Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...
Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Atomic Force Microscopy01:08

Atomic Force Microscopy

Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
X-ray Crystallography02:18

X-ray Crystallography

The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Atomic Nuclei: Nuclear Spin01:08

Atomic Nuclei: Nuclear Spin

All atomic particles possess an intrinsic angular momentum, or 'spin'. Electrons, protons, and neutrons each have a spin value of ½, although protons and neutrons in nuclei may have higher half-integer spins owing to energetic factors.
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not contribute to...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A brush with danger: operative management of a through and through urethral and rectal injury following paintbrush insertion into the urethra.

Annals of the Royal College of Surgeons of England·2025
Same author

Effectiveness of non-pharmaceutical interventions as implemented in the UK during the COVID-19 pandemic: a rapid review.

Journal of public health (Oxford, England)·2025
Same author

Non-pharmaceutical interventions to reduce COVID-19 transmission in the UK: a rapid mapping review and interactive evidence gap map.

Journal of public health (Oxford, England)·2024
Same author

Imaging the acute abdomen in pregnancy: a radiological decision-making tool and the role of MRI.

Clinical radiology·2022
Same author

Tangent vector-based gradient method with l<sub>12</sub>-regularization: Iterative half thresholding algorithm for CS-MRI.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2021
Same author

Neutrophil-Lymphocyte Ratio and Absolute Lymphocyte Count as Prognostic Markers in Patients Treated with Curative-intent Radiotherapy for Non-small Cell Lung Cancer.

Clinical oncology (Royal College of Radiologists (Great Britain))·2021
Same journal

Topological properties of curved spacetime extended Su-Schrieffer-Heeger model.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Influence of lattice expansion on Cr ferromagnetism in Ce<sub>(1-x)</sub>La<sub>(x)</sub>CrGe<sub>3</sub>compounds revealed by atomic-scale measurements.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Bond-length-driven magnetic transition in quasi-one-dimensional CrSb<i>X</i><sub>3</sub>(<i>X</i>=S, Se).

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Anelasticity in MgAl2O4 spinel due to cation order-disorder.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

The influence of water on the dynamics of alternating polymers P(C<sub>8</sub>EG<sub>4</sub>) and P(C<sub>4</sub>EG<sub>4</sub>) by broadband dielectric spectroscopy.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

How surface curvature shapes water nanodroplets in air.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
See all related articles

Related Experiment Video

Updated: Jun 3, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
07:24

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis

Published on: May 10, 2021

Probing atomic structure in magnetic core/shell nanoparticles using synchrotron radiation.

S H Baker1, M Roy, S C Thornton

  • 1Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK. bak@le.ac.uk

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|March 10, 2011
PubMed
Summary
This summary is machine-generated.

Gas-phase synthesis of iron/copper and iron/gold nanoparticles reveals shell thickness impacts core structure. Thicker copper shells induce phase transitions in iron cores, while gold shells cause lattice distortions without alloying.

More Related Videos

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis
14:53

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis

Published on: February 3, 2018

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

Related Experiment Videos

Last Updated: Jun 3, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
07:24

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis

Published on: May 10, 2021

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis
14:53

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis

Published on: February 3, 2018

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

Area of Science:

  • Materials Science
  • Nanotechnology
  • Condensed Matter Physics

Background:

  • Core/shell nanoparticles are crucial for advanced applications.
  • Understanding atomic structure and phase transitions in nanoparticles is essential.
  • Gas-phase deposition offers precise control over nanoparticle synthesis.

Purpose of the Study:

  • To investigate the atomic structure of Fe/Cu and Fe/Au core/shell nanoparticles.
  • To determine the influence of shell thickness on the core's crystal structure.
  • To analyze interatomic distances and phase behavior in these bimetallic systems.

Main Methods:

  • Direct gas-phase deposition for synthesizing Fe/Cu and Fe/Au nanoparticles.
  • Extended Absorption Fine Structure (EXAFS) spectroscopy for detailed atomic structure analysis.
  • Characterization of core and shell structures, including crystal phase and interatomic distances.

Main Results:

  • Fe/Cu nanoparticles: A ~20-monolayer Cu shell induced a body-centered cubic (bcc) to face-centered cubic (fcc) transition in the Fe core.
  • Fe/Cu nanoparticles: Thinner Cu shells (1-2 monolayers) resulted in contracted interatomic distances and a bcc structure.
  • Fe/Au nanoparticles: The Fe core remained bcc, with lattice stretching observed. Thin Au shells (~2 monolayers) showed significant interatomic distance contraction, with no significant alloying.

Conclusions:

  • Shell thickness critically dictates the structural evolution of Fe/Cu and Fe/Au nanoparticles.
  • Distinct structural responses are observed between Cu and Au shells on Fe cores.
  • EXAFS is a powerful tool for elucidating atomic-level structural changes in nanomaterials.