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

Properties of Transition Metals02:58

Properties of Transition Metals

Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
Thermal Sigmatropic Reactions: Overview01:16

Thermal Sigmatropic Reactions: Overview

Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in 1,5-hexadiene, referred to as...
Bonding in Metals02:32

Bonding in Metals

Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
Structural Isomerism02:34

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Network Covalent Solids02:18

Network Covalent Solids

Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
Phase Transitions01:21

Phase Transitions

A phase transition is the process in which a substance changes from one state of matter to another, like from a solid to a liquid, liquid to gas, or vice versa, at a specific temperature and under given pressure conditions. This change is spontaneous and is affected by alterations in temperature and pressure. These parameters impact the strength of the forces between molecules (intermolecular forces) in the substance.During a phase transition, both the initial and final phases of the substance...

You might also read

Related Articles

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

Sort by
Same author

Nutritional and lifestyle supportive care recommendations for management of obesity with GLP-1 - based therapies: An expert consensus statement using a modified Delphi approach.

Obesity pillars·2026
Same author

Weight and cardiometabolic effects of a novel oral shape-shifting superabsorbent hydrogel capsule: Prespecified and exploratory analysis of the Epitomee capsule RESET study.

Obesity pillars·2025
Same author

The magnetic structure and spin-reorientation of ErGa.

Acta crystallographica Section B, Structural science, crystal engineering and materials·2024
Same author

Magnetic crystalline-symmetry-protected axion electrodynamics and field-tunable unpinned Dirac cones in EuIn<sub>2</sub>As<sub>2</sub>.

Nature communications·2021
Same author

Ferrimagnetism as a Consequence of Unusual Cation Ordering in the Perovskite SrLa<sub>2</sub>FeCoSbO<sub>9</sub>.

Inorganic chemistry·2018
Same author

Efficacy and safety of an oral device to reduce food intake and promote weight loss.

Obesity science & practice·2018

Related Experiment Video

Updated: May 30, 2026

Fabrication and Optimization of Type II Silicon Clathrate Films
06:53

Fabrication and Optimization of Type II Silicon Clathrate Films

Published on: October 14, 2025

Structural transitions in RNi(10)Si(2) intermetallics.

O Moze1, W A Kockelmann, M Hofmann

  • 1Dipartimento di Fisica, Università di Modena e Reggio Emilia, via G. Campi 213/a, 41100, Modena, Italy.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|August 6, 2011
PubMed
Summary

Neutron diffraction studies reveal that terbium and erbium nickel silicides undergo a high-temperature phase transition around 930°C. This transition involves an order-disorder transformation and ion displacement, aligning with the 3D Ising model.

More Related Videos

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications
06:15

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications

Published on: June 16, 2023

Related Experiment Videos

Last Updated: May 30, 2026

Fabrication and Optimization of Type II Silicon Clathrate Films
06:53

Fabrication and Optimization of Type II Silicon Clathrate Films

Published on: October 14, 2025

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications
06:15

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications

Published on: June 16, 2023

Area of Science:

  • Materials Science
  • Solid State Physics
  • Crystallography

Background:

  • Intermetallic compounds RFe(10)Si(2) and RCo(10)Si(2) adopt the ThMn(12) structure (I4/mmm).
  • Heavy rare earth RNi(10)Si(2) compounds crystallize in a P4/nmm structure, a subgroup of I4/mmm.

Purpose of the Study:

  • Investigate the high-temperature structural behavior of TbNi(10)Si(2) and ErNi(10)Si(2).
  • Characterize the order-disorder phase transition and associated phenomena.

Main Methods:

  • Neutron powder diffraction was employed to study TbNi(10)Si(2) and ErNi(10)Si(2).
  • Temperature-dependent lattice parameters were analyzed to determine thermal expansion coefficients.

Main Results:

  • A second-order order-disorder phase transition occurs at approximately 930°C, leading to random Ni and Si distribution.
  • A coupled second-order displacive transition involving R ion displacement along the c-axis was observed.
  • The critical exponent β = 0.31 for both transitions matches the 3D Ising model.

Conclusions:

  • The P4/nmm structure of RNi(10)Si(2) compounds exhibits complex high-temperature phase transitions.
  • The observed transitions and critical exponent provide insight into fundamental physical models.