Publications

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Chou, MY, Lam PK, Cohen ML.  1983.  CALCULATION OF THE COMPTON PROFILE OF BERYLLIUM. Physical Review B. 28:1696-1700., Number 4 AbstractWebsite
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Chou, MY, Wei SQ, Vanderbilt D.  1993.  SHOULD ALL SURFACES BE RECONSTRUCTED - COMMENT, Jul. Physical Review Letters. 71:461-461., Number 3 AbstractWebsite
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Chou, MY, Cohen ML.  1986.  ELECTRONIC SHELL STRUCTURE IN SIMPLE METAL-CLUSTERS, Jan. Physics Letters A. 113:420-424., Number 8 AbstractWebsite
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Chou, MY, Cohen ML, Louie SG.  1985.  THEORETICAL-STUDY OF STACKING-FAULTS IN SILICON. Physical Review B. 32:7979-7987., Number 12 AbstractWebsite
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Chou, MY, Lam PK, Cohen ML.  1983.  ABINITIO STUDY OF STRUCTURAL AND ELECTRONIC-PROPERTIES OF BERYLLIUM. Physical Review B. 28:4179-4185., Number 8 AbstractWebsite
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Chou, MY, Chelikowsky JR.  1987.  1ST-PRINCIPLES STUDY OF HYDROGEN ADSORPTION ON RU(0001) - POSSIBLE OCCUPATION OF SUBSURFACE SITES, Oct. Physical Review Letters. 59:1737-1740., Number 15 AbstractWebsite
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Chou, MY, Cohen ML, Louie SG.  1986.  THEORETICAL COMPTON PROFILES OF GRAPHITE AND LIC6, May. Physical Review B. 33:6619-6626., Number 10 AbstractWebsite
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Chou, MY, Choi M.  2000.  Comment on "Determination of phonon dispersions from x-ray transmission scattering: The example of silicon", Apr. Physical Review Letters. 84:3733-3733., Number 16 AbstractWebsite
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Chou, MY, Cleland A, Cohen ML.  1984.  TOTAL ENERGIES, ABUNDANCES, AND ELECTRONIC SHELL STRUCTURE OF LITHIUM, SODIUM, AND POTASSIUM CLUSTERS. Solid State Communications. 52:645-648., Number 7 AbstractWebsite
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Chou, MY, Chelikowsky JR.  1987.  STRUCTURAL-PROPERTIES OF THE RU(0001) SURFACE, Feb. Physical Review B. 35:2124-2127., Number 5 AbstractWebsite
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Chou, MY.  1997.  Modern electronic-structure calculations for real materials, Aug. Chinese Journal of Physics. 35:365-372., Number 4 AbstractWebsite

This paper gives a brief overview of the capability of modern electron-structure calculations, the widely used density-functional theory, and the challenge to search for the exact nonlocal exchange-correlation functional. The study of the thermal properties of silicon is used as an example to illustrate the accuracy accomplished by the state-of-the-art first-principles calculations. A recent attempt to extract quantities of central importance in density function theory via computational many-body techniques is also discussed.

Chou, MY, Cohen ML.  1986.  ABINITIO STUDY OF THE STRUCTURAL-PROPERTIES OF MAGNESIUM, Mar. Solid State Communications. 57:785-788., Number 10 AbstractWebsite
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Chu, C-H, Lin H-C, Yeh C-H, Liang Z-Y, Chou M-Y, Chiu P-W.  2019.  End-Bonded Metal Contacts on WSe2 Field-Effect Transistors. ACS Nano. 13:8146-8154., Number 7 AbstractWebsite
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Cohen, ML, Chou MY, Knight WD, Deheer WA.  1987.  PHYSICS OF METAL-CLUSTERS, Jun. Journal of Physical Chemistry. 91:3141-3149., Number 12 AbstractWebsite
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Cohen, MH, Chou MY, Economou EN, John S, Soukoulis CM.  1988.  BAND TAILS, PATH-INTEGRALS, INSTANTONS, POLARONS, AND ALL THAT, Jan. Ibm Journal of Research and Development. 32:82-92., Number 1 AbstractWebsite
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Deheer, WA, Knight WD, Chou MY, Cohen ML.  1987.  ELECTRONIC SHELL STRUCTURE AND METAL-CLUSTERS. Solid State Physics-Advances in Research and Applications. 40:93-181. AbstractWebsite
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Eom, D, Qin S, Chou MY, Shih CK.  2006.  Persistent superconductivity in ultrathin Pb films: A scanning tunneling spectroscopy study, Jan. Physical Review Letters. 96:4., Number 2 AbstractWebsite

By using a low temperature scanning tunneling microscope we have probed the superconducting energy gap of epitaxially grown Pb films as a function of the layer thickness in an ultrathin regime (5-18 ML). The layer-dependent energy gap and transition temperature (T-c) show persistent quantum oscillations down to the lowest thickness without any sign of suppression. Moreover, by comparison with the quantum-well states measured above T-c and the theoretical calculations, we found that the T-c oscillation correlates directly with the density of states oscillation at E-F. The oscillation is manifested by the phase matching of the Fermi wavelength and the layer thickness, resulting in a bilayer periodicity modulated by a longer wavelength quantum beat.

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Feng, B, Chan Y-H, Feng Y, Liu R-Y, Chou MY, Kuroda K, Yaji K, Harasawa A, Moras P, Barinov A, Malaeb WG, Bareille C, Kondo T, Shin S, Komori F, Chiang T-C, Shi Y, Matsuda I.  2016.  Spin Texture in Type II Weyl Semimetal WTe2. PHYSICAL REVIEW B. 94(19):195134.
Flötotto, D, Bai Y, Chan Y-H, Chen P, Wang X, Rossi P, Xu C-Z, Zhang C, Hlevyack JA, Denlinger JD, Hong H, Chou M-Y, Mittemeijer EJ, Eckstein JN, Chiang T-C.  2018.  In Situ Strain Tuning of the Dirac Surface States in Bi2Se3 Films, 2018. Nano LettersNano Letters. 18(9):5628-5632.: American Chemical Society AbstractWebsite
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Foulkes, WMC, Nekovee M, Hood RQ, Chou MY, Needs RJ, Rajagopal G, Williamson AJ.  1997.  Quantum Monte Carlo studies of exchange and correlation in solids, Apr. Abstracts of Papers of the American Chemical Society. 213:125-COMP. AbstractWebsite
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Geist, W, Chou MY.  2007.  Variational calculation of the depolarization of the maximum density droplet in two-dimensional quantum dots, Dec. Physical Review B. 76:7., Number 23 AbstractWebsite

We show that, if a variational parameter in the Fock-Darwin states is optimized, the lowest Landau level (LLL) approximation agrees well with configuration interaction results using several Landau levels for a wide range of confining and Coulomb interaction strengths. Within the optimized LLL approximation, we study several phase transitions beyond the maximum density droplet for four to nine electrons and find similar patterns in the phase-space diagrams for angular momenta up to N(N+1)/2. Calculations for larger angular momentum reveal unpolarized phases for filling factors up to nu=1/3.

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Hlevyack, JA, Chan Y-H, Lin M-K, He T, Peng W-H, Royal EC, Chou M-Y, Chiang T-C.  2022.  Emergence of topological and trivial interface states in VSe2 films coupled to Bi2Se3. Phys. Rev. B. 105:195119. AbstractWebsite

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Hlevyack, JA, Chan Y-H, Lin M-K, He T, Peng W-H, Royal EC, Chou M-Y, Chiang T-C.  2022.  Emergence of topological and trivial interface states in VSe2 films coupled to Bi2Se3, May. Phys. Rev. B. 105:195119.: American Physical Society AbstractWebsite

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Holbrook, M, Chen Y, Kim H, Frammolino L, Liu M, Pan C-R, Chou M-Y, Zhang C, Shih C-K.  2023.  Creating a Nanoscale Lateral Junction in a Semiconductor Monolayer with a Large Built-in Potential. ACS NANO. 17:6966-6972. AbstractWebsite

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Holt, M, Zschack P, Hong H, Chou MY, Chiang TC.  2001.  X-ray studies of phonon softening in TiSe2, Apr. Physical Review Letters. 86:3799-3802., Number 17 AbstractWebsite

The charge-density-wave transition in TiSe2, which results in a commensurate (2 X 2 X 2) superlattice at temperatures below similar to 200 K, presumably involves softening of a zone-boundary phonon mode. For the first time, this phonon-softening behavior has been examined over a wide temperature range by synchroton x-ray thermal diffuse scattering.