Magnetic field mediated charge density wave transport in Ni doped NbSe3 nanowires

Abstract

Controllable manipulation of the transition between many-body ground states or metastable states in charge density wave (CDW) systems by external stimuli such as an electric field or optical pulse is of great interest to distinguish delicate interplay of quantum states and to design functional devices. Here, we report magnetization-induced transport anomalies in magnetic impurity Ni doped NbSe3 nanowires, which is toward suppressing the anomalous features of pristine CDW states and inducing the typical transport characteristics of disordered metallic phase accompanied by new emergent metastable CDW states or a tunneling-like transport behavior. These transport switching phenomena are ascribed to out-of-equilibrium disorder introduced by the reorientation of local charge/spin-density-wave domains, which partly retain even after switching off the magnetic field. Our observation will promote the understanding of the interaction between the CDW and the magnetic field coupled by magnetic impurities and pave a way to tune the CDW transport by magnetization, which may contribute to the development of CDW-based devices.