Magnetic Susceptibility of a Simple Charge-Density-Wave Metal

The total magnetic susceptibility of the conduction electrons is calculated for a simple metal containing a charge-density wave. A large (∼18%) anisotropy in the susceptibility is predicted for the charge-density wave model of potassium. In this case, the susceptibility is most paramagnetic when the magnetic field and charge-density wave vector, $\overrightarrow{Q}$, are parallel. The possibility of producing single-$\overrightarrow{Q}$ samples by cooling in a magnetic field is discussed.