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Investigation of picosecond relaxation processes in cresyl violet

โœ Scribed by Junye Liu; Shihua Huang; Weiping Qin; Jiaqi Yu


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
366 KB
Volume
91
Category
Article
ISSN
0030-4018

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We report a relaxation study of elementary excitations in heavily underdoped Bi 2 Sr 2 CaCu 2 O 8+d (Bi2212) using picosecond Raman Spectroscopy. In B 1g symmetry, the two-magnon peak shows a super-linear power dependence which is ascribed to excess magnon population. In contrast, the broad feature