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首页> 外文期刊>Journal of the Physical Society of Japan >Weak Ferromagnetism and Multiple Metamagnetic Transitions in the Non-centrosymmetric Tetragonal Compound CePdSi3
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Weak Ferromagnetism and Multiple Metamagnetic Transitions in the Non-centrosymmetric Tetragonal Compound CePdSi3

机译：非中心对称四方化合物CePdSi3中的弱铁磁性和多个亚磁跃迁

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摘要

We have succeeded in growing single crystalline samples of CePdSi3 with the BaNiSn3-type non-centrosymmetric structure. Specific heat, magnetic susceptibility, and magnetization measurements were carried out, which revealed three successive magnetic transitions at T-I = 4.85(5) K, T-II = 2.78(5) K, and T-III = 2.30(5) K at zero field. Below T-II, a weak ferromagnetic component was observed, indicating a canted antiferromagnetic ground state in CePdSi3. The observed large magnetic anisotropy in CePdSi3 was explained in terms of a simple crystalline-electric-field model. From the magnetization measurements, we identified five (three) magnetic states in the H-T phase diagrams for the H vertical bar vertical bar [100] ([001]) direction. Interestingly, only three magnetization steps were observed for H vertical bar vertical bar [110], suggesting the existence of the in-plane magnetic anisotropy in CePdSi3. We discuss a possible nature of the complex magnetic properties of CePdSi3.
机译：我们已经成功地生长了具有BaNiSn3型非中心对称结构的CePdSi3单晶样品。进行了比热，磁化率和磁化强度测量，发现在零时TI = 4.85（5）K，T-II = 2.78（5）K和T-III = 2.30（5）K处三个连续的磁跃迁领域。在T-II以下，观察到弱的铁磁成分，表明CePdSi3中反铁磁基态倾斜。用简单的晶体电场模型解释了CePdSi3中观察到的大磁各向异性。通过磁化测量，我们在H-T相图中确定了H（垂直）竖线[100]（[001]）方向的五（三）种磁性状态。有趣的是，对于H垂直棒垂直棒[110]，仅观察到三个磁化步骤，这表明CePdSi3中存在面内磁各向异性。我们讨论了CePdSi3复合磁性能的可能性质。

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