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

Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

26.1K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
26.1K
Metallic Solids02:37

Metallic Solids

18.2K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
18.2K
Ferromagnetism01:31

Ferromagnetism

2.4K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.4K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

41.3K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
41.3K
Structures of Solids02:22

Structures of Solids

13.9K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
13.9K
Colors and Magnetism03:02

Colors and Magnetism

11.5K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.5K

You might also read

Related Articles

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

Sort by
Same author

Competing quantum orders in 6R-TaS<sub>2</sub> revealed by pressure.

Nature communications·2026
Same author

Growth of large crystals of Janus phase RhSeCl using self-selecting vapour growth.

CrystEngComm·2026
Same author

Discovery of high-temperature charge order and time-reversal symmetry-breaking in the kagome superconductor YRu<sub>3</sub>Si<sub>2</sub>.

Nature communications·2025
Same author

Tailoring optical and ferroelectric properties in Sb<sub>1-<i>x</i></sub> Bi <sub><i>x</i></sub> SI van der Waals chalcohalides towards solar absorber applications.

Journal of materials chemistry. A·2025
Same author

Correlation between the dome-shaped superconducting phase diagram, charge order, and normal-state electronic properties in LaRu<sub>3</sub>Si<sub>2</sub>.

Nature communications·2025
Same author

Correction to "Electronic Structure of Few-Layer Black Phosphorus from μ-ARPES".

Nano letters·2025

Related Experiment Video

Updated: May 30, 2025

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.0K

Structural Modulation and Enhanced Magnetic Ordering in Incommensurate K1-CrSe2 Crystals.

Felix Eder1, Catherine Witteveen1,2, Enrico Giannini1

  • 1Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211 Geneva, Switzerland.

Journal of the American Chemical Society
|January 30, 2025
PubMed
Summary

Researchers discovered a new K1-xCrSe2 compound with unique structural modulation. This modulation enhances magnetic ordering, raising the transition temperature to 133 K, offering new ways to tune material properties.

More Related Videos

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

8.5K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

1.9K

Related Experiment Videos

Last Updated: May 30, 2025

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.0K
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

8.5K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

1.9K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Solid State Chemistry

Background:

  • Layered delafossite-type compounds and transition metal dichalcogenides exhibit triangular net structures.
  • These materials are key for studying structure-property relationships, particularly in magnetism.

Purpose of the Study:

  • To discover and characterize a novel K1-xCrSe2 compound.
  • To investigate the impact of structural modulation on magnetic properties.

Main Methods:

  • Single crystal growth using a K/Se self-flux.
  • X-ray diffraction analysis to determine crystal structure and incommensurate modulation.
  • Anisotropic magnetization measurements to probe magnetic ordering.

Main Results:

  • Discovery of K1-xCrSe2 (x ≈ 0.13) with an incommensurately modulated monoclinic crystal structure.
  • Structural modulation, rationalized by a 3+1D model, compensates for K under-stoichiometry and creates undulations in CrSe2 layers.
  • A transition to long-range magnetic order was observed at TN = 133 K, significantly higher than in related compounds.

Conclusions:

  • The novel K1-xCrSe2 compound exhibits unique structural and magnetic properties.
  • Structural modulation is a viable strategy for tuning the magnetic transition temperature in layered materials.
  • This work opens new avenues for designing materials with tailored magnetic behaviors.