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 2nd Order Perturbation Coefficients.
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Graduate Isotropic crystal and energy band
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Graduate What Governs the Dynamics of Phase Transitions in Materials?
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Undergrad Why transition metals can have unpaired electrons in their compounds?
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Undergrad Doping with impurities does what to Silicon?
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Graduate U(1) Gauge Symmetry: What Informs Its Choice?
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Graduate Thermal Conductivity: Nonmetal Impact on Change
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Buy Neodymium Magnets: Skin Pinching, Shattering Power Explained
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Graduate Coupling only to the center of mass degrees of freedom?
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Undergrad Why is the Energy Level Higher on the P Side of a PN Junction Diode?
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Graduate Electron collision and periodic crystal
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Graduate Drude Model: Electrons & Collisions
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Graduate Is the Fermi Surface Relevant for Metals with Band Structure?
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Graduate Explaining the Relation Between \gamma N_+ and 2N_{++}+N_{+-}
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Graduate Why Doesn't Volume of Crystal Depend on Temperature?
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Graduate Why Is Each Quantum Oscillator's Energy Approximated as kT at Low Temperatures?
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Graduate Why does anion vacancy act as a 'hole-killer'?
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Graduate Thermal annealing to induce nanoparticle formation
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Graduate Are Phonon Collisions Responsible for Quantized Lattice Vibrations?
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Graduate Geometric phase of a parallel transport over the surface of a sphere
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Graduate Phonon Interactions & Brillioun Zone Mapping
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Undergrad Valence electrons in insulators
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Undergrad How does stimulated emmision work?
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Graduate Anisotropy and demagnetizing field
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Graduate Momentum conservation in a direct transition
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Graduate Is spin conserved in tunneling?
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Graduate How Does the Cell Constant d Relate to Diffraction Angles in Bragg's Law?
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Graduate Fourier component crystal potential - physical significance
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Graduate Density of states free electron gas
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Graduate How does Einstein's equation account for changes in mass during nuclear bonding?
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Graduate Mechanical property of quasicrystals
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Graduate What is the Connection Between Bragg Reflection and Energy Band Gaps in Solids?
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Graduate Description of optical tweezers: Ponderomotive force?
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Graduate How Do Nano Particles Enhance Material Properties?
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Graduate Does amorphous solids support phonons or nomal modes of vibration.?
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Graduate TE, TM and TEM Modes in Lasers
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Graduate Why canal rays need a perforated cathode?
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Undergrad Programming the Nearly Free Electron Model Band Diagram for BCC and FC
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Graduate Is the MRI Signal a Combination of Longitudinal and Transverse Magnetic Waves?
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Undergrad What is the relationship between wavelength and excited shells in atoms?
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Graduate Signals, spectra, resonance, etc.
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Graduate Relaxation times/frequencies of Polarization Mechanisms
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Graduate Question on Hellman-Feynman Theorem
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Undergrad Why do charges accumulate at grain boundaries?
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Undergrad Understanding Eutectic Compositions: The Science Behind Melting Points
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Graduate Interface (Maxwell-Wagner) Polarization and Dielectric Loss
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Graduate Missing Reflections in FCC/BCC Crystals: Bragg Model Inadequate?
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Undergrad Why does the atomic radii get smaller from the left to right?
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Graduate Channeltron contamination/cleaning
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High School What is the percentage of empty space in an atom?
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Graduate Umklapp Scattering & Conservation of Energy
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Undergrad Universal Gas constant and arrhenius equation
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Graduate Electron Doping and Permittivity
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Graduate Fermi Distribution: Explaining QM POV w/ Wave Functions
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Graduate Why Can't Electrons Move Inside the Valence Band?
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Graduate Brillouin Zones, Phonons, Energy Propagation through a Crystal
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Undergrad Main reason why semiconductor is used and not a pure metal for detec
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Graduate Understanding Density of States in 3d Crystals: A Comprehensive Explanation
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Graduate Depleted region in Semiconductor and leakage current
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Graduate Considering spin in the transport of nanoscale devices
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Graduate Understanding energy bands in solids
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Graduate Why does bringing N 1-orbital atoms together yield N levels?
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High School Can We See Atoms and Molecules Without High Powered Microscopes?
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Graduate Which solvent is best for dissolving graphene flakes?
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Graduate High symmetry points and lines in Brillioun Zone
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Graduate How do the effects of semiconductor doping affect the Hall effect?
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Graduate Magnetic Structure: Distinguishing Neutron Diffraction Data
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Undergrad Resistance of graphene dispersion
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Undergrad Comparison of DFB edge emitting laser vs. VCSEL
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Graduate What Influences the Depletion Region Thickness in a P-N Junction Diode?
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Graduate Difference Between Spinons and Psinons
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Graduate What's the physical interpretation of ρ for dipole forbidden channel?
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Graduate Is the P-N junction the only means to acheive a depletion region?
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Graduate Accessing electrons from the Fermi Sea?
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Graduate Radial distribution function question
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Graduate Optical and acoustic modes
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Undergrad Phonons: What Are They and How Do They Work?
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Graduate Why do beams interact in scattering?
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Graduate Inside radius of atomic electron cloud vs Z
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Undergrad What is the Energy of One Hydrogen Atom?
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Graduate Lattice Simulations on a Sphere in Condensed Matter
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Graduate Does Spin have rotational kinetic energy?
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Undergrad Carbon Atom Arrangement in Organic Compounds: Exploring Covalent Bond Angles
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Graduate Ferromagnetism for 3d, 4f metals
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Graduate Why is this correct - particle lifetime probability distribution
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High School Covalent bond of 2 or more atoms?
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Graduate What Are Acoustical and Optical Branches in Crystal Waves?
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Graduate Ordered lattice necessary for band structure?
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Graduate Paramagnetism of Free Ions. Sign problem.
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Graduate Can Geometrical Frustration be Relieved in Heisenberg Spins?
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Undergrad Why does platinum adsorb hydrogen
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Graduate Coherent state between a fermion and a photon
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Graduate Classical Phonons: Solving Differential/Difference Equation
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Graduate Unraveling the Pairing Mechanism in Cuprate Superconductors
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Undergrad What is the difference between bulk, cluster, and molecule in material science?
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Graduate Radiation absorption and temperature changes in matter
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Undergrad Why Must the Wavelength Be Smaller Than the Interplanar Spacing in Bragg's Law?
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Graduate How Does Pressure Affect Phase Transitions and Volume in Solids Like Iron?
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Graduate Energy Bands and Molecular Orbitals
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Graduate Vector model of atom. Hopefully easy question.
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