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Coercivity enhancement in exchange biased systems driven by interfacial magnetic frustration Leighton, C. Nogués, Josep Jönsson-Akerman, B. J. Schuller, Ivan K. American Physical Society We report the temperature and cooling field dependence of the coercivity of exchange biased MnF2/Fe bilayers. When the antiferromagnetic surface is in a state of maximum magnetic frustration and the net exchange bias is zero, we observe a strong enhancement of the coercivity, which is proportional to the exchange coupling between the layers. Hence, the coercivity can be tuned in a reproducible and repeatable fashion in the same sample. We propose that a frustrated interface provides local energy minima which effectively pin the propagating domain walls in the ferromagnet, leading to an enhanced coercivity. 2000 Article https://ddd.uab.cat/record/114614 urn:10.1103/PhysRevLett.84.3466 urn:oai:ddd.uab.cat:114614 urn:recercauab:ARE-26400 urn:articleid:10797114v84n15p3466 urn:scopus_id:0000259827 urn:wos_id:000086404500063 urn:altmetric_id:41883577 urn:oai:egreta.uab.cat:publications/832dbe97-0534-4b60-a073-a13af7af949d eng Physical review letters ; Vol. 84, Issue 15 (April 2000), p. 3466-3469 open access Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. https://rightsstatements.org/vocab/InC/1.0/ application/pdf