Charge Order and Superconductivity in Underdoped YBa_{2}Cu_{3}O_{7-d} under Pressure.
Charge Order and Superconductivity in Underdoped YBa_{2}Cu_{3}O_{7-d} under Pressure.
复制标题
压力下欠掺杂 YBa_{2}Cu_{3}O_{7-d} 的电荷顺序和超导性。
DOI：
10.1103/physrevlett.120.117002
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发表时间：
2018
影响因子：
8.6
通讯作者：
Putzke C
中科院分区：
文献类型：
--
作者：
Putzke C
在欠掺杂的铜酸盐中，不相称电荷密度波（CDW）阶与超导性共存。在CDW最强的空穴掺杂水平上，CDW顺序可能抑制超导性（）。在高静水压力和高磁场条件下，通过测量霍尔系数的温度依赖性，研究了欠掺杂中电荷序与超导性的相互作用。我们发现，虽然在2.6 GPa时压力增加了10 K，但对。这表明，在这些水平上，压力仅对CDW产生微弱影响，并且压力的增加不能归因于CDW的抑制。因此，我们认为，环境压力的下降可能不是由CDW形成引起的。
In underdoped cuprates, an incommensurate charge density wave (CDW) order is known to coexist with superconductivity. A dip inat the hole doping level where the CDW is strongest () suggests that CDW order may suppress superconductivity. We investigate the interplay of charge order with superconductivity in underdopedby measuring the temperature dependence of the Hall coefficientat high magnetic field and at high hydrostatic pressure. We find that, although pressure increasesby up to 10 K at 2.6 GPa, it has very little effect on. This suggests that pressure, at these levels, only weakly affects the CDW and that the increase inwith pressure cannot be attributed to a suppression of the CDW. We argue, therefore, that the dip inatat ambient pressure is probably not caused by the CDW formation.