About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
APS March Meeting 2022
Conference paper
Double resonance of two-coupled s = 1/2 electron spins on a surface using STM
Abstract
Atomic-scale control of multiple spins with individual addressability enables the bottom-up design of functional quantum devices. Tailored nanostructures can be built with atomic precision using scanning tunneling microscopes [1]. However, quantum-coherent driving was limited to a spin in the tunnel junction [2]. Here we show the ability to drive and detect the spin resonance of a remote spin using the electric field from the tip and a single-atom magnet placed nearby. The remote spin was weakly coupled to a second spin that was read out by the tunnel current and acted as a quantum sensor. We simultaneously and independently drove the sensor and remote spins by two radio frequency voltages in double resonance experiments, showing promise for multi-spin manipulation in customized spin structures on surfaces. [1] K. Yang et al. Nat. Commun. (2021); [2] K. Yang et al. Science (2019) *This work was supported by the Institute for Basic Science (IBS-R027-D1).