{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T15:51:47Z","timestamp":1774453907543,"version":"3.50.1"},"reference-count":32,"publisher":"AIP Publishing","issue":"8","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2010,8,1]]},"abstract":"<jats:p>The temperature (4.5\u2013550K) and angular (in the film plane) dependences of the coercivity field for physically nonpercolated nanogranular (CoFeB)x\u2013(SiO2)1\u2212x films with an oriented intraplane granule anisotropy have some unusual properties compared to those owing to blocking of thermally activated reorientation of the magnetic moments of the granules. At temperatures above the blocking temperature Tb\u2248350\u2013370K, the dependence of the coercivity on the measurement duration is weak compared to that below Tb. Its angular (in the film plane) dependence differs qualitatively from that expected with blocking of superparamagnetic particles. This behavior is explained by the appearance of superferromagnetic ordering of the granule magnetic moments at T&amp;gt;Tb owing to interactions among them. As the temperature is reduced below 100K, the coercive field Hc for magnetization in the easy direction increases significantly more than expected for a blocked superparamagnetic ensemble. Here Hc\u22600 for magnetization along the hard direction in the plane. The angular (in-plane) dependence of Hc acquires two maxima, along the easy and hard (in-plane) directions. This phenomenon is explained by the appearance of superspin-glass correlations in the mutual orientations of the granule magnetic moments of the ensemble.<\/jats:p>","DOI":"10.1063\/1.3490833","type":"journal-article","created":{"date-parts":[[2010,11,23]],"date-time":"2010-11-23T23:34:27Z","timestamp":1290555267000},"page":"682-692","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":14,"title":["Intergranular interactions in nanogranular (CoFeB)x\u2013(SiO2)1\u2212x films with temperature and angular variations in coercivity"],"prefix":"10.1063","volume":"36","author":[{"given":"S. M.","family":"Ryabchenko","sequence":"first","affiliation":[{"name":"National Academy of Sciences of Ukraine Institute of Physics, , pr. Nauki, 46, Kiev 03028, Ukraine"}]},{"given":"A. A.","family":"Timopheev","sequence":"additional","affiliation":[{"name":"National Academy of Sciences of Ukraine Institute of Physics, , pr. Nauki, 46, Kiev 03028, Ukraine"}]},{"given":"V. M.","family":"Kalita","sequence":"additional","affiliation":[{"name":"National Academy of Sciences of Ukraine Institute of Physics, , pr. Nauki, 46, Kiev 03028, Ukraine"}]},{"given":"A. F.","family":"Lozenko","sequence":"additional","affiliation":[{"name":"National Academy of Sciences of Ukraine Institute of Physics, , pr. Nauki, 46, Kiev 03028, Ukraine"}]},{"given":"P. A.","family":"Trotsenko","sequence":"additional","affiliation":[{"name":"National Academy of Sciences of Ukraine Institute of Physics, , pr. Nauki, 46, Kiev 03028, Ukraine"}]},{"given":"V. A.","family":"Stephanovich","sequence":"additional","affiliation":[{"name":"Opole University Institute of Mathematics and Informatics, , Oleska 48, 45-052 Opole, Poland"}]},{"given":"M.","family":"Munakata","sequence":"additional","affiliation":[{"name":"Sojo University Energy Electronics Laboratory, , 860-0082 Japan"}]}],"member":"317","published-online":{"date-parts":[[2010,11,23]]},"reference":[{"key":"2023070519240196900_c1","doi-asserted-by":"publisher","first-page":"3430","DOI":"10.1109\/20.800547","volume":"35","year":"1999","journal-title":"IEEE Trans. Magn."},{"key":"2023070519240196900_c2","doi-asserted-by":"publisher","first-page":"208","DOI":"10.1016\/j.jmmm.2006.02.143","volume":"304","year":"2006","journal-title":"J. Magn. Magn. Mater."},{"key":"2023070519240196900_c3","doi-asserted-by":"crossref","first-page":"388","DOI":"10.3379\/tmjpn2001.2.388","volume":"2","year":"2002","journal-title":"Trans. Magn. Soc. 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