SECURITY FEATURE AND USE THEREOF, VALUE DOCUMENT AND PROCESS FOR VERIFYING THE AUTHENTICITY THEREOF

摘要

The invention relates to a security feature for securing value documents, comprising particles that are composed of at least two different, spatially separated solid homogeneous phases, each of which can be detected and identified in a spatially resolved manner by means of a spatially resolving analytical process which is suitable for resolving all the way to the single particle level.