论文标题
BA中超导和反铁磁订单的演变（fe $ _ {0.92-x} $ co $ _ {0.08} $ v $ _x $）$ _ 2 $ as 2 $ as $ _2 $
Evolution of superconductivity and antiferromagnetic order in Ba(Fe$_{0.92-x}$Co$_{0.08}$V$_x$)$_2$As$_2$
论文作者
论文摘要
在BA中研究了对铁pnictides超导的掺杂效应（Fe $ _ {0.92-x} $ co $ _ {0.08} $ v $ _x $ _x $ _ 2 $ aS $ _2 $ as $ _2 $，按运输，易感性和中子散射测量结果为$ _2 $。磁杂质V的掺杂导致以7.4〜K/1 \％V的速率减少T $ _C $的超导性快速抑制。另一方面，V掺杂时恢复了远程相称的$ C $ type抗铁磁序列。 Ba（Fe $ _ {0.92-X} $ co $ _ {0.08} $ v $ _x $）$ _ 2 $ as 2 $ as $ _2 $的有序磁矩的值在Ba（Fe $ _ {0.92-X} $ _ {0.92-X} $ co $ _ {0.08} $ _x $ _x $ _ 2 $ $ _2 $的情况下，根据$ _2 $确定了基于conderiative and conteriative and Conteriative and Conderiation，可能确定了基于conderiative and conterriative and conterriative and conterriative and conterriative and conderiative，$ _2 Ruderman-Kittel-Kasuya-Yosida之间的相互作用。
The vanadium doping effects on superconductivity and magnetism of iron pnictides are investigated in Ba(Fe$_{0.92-x}$Co$_{0.08}$V$_x$)$_2$As$_2$ by transport, susceptibility and neutron scattering measurements. The doping of magnetic impurity V causes a fast suppression of superconductivity with T$_c$ reduced at a rate of 7.4~K/1\%V. On the other hand, the long-range commensurate $C$-type antiferromagnetic order is recovered upon the V doping. The value of ordered magnetic moments of Ba(Fe$_{0.92-x}$Co$_{0.08}$V$_x$)$_2$As$_2$ follows a dome-like evolution versus doping concentration x. A possible Griffiths-type antiferromagnetic region of multiple coexisting phases in the phase diagram of Ba(Fe$_{0.92-x}$Co$_{0.08}$V$_x$)$_2$As$_2$ is identified, in accordance with previous theoretical predictions based on a cooperative behavior of the magnetic impurities and the conduction electrons mediating the Ruderman-Kittel-Kasuya-Yosida interactions between them.
