https://scholars.lib.ntu.edu.tw/handle/123456789/323494
標題: | Percolation transition and colossal magnetoresistive effects in a complex network | 作者: | GUANG-YU GUO | 公開日期: | 2006 | 卷: | 89 | 期: | 8 | 來源出版物: | Applied Physics Letters | 摘要: | Recent experiments have shown the intrinsic topology complexity in self-organized manganites. The coexistence of short- and long-range forces and the diversity of many competing phases have challenged present electronic models based on regular lattices. The challenge is approached here by invoking the concept of small-world network, whose topology interpolates between regular lattices and random graphs. Magnetic phase transition and percolation transition in these complex networks are studied via Monte Carlo simulations and finite-size scaling analyses. The observed ramified percolative fractals, signified field-induced percolation transition, and enhanced colossal magnetoresistive effects agree with experiments well. © 2006 American Institute of Physics. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-33747868948&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/323494 |
ISSN: | 00036951 | DOI: | 10.1063/1.2338024 | SDG/關鍵字: | Fractals; Magnetoresistance; Manganese compounds; Percolation (solid state); Phase transitions; Topology; Complex network; Magnetoresistive effects; Percolation transition; Self-organized manganites; Transition metals |
顯示於: | 物理學系 |
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