett
Electron core-hole processes at absorption edges sport several signatures, primarily in the form of bound states and/or excitonic enhancement. Through analysis of the resonant-Raman Auger effect for the 2-dimensional transition-metal dichalcogenide MoS2

The OCEAN Project

March 10, 2021
Author(s)
Eric L. Shirley, John T. Vinson, Keith Gilmore
This chapter presents a high-level description of a suite of programs denoted by the acronym OCEAN (Obtaining Core Excitation spectra ab initio and with NBSE), where NBSE denotes the underlying NIST Bethe-Salpeter Equation program. The main computational

Origin of Magnetovolume Effect in a Cobaltite

March 8, 2021
Author(s)
Ping Miao, Zhijian Tan, Sanghyun Lee, Yoshihisa Ishikawa, Shuki Torii, Masao Yonemura, Akihiro Koda, Kazuki Komatsu, Shinichi Machida, Asami Sano-Furukawa, Takanori Hattori, Xiaohuan Lin, Kuo Li, Takashi Mochiku, Ryosuke Kikuchi, Chizuru Kawashima, Hiroki Takahashi, Qingzhen Huang, Shinichi Itoh, Ryosuke Kadono, Yingxia Wang, Feng Pan, Kunihiko Yamauchi, Takashi Kamiyama
Displaying 651 - 675 of 2320
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