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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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Can the Selection Rule Δl = ±1 Be Applied to Helium Transitions?

Feb 15, 2012 · Replies 1 · Feb 18, 2012

Replies: 1

Views: 6K

Understanding Einstein's Solid: Calculating Multiplicity of Energy States

Feb 17, 2012 · Replies 2 · Feb 18, 2012

Replies: 2

Views: 4K

Colloidal Synthesis of Nanoparticles: Get Answers Here!

Feb 16, 2012 · Replies 2 · Feb 18, 2012

Replies: 2

Views: 2K

Developing Direct Simulation Monte Carlo and I have problem

Feb 15, 2012 · Replies 4 · Feb 17, 2012

Replies: 4

Views: 4K

Why Can't the Voltage at a PN Junction be Measured from the Outside?

Feb 17, 2012 · Replies 1 · Feb 17, 2012

Replies: 1

Views: 3K

How can nano-slit arrays affect the focusing of surface plasmons?

Feb 11, 2012 · Replies 1 · Feb 15, 2012

Replies: 1

Views: 3K

Do Anyons Exist? Detecting via Gravitational Waves

Feb 15, 2012 · Replies 2 · Feb 15, 2012

Replies: 2

Views: 2K

Optimizing Pseudopotentials in SIESTA for Accurate Simulations

Mar 16, 2011 · Replies 1 · Feb 14, 2012

Replies: 1

Views: 5K

Why the surface plasmon always use gold or silver as a metal film?

Nov 28, 2011 · Replies 3 · Feb 13, 2012

Replies: 3

Views: 4K

How Is Large Scale Sonication Applied in Field Settings?

Feb 9, 2012 · Replies 2 · Feb 10, 2012

Replies: 2

Views: 3K

Dielectric Function Explained Physically

Dec 26, 2011 · Replies 11 · Feb 10, 2012

Replies: 11

Views: 6K

Difference between longitudinal and transverse refractive indices

Feb 8, 2012 · Replies 7 · Feb 10, 2012

Replies: 7

Views: 4K

States and energy of paired electrons in BCS

Feb 8, 2012 · Replies 3 · Feb 9, 2012

Replies: 3

Views: 3K

Can electrons occupy energy levels in the band gap?

Sep 28, 2006 · Replies 7 · Feb 9, 2012

Replies: 7

Views: 13K

Electrons and holes: how can holes have a mass?

Jan 30, 2012 · Replies 16 · Feb 8, 2012

Replies: 16

Views: 13K

Energy-dependent cross ection and mean free path

Feb 6, 2012 · Replies 5 · Feb 8, 2012

Replies: 5

Views: 3K

Condensed Matter Super-Radiant Phase Transition

Feb 6, 2012 · Replies 5 · Feb 8, 2012

Replies: 5

Views: 4K

What does it mean for a plasmon to confine or guide light?

Jan 27, 2012 · Replies 4 · Feb 8, 2012

Replies: 4

Views: 4K

Good discussion of experimental data/techniques?

Feb 5, 2012 · Replies 6 · Feb 8, 2012

Replies: 6

Views: 3K

What Units Are Used in Solid State Physics Equations?

Feb 4, 2012 · Replies 1 · Feb 7, 2012

Replies: 1

Views: 3K

Help with Very High Temperature superconductors (28°C )

Jan 31, 2012 · Replies 1 · Feb 5, 2012

Replies: 1

Views: 3K

How do electrons move through a conductor

Feb 4, 2012 · Replies 1 · Feb 4, 2012

Replies: 1

Views: 7K

Are BJT transistors voltage or current controlled?

Jan 27, 2012 · Replies 5 · Feb 4, 2012

Replies: 5

Views: 4K

Can someone explain why a material that is supposed to be conductive imply?

Feb 3, 2012 · Replies 1 · Feb 4, 2012

Replies: 1

Views: 3K

Photoelectric absorption in semiconductors

Feb 3, 2012 · Replies 5 · Feb 3, 2012

Replies: 5

Views: 2K

Can High Temperature Superconductivity Reach Room Temperature?

Jan 28, 2012 · Replies 10 · Feb 3, 2012

Replies: 10

Views: 4K

What is the difference between valence and conduction bands in metallic bonding?

Feb 1, 2012 · Replies 1 · Feb 2, 2012

Replies: 1

Views: 4K

Fermi level de-pinning & Schottky barrier

Jan 18, 2012 · Replies 2 · Feb 2, 2012

Replies: 2

Views: 3K

Understanding Valleys in the Conduction Band

Jan 22, 2012 · Replies 3 · Feb 1, 2012

Replies: 3

Views: 13K

Where did the Photons in Polariton Laser came from?

Jan 30, 2012 · Replies 1 · Feb 1, 2012

Replies: 1

Views: 3K

How do nodes in orbitals affect energy levels?

Jan 30, 2012 · Replies 3 · Feb 1, 2012

Replies: 3

Views: 5K

Aliasing and discrete sinusoids

Jan 28, 2012 · Replies 1 · Jan 31, 2012

Replies: 1

Views: 2K

Does Magnetization Decrease Clockwise in a Ferromagnetic Hysteresis Loop?

Jan 29, 2012 · Replies 2 · Jan 30, 2012

Replies: 2

Views: 4K

How to Plot a 2D band structure?

Jan 24, 2012 · Replies 3 · Jan 29, 2012

Replies: 3

Views: 12K

Superconductivity - speed of light change?

Jan 27, 2012 · Replies 3 · Jan 28, 2012

Replies: 3

Views: 5K

How Does Projected Density of State Relate to Resonances and Bond Formation?

Jan 13, 2012 · Replies 1 · Jan 27, 2012

Replies: 1

Views: 3K

Mesh Cutoff Energy & Fermi Energy in CNTs

Jan 13, 2012 · Replies 1 · Jan 27, 2012

Replies: 1

Views: 4K

BJT(npn) physical operation help

May 26, 2006 · Replies 5 · Jan 27, 2012

Replies: 5

Views: 6K

Ultra-Dense Deuterium: Is it Useful for Spacecraft?

May 12, 2009 · Replies 51 · Jan 26, 2012

2

Replies: 51

Views: 31K

Why is semiconductor band structure expressed in terms of momentum?

Jan 22, 2012 · Replies 4 · Jan 25, 2012

Replies: 4

Views: 7K

The free electron model vs. nearly free electron model.

Jan 24, 2012 · Replies 1 · Jan 24, 2012

Replies: 1

Views: 6K

Rare-earth energy levels from LS coupling

Jan 23, 2012 · Replies 1 · Jan 24, 2012

Replies: 1

Views: 3K

Why do periodic lattices conduct better

Jan 10, 2012 · Replies 24 · Jan 23, 2012

Replies: 24

Views: 7K

Why do wires get hot as current flows? Is it friction?

Jan 23, 2012 · Replies 1 · Jan 23, 2012

Replies: 1

Views: 9K

Optical absorption liquid vs solid

Jan 17, 2012 · Replies 1 · Jan 20, 2012

Replies: 1

Views: 3K

Relationship between light intensity and current

Jan 19, 2012 · Replies 1 · Jan 19, 2012

Replies: 1

Views: 11K

Are Nanoparticles Considered Colloidal Systems?

Dec 22, 2011 · Replies 1 · Jan 17, 2012

Replies: 1

Views: 5K

How can I shouid write an input file for rutile tio2 in quantom

Jan 12, 2012 · Replies 1 · Jan 17, 2012

Replies: 1

Views: 4K

Relation between binding free energy and solubility

Jan 16, 2012 · Replies 1 · Jan 16, 2012

Replies: 1

Views: 5K

Creating plasma using thermite?

Dec 27, 2011 · Replies 6 · Jan 15, 2012

Replies: 6

Views: 9K

What are the ripples in STM images?

Apr 20, 2010 · Replies 20 · Jan 14, 2012

Replies: 20

Views: 8K

Deriving the Phonon Dispersion Relation using Quantum-mechanical approach

Jul 21, 2011 · Replies 8 · Jan 13, 2012

Replies: 8

Views: 6K

How Can Beginners Start Computational Modeling in Heterogeneous Catalysis?

Oct 27, 2007 · Replies 20 · Jan 13, 2012

Replies: 20

Views: 25K

Can the Matrix Element of a+a^+ be Suppressed in Resonance Raman Measurements?

Jan 12, 2012 · Replies 5 · Jan 13, 2012

Replies: 5

Views: 3K

Degrees of freedom and triatomic gas

Jan 10, 2012 · Replies 4 · Jan 12, 2012

Replies: 4

Views: 33K

Regions in the electronic band structure

Jan 12, 2012 · Replies 3 · Jan 12, 2012

Replies: 3

Views: 3K

Unraveling the Mystery of Quantum Fluids: A Look into Superfluidity Theory

Dec 30, 2010 · Replies 13 · Jan 11, 2012

Replies: 13

Views: 5K

Molecular Dynamics simulations Surface interaction energy

Jan 8, 2012 · Replies 2 · Jan 8, 2012

Replies: 2

Views: 4K

Diffraction pattern to crystal structure

Jan 3, 2012 · Replies 6 · Jan 7, 2012

Replies: 6

Views: 7K

Metals and free electron capture

Jan 6, 2012 · Replies 2 · Jan 7, 2012

Replies: 2

Views: 3K

Single Axial Mode And Spectral Hole Burning

Apr 12, 2011 · Replies 1 · Jan 6, 2012

Replies: 1

Views: 3K

Debye's Assumptions For Heat Capacity

Dec 20, 2011 · Replies 5 · Jan 6, 2012

Replies: 5

Views: 12K

Phonon and dispersion relation

Jan 5, 2012 · Replies 2 · Jan 6, 2012

Replies: 2

Views: 4K

Excitons bound to neutral impurities

Jan 4, 2012 · Replies 1 · Jan 6, 2012

Replies: 1

Views: 2K

What if atoms obeyed an inverse-cubed law

Dec 25, 2011 · Replies 3 · Jan 6, 2012

Replies: 3

Views: 4K

Popular Science Book on Condensed Matter/Semiconductors/ etc.

Jan 5, 2012 · Replies 1 · Jan 5, 2012

Replies: 1

Views: 3K

Bragg condition reflection vs. diffraction

Dec 23, 2011 · Replies 3 · Jan 5, 2012

Replies: 3

Views: 5K

Why Do Pendry's Cloaking Equations Differ in My Calculations?

Jan 2, 2012 · Replies 3 · Jan 3, 2012

Replies: 3

Views: 2K

Force required to break the atomic bond

Dec 31, 2011 · Replies 1 · Dec 31, 2011

Replies: 1

Views: 8K

Electronic Band Structure, Ionization Energy

Dec 29, 2011 · Replies 5 · Dec 30, 2011

Replies: 5

Views: 8K

D spacing from X-ray diffraction data

Dec 21, 2011 · Replies 3 · Dec 30, 2011

Replies: 3

Views: 9K

Why are most of the ionic crystals Diamagnetism

Dec 28, 2011 · Replies 1 · Dec 30, 2011

Replies: 1

Views: 3K

What is the Mean Free Path of water in it's liquid state?

Dec 28, 2011 · Replies 1 · Dec 29, 2011

Replies: 1

Views: 16K

Electron drift speed in metals

Dec 26, 2011 · Replies 4 · Dec 28, 2011

Replies: 4

Views: 5K

What Are the Key Differences Between Quantum and Classical Effects in Physics?

Dec 25, 2011 · Replies 2 · Dec 26, 2011

Replies: 2

Views: 3K

Number of atoms in FCC gold cube

Dec 25, 2011 · Replies 1 · Dec 25, 2011

Replies: 1

Views: 4K

Conductors and their increase of resistance with temperature

Dec 24, 2011 · Replies 1 · Dec 24, 2011

Replies: 1

Views: 16K

Back gating of Metal/Semiconductor junction

Dec 14, 2011 · Replies 1 · Dec 23, 2011

Replies: 1

Views: 3K

Chemistry Bonding: Why Are Atoms Bonded?

Dec 1, 2011 · Replies 9 · Dec 23, 2011

Replies: 9

Views: 5K

XRD Data Assistance: Miller Indices | Help with YBCO

Dec 13, 2011 · Replies 2 · Dec 23, 2011

Replies: 2

Views: 4K

Metals: Understand Nickel Electrons & Nuclei

Dec 22, 2011 · Replies 1 · Dec 22, 2011

Replies: 1

Views: 3K

Where Are Neutrinos Located in Atoms?

Dec 19, 2011 · Replies 3 · Dec 20, 2011

Replies: 3

Views: 5K

Reciprocal Lattice: X-Ray Diffraction Explained

Dec 16, 2011 · Replies 2 · Dec 18, 2011

Replies: 2

Views: 4K

Standard Benchmark Problem for Computational Solution of Poisson Equation

Dec 15, 2011 · Replies 1 · Dec 16, 2011

Replies: 1

Views: 4K

Fluorescence Blinking: Definition & Overview

Dec 14, 2011 · Replies 1 · Dec 14, 2011

Replies: 1

Views: 4K

Multiconfiguration Hartree-Fock Method

Apr 23, 2008 · Replies 6 · Dec 14, 2011

Replies: 6

Views: 8K

PV Diagram of a monoatomic gas and diatomic gas

Dec 13, 2011 · Replies 1 · Dec 13, 2011

Replies: 1

Views: 8K

Difference between dispersive medium and non-dispersive medium.

Nov 29, 2011 · Replies 4 · Dec 13, 2011

Replies: 4

Views: 22K

Error in Modern Theory of Critical Phenomena by Shang-Keng Ma

Dec 12, 2011 · Replies 2 · Dec 12, 2011

Replies: 2

Views: 3K

Graphene super strong but not graphite?

Dec 10, 2011 · Replies 4 · Dec 12, 2011

Replies: 4

Views: 5K

Electron wavefunctions in semiconductors

Dec 10, 2011 · Replies 3 · Dec 12, 2011

Replies: 3

Views: 4K

Atoms made of different Quarks

Dec 12, 2011 · Replies 6 · Dec 12, 2011

Replies: 6

Views: 3K

Molecular Orbital energy levels

Dec 11, 2011 · Replies 1 · Dec 12, 2011

Replies: 1

Views: 4K

Colour of inox steel surface upon heating

Dec 10, 2011 · Replies 2 · Dec 10, 2011

Replies: 2

Views: 3K

Band structure and fermi surface of copper

Dec 8, 2011 · Replies 2 · Dec 9, 2011

Replies: 2

Views: 6K

Calculating NIR Path Length for Gas Absorption Analysis

Dec 2, 2011 · Replies 3 · Dec 8, 2011

Replies: 3

Views: 3K

How to Identify Phases and Miller Indices in XRD Data?

Jun 2, 2006 · Replies 73 · Dec 8, 2011

3

Replies: 73

Views: 121K

Frequency distribution not determined by the temporal variation of the pulse?

Dec 6, 2011 · Replies 2 · Dec 7, 2011

Replies: 2

Views: 3K

Can the size of an atom change?

Dec 6, 2011 · Replies 11 · Dec 7, 2011

Replies: 11

Views: 7K

What is the NASA Patent for Producing Heavy Electrons?

Dec 5, 2011 · Replies 1 · Dec 5, 2011

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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