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制备了Nd3Co单晶,测量了Nd3Co单晶在温度T=1.5,4.2,12,19,77,300 K下沿各晶轴的磁化情况.由M-H变化曲线估出了在1.5 K下磁化过程中磁性转变(即磁矩变化)的大小,ΔMa1=0.22 μB,ΔMa2=0.84 μB,ΔMb=1.82 μB.在低温时,M-H曲线为回线,在高温时为直线,为了得到饱和磁矩,测得在1.5,4.2,19 K下,在磁场0~30 T的磁化情况,估出了沿各晶轴磁化的饱和磁矩值,沿a轴的分别为2.86,2.73,2.66 μB/Nd离子,沿b轴的分别为2.57,2.52,2.49和2.32 μB/Nd离子,沿c轴为2.34,2.34,2.32和2.27 μB/Nd离子.

参考文献

[1] Gignoux D;Lemaire R et al.Paccard.Etude des structures magnetiques des composes Er3Co et Er3Ni par diffraction neutronique[J].Solid State Communications,1970,8:391.
[2] Baranov N;Markin V;Kozlov A I .Effect of magnetic interphase boundaries on the electrical resistivity in metallic metamegnets[J].Journal of Alloys Compounds,1993,202:215.
[3] Gignoux D;Gomez-Sal J C;Paccard D .Magnetic properties of a Tb3Ni single crystal[J].Solid State Communications,1982,44:695.
[4] Sato K;Umehara I;Fujimori N et al.Anomalous electrical and magneti Properties in R3Co[J].Physics B,1994,199-200:651.
[5] Lu Q F;Umehara I;Adachi Y et al.Single crystal growth of R3Co (R:La,Pr,Nd) and their characterisitic transport properties[J].Materials Transactions Jim,1997,38:1.
[6] Lu Q F;Umehara I;Adachi Y et al.Magnetic properties of single crystalline Pr3Co[J].Journal of Physical of Japan,1997,66:1480.
[7] Umehara I;Lu Q F;Adachi Y et al.Multiple metamgnetic transirions of Nd3Co single crystal[J].Journal of Physical Society Japan,1998,67:4213.
[8] Adachi Y;Lu Ying;Umehara I .Neutron diffraction study of Nd3Co[J].Journal of Applied Physics,1999,85:4750.
[9] Chikazumi S.Physics of Ferromagnetism[M].Oxford,New York,USA:Charendon Press,1997:275.
[10] 路莹;李玉山;路庆凤.单晶Pr3Co的磁场随温度变化关系研究[J].低温物理学报,2006(01):90.
[11] 张丽英,薛德胜.CoO纳米颗粒的制备及磁性研究[J].稀有金属,2003(05):547-551.
[12] 侯登录,徐静,唐贵德,聂向富,姜恩永.SrRuO3的磁化率随温度的变化关系[J].稀有金属,2003(05):652-654.
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