How to do grazing incidence X-ray diffraction (GIXRD) measurements?

Presently, I have been focused to study the crystallographic aspects of ~ 50 nm Gold thin film/ Si(001) substrate. As the thickness of the grown thin film is very small, during out of plane...

31 December 2017 7,288 6 View

Why etch pits are formed for direct current (DC) heating of Ge(001) ?

I was using direct current (DC) heating method for cleaning of native Germanium Oxide (GeOx) layer from the top of the Ge(001) substrate. For doing this, I had kept the Ge(001) substrate at 400...

10 November 2017 6,958 3 View

Is the direct current (DC) heating method suitable for preparation of reconstructed Ge(hkl) substrates ?

For preparation of reconstructed Si(hkl) substrates, we generally employ direct current (DC) heating method in ultra-high vacuum (UHV) condition. In this case, initially we degas the Si(hkl)...

09 October 2017 1,717 5 View

Why RHEED intensity oscillation is not observed for Ge/Si(111) growth ?

I was carrying out the in-situ RHEED intensity oscillation measurements during growth of Ge on reconstructed Si(111) substrate inside the MBE chamber. Substrate temperature was maintained at ~ 300...

09 October 2017 4,816 3 View

What is the definition of 'interface energy'?

Hi, We grow thin film material A on top the substrate with other material B. In some situations, grown material is the same as the material of the substrate. Briefly, for epitaxial growth ,...

01 January 1970 5,746 6 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View