Questions and Answers: Closed Question
Status: Closed
Arvind Ajoy @ 09:52 AM on 05 Jun, 2009
What does confinement direction in UTB refer to?
Hi, In calculating the bandstructure for UTB films, the field “Confinement Direction” mentions the “Y” direction. However, the graphic shows “Y” along the width of the device.
What does “Confinement Direction” refer to ?
Thanks Arvind
Responses (1)
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Abhijeet Paul @ 08:38 PM on 07 Jul, 2009
Thanks for bringing this to notice. The problem in the description of the tooltips have been fixed and new version of the tool has this correct. Thanks for using this tool.
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Benjamin P Haley @ 11:24 AM on 05 Jun, 2009
Hi, hanks for using band structure lab! In the UTB case, the Y direction is the non-transport direction which is “sandwiched” between the top and bottom oxide layers. By specifying both the transport (X) and confinement (Y) crystal vectors we can orient the device for calculating band structure. any of the labels on nanoHUB tools have “tool tips” which pop up brief explanations of input fields, if you hold your mouse over the label.
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Arvind Ajoy @ 01:26 AM on 08 Jun, 2009
Hi Benjamin
Thanks for your reply. My source of confusion arises from the fact that the graphic inset shows the “Z” direction as being the one sandwiched between the top and bottom oxide layers. Which of the graphic/tool tip is correct?
Arvind
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Benjamin P Haley @ 09:21 AM on 08 Jun, 2009
The graphic is correct. Perhaps we should rewrite the tool tip — maybe “between” is not the best word for the Y vector. It is the non-transport crystal vector in the confined region. Thanks for bringing this to my attention.
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Gerhard Klimeck @ 08:15 PM on 16 Jun, 2009
Can the tool tip be edited? and we can then close the question?
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