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 Bohr's model applied to Wannier exciton in indirect gap semiconductors
  • Tipi
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Graduate Problem in convergence in Quantum espresso
  • Arun Prasath
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Graduate Density of states arbitrary units
  • miljohns60
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Graduate Difference between ionization energy and work function
  • fluidistic
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Graduate Energy spacing in the description of energy bands.
  • dvurger
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Graduate Exploring the Qualitative Reason Behind VDW's \rho^2 Dependence
  • cyborg6060
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Graduate What Physical Evidence Supports the Role of Cooper Pairs in Superconductivity?
  • fluidistic
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Graduate Macro vs Nanoscale Pyroelectric Polymers
  • miniconfusion
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Undergrad Why Does Band Gap Energy Increase Higher Up the Periodic Table?
  • amm508
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Undergrad Demolecularization using antimatter
  • barthman221
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High School Calculating Elementary Charge Using Millikan's Experiment Results
  • decamij
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Undergrad Molecular emission spectra database
  • rammer
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Graduate Some Fundamental Interactions Of Matter Found To Be Fundamentally Different
  • SF
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Undergrad Which solid configuration has the highest density of states for electrons?
  • cube137
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Graduate What is the functional representation of D(E) for a given energy interval?
  • huda
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Graduate Normal Mode Analysis+IR/Raman
  • Rajini
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Graduate Random Phase Approximation (Why they call it so?)
  • asheg
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Graduate Electron density Saha Ionization Equation
  • shahbaznihal
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Undergrad Carbon-Carbon Bond Energies: Primary vs. Tertiary Carbon
  • blueblueblue
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Undergrad Terminology - the upper state
  • Paperfish
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Graduate Let's Discuss the Ways of Making Graphene
  • ErolDynamics
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Graduate Carbon Nanotubes (CNT) Safeguards Info Needed
  • jp2009
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Graduate The Potential of Molecular Assembler Bots: Fact or Fiction?
  • donkeyhide
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Undergrad Why do some elements in column 14 have different shapes than carbon?
  • bjon-07
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Graduate Why is j2 = 1/2 and not -1/2 in the coupled angular momenta equation?
  • Dreak
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Graduate Conductivity of a copper wire at 4K
  • maximus123
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Graduate Graphene Membraned Blocks Helium and Other Gasses, Allows Water Through
  • Drakkith
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Graduate Scientists discover exotic quantum state of matter
  • SF
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Graduate Feshbach resonance for Li: repulsive and attractive?
  • hungry_r2d2
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Graduate Atomic clock - optical pumping
  • Moth
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Undergrad The atom's stable configuration
  • scientist91
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Graduate Lennard-Jones potential for 3 atoms
  • barnflakes
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Graduate Is zigzag graphene nanoribbon metallic or semiconducting?
  • simsCity
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Graduate Simple models of nanoscale carbon structures
  • Signifier
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Graduate Field effect transistor made of graphene: how does it work?
  • Naamean
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Graduate Graphene visibility vs. SiO2 thickness
  • Vaidas
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Graduate When should the nuclear spin be included in atomic spectroscopic notation?
  • passingthru
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Graduate Teleportation of single atoms
  • Chen
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Undergrad What explains the sharpness of XRD peaks?
  • Livio Arshavin Leiva
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Graduate Non interacting Fermions satisfy the Pauli exclusion principle
  • fluidistic
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Graduate Studying Green's function in many body physics
  • Jeff Chen
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Undergrad How can I compute edge states in the Haldane model with varying dimensions?
  • Ammo1337
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Graduate How do acceptor energy levels form in p-doped semiconductors?
  • SchroedingersLion
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Undergrad Energy needed for an Ionic Bond
  • Avardia
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Graduate Selection rules beyond the central field approximation
  • znbhckcs
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Undergrad Taylor Series for Potential in Crystals
  • Avardia
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Graduate Graphene Spin Relaxation: Getting Started
  • Jeff Chen
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High School Factors contributing to the atomic mass of an atom
  • Avalon_18
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Graduate Energy transition in LS-coupling
  • joris_pixie
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Graduate Stable orbitals/absorption spectrum
  • granpa
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Undergrad Linear combinations of atomic orbitals
  • Avardia
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Graduate Can a degenerate gas of electrons be a superconductor?
  • ChinoSupay
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Graduate Raman spectroscopy and the phonon confined in the Brillouin zone
  • phzrosmary
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High School Why is it possible to push your finger through butter?
  • arupel
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Graduate Create Hamiltonians in condensed matter with group theory
  • Amentia
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Graduate Powder XRD sample prep question
  • xrdquestionperson
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Graduate Quantum Espresso Tutorial: h-Boron Phosphide Variable-Cell Relaxation
  • Alessandroocj
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Undergrad How do irrational numbers give incommensurate potential periods?
  • Luqman Saleem
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Graduate Selection rules using Group Theory: many body
  • SteveP
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Graduate Imaginary part of the dielectric function
  • John Greger
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Graduate Magnetic response of a degenerate Fermi gas
  • ChinoSupay
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Graduate Doubling I, what happens to v_d and n?
  • fluidistic
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Graduate Fermi gas in a magnetic Field?
  • ChinoSupay
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Graduate Inquiry regarding Ashcroft and Mermin's page 365
  • MathematicalPhysicist
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Undergrad Quantized vortices in superfluid
  • korea_mania
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Undergrad Why is Isopropanol used after Acetone in cleaning procedures?
  • pangru
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Undergrad What does the wavenumber in a group velocity represent?
  • confused_man
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Graduate A passage on pages 346-347 in AShcroft and Mermin
  • MathematicalPhysicist
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Graduate Removing frozen field from SQUID magnetometer MvsH data
  • GPhys05032019
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Undergrad Nuclear spin coupling in molecular (protium) hydrogen
  • hkyriazi
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Undergrad What is the Gruneisen Parameter in Ashcroft & Mermin Chapter 25?
  • hgandh
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Undergrad What are spinons and orbitons in the context of electron behavior in materials?
  • Philipsmett
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Undergrad Understanding Band Structure Diagrams
  • Philip Land
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Undergrad How do electrons in materials interact?
  • Philipsmett
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Undergrad Why are atomic clocks so accurate?
  • iVenky
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Undergrad Impact of superconductivity on mechanical properties?
  • fluidistic
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High School We Need a Wall - Electrons are Crossing Our Borders
  • jedishrfu
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Undergrad What Are the Differences Between Boltzmann and Gibbs Entropies?
  • WWCY
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High School Are Atoms Glued? Learn What Happens
  • Moves
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Graduate Can multiple layers of thin films increase infrared light absorption?
  • hagopbul
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Graduate What is the Relationship Between Permitivity and Wave Vector in Graphene?
  • Sadek
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Undergrad Stress problem between superconductor and wire
  • li dan
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Undergrad Any stable amorphous substances?
  • snorkack
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Undergrad Is NaCl Ferroelectric Due to Its Lattice Polarization?
  • minifizicus
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Undergrad Photodiode bandwidth: why does power decrease with frequency
  • Jalo
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Undergrad Time period of precession of Sx about B
  • Apashanka
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Undergrad Atomic Force Microscopy in hard and soft matter physics
  • JD_PM
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Graduate The probability function of electrons occupying the donor state
  • Dale12
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Undergrad Fuchs-Sondheimer Resistivity model for Nanowires
  • Avocado
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Undergrad Some questions about electrons and the Fermi energy
  • Jeff Chen
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Undergrad How can ΔJ = 0 for an electric dipole transition?
  • lawlieto
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Undergrad Charge carrier density: Hall experiment vs Fermi-Dirac statistics
  • fluidistic
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High School Graphene Stacked at 1.1 degrees Superconducts
  • .Scott
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Graduate Quantum Dot Solids: Electron Minibands & Potential
  • Christopher Rourk
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High School Why do metastable states in atoms exist?
  • Zahid Iftikhar
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High School Bose-Einstein Condensate Photons
  • sqljunkey
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Graduate What is the bulk plasmon peak?
  • macabre
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Graduate Is the Earth's core a potential high-temperature superconductor?
  • hagopbul
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Graduate What is the best free software for analyzing powder XRD data?
  • Amiga
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Undergrad Is There a Curve For a Material's Surface Area vs. UTS
  • gibberingmouther
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