DOI:https://doi.org/10.1103/PhysRevLett.73.3180
©1994 American Physical Society
J. M. Leng, S. Jeglinski, X. Wei, R. E. Benner, and Z. V. Vardeny
F. Guo and S. Mazumdar
Vol. 73, Iss. 23 — 5 December 1994
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