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Questions related from Rajaji Vincent
I would like to explain my question with the following illustrative situation. In general, when we apply the high-pressure to the solid materials at room temperature conditions, the solid...
22 May 2024 1,434 3 View
I would like to explain my question with the following illustrative situation. In general, when we apply the high-pressure and high temperature to the solid materials, the solid melts and it goes...
22 February 2024 4,621 4 View
I would like to explain my question with the following illustrative situation. I am experimental physicist. Recently, we have done some experiments on one halide based materials which show the...
25 July 2022 6,001 0 View
What is the minimum energy required to change the orbital angular momentum or orbital energy? I would like to explain my question with the following illustrative situation. In general, when we...
19 July 2022 3,321 6 View
I would like to explain my question with the following illustrative situation. In the water molecule, under suitable chemical conditions, it breaks into H+ and (OH)-. Similar way, Are they any...
13 January 2022 2,401 7 View
I would like to illustrate this question below. I am using Raman spectrometer for studying the insulator to metal transition of materials. Does incident light depend the penetration depth of the...
11 April 2018 2,364 11 View
The signal/noise ratio is an important parameter of the spectrometer. Better the signal to noise ratio, better the spectrum’s quality. I am working in the Raman spectroscopy field. Based on the...
02 April 2018 8,097 8 View
The spin orbit coupling of the element is directly to proportional to the atomic number. Hence, the heavier atom will have high spin orbit coupling. How do measure the spin orbit coupling of the...
02 April 2018 7,552 4 View
I like to illustrate this question as below. In real solids, interactions of electrons and quasi- particles (phonon, spin (magnon), etc.,) are very important and that give rise to many important...
02 April 2018 876 3 View
This question is related to high-pressure science. Generally, the Murnaghan Equation of state (EOS) relates the mathematical relationship between the P vs Volume (V). The equation attached in this...
01 November 2017 2,772 6 View
I am working on the high pressure (structural and vibrational) studies on strong spin orbit coupling materials. One of my material show phase transition (new structure) under pressure. I have...
31 July 2017 171 8 View
I would like to explain this question with following description. The system (crystal) can be perturbed by pressure, temperature, etc. Then the crystal may undergoes structural transition (from...
08 February 2016 8,035 3 View
In the high pressure XRD, pressure versus volume data is fitted by Birch-Murnaghan equation of state (BM-EOS). The fit will yield bulk modulus (B0), derivative of bulk modulus (B0’) and volume at...
01 February 2016 1,954 4 View
Generally, the line width (full width at half maximum) of Raman peak signifies the life time of phonon as FWHM is inversely proportional to life time. This life time may increase/decrease...
26 January 2016 962 7 View
The study of external perturbation to the Raman modes is very novel and well understood. For example, pressure and temperature effects on solid are given below. Pressure effects: 1. The...
04 January 2016 1,878 2 View
The Raman spectrometer was calibrated initially using Ne, Kr and Xe sources. Even though Raman spectrometer was calibrated, Raman shift (Position (cm-1) of particular Raman peak) has an error...
28 December 2015 5,116 9 View
01 January 1970 9,830 0 View
