Li-Ming Yu, Alain Degiovanni, A. Thiry, J. Ghijsen, R. Caudano, et al.. Infrared optical constants of orthorhombic IV-VI lamellar semiconductors refined by a combined study using optical and electronic spectroscopies.
Physical Review B: Condensed Matter and Materials Physics, American Physical Society, 1993, 47 (24), pp.16222-16228.
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