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Structure, exchange interaction, and Madelung potential of R2CuO4 (R=Pr, Nd, Sm, Eu, Gd, and La)

✍ Scribed by Takuya Uzumaki; Nobuo Kamehara; Koichi Niwa

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
178 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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Infrared absorption of Nd2βˆ’xCexCuO4 and
Infrared absorption of Nd2βˆ’xCexCuO4 and R2CuO4 (R=Pr, Nd, Sm, and Gd)
✍ Masayuki Udagawa; Yoshinori Nagaoka; Tatefumi Johkou; Norio Ogita; Miki Masada; πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 151 KB

Infrared absorption spectra of Nd2\_~CexCuO4 and R2CuO4 (R=Pr, Nd, Sm, and Gd) have been measured in the energy region between 250 and 800cm-]at room temperature. For Nd2-xCexCuO4 , it is found that the mode at about 350cm-1, which is the vibration of oxygen in the R-O layers along the a-axis, disap