Talk:Superlattice

Equilibrium/artificial

There is a bit of ambiguity whether superlattice refers to equilibrium crystal structures (such as the NaCl-structure, which is a superlattice of the simple cubic structure), or artificial periodic layers. To me as a condensed matter physicist the first meaning is primary, while I do see that for, e.g., the semiconductor community this is different. As it is, all paragraphs apart from the Discovery understand the second meaning. I think that at least for the introduction the ambiguity should be clarified, and it would be nice if also the following paragraphs clearly state which of those two aspects the discuss. Common to both aspects is that if you keep the positions of all atoms fixed but randomly exchange the elements, you get some underlying fundamental lattice, while if you consider also the occupations of the atomic sites, you have a longer repeating distance. This should go into the introduction. Of course, with artificial superlattices you have also lattice constant differences (not to speak of arrays of quantum dots), so it seems that the first meaning is the only valid one in the strict sense of the word. Seattle Jörg (talk) 08:43, 20 January 2016 (UTC)

Assessment comment

The comment(s) below were originally left at Talk:Superlattice/CommentsTalk:Superlattice/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

superlattice also refers to crystal structures like L12, D03, B2 etc...

Last edited at 22:38, 14 May 2008 (UTC). Substituted at 07:20, 30 April 2016 (UTC)

Superstructure article

Superstructure Doesn't it worth to make a common article for this kind of structures? There is also a relationship with articles where multilayer optical devices are mentioned.--193.146.9.175 (talk) 11:04, 19 May 2016 (UTC)

Request: Add foundational references for the Type II Superlattice (SL) system

Conflict of Interest (COI) Disclosure: I am the principal author of the papers cited below, which I am proposing as foundational references. I propose adding two seminal papers to the "Superlattice" article's reference list to ensure its completeness, as they are crucial to the history and impact of the Type II Superlattice (SL) system. The Type II SL has, over the last few decades, emerged as the most impactful Superlattice type, revolutionizing the infrared light detection field and seeing widespread use in civilian and military applications. Its key advantage is that its sensitivity range can be easily tuned by changing its compositional and structural parameters. Approximately 3,000–5,000 research papers have been written on the subject. The two papers I recommend adding are:

  • Origin of the Type II SL Field: The paper that originated the Type II SL concept is:
       "A New Semiconductor Superlattice," G. A. Sai-Halasz, R. Tsu, and L. Esaki, Appl. Phys. Lett., Vol. 30, p. 651 (1977). doi.org/10.1063/1.89273 (Note: This paper has received over 800 citations, according to Google Scholar.)
  • First Measurement and Type II Classification: The first measurement of the tunable absorption properties of the Type II system, and the paper where the “Type II” classification itself originated, is:
       "Optical Absorption of In(1-x)Ga(x)As—GaSb(1-y)As(y) Superlattices," G. A. Sai-Halasz, L. L. Chang, J.-M. Welter, C.-A. Chang, and L. Esaki, Solid State Commun., Vol. 27, p. 935 (1978). doi.org/10.1016/0038-1098(78)91010-4

I respectfully contend that the current "Superlattice" article is not complete without these two foundational references. I am not suggesting a full rewrite or re-numbering of the existing in-text citations, but simply that these two papers be appended to the list of general citations/references at the end of the article. ~2025-32667-85 (talk) 18:43, 10 November 2025 (UTC)