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 Publish in OALib Journal ISSN: 2333-9721 APC: Only $99  Views Downloads  Relative Articles Pairing in High Temperature Superconductors and Berry Phase Berry phases and the intrinsic thermal Hall effect in high temperature cuprate superconductors Berry phase in Magnetic Superconductors Berry Phase Coupling and the Cuprate Neutron Scattering Resonance Charge Order in the Pseudogap Phase of Cuprate Superconductors Observability of quantum phase fluctuations in cuprate superconductors Pairing Gaps, Pseudogaps, and Phase Diagrams for Cuprate Superconductors The enigma of the pseudogap phase of the cuprate superconductors Quantum phase transitions of antiferromagnets and the cuprate superconductors The Effects of Phase Separation in the Cuprate Superconductors More... Physics 2014 # Berry Phase in Cuprate Superconductors  Full-Text Cite this paper Abstract: Geometrical Berry phase is recognized as having profound implications for the properties of electronic systems. Over the last decade, Berry phase has been essential to our understanding of new materials, including graphene and topological insulators. The Berry phase can be accessed via its contribution to the phase mismatch in quantum oscillation experiments, where electrons accumulate a phase as they traverse closed cyclotron orbits in momentum space. The high-temperature cuprate superconductors are a class of materials where the Berry phase is thus far unknown despite the large body of existing quantum oscillations data. In this report we present a systematic Berry phase analysis of Shubnikov - de Haas measurements on the hole-doped cuprates YBa$_2$Cu$_3$O$_{y}$, YBa$_2$Cu$_4$O$_8$, HgBa$_2$CuO$_{4 + \delta}$, and the electron-doped cuprate Nd$_{2-x}$Ce$_x$CuO$_4$. For the hole-doped materials, a trivial Berry phase of 0 mod$2\pi$is systematically observed whereas the electron-doped Nd$_{2-x}$Ce$_x$CuO$_4\$ exhibits a significant non-zero Berry phase. These observations set constraints on the nature of the high-field normal state of the cuprates and points towards contrasting behaviour between hole-doped and electron-doped materials. We discuss this difference in light of recent developments related to charge density-wave and broken time-reversal symmetry states.

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