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Atomic and Condensed Matter Forum

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.

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An easy way to generate the unit cell

Jan 18, 2011 · Replies 9 · Jan 21, 2011

Replies: 9

Views: 7K

Determining Uncertainty in XRD

Jan 18, 2011 · Replies 1 · Jan 20, 2011

Replies: 1

Views: 3K

Reflectivity metals at high frequency

Jan 19, 2011 · Replies 4 · Jan 20, 2011

Replies: 4

Views: 5K

Doubt regarding silicon waffers and silicon diodes

Jan 9, 2011 · Replies 12 · Jan 19, 2011

Replies: 12

Views: 7K

Limits of classical views of the atomic structure

Jan 18, 2011 · Replies 7 · Jan 18, 2011

Replies: 7

Views: 3K

Start Learning Density Functional Theory for Beginners

Oct 17, 2010 · Replies 8 · Jan 18, 2011

Replies: 8

Views: 15K

Raman Scattering: How is it Possible for an IR Inactive Molecule?

Jan 4, 2011 · Replies 2 · Jan 17, 2011

Replies: 2

Views: 3K

PN-junction Breakdown: Sudden Increase in Reverse Current

Jan 16, 2011 · Replies 2 · Jan 17, 2011

Replies: 2

Views: 9K

Why is CO2 liquid less dense than CO2 solid

Jan 15, 2011 · Replies 3 · Jan 17, 2011

Replies: 3

Views: 12K

Why do doped semiconductors have majority carriers?

Jan 15, 2011 · Replies 4 · Jan 15, 2011

Replies: 4

Views: 15K

Spin-orbit Hamiltonian in tight-binding

Jan 24, 2010 · Replies 2 · Jan 15, 2011

Replies: 2

Views: 8K

In semiconductors, can phonons create excitons?

Jan 14, 2011 · Replies 1 · Jan 15, 2011

Replies: 1

Views: 3K

Surface definition in crystals question

Jan 14, 2011 · Replies 2 · Jan 15, 2011

Replies: 2

Views: 2K

Net Polarization: Definition & Meaning

Jan 6, 2011 · Replies 8 · Jan 14, 2011

Replies: 8

Views: 8K

I'm sure deposition is a change from a gas to a solid.

Jan 14, 2011 · Replies 1 · Jan 14, 2011

Replies: 1

Views: 3K

Particle-hole Symmetry: Definition & Resources

Jan 12, 2011 · Replies 2 · Jan 14, 2011

Replies: 2

Views: 11K

Why Do Photons Have Zero Chemical Potential?

May 4, 2010 · Replies 8 · Jan 14, 2011

Replies: 8

Views: 9K

How to determine Chemical potential

Jan 4, 2011 · Replies 6 · Jan 13, 2011

Replies: 6

Views: 4K

X-ray absorption by semiconductors

Jan 9, 2011 · Replies 10 · Jan 13, 2011

Replies: 10

Views: 4K

Can Liquid Nitrogen Really Overclock a Processor to 6 GHz?

Jan 12, 2011 · Replies 3 · Jan 13, 2011

Replies: 3

Views: 4K

Summations Homework: Is Rewrite Correct?

Jan 8, 2011 · Replies 7 · Jan 12, 2011

Replies: 7

Views: 3K

Graphene w/ Boron & Nitrogen: Open Band Gap?

Jan 9, 2011 · Replies 2 · Jan 10, 2011

Replies: 2

Views: 3K

Bogoliubov Theory of weakly interacting Bose gas

Dec 30, 2010 · Replies 2 · Jan 10, 2011

Replies: 2

Views: 3K

Neel Temperature: Is Magnetisation Equal to Zero?

Jan 9, 2011 · Replies 5 · Jan 10, 2011

Replies: 5

Views: 4K

Doubt regarding silicon waffers and silicon diodes

Jan 9, 2011 · Replies 1 · Jan 9, 2011

Replies: 1

Views: 3K

Characteristic X-rays: Direction of Emission?

Nov 22, 2010 · Replies 2 · Jan 9, 2011

Replies: 2

Views: 3K

Graphene ribbon and Landau Energy Bands of Graphite

Jan 7, 2011 · Replies 11 · Jan 7, 2011

Replies: 11

Views: 4K

Decay Method and Time of Nucleus

Jan 6, 2011 · Replies 5 · Jan 7, 2011

Replies: 5

Views: 3K

About the order parameter in antiferromagnetism

Jan 6, 2011 · Replies 3 · Jan 6, 2011

Replies: 3

Views: 9K

How Does ARPES Measure the Lifetime of Injected Photo Holes?

Jan 5, 2011 · Replies 1 · Jan 6, 2011

Replies: 1

Views: 3K

What do we mean by broken symmetries when referring to superfluid he3 phases?

Jan 5, 2011 · Replies 1 · Jan 5, 2011

Replies: 1

Views: 2K

Hafnia / Zirconia polymorphs as a function of T

Jan 4, 2011 · Replies 1 · Jan 4, 2011

Replies: 1

Views: 2K

Are there free electrons in the valence band?

Jan 3, 2011 · Replies 4 · Jan 4, 2011

Replies: 4

Views: 16K

Physical state of water at 80 degrees C on the upswing or downswing of boiling.

Jan 2, 2011 · Replies 3 · Jan 3, 2011

Replies: 3

Views: 13K

Does ionisation energy depend on electronegativity?

Dec 30, 2010 · Replies 1 · Jan 2, 2011

Replies: 1

Views: 3K

How to evaluate the strain-induced change in reciprocal space?

Oct 7, 2010 · Replies 7 · Jan 1, 2011

Replies: 7

Views: 3K

Tight Binding calculation of band structure

Oct 30, 2010 · Replies 6 · Dec 30, 2010

Replies: 6

Views: 8K

H problem in statistical mechanics

Dec 21, 2010 · Replies 33 · Dec 27, 2010

2

Replies: 33

Views: 8K

What determines a system to experience crossover or phase transition?

Dec 26, 2010 · Replies 4 · Dec 27, 2010

Replies: 4

Views: 10K

How long is an electron transition ?

Dec 25, 2010 · Replies 1 · Dec 26, 2010

Replies: 1

Views: 3K

Laser Physics: Second Harmonic Generation

Dec 20, 2010 · Replies 8 · Dec 25, 2010

Replies: 8

Views: 4K

Solid state physics and chemistry

Dec 23, 2010 · Replies 3 · Dec 23, 2010

Replies: 3

Views: 4K

Magnetic property of Molecules

Dec 13, 2010 · Replies 10 · Dec 23, 2010

Replies: 10

Views: 3K

Finding STO3G Parameters for H,He,C,N,O

Dec 21, 2010 · Replies 3 · Dec 22, 2010

Replies: 3

Views: 3K

Raman Spectroscopy Exposure Time

Dec 8, 2010 · Replies 1 · Dec 21, 2010

Replies: 1

Views: 5K

Relativistic effects at small temperatures

Dec 19, 2010 · Replies 2 · Dec 20, 2010

Replies: 2

Views: 3K

Laplace transform of the grand canonical partition function

Dec 19, 2010 · Replies 1 · Dec 20, 2010

Replies: 1

Views: 4K

Hartree-Fock Questions Answers

Dec 18, 2010 · Replies 1 · Dec 20, 2010

Replies: 1

Views: 3K

What affects electron mobility in semiconductors and metals?

Dec 17, 2010 · Replies 3 · Dec 20, 2010

Replies: 3

Views: 4K

Atomic radius by dimensional analysis

Dec 19, 2010 · Replies 1 · Dec 19, 2010

Replies: 1

Views: 4K

Is this interpretation logical? (Perturbation theory)

Dec 16, 2010 · Replies 6 · Dec 18, 2010

Replies: 6

Views: 3K

Conduction and valence band for metals

Dec 17, 2010 · Replies 1 · Dec 18, 2010

Replies: 1

Views: 6K

How to show all Brillouin zones have same volume

Dec 16, 2010 · Replies 3 · Dec 17, 2010

Replies: 3

Views: 9K

Jellium Model: Finite Confinement & Coulomb Interactions

Sep 22, 2010 · Replies 4 · Dec 17, 2010

Replies: 4

Views: 5K

Bogoliubov transformation 3-mode

Dec 15, 2010 · Replies 5 · Dec 17, 2010

Replies: 5

Views: 5K

How to calculate the lattice sums of BCC?

Dec 14, 2010 · Replies 1 · Dec 15, 2010

Replies: 1

Views: 10K

Current CMP Research: What's Popular Now?

Dec 14, 2010 · Replies 2 · Dec 15, 2010

Replies: 2

Views: 3K

Electron and phonon contribution dependence on temperature for heat capacity

Nov 12, 2010 · Replies 2 · Dec 14, 2010

Replies: 2

Views: 7K

Diophantine equation in the integer quantum hall effect

Dec 12, 2010 · Replies 2 · Dec 14, 2010

Replies: 2

Views: 4K

Electronic gradient of Schroedinger Equation

Dec 13, 2010 · Replies 3 · Dec 14, 2010

Replies: 3

Views: 2K

Do semiconductors have to have a full valence band?

Dec 12, 2010 · Replies 4 · Dec 13, 2010

Replies: 4

Views: 3K

Effective mass of Si in semiconductor physics

Dec 11, 2010 · Replies 1 · Dec 13, 2010

Replies: 1

Views: 3K

X-ray Cystallography -Calculating Density

Dec 11, 2010 · Replies 6 · Dec 13, 2010

Replies: 6

Views: 7K

Band Structure of Charged Insulator

Dec 6, 2010 · Replies 7 · Dec 13, 2010

Replies: 7

Views: 3K

Hopping Probabilities in Tight Binding Model

Dec 9, 2010 · Replies 3 · Dec 10, 2010

Replies: 3

Views: 6K

Time reversal and herring test

Dec 8, 2010 · Replies 3 · Dec 10, 2010

Replies: 3

Views: 3K

Superconductivity in fullerenes

Dec 3, 2010 · Replies 2 · Dec 9, 2010

Replies: 2

Views: 3K

Calculating Integral of Cubic Lattice Sum

Dec 8, 2010 · Replies 3 · Dec 9, 2010

Replies: 3

Views: 3K

How relevant are solvable models such as 2D Ising to real systems?

Dec 7, 2010 · Replies 1 · Dec 8, 2010

Replies: 1

Views: 2K

Calculating Demagnetization Factor: N for Simple Geometries

Oct 11, 2005 · Replies 1 · Dec 8, 2010

Replies: 1

Views: 10K

Frequency Doubling: Typical Conversion, Input Power & CW Laser?

Dec 7, 2010 · Replies 3 · Dec 8, 2010

Replies: 3

Views: 3K

NMR Spin-evolution simulations

Jul 6, 2009 · Replies 3 · Dec 8, 2010

Replies: 3

Views: 4K

What Are KPOINT Grids and Their Importance in Surface Calculations?

Dec 3, 2010 · Replies 3 · Dec 7, 2010

Replies: 3

Views: 3K

Using CASTEP for Geometric Optimizations

Apr 20, 2007 · Replies 2 · Dec 7, 2010

Replies: 2

Views: 4K

Effect of dissociation energy on plasma ions behavior

Dec 3, 2010 · Replies 3 · Dec 7, 2010

Replies: 3

Views: 4K

Two dimensional green function

Dec 5, 2010 · Replies 3 · Dec 6, 2010

Replies: 3

Views: 5K

Determining Bravais Lattice from Primitive Translation Vectors

Dec 6, 2010 · Replies 2 · Dec 6, 2010

Replies: 2

Views: 3K

Calculating Evaporation: Pressure, Vapor Pressure & Temperature

Sep 27, 2010 · Replies 1 · Dec 5, 2010

Replies: 1

Views: 6K

Does superfluidity imply BEC? (+ other BEC questions)

Dec 1, 2010 · Replies 4 · Dec 5, 2010

Replies: 4

Views: 3K

Estimating Energy to Remove Atom from Lattice Vacancies in Silver

Dec 3, 2010 · Replies 1 · Dec 5, 2010

Replies: 1

Views: 3K

Can You Decode a Band Structure Plot and Identify Corresponding Atomic Orbitals?

Dec 5, 2010 · Replies 1 · Dec 5, 2010

Replies: 1

Views: 6K

Understanding the Spin Deviation Operator in Holstein-Primakoff Process

Dec 2, 2010 · Replies 2 · Dec 3, 2010

Replies: 2

Views: 3K

New open-shell molecular electronic structure program: What to do with it?

Dec 1, 2010 · Replies 2 · Dec 2, 2010

Replies: 2

Views: 3K

Benzene forms the electron shell configuration of two rings of

Nov 29, 2010 · Replies 4 · Dec 2, 2010

Replies: 4

Views: 4K

Antiferromagnetism Types: G & A Types Explained

Nov 30, 2010 · Replies 6 · Dec 1, 2010

Replies: 6

Views: 18K

Explaining the Unexpected Spikes in a Quantum Well Absorption Spectrum

Nov 30, 2010 · Replies 1 · Dec 1, 2010

Replies: 1

Views: 4K

Superconductivity and Fermi levels

Nov 27, 2010 · Replies 3 · Dec 1, 2010

Replies: 3

Views: 9K

Using Vicks Theorem to Calculate Average of Bose Operators

Nov 24, 2010 · Replies 16 · Nov 30, 2010

Replies: 16

Views: 4K

Does melting deteriorate the crystalline order?

Nov 29, 2010 · Replies 3 · Nov 30, 2010

Replies: 3

Views: 2K

Creating Photonic BEC: What Possibilities & Applications Arise?

Nov 26, 2010 · Replies 13 · Nov 30, 2010

Replies: 13

Views: 6K

Resistance calculation of odd-shaped plate

Nov 27, 2010 · Replies 9 · Nov 29, 2010

Replies: 9

Views: 10K

Metallic Bond - The Role of 'Free' Electrons in a Metallic Bond

Nov 29, 2010 · Replies 3 · Nov 29, 2010

Replies: 3

Views: 7K

Can a piece of A4 paper reach the moon?

Nov 27, 2010 · Replies 4 · Nov 29, 2010

Replies: 4

Views: 6K

Is Nonlinear Media Behavior Dependent on Incoming Field?

Nov 28, 2010 · Replies 2 · Nov 28, 2010

Replies: 2

Views: 6K

What distinguishes an illuminant from a light source?

Nov 27, 2010 · Replies 1 · Nov 27, 2010

Replies: 1

Views: 3K

Self consistent spin wave theory

Nov 6, 2010 · Replies 9 · Nov 27, 2010

Replies: 9

Views: 3K

The Potential of Quasi-Liquid Palladium: Applications and Uses

Nov 22, 2010 · Replies 1 · Nov 26, 2010

Replies: 1

Views: 3K

Semiconductor Electron Affinity

Nov 24, 2010 · Replies 4 · Nov 26, 2010

Replies: 4

Views: 13K

Is the Refractive Index Constant Despite Rising Extinction Coefficient?

Nov 26, 2010 · Replies 1 · Nov 26, 2010

Replies: 1

Views: 6K

Calculated Density of states (DOS)

Nov 25, 2010 · Replies 1 · Nov 25, 2010

Replies: 1

Views: 3K

Atomic and Condensed Matter

Welcome to the Atomic Physics forum!

Atomic and condensed matter physics are two closely related branches of physics. Atomic physics focuses on the study of atoms, investigating their structure, behavior, and interactions with electromagnetic radiation.

It delves into phenomena such as atomic spectra, quantum states, and atomic transitions. Condensed matter physics, on the other hand, extends these principles to study the properties and behaviors of solid and liquid matter in bulk, dealing with materials like metals, semiconductors, and liquids.

This field explores concepts such as phase transitions, crystal structures, and electronic properties of condensed phases. Both atomic and condensed matter physics contribute significantly to our understanding of the fundamental properties of matter and find applications in various technological advancements and material science.

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