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

Ferromagnetism01:31

Ferromagnetism

3.4K
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...
3.4K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

31.6K
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...
31.6K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

49.5K
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,...
49.5K
Colors and Magnetism03:02

Colors and Magnetism

14.5K
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...
14.5K
Valence Bond Theory02:42

Valence Bond Theory

11.6K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.6K
Imperfections in Crystal Structure: Stoichiometric Point Defects01:26

Imperfections in Crystal Structure: Stoichiometric Point Defects

62
Schottky defects arise when some lattice points in a crystal, such as those in NaCl, remain unoccupied, creating lattice vacancies without disturbing the overall electrical neutrality of the crystal. This defect is common in ionic crystals where the positive and negative ions are similar in size, as seen in sodium chloride and cesium chloride. The presence of Schottky defects enables the crystal to conduct electricity to a small extent through an ionic mechanism. Electric fields cause nearby...
62

You might also read

Related Articles

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

Sort by
Same author

Tuning Strain by Varying CaTiO<sub>3</sub> Thickness in Heteroepitaxially Grown La<sub>2/3</sub>Sr<sub>1/3</sub>MnO<sub>3</sub> Double-Clamped Resonators on Silicon.

ACS applied materials & interfaces·2026
Same author

Contemporary DFT: learning from traditional and recent trends for the development and assessment of accurate exchange-correlation functionals.

Physical chemistry chemical physics : PCCP·2026
Same author

Accuracy and Scaling Factors of Non-Empirical Double-Hybrid Density Functionals for Harmonic and Fundamental Frequencies (And ZPVE).

Journal of computational chemistry·2025
Same author

Energy Relaxation and Dynamics in the Correlated Metal Sr_{2}RuO_{4} via Terahertz Two-Dimensional Coherent Spectroscopy.

Physical review letters·2025
Same author

Non-medicinal oral contrast in upper abdominal MRI for MR-guided radiotherapy: A scoping review.

Radiography (London, England : 1995)·2025
Same author

Study of Sterically Crowded Alkanes: Assessment of Non-Empirical Density Functionals Including Double-Hybrid (Cost-Effective) Methods.

Chemphyschem : a European journal of chemical physics and physical chemistry·2024

Related Experiment Video

Updated: Mar 20, 2026

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

8.7K

Strain Control of Fermiology and Many-Body Interactions in Two-Dimensional Ruthenates.

B Burganov1, C Adamo2,3, A Mulder4

  • 1Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853, USA.

Physical Review Letters
|May 28, 2016
PubMed
Summary

Epitaxial strain tunes quantum interactions and Fermi surface topology in superconductors like Sr_{2}RuO_{4}. This strain manipulation offers a disorder-free method to control emergent properties and superconductivity in correlated materials.

More Related Videos

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

12.8K
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

15.1K

Related Experiment Videos

Last Updated: Mar 20, 2026

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

8.7K
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

12.8K
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

15.1K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Materials

Background:

  • Spin-triplet superconductors exhibit complex quantum many-body interactions.
  • Fermi surface topology significantly influences superconducting properties.
  • Sr_{2}RuO_{4} and Ba_{2}RuO_{4} are isoelectronic materials with potential for tunable electronic properties.

Purpose of the Study:

  • To investigate the effect of epitaxial strain on Fermi surface topology and quantum many-body interactions.
  • To explore the use of epitaxial strain as a method for manipulating superconductivity in correlated materials.
  • To understand the relationship between strain, electronic structure, and emergent phenomena.

Main Methods:

  • Oxide molecular beam epitaxy (MBE) for controlled thin-film growth.
  • In situ angle-resolved photoemission spectroscopy (ARPES) for probing electronic structure.
  • Transport measurements to characterize superconducting and electronic properties.

Main Results:

  • Epitaxial strain successfully manipulated Fermi surface topology and quantum many-body interactions.
  • Observed critical fluctuations near the topological transition of the γ Fermi surface sheet.
  • Quasiparticle mass enhancement increased monotonically with increasing Ru-O bond distance.

Conclusions:

  • Epitaxial strain provides a powerful, disorder-free tool for tuning emergent properties in correlated materials.
  • Strain engineering can control quantum many-body interactions and potentially enhance superconductivity.
  • This approach opens new avenues for designing and optimizing novel superconducting materials.