Publication
Physical Review B
Paper

Phonons in CaCuO2

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Abstract

CaCuO2 is the infinite number of Cu-O planes limit of most of the high-temperature superconductors. From infrared reflectivity of ceramic (Ca0.86Sr0.14)CuO2, we have measured all five of the group-theoretically allowed phonons. Also, group theory predicts no Raman-allowed phonons, in agreement with our observations. We compare the observed phonons with those reported in other high-temperature superconductors and, in particular, with Nd2CuO4 (T structure) because of the similar Cu-O plane structural element. © 1989 The American Physical Society.

Date

01 Oct 1989

Publication

Physical Review B

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