# The Russia (Sanctions) (EU Exit) Regulations 2019, Paragraph 7


Advanced materials as follows—
(a) materials for cloaking or adaptive camouflage;
(b) metamaterials, e.g. with a negative refractive index;
(c) high entropy alloys (HEA);
(d) Heusler compounds;
(e) Kitaev materials, including kitaev spin liquids.

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Source: https://www.legislation.gov.uk/uksi/2019/855/schedule/2A/paragraph/7 (the official version)
Page: https://openlegislation.uk/russia-sanctions-eu-exit-regulations-2019/schedule-2A/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.