X-ray natural dichroism and chiral order in underdoped cuprates

Abstract

The origin of the Kerr rotation observed in the pseudogap phase of cuprates has been the subject of much speculation. Recently, it has been proposed that this rotation might be due to chiral charge order. Here, I investigate whether such order can be observed by x-ray natural circular dichroism (XNCD). Several types of charge order were considered, and they can give rise to an XNCD signal depending on the stacking of the order along the c-axis.

4 pages, 4 figures

References in corpus (11)

• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Magnetic order in the pseudogap phase of high-$T_C$ superconductors
• Polar Kerr Effect Measurements of YBa2Cu3O6+x: Evidence for Broken Symmetry Near the Pseudogap Temperature
• From a single-band metal to a high-temperature superconductor via two thermal phase transitions (Supporting Material)
• From a single-band metal to a high-temperature superconductor via two thermal phase transitions
• Kerr effect as evidence of gyrotropic order in the cuprates
• Berry phase mechanism for optical gyrotropy in stripe-ordered cuprates
• Absence of time reversal symmetry breaking in La_{2-x}Sr_{x}CuO_{4}
• Circular dichroism in angle-resolved photoemission spectra of under- and overdoped Pb-Bi2212
• X-ray Dichroism and the Pseudogap Phase of Cuprates

Cited by in corpus (5)

• Proposed Chiral Texture of the Magnetic Moments of Unit-Cell Loop Currents in the Pseudogap Phase of Cuprate Superconductors
• Tilted loop currents in cuprate superconductors
• Disentangling X-ray dichroism and birefringence via high-purity polarimetry
• Local noncentrosymmetric structure of Bi2Sr2CaCu2O8+y by X-ray magnetic circular dichroism at Cu K-edge XANES
• Linear dichroism and the nature of charge order in underdoped cuprates