Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

44.2K
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,...
44.2K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

27.4K
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...
27.4K
The Hall Effect01:30

The Hall Effect

2.7K
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
2.7K
Chirality at Nitrogen, Phosphorus, and Sulfur02:30

Chirality at Nitrogen, Phosphorus, and Sulfur

5.9K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.9K
Radicals: Electronic Structure and Geometry01:07

Radicals: Electronic Structure and Geometry

4.2K
This lesson delves into the geometry of a radical, which is influenced by the electronic structure of the molecule. The principle is similar to that of a lone pair, where the unpaired electron influences the geometry at the radical center.
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
4.2K
Radical Halogenation: Stereochemistry01:33

Radical Halogenation: Stereochemistry

3.9K
Stereochemistry is the study of the different spatial arrangements of atoms in a given molecule. The stereochemistry of radical halogenations can be understood from three different situations:
Halogenation to form a new chiral center:
3.9K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Reconstructing the Hamiltonian from the local density of states using neural networks.

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

Ferromagnetic superconductivity with excitonic Cooper pairs: Application to Γ-valley twisted semiconductors.

Science advances·2026
Same author

Anti-topological crystal and non-Abelian liquid in twisted semiconductor bilayers.

Nature communications·2026
Same author

Higher-dimensional Fermiology in bulk moiré metals.

Nature·2026
Same author

Chiral and topological superconductivity in isospin polarized multilayer graphene.

Nature communications·2025
Same author

Electrically controlled interlayer trion fluid in electron-hole bilayers.

Science (New York, N.Y.)·2025
Same journal

Demonstration of a quantum C-NOT gate in a time-multiplexed fully reconfigurable photonic processor.

Nature communications·2026
Same journal

Nonlinear quantum light source with van der Waals ferroelectric NbOX<sub>2</sub> (X = Br, I).

Nature communications·2026
Same journal

Antagonistic histone H2A variants and autonomous heterochromatin formation shape epigenomic patterns in Arabidopsis.

Nature communications·2026
Same journal

The long tail of nitrate pollution in groundwater challenges governance of global water quality.

Nature communications·2026
Same journal

Select microbial metabolites promote tau aggregation in a murine tauopathy model.

Nature communications·2026
Same journal

Warming climate has lengthened global intense tropical cyclone seasons.

Nature communications·2026
関連記事をすべて見る

関連する実験動画

Updated: Sep 9, 2025

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
06:35

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Published on: February 15, 2016

8.2K

チェーン数変数を持つホール結晶の設計

Nisarga Paul1, Gal Shavit2,3, Liang Fu4

  • 1Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA. npaul@mit.edu.

Nature communications
|August 29, 2025
PubMed
まとめ
この要約は機械生成です。

研究者は相互作用誘発のホール結晶のための新しいプラットフォームを開発しました.これは調節可能なトポロジカル応答を持つトポロジカル電子結晶の一種です. これらの新鮮な結晶は様々な条件において 独特の性質を示し 凝縮物質物理学の新たな道を開きます

さらに関連する動画

Optimization of Crystal Growth for Neutron Macromolecular Crystallography
12:29

Optimization of Crystal Growth for Neutron Macromolecular Crystallography

Published on: March 13, 2021

5.5K
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.2K

関連する実験動画

Last Updated: Sep 9, 2025

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
06:35

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Published on: February 15, 2016

8.2K
Optimization of Crystal Growth for Neutron Macromolecular Crystallography
12:29

Optimization of Crystal Growth for Neutron Macromolecular Crystallography

Published on: March 13, 2021

5.5K
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.2K

科学分野:

  • 凝縮物質物理学
  • 材料科学
  • 量子力学

背景:

  • トポロジカル・エレクトロニック・クリスタルは,トランスレーション・シンメトリーが破裂し,トポロジカル・レスポンスが非微妙である.
  • 相互作用によって引き起こされるトポロジカル・フェーズを理解することは,新しい電子特性にとって極めて重要です.

研究 の 目的:

  • 相互作用誘発のホール結晶を実現するための新しいプラットフォームと分析理論を導入する.
  • これらのトポロジック電子結晶におけるチェーン数 (C) の調節性を探求する.
  • これらの新しい電子状態の持続と相図を調査する.

主な方法:

  • 2次元の半導体を使って 磁場外で1次元の調節を行います
  • プラットフォームの実現のためにモエールや介電工学を使用します.
  • 分析理論を開発して 発生する現象を理解する

主要な成果:

  • チェーン数 (C) を含む様々なアニソトロピックホール結晶の実現を示した.
  • トポロジカルプロパティの磁場による調節性を示した.
  • これらのトポロジカル状態が連続した充填と磁場の範囲にわたって持続することを観察した.

結論:

  • 新しいプラットフォームは,相互作用誘発のホール結晶の作成と制御を可能にします.
  • 分析理論は,グローバル・フェーズ・ダイアグラムの統一された理解を提供します.
  • これらの発見は,形状に合わせた電子特性を有する材料を設計するための新しい可能性を開きます.