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

Temperature Dependence on Reaction Rate02:55

Temperature Dependence on Reaction Rate

88.6K
The Collision Theory
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...
88.6K
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

374
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
374
Atomic Spectroscopy: Effects of Temperature01:27

Atomic Spectroscopy: Effects of Temperature

855
Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
855
Atomic Structure01:33

Atomic Structure

207.7K
Overview
207.7K
Position and Displacement01:31

Position and Displacement

25.0K
The position of an object defines its location relative to a convenient frame of reference at any particular time. A frame of reference is an arbitrary set of axes from which the position and motion of an object are described. Earth is often used as a frame of reference, and we often describe the position of an object as it relates to stationary objects on Earth. For example, a rocket launch could be described in terms of the position of the rocket with respect to Earth as a whole. On the other...
25.0K
Displacement Current01:19

Displacement Current

3.8K
Ampère's law, in its usual form, does not work in places where the current changes with time and is not steady. Thus, Maxwell suggested including an additional contribution, called the displacement current, Id, to the real conduction current I.
3.8K

You might also read

Related Articles

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

Sort by
Same author

Impact of Resonant Magnetic Perturbations on the Toroidal Location of the Runaway Electron Final Loss Strike Point.

Physical review letters·2026
Same author

First Demonstration of Resonant Pitch-Angle Scattering of Relativistic Electrons by Externally Launched Helicon Waves.

Physical review letters·2026
Same author

A near X-point charge exchange neutral spectroscopy (CENS) system for DIII-D.

The Review of scientific instruments·2024
Same author

Anisotropic atomic displacements, local orthorhombicity and anomalous local magnetic moment in Ba<sub>0.6</sub>K<sub>0.4</sub>Fe<sub>2</sub>As<sub>2</sub> superconductor.

Physical chemistry chemical physics : PCCP·2024
Same author

Effectiveness of ab initio molecular dynamics in simulating EXAFS spectra from layered systems.

Journal of synchrotron radiation·2024
Same author

Prognostic value of specific KRAS mutations in patients with colorectal peritoneal metastases.

ESMO open·2024

Related Experiment Video

Updated: Jan 23, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
11:10

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

12.4K

Temperature dependent local atomic displacements in NaSn2As2 system.

G M Pugliese1, F Stramaglia1, Y Goto2

  • 1Dipartimento di Fisica, Università di Roma 'La Sapienza', P. le Aldo Moro 2, 00185 Roma, Italy.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|June 22, 2019
PubMed
Summary
This summary is machine-generated.

The local structure of sodium tin arsenide (NaSn2As2) reveals temperature-dependent bonding. This suggests its mechanical exfoliation properties may vary with temperature, potentially linked to charge density wave instabilities.

More Related Videos

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation
09:12

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation

Published on: June 28, 2015

8.9K
Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
07:44

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

Published on: April 27, 2016

10.1K

Related Experiment Videos

Last Updated: Jan 23, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
11:10

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

12.4K
A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation
09:12

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation

Published on: June 28, 2015

8.9K
Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
07:44

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

Published on: April 27, 2016

10.1K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Solid-State Chemistry

Background:

  • Sodium tin arsenide (NaSn2As2) is a layered van der Waals (vdW) Zintl phase.
  • It exhibits low thermal conductivity and superconductivity.
  • Mechanical exfoliation is a key property for this material.

Purpose of the Study:

  • Investigate the temperature-dependent local structure of NaSn2As2.
  • Correlate local structural dynamics with physical properties like exfoliation.

Main Methods:

  • Extended X-ray Absorption Fine Structure (EXAFS) measurements at As K-edge and Sn K-edge.
  • Analysis of temperature-dependent mean square relative displacements (MSRD).
  • Determination of stretching force constants for various atomic bonds.

Main Results:

  • The material is intrinsically disordered, with local atomic distances consistent with average structure.
  • Sn-As bonds are the strongest and covalent; interlayer bonds are weaker vdW type.
  • An anomalous weakening of the As-Na bond below ~200 K, strengthening above, was observed.

Conclusions:

  • The temperature-dependent As-Na bond anomaly suggests mechanical exfoliation is temperature-dependent.
  • Interlayer atomic correlation anomalies may indicate a charge density wave-like instability.
  • Local structure and disorder significantly influence the physical properties of NaSn2As2.