Checkerboard charge density wave and pseudogap in high-$T_{c}$ cuprates

Physics – Condensed Matter – Superconductivity

Scientific paper

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We add a new section II on the symmetry property of the checkerboard CDW

Scientific paper

10.1103/PhysRevB.74.184515

We consider the scenario where a 4-lattice constant, rotationally symmetric charge density wave (CDW) is present in the underdoped cuprates. We prove a theorem that puts strong constraint on the possible form factor of such a CDW. We demonstrate, within mean-field theory, that a particular form factor within the allowed class describes the angle-resolved photoemission and scan tunneling spectroscopy well. We conjecture that the ``large pseudogap'' in cuprates is the consequence of this type of charge density wave.

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