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. Ihm; E. J. Shin; D. Kim; D. H. Woo; K. N. Kang; J. J. Song

doi:10.1364/JOSAB.13.001210

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

School of Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

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 language	English
Pages (from-to)	1210-1223
Number of pages	14
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	13
Issue number	6
DOIs	https://doi.org/10.1364/JOSAB.13.001210
State	Published - Jun 1996

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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

@article{78570e4162834776aef25864bf144ec8,

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

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.",

author = "Kim, {D. S.} and Ko, {H. S.} and Lim, {Y. S.} and Kim, {Y. M.} and Lee, {J. S.} and Rhee, {S. J.} and Kim, {W. S.} and Hong, {S. C.} and Yee, {Y. H.} and Khim, {J. S.} and Jung, {J. M.} and S. Huhr and Lee, {J. H.} and Chang, {J. S.} and Choe, {B. D.} and Woo, {J. C.} and Song, {P. H.} and Choi, {H. J.} and Jhi, {S. H.} and J. Ihm and Shin, {E. J.} and D. Kim and Woo, {D. H.} and Kang, {K. N.} and Song, {J. J.}",

year = "1996",

month = jun,

doi = "10.1364/JOSAB.13.001210",

language = "English",

volume = "13",

pages = "1210--1223",

journal = "Journal of the Optical Society of America B: Optical Physics",

issn = "0740-3224",

publisher = "Optica Publishing Group (formerly OSA)",

number = "6",

}

Kim, DS, Ko, HS, Lim, YS, Kim, YM, Lee, JS, Rhee, SJ, Kim, WS, Hong, SC, Yee, YH, Khim, JS, Jung, JM, Huhr, S, Lee, JH, Chang, JS, Choe, BD, Woo, JC, Song, PH, Choi, HJ, Jhi, SH, Ihm, J, Shin, EJ, Kim, D, Woo, DH, Kang, KN & Song, JJ 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, vol. 13, no. 6, pp. 1210-1223. https://doi.org/10.1364/JOSAB.13.001210

TY - JOUR

T1 - Going beyond the mean-field approximations of alloys and alloy superlattices

T2 - A few puzzles solved?

AU - Kim, D. S.

AU - Ko, H. S.

AU - Lim, Y. S.

AU - Kim, Y. M.

AU - Lee, J. S.

AU - Rhee, S. J.

AU - Kim, W. S.

AU - Hong, S. C.

AU - Yee, Y. H.

AU - Khim, J. S.

AU - Jung, J. M.

AU - Huhr, S.

AU - Lee, J. H.

AU - Chang, J. S.

AU - Choe, B. D.

AU - Woo, J. C.

AU - Song, P. H.

AU - Choi, H. J.

AU - Jhi, S. H.

AU - Ihm, J.

AU - Shin, E. J.

AU - Kim, D.

AU - Woo, D. H.

AU - Kang, K. N.

AU - Song, J. J.

PY - 1996/6

Y1 - 1996/6

N2 - 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.

AB - 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.

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DO - 10.1364/JOSAB.13.001210

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JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

IS - 6

ER -

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

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