Ultrafast unidirectional spin Hall magnetoresistance driven by terahertz light field.

ABSTRACT: The ultrafast control of magnetisation states in magnetically ordered systems poses significant technological challenges yet is vital for the development of memory devices that operate at picosecond timescales or terahertz (THz) frequencies. Despite considerable efforts achieving convenient ultrafast readout of magnetic states remains an area of active investigation. For practical applications, energy-efficient and cost-effective electrical detection is highly desirable. In this context, unidirectional spin-Hall magnetoresistance (USMR) has been proposed as a straightforward two-terminal geometry for the electrical detection of magnetisation states in magnetic heterostructures. In this work, we demonstrate that USMR is effective at THz frequencies, enabling picosecond time readouts initiat

SUBMITTER: Salikhov R 

PROVIDER: S-EPMC11885675 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature