We investigate the control of two-body inelastic spin-exchange loss in ultracold atoms by applying an electric field to modulate magnetic Feshbach resonances. While conventional magnetic tuning can enhance or suppress two-body spin-exchange losses, the incorporation of an electric field introduces an additional degree of freedom, enabling more flexible control over resonances for different partial waves. Taking the ${}^6{\text{Li-}}^{40}\text{K}$ collision as an example, we demonstrate how this approach can be employed to control $s$- and $p$-wave inelastic loss processes and improve the suppression of the loss rate coefficient. This study may open a new possibility for the control of ultracold atomic inelastic collisions.

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• Atomic & molecular processes in external fields
• Ultracold collisions
• Zeeman effect
• Feshbach resonance