Spin Order accompanying Loop-Current Order in Cuprates

Abstract

The theory of the long range order of orbital current loops in the pseudogap phase is generalized to include the effects of spin-orbit scattering. It is shown by symmetry arguments as well as by microscopic calculation that a specific in-plane spin-order must necessarily accompany the loop-current order. The microscopic theory also allows an estimate of the magnitude of the ordered spin-moment. Exchange coupling between the generated spins further modifies the in-plane direction of the spin moments. The structure and form factor for the spin and orbital moments combined with the induced spin order is consistent with the direction of moments deduced from polarization analysis in the neutron scattering experiment.

References in corpus (2)

• Magnetic order in the pseudogap phase of high-$T_C$ superconductors
• Spin-orbit coupling induced magnetism in the $d$-density wave phase of La${}_{2-x}$Ba${}_x$CuO${}_4$ superconductors

Cited by in corpus (5)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Absence of time reversal symmetry breaking in La_{2-x}Sr_{x}CuO_{4}
• Thermodynamic Properties near the onset of Loop-Current Order in high-$T_c$ superconducting cuprates
• Nature of the enigmatic pseudogap state: novel magnetic order in superconducting HgBa2CuO4+d
• Weak Ferromagnetism Accompanying Loop current order in Underdoped Cuprates