TY - JOUR AU - Fukushima, T. AU - Sato, K. AU - Katayama-Yoshida, H. AU - Dederichs, P. H. TI - Spinodal decomposition under layer by layer growth condition and high Curie temperature quasi-one-dimensional nano-structure in dilute magnetic semiconductors JO - Japanese journal of applied physics VL - 45 SN - 0021-4922 CY - Tokyo PB - Inst. of Pure and Applied Physics M1 - PreJuSER-56059 PY - 2006 N1 - Record converted from VDB: 12.11.2012 AB - We show that spinodal decomposition under layer by layer crystal growth condition leads to characteristic quasi-one-dimensional nano-structures in dilute magnetic semiconductors (DMS). It is found that the DMS systems can form rather large clusters with highly anisotropic shape even for low concentrations. It is suggested that the blocking phenomena in the super-paramagnetism, the magnetic dipole-dipole interaction and the network of the one-dimensional structures should be considered to understand the magnetism in DMS. Based on the present simulations, we propose that the delta-doping method can be effective approach to realize high Curie temperature. KW - J (WoSType) LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000237571200022 DO - DOI:10.1143/JJAP.45.L416 UR - https://juser.fz-juelich.de/record/56059 ER -