What is Solid state physics: Definition and 264 Discussions

Solid-state physics is the study of rigid matter, or solids, through methods such as quantum mechanics, crystallography, electromagnetism, and metallurgy. It is the largest branch of condensed matter physics. Solid-state physics studies how the large-scale properties of solid materials result from their atomic-scale properties. Thus, solid-state physics forms a theoretical basis of materials science. It also has direct applications, for example in the technology of transistors and semiconductors.

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  1. Ethan Klein

    Mechanical Engineering (BS) Vs. Pursuing Physics PhD

    Hello everyone. Currently, I am an undergraduate sophomore planning to study physics and in the process of transferring from community college to University. I am seeking advice on deciding between pursuing a mechanical engineering degree (BS) or a PhD in physics. My journey so far has taken...
  2. G

    A Energy gap between energy bands in solid state physics

    I know that Bragg reflection in solid states at the edge of e.g. the first Brillouin Zone causes standing waves at these edges, which creates a gap between the energy bands. In this picture below you can see the probability density of a symmetric (+) and anti-symmetric (-) standing wave. The...
  3. fluidistic

    I How come electrons and phonons lead to the heat equation?

    Phonons on their own lead to the common heat equation. One sees that for example in insulators or non doped semiconductors. However in metals (or conductors), the electrons are the ones that are mostly responsible for the heat transfer, which extremely surprisingly to me, is also of the form of...
  4. L

    A The hermicity of a k.p matrix?

    I am trying to use the k.p method to study quantum well band structure. One example Hamiltonian look like this [J. Appl. Phys., 116, 033709(2014)] where ##{{\hat k}_ \pm } = {{\hat k}_x} \pm i{{\hat k}_y}## and the matrix elements are function of ##{{\hat k}_i}## and if quantum well is grown...
  5. Muthumanimaran

    Bond Strength and Force constant

    Homework Statement Homework EquationsThe Attempt at a Solution (a) Total energy is $$E=\frac{-e^2}{4\pi\epsilon_{0}R}-\frac{B}{R^{5/6}}$$ Taking derivative of E with respect to R and equating it to zero when R=R0 yields, i.e, $$\frac{dE}{dR}{\bigg|}_{R=R_0}=0$$ when R=R0 yields...
  6. GiovanniNunziante

    A Derivation of the Heisenberg equation for electron density

    I'm studying plasmons from "Haken-Quantum Field Theory of Solids", and i need some help in the calculation of the equation of motion of eletrons' density \begin{equation} \hat{\rho}_{\overrightarrow{q}} = \frac{1}{\sqrt{V}} \sum_{\overrightarrow{k}}...
  7. Philethan

    A High-field Hall effect and magnetoresistance

    I'm reading Mermin's Solid State Physics, chapter 12: The semiclasssical model of electron dynamics. I know the current density from the ##n## band is $$ \mathbf{j}=(-e)\int_{\text{occupied}}f(\epsilon_{\text{n}}(\mathbf{k}))\frac{d\mathbf{k}}{4\pi^3}\mathbf{v}_{\text{n}}(\mathbf{k}). $$ In...
  8. Philethan

    A Bloch theorem proof with V(x)=V(x+ma)

    In Grosso's Solid State Physics, chapter 1, page 2, The author said that: Therefore, I plug (4) into (1), and I expect that I can get the following relationship, which proves that ##H\left|W_{k}(x)\right\rangle## belongs to the subspace ##\mathbf{S}_{k}## of plane waves of wavenumbers...
  9. Philethan

    A Why do we need to know "two-bands" Hall coefficient and magn

    (Oh my god, why can't my post show normally? Some sentences just disappear, but I can still see them while editing. It's very weird. Can someone help me? I've reported.)I know only partially filled bands result in current density, and I think there must be not only 2 partially filled bands, but...
  10. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 1: Atom to Solid Structure

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 1: Atom to Solid Structure

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  11. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 2:  Atom to Solid Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 2: Atom to Solid Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  12. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 3: Structure of Solid

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 3: Structure of Solid

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  13. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 4 : Structure of Solid (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 4 : Structure of Solid (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  14. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 5: Crystal Structure

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 5: Crystal Structure

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  15. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 1 Assignment Solution

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 1 Assignment Solution

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  16. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 6: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 6: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  17. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 7: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 7: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  18. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 8: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 8: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  19. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 9: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 9: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  20. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 10: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 10: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  21. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 11: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 11: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  22. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 2 Assignment Solution

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 2 Assignment Solution

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  23. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 12: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 12: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  24. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 13: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 13: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  25. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 14: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 14: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  26. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 15: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 15: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  27. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 16: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 16: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  28. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 17: Crystal Structure (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 17: Crystal Structure (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  29. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 18: X-ray Diffraction from Crystal

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 18: X-ray Diffraction from Crystal

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  30. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 3 Assignment Solution

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 3 Assignment Solution

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  31. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 19 : X-ray Diffraction from Crystal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 19 : X-ray Diffraction from Crystal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  32. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 20 : X-ray Diffraction from Crystal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 20 : X-ray Diffraction from Crystal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  33. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 21: X-ray Diffraction from Crystal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 21: X-ray Diffraction from Crystal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  34. Solid State Physics by Prof. Amal Kumar Das (NPTEL):-Lecture 22: X-ray Diffraction from Crystal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):-Lecture 22: X-ray Diffraction from Crystal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  35. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 23: X-ray Diffraction from Crystal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 23: X-ray Diffraction from Crystal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  36. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 24 : X-ray Diffraction from Crystal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 24 : X-ray Diffraction from Crystal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  37. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 25 : Reciprocal Lattice

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 25 : Reciprocal Lattice

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  38. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 4 assignment solution

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Week 4 assignment solution

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  39. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 26: Reciprocal Lattice (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 26: Reciprocal Lattice (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  40. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 27: Reciprocal Lattice (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 27: Reciprocal Lattice (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  41. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 28: Reciprocal Lattice (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 28: Reciprocal Lattice (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  42. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 29: Reciprocal Lattice (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 29: Reciprocal Lattice (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  43. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 30: Intensity of Bragg Diffraction

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 30: Intensity of Bragg Diffraction

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  44. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 31: Intensity of Bragg Diffraction (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 31: Intensity of Bragg Diffraction (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  45. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 32: Electrical Properties of Metal

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 32: Electrical Properties of Metal

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  46. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 33: Electrical Properties of Metal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 33: Electrical Properties of Metal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  47. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 34: Electrical Properties of Metal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 34: Electrical Properties of Metal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  48. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 35: Electrical Properties of Metal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 35: Electrical Properties of Metal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  49. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 36: Electrical Properties of Metal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 36: Electrical Properties of Metal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
  50. Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 37: Electrical Properties of Metal (Contd.)

    Solid State Physics by Prof. Amal Kumar Das (NPTEL):- Lecture 37: Electrical Properties of Metal (Contd.)

    Copyright strictly reserved to Prof. Amal Kumar Das and NPTEL, Govt. of India. Lectures: http://www.nptel.ac.in/courses/115105099/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=115105099
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