First- and second-order magnetic and structural transitions in BaFe2(1−x)Co2xAs2

First- and second-order magnetic and structural transitions in BaFe2(1−x)Co2xAs2
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BaFe2(1−x)Co2xAs2 中的一阶和二阶磁和结构转变

DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
R. Birgeneau
R. Birgeneau
中科院分区:
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文献类型:
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作者:
C. Rotundu;R. Birgeneau

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tr = 0.022,并揭示了与结构转变在x s = 0.0064处开始相关的热容异常的出现。我们表明,外推的Tc开始掺杂可以接近磁三临界点XM。
tr ≈ 0.022 and reveal the emergence of the heat-capacity anomaly associated with the onset of the structural transition at x s ≈ 0.0064. We show that the extrapolated Tc onset doping could be close to the magnetic tricritical point x m .