Messages

1

General Questions and Answers / Spin realated calculation

« on: October 31, 2014, 08:43 »

Hi,

I have built a FM-Semiconductor-FM structure. Now i would like to calculate different spin transport related quantities for this particular structure. I unfortunately don't know what are such different quantities i can calculate and how to calculate them in ATK. Few spin related quantities that, i think,can be calculated are (1)spin injection efficiency (2) How long a spin current retains its polarization in a semiconductor. Any advice in this regard will be utterly helpful to me. Have a nice day..!!

2

General Questions and Answers / MTJ Modification

« on: October 29, 2014, 12:11 »

Hi,

3

General Questions and Answers / Re: Building a Si-Si3N4 interface Tutorial

« on: October 27, 2014, 16:02 »

Thanks. Got it. Now how do i set about optimizing geometry? I looked for a tutorial for optimizing a geometry but couldn't find one. Would you please explain it?

4

General Questions and Answers / Optimizing Geometry

« on: October 27, 2014, 12:07 »

hi

5

General Questions and Answers / Re: Building a Si-Si3N4 interface Tutorial

« on: October 27, 2014, 11:34 »

But there is nowhere mentioned in that paper that bonds will disappear. Also why all other bonds appear as before and only these new bonds just vanish. It seems a bit strange to wrap my mind around it.

6

General Questions and Answers / Building a Si-Si3N4 interface Tutorial

« on: October 22, 2014, 12:47 »

I am trying to build this interface as given in the tutorial under Builder tutorials on Quantumwise.com. When i tried the 3rd step under Final adjustment, the bonds between  Si- triangle and N atoms just disappeared. I have attached an image of two isolated N atoms(in selection mode) after bonds with Si-triangles have broken up.I played around with it but couldn't find a solution. So am i doing it wrong or is it something else? Any help in this regard will be greeted with a lot of appreciation. Have a blessed day..!!

7

General Questions and Answers / Re: SiCNT-Fe interface

« on: October 21, 2014, 12:16 »

hi

8

General Questions and Answers / Re: SiCNT-Fe interface

« on: October 14, 2014, 09:23 »

hi

9

General Questions and Answers / Re: SiCNT-Fe interface

« on: October 13, 2014, 10:53 »

hi

10

General Questions and Answers / SiCNT-Fe interface

« on: October 10, 2014, 14:24 »

hi

11

General Questions and Answers / How to build Fe-SiCNT-Fe device geometry for two-probe analysis?

« on: October 1, 2014, 16:21 »

hi