Works (20)

Updated: July 5th, 2023 15:43

2021 article

Higher Nitriding Efficiency in Ultrafine-Grained Iron Processed by Ultrasonic Nanocrystal Surface Modification

Zhao, J., Ren, Z., Sang, X., Liu, Y., Wang, G. X., Dong, Y., & Ye, C. (2021, August 26). METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE.

By: J. Zhao*, Z. Ren*, X. Sang n, Y. Liu n, G. Wang*, Y. Dong*, C. Ye*

Source: Web Of Science
Added: September 7, 2021

2018 journal article

Super Charge Separation and High Voltage Phase in NaxMnO2

ADVANCED FUNCTIONAL MATERIALS, 28(50).

author keywords: magnetic properties of sodium manganese oxides; Na ion batteries; novel high-voltage phases; reversible asymmetric structural evolutions; super charge-separations
TL;DR: It is shown that, surprisingly, at lower Na compositions of 5/8 > x ≥ 1/18 the phase evolution pathway of Na x MnO2 upon Na deintercalation shows a unique phenomenon of super charge separation, where the Mn3+ and Mn4+ ions fully charge-separate into charge superplanes formed by succession of charge stripes in the third dimension. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: February 11, 2019

2016 journal article

A numerical model for multiple detector energy dispersive X-ray spectroscopy in the transmission electron microscope

ULTRAMICROSCOPY, 164, 51–61.

By: W. Xu n, J. Dycus n, X. Sang n & J. LeBeau n

author keywords: Energy dispersive X-ray spectroscopy (EDS); Super-X; Detector collection angle; X-ray absorption correction; Shadowing; Spurious X-rays
TL;DR: A numerical approach to model a four quadrant energy dispersive X-ray spectrometer in the transmission electron microscope shows that this comprehensive model accurately predicts absolute counts and intensity ratios as a function of specimen tilt and position. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Characterizing the response of a scintillator-based detector to single electrons

ULTRAMICROSCOPY, 161, 3–9.

By: X. Sang n & J. LeBeau n

author keywords: Single electron counting; Quantitative imaging; STEM; Scintillator; Detector response
TL;DR: The response of a high angle annular dark field scintillator-based detector to single electrons is reported and a method to accurately account for the electrons within the incident probe when conducting quantitative imaging is presented. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Competing Pathways for Nucleation of the Double Perovskite Structure in the Epitaxial Synthesis of La2MnNiO6

CHEMISTRY OF MATERIALS, 28(11), 3814–3822.

By: S. Spurgeon*, Y. Du*, T. Droubay*, A. Devaraj*, X. Sang n, P. Longo, P. Yan*, P. Kotula* ...

Source: Web Of Science
Added: August 6, 2018

2016 journal article

Evolution of Irradiation-Induced Vacancy Defects in Boron Nitride Nanotubes

SMALL, 12(6), 818–824.

By: G. Cheng n, S. Yao n, X. Sang n, B. Hao*, D. Zhang*, Y. Yap*, Y. Zhu n

author keywords: boron nitride; nanotubes; electron irradiation; TEM; irradiation-induced defects; vacancy defects
TL;DR: Irradiation-induced vacancy defects in multiwalled (MW) boron nitride nanotubes are investigated via in situ high-resolution transmission electron microscope operated at 80 kV, with a homogeneous distribution of electron beam intensity. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Influence of experimental conditions on atom column visibility in energy dispersive X-ray spectroscopy

Ultramicroscopy, 171, 1–7.

By: J. Dycus, W. Xu, X. Sang, A. D'Alfonso, Z. Chen, M. Weyland, L. Allen, S. Findlay, J. LeBeau

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

Physical Mechanisms behind the Field-Cycling Behavior of HfO2-Based Ferroelectric Capacitors

ADVANCED FUNCTIONAL MATERIALS, 26(25), 4601–4612.

By: M. Pesic*, F. Fengler*, L. Larcher*, A. Padovani*, T. Schenk*, E. Grimley n, X. Sang n, J. LeBeau n ...

author keywords: FeCAP; ferroelectric HfO2; modeling; phase-change
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Quantitative atomic resolution elemental mapping via absolute-scale energy dispersive X-ray spectroscopy

ULTRAMICROSCOPY, 168, 7–16.

By: Z. Chen*, M. Weyland*, X. Sang n, W. Xu n, J. Dycus n, J. LeBeau n, A. D'Alfonso*, L. Allen*, S. Findlay*

author keywords: Scanning transmission electron microscopy (STEM); Energy dispersive X-ray (EDX) spectroscopy; Atomic-resolution mapping; Elemental quantification
TL;DR: Quantitative agreement on an absolute scale is demonstrated between experiment and simulation for two-dimensional, atomic-resolution elemental mapping via energy dispersive X-ray spectroscopy, and it is emphasized that simple column-by-column analysis requires a choice of sample thickness that compromises between being thick enough to yield a good signal-to-noise ratio and thin enough that the overwhelming majority of the EDX signal derives from the column on which the probe is placed, despite strong electron scattering effects. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Structural Changes Underlying Field-Cycling Phenomena in Ferroelectric HfO2 Thin Films

ADVANCED ELECTRONIC MATERIALS, 2(9).

author keywords: ferroelectrics; hafnium oxide; impedance spectroscopy; scanning transmission electron microscopy; thin films
Source: Web Of Science
Added: August 6, 2018

2016 conference paper

Ultrasonic nanocrystal surface modification assisted nitriding: An experimental study

Proceedings of the ASME 11th International Manufacturing Science and Engineering Conference, 2016, vol 2.

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Accurate Nanoscale Crystallography in Real-Space Using Scanning Transmission Electron Microscopy

MICROSCOPY AND MICROANALYSIS, 21(4), 946–952.

By: J. Dycus n, J. Harris n, X. Sang n, C. Fancher n, S. Findlay*, A. Oni n, T. Chan n, C. Koch n ...

author keywords: scanning transmission electron microscopy; atomic resolution spectroscopy; nanoscale metrology; Bi2Te3
TL;DR: It is shown that the incorporation of Se into Bi2Te3 causes charge redistribution that anomalously increases the van der Waals gap between building blocks of the layered structure. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Direct observation of charge mediated lattice distortions in complex oxide solid solutions

APPLIED PHYSICS LETTERS, 106(6).

By: X. Sang n, E. Grimley n, C. Niu n, D. Irving n & J. LeBeau n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Large area strain analysis using scanning transmission electron microscopy across multiple images

APPLIED PHYSICS LETTERS, 106(1).

By: A. Oni n, X. Sang n, S. Raju*, S. Dumpala*, S. Broderick*, A. Kumar*, S. Sinnott*, S. Saxena*, K. Rajan*, J. LeBeau n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2015 journal article

On the structural origins of ferroelectricity in HfO2 thin films

APPLIED PHYSICS LETTERS, 106(16).

Source: Web Of Science
Added: August 6, 2018

2015 journal article

Solid state amorphization of nanocrystalline nickel by cryogenic laser shock peening

JOURNAL OF APPLIED PHYSICS, 118(13).

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Spin-driven ordering of Cr in the equiatomic high entropy alloy NiFeCrCo

APPLIED PHYSICS LETTERS, 106(16).

By: C. Niu n, A. Zaddach n, A. Oni n, X. Sang n, J. Hurt*, J. LeBeau n, C. Koch n, D. Irving n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Atom Column Indexing: Atomic Resolution Image Analysis Through a Matrix Representation

MICROSCOPY AND MICROANALYSIS, 20(6), 1764–1771.

By: X. Sang n, A. Oni n & J. LeBeau n

author keywords: scanning transmission electron microscopy (STEM); projective standard deviation; atom column fitting; image analysis; atomic resolution
TL;DR: An approach to map atomic resolution images into a convenient matrix representation through the combination of two-dimensional Gaussian fitting and the projective standard deviation enables a myriad of direct analyses, such as mapping atom column properties and correlating long-range atom column pairs. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Ferroelectric phenomena in Si-doped HfO2 thin films with TiN and Ir electrodes

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 32(3).

By: P. Lomenzo, P. Zhao, Q. Takmeel, S. Moghaddam, T. Nishida, M. Nelson, C. Fancher, E. Grimley ...

Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Revolving scanning transmission electron microscopy: Correcting sample drift distortion without prior knowledge

ULTRAMICROSCOPY, 138, 28–35.

By: X. Sang n & J. LeBeau n

author keywords: Scanning transmission electron microscopy (STEM); Revolving STEM (ReySTEM); Drift correction; Image distortion; Signal to noise ratio; Projective standard deviation (PSD)
TL;DR: It is demonstrated that RevSTEM simultaneously removes the need for a priori structure information to correct distortion, leads to a dramatically improved signal-to-noise ratio, and enables picometer precision and accuracy regardless of drift rate. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

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