{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T06:51:12Z","timestamp":1775458272683,"version":"3.50.1"},"reference-count":12,"publisher":"AIP Publishing","issue":"20","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,5,16]]},"abstract":"<jats:p>We report on the lattice location of Mn in heavily p-type doped GaAs by means of \u03b2\u2212 emission channeling from the decay of M56n. The majority of the Mn atoms substitute for Ga and up to 31% occupy the tetrahedral interstitial site with As nearest neighbors. Contrary to the general belief, we find that interstitial Mn is immobile up to 400\u2009\u00b0C, with an activation energy for diffusion of 1.7\u20132.3 eV. Such high thermal stability of interstitial Mn has significant implications on the strategies and prospects for achieving room temperature ferromagnetism in Ga1\u2212xMnxAs.<\/jats:p>","DOI":"10.1063\/1.3592568","type":"journal-article","created":{"date-parts":[[2011,5,20]],"date-time":"2011-05-20T23:39:36Z","timestamp":1305934776000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":25,"title":["Direct identification of interstitial Mn in heavily p-type doped GaAs and evidence of its high thermal stability"],"prefix":"10.1063","volume":"98","author":[{"given":"L. M. 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R.","family":"da Silva","sequence":"additional","affiliation":[{"name":"Centro de F\u00edsica Nuclear da Universidade de Lisboa 4 , 1649-003 Lisboa, Portugal"}]},{"given":"A.","family":"Vantomme","sequence":"additional","affiliation":[{"name":"K.U.Leuven 3 Instituut voor Kern-en Stralingsfysica and INPAC, , 3001 Leuven, Belgium"}]},{"given":"J. P.","family":"Ara\u00fajo","sequence":"additional","affiliation":[{"name":"Faculdade de Ci\u00eancias da Universidade do Porto 1 Department of Physics and Astronomy, IFIMUP and IN-Institute of Nanoscience and Nanotechnology, , 4169-007 Porto, Portugal"}]}],"member":"317","published-online":{"date-parts":[[2011,5,18]]},"reference":[{"key":"2023070217483461400_c1","doi-asserted-by":"publisher","first-page":"14","DOI":"10.1016\/S1369-7021(09)70109-9","volume":"12","year":"2009","journal-title":"Mater. 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