Spin and Charge Excitations in Incommensurate Spin Density Waves
Spin and Charge Excitations in Incommensurate Spin Density Waves
Dynamical longitudinal spin susceptibility χ z z ( q ,ω) and charge density susceptibility χ n n ( q ,ω) are evaluated within random phase approximation for incommensurate spin density waves, or stripes, in two dimensional Hubbard model. Taking into account all possible higher harmonics of the fundamental component of …