{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T17:47:56Z","timestamp":1761155276002,"version":"3.41.2"},"reference-count":18,"publisher":"AIP Publishing","issue":"20","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2009,5,18]]},"abstract":"<jats:p>In magnetic nanoparticles, anisotropy energy has extra contributions compared to that of the bulk counterparts, being the most relevant surface anisotropy. Here we use pressure to separate core from surface anisotropy in one system of maghemite nanoparticles dispersed in a polymer. The core anisotropy is Kcore=7.7\u00d7105\u2002erg\/cm3 while the surface anisotropy is KS=4.2\u00d710\u22122\u2002erg\/cm2. This in-one-sample separation is possible due to changes in structurally ordered and disordered ratio, which induce changes in the average magnetic anisotropy energy.<\/jats:p>","DOI":"10.1063\/1.3131782","type":"journal-article","created":{"date-parts":[[2009,5,19]],"date-time":"2009-05-19T23:05:51Z","timestamp":1242774351000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":42,"title":["Surface and core magnetic anisotropy in maghemite nanoparticles determined by pressure experiments"],"prefix":"10.1063","volume":"94","author":[{"given":"Y.","family":"Komorida","sequence":"first","affiliation":[{"name":"Kyushu Institute of Technology 1 Faculty of Engineering, , Kitakyushu 804-8550, Japan"}]},{"given":"M.","family":"Mito","sequence":"additional","affiliation":[{"name":"Kyushu Institute of Technology 1 Faculty of Engineering, , Kitakyushu 804-8550, Japan"}]},{"given":"H.","family":"Deguchi","sequence":"additional","affiliation":[{"name":"Kyushu Institute of Technology 1 Faculty of Engineering, , Kitakyushu 804-8550, Japan"}]},{"given":"S.","family":"Takagi","sequence":"additional","affiliation":[{"name":"Kyushu Institute of Technology 1 Faculty of Engineering, , Kitakyushu 804-8550, Japan"}]},{"given":"A.","family":"Mill\u00e1n","sequence":"additional","affiliation":[{"name":"CSIC-Universidad de Zaragoza 2 Departamento de Fisica de la Materia Condensada, Facultad de Ciencias, Instituto de Ciencia de Materiales de Arag\u00f3n, , 50009 Zaragoza, Spain"}]},{"given":"N. J. O.","family":"Silva","sequence":"additional","affiliation":[{"name":"CSIC-Universidad de Zaragoza 2 Departamento de Fisica de la Materia Condensada, Facultad de Ciencias, Instituto de Ciencia de Materiales de Arag\u00f3n, , 50009 Zaragoza, Spain"}]},{"given":"F.","family":"Palacio","sequence":"additional","affiliation":[{"name":"CSIC-Universidad de Zaragoza 2 Departamento de Fisica de la Materia Condensada, Facultad de Ciencias, Instituto de Ciencia de Materiales de Arag\u00f3n, , 50009 Zaragoza, Spain"}]}],"member":"317","published-online":{"date-parts":[[2009,5,19]]},"reference":[{"volume-title":"Advances in Chemical Physics","year":"1997","key":"2023062205350347200_c1"},{"key":"2023062205350347200_c2","doi-asserted-by":"publisher","first-page":"094409","DOI":"10.1103\/PhysRevB.65.094409","volume":"65","year":"2002","journal-title":"Phys. Rev. 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