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Fermi Surface Reconstruction in the Electron-doped Cuprate Pr(2-x)CexCuO4 by Dagan, Yoram; Greene, Richard L. is a scholarly article available to read on EtoBox.

What is Fermi Surface Reconstruction in the Electron-doped Cuprate Pr(2-x)CexCuO4 about?

We report extensive resistivity, Hall, and magnetoresistance measurements on thin films of the electron-doped cuprate \PCCO~(PCCO), as a function of doping, temperature and magnetic field. The doping dependence of the resistivity and Hall number at low temperatures are characteristic of a system near a quantum phase transition or a Fermi Surface Reconstruction (FSR) point. The spin magnetoresistance drops to zero near the critical point. The data presented in this paper were compiled during the 2004-2007 period but were never published in this comprehensive form. Because of the recent interest in very similar results now being found in the normal state of hole-doped cuprates, we believe the results of our older, mostly unpublished, work will be of interest to the present community of cuprate researchers. In particular, Fig.11 shows the large change in Hall number at the FSR point in \PCCO, similar to that found recently in YBCO and LSCO (See ref[1] and [2]). Also, Fig.6 illustrates how the resistivity upturn is affected by the FSR. The cause of the resistivity upturn has been attributed to the loss of carriers at doping below the FSR in the hole-doped cuprates (see Ref. 3), however

Author

Dagan, Yoram; Greene, Richard L.

Published

2016

Language

EN