Atomic and Condensed Matter Forum

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Join in expert discussion on atomic and condensed matter. Methods for atoms, molecules, condensed matter. This includes the structure of the atom, its energy states, and its interactions.
High School The structure of carbon graphite
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Graduate Understanding FWHM in XRD Analysis of Powder Patterns
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Graduate Measurement of Hydrogen 1s 4s transition frequency
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Graduate What is the meaning of a fully occupied state in the Fermi-Dirac distribution?
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Undergrad Field effect transistors question
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Undergrad Is this a eureka moment? .how do we know atoms exist?
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Graduate Dispersion relation for the free electron model
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Graduate Which plane of GaN gives an image of dots placed hexagonally
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Graduate Comparing the Energy Levels of Diatomic Molecules
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Graduate Transition dipole moment of diatomic molecules
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Graduate Question from Ashcroft/Mermin: electronic density eqn
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Graduate Precision measurements of atomic mass.
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Graduate Interband transition no photon
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Graduate What Is Gain Narrowing in Lasers?
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Graduate What is the physical meaning of the Thomas-Fermi vector?
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Graduate Fermi Surface squashed by potentials
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Graduate Exponentially damped dipole - line broadening
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Graduate Density of states, photonic crystal
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Graduate Problem about electronic structure
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Graduate What do you mean by Cooper pair in real space and k space?
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Graduate Snake instability and vortex pair
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Graduate Information about absorption cross section
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Graduate Fermi Level and density of states
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Graduate Can QED solve all solid state problems?
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Graduate Charge radius of a proton as a function of its mass
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Graduate How to dope a chemical compound?
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Graduate Surface Barrier in Type 2 Superconductors
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Graduate Understanding Real-World Emission Spectra: Are Solids Similar to Blackbodies?
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Undergrad How to find atomicity of solid elements as can't apply the gas law
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High School Superconductivity Research ideas
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Graduate Why do insulators appear transparent?
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Graduate Band Structure of a solid is not related to the size/doping?
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Undergrad Why removal of other electrons cause binding energy increase
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Graduate What is the biggest challenge to improve white LEDs?
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Graduate Superposition of energy levels
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Where can i get some semiconductor wire?
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Undergrad Why is silver the best conductor?
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Undergrad Bragg's Law Experiment: Questions and Answers
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Undergrad Ohmic vs Rectifying Contact: N+ & N-Type Semiconductors
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Undergrad Conductor Behavior at Absolute 0 Temperature
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Graduate Solving Coulomb Barrier: Calculating Energy w/e2 Units
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Graduate Calculation of total ionization cross section
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Undergrad Stokes Shift in Hydrogen Spectrum ?
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Graduate Explaining Band theory and Momentum Space to laymen?
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Undergrad Tungsten Permittivity: Properties & Values
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Undergrad Atoms and energy levels question
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Undergrad Importance of knowing the Curie temperature?
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Undergrad Why do resistivity and conductivity change with temperature?
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High School Green Laser Question: Explaining the Double Pumping Method
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Graduate Solving My Confusion: States in Energy Band
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Graduate Polarization and energy level transitions
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Undergrad What is the best referece book to study atomic structure?
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Undergrad Semiconductor Energy Gap: Silicon Explained
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High School Does the Water during sonoluminescence heat up?
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Undergrad Future of Moore's Law, Physics, and Nano Devices
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Graduate Fermi Energy's plausible, but why define Fermi Temperature?
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Graduate Fermi Level Concept: Probability & Forbidden Gap
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Graduate Solving Coupled ODEs with 4th Order Runge-Kutta Method
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Graduate Why is the effective mass of electron different for metals
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Graduate Nearly free electron model - band gap
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Graduate How to Determine the Basis Atom Positions in Bi2Sr2Ca2Cu3O10 for XRD Simulation?
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Graduate Mobility of 2D material, sigma=N*e*mu with N surface density
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Graduate Phonon Energy and Density of States
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Graduate Derivation of the Boltzmann distribution (Dr. David Tong)
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Graduate Why is black phosphorus semiconductor with direct bandgap?
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Graduate Molecular Orbital & Normal Modes
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Graduate Origin of current phase relation in Josepshon junction.
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Graduate Bond energy - (Force/ potential E vs interatomic separation)
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Graduate Simple (?) question regarding the Fermi Surface
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Graduate Is there a quantum mechanics theory for dynamics in QW planar VCSELs?
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Graduate Deviation of a gas from ideal gas behaviour
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Graduate What Causes Flat Dispersion of Charge Excitations in Solids?
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Graduate Understanding molecular absorption of light (UV-Vis spectroscopy)
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Graduate Gibbs Free Energy in Superconductors
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Graduate Determine the intensities of GaAs crystal planes
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Undergrad Why do the free electrons in the N-type want to diffuse?
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Graduate Calculation of Intensity of of AX crystals
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Graduate Determine Crystal structure of non-cubic crystal in XRD plot
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Graduate Differences between Boltzmann and Fermi-Dirac distributions
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Graduate Why Is the Length of the Reciprocal Lattice Vector Equal to 2π/d_hkl?
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Graduate Excited state line width and thermodynamics
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Graduate What are the physical implications of phonon softening?
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Graduate Can scotch tape method get film size larger than particles?
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Graduate Molecular Hydrogen absorption spectrum
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Graduate Finite square well potential numerical solution
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Graduate Expanding the Hamiltonian around a point of symmetry
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Graduate The Orbital and Spin Momenta of Light
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Graduate Analyzing GaAs Quantum Wells Emission Spectrum
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Undergrad Determine type of semiconductor from IV measurements of Schottky
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Graduate Is there any refined experimental result on flux quantum?
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Graduate Rules in determining family of planes in Hexagonal
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Undergrad How Do Orbital Interactions and Sigma Bonds Work in Methane?
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Graduate How is the Van der Waals interaction potential calculated?
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Graduate Understanding Band Theory: The Difference Between Conductors and Insulators
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Undergrad How can the radiation of gases be detected?
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Graduate Using Reciprocal to Determine Miller Indices
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Graduate What are the latest metallic superconductors discovered in the past decade?
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Graduate A question on weight function from Ashcroft and Mermin book
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Graduate Bulk Modulus and its derivative in a fcc lattice
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Graduate Question about band gaps in 2D
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