Results 41 to 50 of about 141,351 (257)

Carbon Concentration Dependence of the Superconducting Transition Temperature and Structure of MgCxNi3

open access: yes, 2001
The crystal structure of the superconductor MgCxNi3 is reported as a function of carbon concentration determined by powder neutron diffraction. The single-phase perovskite structure was found in only a narrow range of carbon content, 0.88 < x < 1.0.
Hayward   +9 more
core   +1 more source

Selective Benzene Capture by Metal‐Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) hold significant potential for capturing benzene from air emissions and hydrocarbon mixtures in liquid phases. This capability stems from their precisely engineered structures, versatile chemistries, and diverse binding interactions.
Zongsu Han   +4 more
wiley   +1 more source

Polarized Neutron Laue Diffraction on a Crystal Containing Dynamically Polarized Proton Spins

open access: yes, 2012
We report on a polarized-neutron Laue diffraction experiment on a single crystal of neodynium doped lanthanum magnesium nitrate hydrate containing polarized proton spins.
Brandt, B. van den   +8 more
core   +1 more source

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

open access: yesAdvanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu   +11 more
wiley   +1 more source

Optical Alignment and Sample Positioning in Neutron Residual Stress Characterization

open access: yesYuanzineng kexue jishu
Neutron residual stress characterization involves measurement at three principal directions of the sample. However, the measurement of the third principal direction usually requires rotation of sample manually.
TIAN Gengfang1, GONG Hai2, LIU Xiaolong1, , LI Meijuan1, LI Yuqing1, LIU Yuntao3, CHEN Dongfeng1
doaj   +1 more source

Data Analysis and Processing Method for Two-dimensional Position Sensitive Detector of Neutron Texture Diffractometer at China Advanced Research Reactor

open access: yesYuanzineng kexue jishu, 2023
The neutron texture diffractometer has unique advantage in the texture research for the key materials in the fields of aerospace, transportation, nuclear industry and so on.
ZHU Guijie;LIU Xiaolong;TIAN Gengfang;HOU Yuhan;WANG Hongliang;YU Yanli;XUE Yaohui;LI Yuqing;LI Meijuan;SUN Kai;CHEN Dongfeng
doaj   +1 more source

Phase stability and structural temperature dependence in sodium niobate: A high resolution powder neutron diffraction study

open access: yes, 2010
We report investigation of structural phase transitions in technologically important material sodium niobate as a function of temperature on heating over 300-1075 K.
D. Vanderbilt   +8 more
core   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

open access: yesAdvanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda   +11 more
wiley   +1 more source

Anisotropic magnetic field responses of ferroelectric polarization in a trigonal multiferroic CuFe1-xAlxO2 (x=0.015)

open access: yes, 2009
We have investigated magnetic field dependences of a ferroelectric incommensurate-helimagnetic order in a trigonal magneto-electric (ME) multiferroic CuFe1-xAlxO2 with x=0.015, which exhibits the ferroelectric phase as a ground state, by means of neutron
Iwamoto, S.   +11 more
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang   +19 more
wiley   +1 more source

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