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.
I Fermi sphere and density of states
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A Relation between IR radiation and warming in metals
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A Can we make a circular polarization laser directly?
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I Does the ionic background of a crystal affect the index?
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I Double heterostructure junction in forward and zero bias
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I Are there energy bands for alloys?
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I Reflectance of metals at low frequencies
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I Non-zero current from a completely filled band
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Law of Mass Action: Intrinsic & Extrinsic Semiconductors
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B Does ionization change velocity of ion?
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I Why superconductors have zero resistance
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I Difference between solid-state, semiconductor and gas lasers
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A Incandescence and electronic excitation
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I Will ethanol destroy double layered graphene?
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B Atomic Structure: Why Don't Protons Repel Each Other?
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I Transmittance and Absorbtion of light
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A About Feshbach Molecules in ultracold molecules
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A Emission spectra of a hot body vs. atomic emission spectra
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I How is a top gate used to change electron density?
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I About standing waves and reasonance
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I Highest Order Diffraction Ring
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B Finite difference problem
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A Masters Thesis Topics and Literature
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I Understanding the Derivation of Effective Mass Approximation in Semiconductors
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A Why Energy of 4s is higher than 3d?
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I Hyperpolarizability and second order susceptibility
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B Why is the noble gas configuration inert?
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A M-edges in TR-XAFS in Lanthanides
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I Boltzmann distribution for spin-1/2 dipole: high T limit
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A How to find vibrational frequency for specific bond? (DFT)
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A Numerical solution to SE - variational method, many electrons
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Variable grid mesh in Numerov's method (Fortran)
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I Why does the magnetisation orient itself in the -y direction
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B Can heating/cooling a material effect absorption, and transmission
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I Why does high surface energy of the solid have more wetting?
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A What is the role of the sp-band in bandstructures and density-of-states?
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A How can I tell Gaussian to read coordinates as Cartesian?
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A Hyperfine structure transition of Cs-133: calculation?
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A Acoustic and optical branches in phonons dispersion curves
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I Difference between Zero-Field Cooling and Field Cooling
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I Emission spectroscopy of an acetylene flame
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I What is the theoretical basis for Kramer's Law?
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I Distinguishing Blackbody and Atomic Spectra of the Sun
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I Bloch's theorem infinite system?
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A Magnetocaloric effect and electron energy levels
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A Computing the resistivity due to electron collision with 1BZ
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I Matter cutting by destabilising of atoms bonding
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I Volume of velocity-space in Maxwell-Boltzmann distribution
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I Boltzmann distribution: isothermal atmosphere error?
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I Bandgap Energy and refractive index
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I Do all solids have a crystalline organized structure?
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I Diffusion of carriers in a double heterostructure
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I What is the Bremsstrahlung Spectrum function?
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I Spectra Units: cm^(-1)? | KQ6UP
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I Built-in potential in pn junction
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I Pump Probe Spectroscopy: Introduction to a Powerful Technique
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I Evaluating Scattering Integral
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A Does a type I superconductor have to be single crystal?
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I Resonant Frequency of an Atom in an Atomic Clock
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I Pn junction to reach thermal equilibrium
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The Fascinating World of Bravais Lattices
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I Bond length of a hydrogen bond
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I What factors influence the crystal structure of metals?
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A Can't crystal of simple lattice be antiferromagnetic?
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I Carrier Concentration in a Semiconductor
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I Energy levels in atoms & speed of interaction
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I What octahedral site is preferred by carbon?
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A A question about how to start ab initio simulations
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A Difference between an optical and an acoustic phonon
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A Deriving DOS: Solve the Mystery of the 2x Factor!
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I Photoluminescence Excitation (PLE) vs PL spectroscopy
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I What is the volime of a k-state?
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I Calculation of the absorption coefficient for GaAs
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I Localized and delocalized states, meaning? in Organics
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Josephson Junction: Perpetual Motion System?
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A Break points in band structure
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I Quasi Fermi level and intrinsic Fermi energy
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I What does total number of atomic sites mean ?
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I Velocity saturation and mobility in metals and semiconductor
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A Dielectric loss of SiO2 layers.
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I Finding the vibrational partition function of a diatomic molecule
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I A diamagnet inside a magnetized hollow cylinder
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I Diamagnetism vs. paramagnetism in solid state
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A Understanding the Meaning of Splitting in Two-Level Systems
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I Kinetic energy with effective mass
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A HF pulsed UV light effect on metal alloy
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B What is the self absorption parameter
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I Basic band theory question, free electron model
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I Origin of 12th power dependency of Pauli repulsion?
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I Why is the work function measured from the Fermi level?
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A About X-ray Photoelectron Spectroscopy
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I Position of Fermi Energy for Semi-Conductors
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A Plank Radiation Spectrum Liquids Wavelength VS Temp
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I Query about statistical ensemble and Liouville's Theorem
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I Effective mass position dependent
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I Drawing a reciprocal lattice, also basis
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A How Resonance in general, differ In Chemistry and Physics
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Superconductor structure and contents
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B Could mixing light wavelengths effect absorption, and emissi
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A Nonhydrostatic equation of state for a solid
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