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Related Concept Videos

The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
Debye–Huckel–Onsager Conductance Equation01:28

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The Debye-Hückel-Onsager equation is a cornerstone of physical chemistry, providing a method to determine the molar conductance (Λm) and molar conductance at infinite dilution (Λ°m) for uni-univalent electrolytes.Uni-univalent electrolytes are electrolytes that dissociate in solution to produce one cation with a +1 charge and one anion with a –1 charge per formula unit.This equation addresses two crucial phenomena: the asymmetry effect and the electrophoretic effect. According to this equation,...
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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,...
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Related Experiment Video

Updated: Jun 3, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

Static structure factor and pair correlation function of graphene.

S S Z Ashraf1, Kavita N Mishra, A C Sharma

  • 1Physics Department, Shibli National P.G. College, Azamgarh-276001, Uttar Pradesh, India.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|March 16, 2011
PubMed
Summary
This summary is machine-generated.

This study investigates graphene

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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
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Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
14:52

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Published on: September 23, 2018

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Mechanics

Background:

  • Graphene exhibits unique electronic properties due to its massless Dirac fermions.
  • Understanding electron correlations is crucial for predicting graphene's behavior.

Purpose of the Study:

  • To theoretically investigate the static structure factor and pair correlation function in doped single graphene sheets.
  • To analyze the impact of local field effects on these properties.

Main Methods:

  • Utilized the random phase approximation (RPA) for density-density and spin-density response functions.
  • Employed regularization techniques for divergent dynamical polarization functions.
  • Incorporated the Hubbard approximation for local field effects.

Main Results:

  • The static structure factor depends on the dimensionless coupling constant (α).
  • High coupling constants indicate paramagnetic instability in the magnetic structure factor.
  • The simplistic Hubbard approximation reveals limitations in describing spin-dependent pair correlations.

Conclusions:

  • The findings highlight the importance of coupling strength and local field effects in doped graphene.
  • Suggests the need for advanced theoretical models and quantum Monte Carlo simulations for accurate correlation analysis.