Abstract Magnetic and transport properties of La0.5Ca0.5MnO3 have been investigated by measuring the magnetization and resistance in zero-field-cooled (ZFC) and field-cooled (FC) modes. Conspicuously irreversible behaviors of magnetization/resistance in the two different modes were observed below the charge ordering transition temperature (TCO). The ZFC and FC magnetizations at 5K, as functions of the magnetic field, coincide for $\mu$0H≤1T. Afterwards, the ZFC magnetization tends to an approximate constant, but the FC one increases linearly with increasing field. There exists an excellent correspondence between magnetization and resistance below TCO. All the results suggest that the ferromagnetic clusters embed in the charge-ordered matrix. The phenomenon of ferromagnetic clusters growing up easily in the FC procedure has been interpreted according to the model of thermally activated two-level system.
Received: 13 March 2000
Accepted manuscript online:
PACS:
75.30.Kz
(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
(Magnetization curves, hysteresis, Barkhausen and related effects)
Fund: Project supported by the National Natural Science Foundation of China and State Key Project of Fundamental Research of China (Grant No. G1998061305)
Cite this article:
Li Run-wei (李润伟), Sun Ji-rong (孙继荣), Wang Zhi-hong (王志宏), Chen Xin (陈新), Zhang Shao-ying (张绍英), Shen Bao-gen (沈保根) ENHANCEMENT OF FERROMAGNETIC CLUSTER INDUCED BY MAGNETIC FIELD IN THE PHASE-SEPARATED La0.5Ca0.5MnO3 2000 Chinese Physics 9 630
Curvature-induced lipid segregation Zheng Bin (郑斌), Meng Qing-Tian (孟庆田), Robin L. B. Selinger, Jonathan V. Selinger, Ye Fang-Fu (叶方富). Chin. Phys. B, 2015, 24(6): 068701.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
