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.
Graduate Why doesn't Graphene have a band gap?
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Graduate Excitation to optically forbidden state
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Undergrad What happens when external magnetic field is applied to ferromagnetic materials?
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Graduate Can we have band gap anywhere?
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Graduate Schrodinger in a weak periodic potential
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Graduate Band Dispersion and Career Mobility
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Graduate (Bravais?) lattice with one angle equal 90
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Undergrad Complete List of 230 Space Groups in CSV Format for Easy Access
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Graduate 1 dimensional crystal at rest, a nucleus emits gamma ray of energy E,
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Graduate What's a general algorithm to build a supercell from a primitive cell?
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Graduate Caculating SAB overlap of two Kohn-Sham determinants
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Graduate Direction of Photo Electron Emission
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Graduate About Relaxation Time Approximation
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Undergrad Difference between X-ray Diffraction techniques and Raman spectroscopy
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Graduate Volume of Brillouin zone is the same as Fourier primitive parallelepip
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Graduate Derivation of LLG equation in polar coordinates
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Graduate Van der Waals Forces Between Particle and Surface
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Undergrad Emission Spectrum: Color Lines & Atomic Orbital Band
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Graduate [PChem] Maxwell-Boltzmann Molecule Mean Speed
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Graduate Mössbauer effect at low T versus high T, making phonons.
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Undergrad Why is there no current in a reversed biased diode?
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Graduate Delocalized holes and trapped holes (polarons)
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Graduate Relationship between phonon and plasmon
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Undergrad Semiconductor Notation: P-Type, N-Type Band Gap Materials
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Graduate X-ray Photoelectron Spin-orbit Splitting
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Graduate Where are the high symmetry points on a graphene band structure?
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Undergrad Representing Continuous Space in a Computer: Managing Lattices and Accuracy
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Graduate Band structure of cobalt adsorbed graphene
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Graduate Determination of atomic bases in unit cell using Wien2k
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Undergrad Can Brownian Motion Suspend Larger Particles in a Denser Fluid?
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Graduate Understanding Cell Volume: Why It's Independent of Choice
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High School What causes texture on surfaces?
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Graduate Displacement energy of atom in a liquid (for ion implantation)
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Graduate Is Light Traveling Faster Than c in Materials with Index of Refraction Below 1?
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High School How does light behave when passing through glass or water?
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High School Helium Atomic Structure: Ionization Speed Compared to Air
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Graduate How does x-ray diffraction from different Bragg planes add up?
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Graduate P-N junction voltage under polarization
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Graduate Photon emission during x-Ray ionization process
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Graduate Integration of 6-12 Lennard Jones Potential to obtain the 3-9 one.
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Graduate Does a photon that has been absorbed still exist?
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Graduate Temperature dependence of the light yield in scintillators
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Undergrad Understanding the Rule of Delta E = A/r^12 - B/r^6 in Physics Crystallography
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Graduate What Determines the Fermi Level of Semiconductors?
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Undergrad Interaction of matter and radiation
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Graduate Must photons be absorbed or emitted one by one?
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Graduate XPS for different oxidation states
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Graduate Why Electrons Don't Radiate in h/2π Orbits
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Graduate Hydrogen partition function and degeneracy
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Undergrad Curie temperature, reversible process
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Graduate Total energy of N+1 electron system compared to N
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Graduate Random nature of multiple scattering
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Graduate Density of States Plots - Uses & Importance
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Graduate State of the art on H line spectra?
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Undergrad What Is the Most Current Model in Solid State Physics?
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Undergrad How Can Empty Space Comprise Most of Our Mass?
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Graduate Help me identify this mystery structure in my SEM image?
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Graduate Determine density of states from an XPS spectrum
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Graduate High symmetry directions in a two-dimensional oblique crystal
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Undergrad Are subatomic particles spherical?
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Graduate Complete and incomplete mode locking. Charge density waves.
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Undergrad Internal Energy Change: Confusion Cleared Up
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Graduate Transfer Matrix Method for 2D Ising & Other Models
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Undergrad Verifying my understanding of solar cells and semiconductors
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Undergrad A photon absorption/emission by an atom
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High School Titanium Ion Charge: +2 - Explanation?
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Graduate 2D Density of States Energy Independent
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Graduate Want to know more about Conductors
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Can anyone name this children's history of atomic science?
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Graduate Understanding Schottky Barrier Height: Why the Energy Bands?
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Graduate Silicon in an External E-Field
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Graduate Silicon carbide polytypes (large unit cells)
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Undergrad Kinetic energy compared to energy making up mass
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Graduate Cooper Pairs: Definition and Formation Process
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Graduate Energy of atomic orbitals in multielectron system
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Graduate Laser Plasma Emission: Mechanisms Explained
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Graduate What is the energy gap of Titanium Nitride (TiN) and is it indirect or direct?
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Graduate Doping Defects in Semiconductors?
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Graduate How BEC being described by the single-particle density matrix?
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Graduate How Does a High Magnetic Field Break Superconductivity?
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Undergrad Reverse Bias in P-N Junctions: Why Don't Electrons Diffuse Back?
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Graduate Conductor band overlap definition question
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Graduate Aharonov Bohm Effect - Impurity Scattering and Phase Coherence
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Graduate How does the reflectivity of silicon change with current?
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Undergrad A question on p-n junction depletion layer
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Undergrad Measuring the focal length of a deformable lens
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High School Ocean water compression question
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Graduate Physical explanation for power broadening
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Graduate Density equations (light considered as reservioir)
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Graduate Fermi Surface and Orthogonality Catastrophe
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Graduate Spintronic light emitting diode
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Graduate Laser light vs. synchrotron light in ARPES measurements
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Undergrad Why Does Rb87 Decay to Sr87, Not Rb85?
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Undergrad Make Solid State Electrostatic Oscillator?
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Graduate Proof for quantisation of electrons energy around an atom?
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Graduate Hydrogen excitation, ionisation and photon absorption
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Graduate Who is this "Kallen" and what does he represent, anyway?
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Graduate Absorption cross sections of hydrogen ions
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Undergrad Why Do Electrons Determine Atom Volume While Nucleons Account for Mass?
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Graduate Why do electrons and protons have the same amount of charge?
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