Going beyond the mean-field approximations of alloys and alloy superlattices: A few puzzles solved?

D. S. Kim, H. S. Ko, Y. S. Lim, Y. M. Kim, J. S. Lee, S. J. Rhee, W. S. Kim, S. C. Hong, Y. H. Yee, J. S. Khim, J. M. Jung, S. Huhr, J. H. Lee, J. S. Chang, B. D. Choe, J. C. Woo, P. H. Song, H. J. Choi, S. H. Jhi, J. IhmE. J. Shin, D. Kim, D. H. Woo, K. N. Kang, J. J. Song

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We discuss a few examples of cases in which the widely used mean-field approaches to alloys and alloy superlattices may not give complete solutions. These examples include the anomalously large Stokes and anti-Stokes real space-charge transfer over thick alloy barriers and the spatial extent of optical phonons in alloys and alloy superlattices, which have remained unsolved or controversial. We argue, both theoretically and experimentally, that approaches that fully account for inhomogeneities, partial ordering, and disorder effects in the alloys as well as the proper understanding of coupled quantum-mechanical systems do give answers to these important puzzles.

Original languageEnglish
Pages (from-to)1210-1223
Number of pages14
JournalJournal of the Optical Society of America B: Optical Physics
Volume13
Issue number6
DOIs
Publication statusPublished - 1996 Jun

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Going beyond the mean-field approximations of alloys and alloy superlattices: A few puzzles solved?'. Together they form a unique fingerprint.

  • Cite this

    Kim, D. S., Ko, H. S., Lim, Y. S., Kim, Y. M., Lee, J. S., Rhee, S. J., Kim, W. S., Hong, S. C., Yee, Y. H., Khim, J. S., Jung, J. M., Huhr, S., Lee, J. H., Chang, J. S., Choe, B. D., Woo, J. C., Song, P. H., Choi, H. J., Jhi, S. H., ... Song, J. J. (1996). Going beyond the mean-field approximations of alloys and alloy superlattices: A few puzzles solved? Journal of the Optical Society of America B: Optical Physics, 13(6), 1210-1223. https://doi.org/10.1364/JOSAB.13.001210