Paper Title:

Low Frequency Raman Modes of Bi2 −x PbxSr1.6Ln0.4CuO6 −δ

Periodical Materials Science Forum (Volume 700)
Main Theme Advanced Materials and Nanotechnology
Edited by B. J. Ruck and T. Kemmitt
Pages 11-14
DOI 10.4028/www.scientific.net/MSF.700.11
Citation Benjamin P. P. Mallett et al., 2011, Materials Science Forum, 700, 11
Online since September, 2011
Authors Benjamin P. P. Mallett, Thierry Schnyder, Grant V. M. Williams, Jeffery L. Tallon
Keywords Bi2201, Raman Modes
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Abstract

Raman measurements were made on polycrystalline Bi2􀀀xPbxSr1:6Ln0:4CuO6􀀀 for Ln=fLa,Nd, Sm, Eug with various x and doping states. Our measurements suggest a signi cant Bicontribution to the 118cm􀀀1 mode but not to the 70cm􀀀1 mode which instead shifts to lowerfrequencies with increasing number of CuO2 layers in the Bi-based family. Shifts in the O(2)Srapical oxygen mode can be attributed to unit cell contraction within experimental error.