Solid State Physics

Theory and applications of solid-state physics. | Review and cite the most recent SOLID STATE PHYSICS protocol, troubleshooting and other methodology information | Contact experts in SOLID STATE PHYSICS to get answers

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Questions related to Solid State Physics

Is it possible that phonon dispersion curves differ along the same direction?

I have a plot of phonon dispersion curves for rhombohedral compound. What is intriguing me is that the plot shows the same direction (Gam->X) twice and dispersion curves are slightly different...

27 January 2016 484 5 View

How can I measure the phase composition from the image?

I can`t find the applicable software.

22 January 2016 5,800 3 View

How can I acquire low frequency mode < 100 cm-1 in Raman scattering?

I faced a huge challenge to acquire the low frequency Raman mode

21 January 2016 532 11 View

Why should the temperature difference be minimized during seebeck effect measurment?

I kept temperature difference between hot side and cold side near about 10-15K during seebeck effect measurement of bismuth telluride pellets. Is it wrong procedure to measure see beck coefficient ?

19 January 2016 5,598 4 View

Why is integration over Brillouin zone necessary for evaluation of physical quantities?

Hi everyone, I've been trying to understand k-points recently, especially as it relates to DFT calculations, and I'm still confused about the Brillouin zone and an apparent paradox: 1. For...

19 January 2016 3,559 3 View

Are there any solid oxide fuel cell (SOFC) testing facilities under payment basis?

Respected Professors and Friends I want to perform SOFC efficiency test for my powder samples. I my current work I got the conductivity of 0.016 S/Cm at 600 C. So i want to perform the SOFC...

13 January 2016 1,624 4 View

What is the difference between helical surface state and chiral surface states in Topological Insulators?

Please explain in simple way. Thank you

13 January 2016 4,049 3 View

How to determine band structure of p-n-n heterojuntions?

For a hybrid semiconductor with a p-n-n band configuration, how to determnine energy levels of valance bands and conduction bands under a certain bias voltage? How to caculate its total...

09 January 2016 3,851 3 View

How to build supercell from unit cell?

Hello, I have unit cell with 56 atoms get it from space group fd-3m:origin 2, but now I need a cell of double number of atoms (112 atoms). How can I build a cell with the double number of atoms?

06 January 2016 7,415 6 View

How can I solve laplace equation numerically on a rectangle geometry when one axisc is much bigger than the other?

I want to solve the laplace equation on rectangle geometry.My problem is that one axisc is much bigger than the other.x=100 nm & y~1cmOne edge with Dirichlet boundaryOther two edges with...

31 December 2015 890 11 View

Can EDAX charecterization be used to find percentage of nano particle added in epoxy resin?

i doped nano particle in epoxy resin and want to study the percentage based charecterization .......so EDAX analysis is useful or not??(because epoxyresin is insulator) if not than can anyone...

26 December 2015 2,712 8 View

How to calculate frequency dependent dielectic matrix in terahertz regime?

Hello, Could you tell me how can I calculate frequency dependent dielectric matrix in terahertz regime for molecule. I have created a super-cell with vacuum layers. Any ideas?

14 December 2015 6,351 4 View

Not able to get RHEED patterns. What I have to do?

Hi We have a MBE system equipped with RHEED. I am using GaAs wafer and heating substrate temp as high as 620C but not getting any patterns. though there is direct beam. what I have to do? can any...

11 December 2015 9,777 3 View

How can I determine the fluences (uJ/cm2) and the penetration length of a monochromatic light?

How to determine the fluences (uJ/cm2) and the penetration length of a monochromatic light? Thank you!

05 December 2015 1,371 3 View

Could you give any advice about transport length of ions in PMMA calculation?

I had calculated transport length of ions in PMMA using ions' Monte-Carlo trajectories modeled by TRIM with option 'Detailed calculations with full damage cascades'. I used the coordinates of...

02 December 2015 9,833 3 View

What is a reason for an artifact-like peak at aprox 30 dg in misorient spectra for bainitic&martensitic structures by EBSd?

Normally only two pronounced maxima (at 5to20 and 50to60 degs) are observed. I wonder whether the mentioned feature at about 30dg may be due to 1. Poor local diffraction (say in terms of CI), 2....

19 November 2015 7,700 8 View

Any advice with the sputtering target build-up charge calculations?

In most literature the reverse voltage used in the Pulsed-DC sputtering is mentioned as a method for build-up charge dissipation and thus preventing arcing on the poisoned target surface. The...

04 November 2015 5,104 4 View

How do I calculate/estimate the "Electron and Hole site densities" (N_0,P_0)?

I have a 1:4 weight ratio blend of APFO3:PCBM with the density of about 1200kg*m−3. I'm also assuming one site per APFO3 monomer and PCBM molecule. How to calculate/estimate the "Electron and Hole...

28 October 2015 8,322 1 View

How can we decrease the effect of the hot electrons in FinFETS?

An increase in the electric field in the channel may result in the generation of hot electrons. This may induce degradation of the gate oxide. Are there any reports on how to prevent this...

28 October 2015 9,362 5 View

What would be a typical internal energy value for a magnetic phase transition from a ferromagnetic state to an antiferromagnetic state in a TMO?

What would the order of magnitude for such a transition in a DFT code in say NiO? Fe2O3? Fe3O4?

19 October 2015 9,012 5 View

Could someone be so kind to tell me under which circumstance 'metal vapor directly without going through liquid phase' would occur?

I was reading some papers about mechanism of ultrafast laser ablation on metal specimen. 'Metal direct vapor' or ' plasma ' show up several times [1]. Does that mean that metallic bond has been...

10 October 2015 1,518 6 View

Any advice on the vapor pressure behavior of Rose Bengal: outgassing or volatilization behavior?

I am using Rose Bengal as a photosensitizer coated on a substrate. To cure this layer we are considering use of a vacuum oven to remove the solvents but are concerned about outgassing of the RB....

09 October 2015 8,303 2 View

How could we separately calculate magnetic and lattice entropy for a magneto-structural transition (i.e. magnetic and structure are coupled)?

All researchers. How could we separately calculate magnetic and lattice entropy for a magneto-structural transition (i.e. magnetic and structure are coupled)?

04 October 2015 2,082 8 View

For Peroviskite [ABX3] , Does the Coordination number of any ion (A , B , or X) play an important factor in Ferroelectric Phase transition?

As you know that BaTiO3 and the other peroviskite [ ABX3 ] have many phase transition with temperature Rhombohedral - Orthorhombic - Tetragonal - Cubic - Hexagonal . Taking into consideration: 1-...

08 August 2015 4,534 5 View

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