Chiral charge order in the superconductor 2H-TaS2

Chiral charge order in the superconductor 2H-TaS2
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DOI:
10.1088/1367-2630/13/10/103020
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发表时间:
2011-10-17
影响因子:
3.3
通讯作者:
Coronado, E.
Coronado, E.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Guillamon, I.;Suderow, H.;Coronado, E.

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我们在0.1K下用扫描隧道显微镜和光谱观察了2 H-TaS_2超导体中的手征电荷有序。形貌图显示了六角原子晶格和电荷密度波(CDW),具有顺时针和逆时针电荷调制。超导谱显示了超导态密度,在Tc = 1.75K时消失,并显示出以Delta = 0.28 meV为中心的超导能隙值的宽分布。
We observed chiral charge order in the superconductor 2H-TaS2 using scanning tunneling microscopy and spectroscopy at 0.1 K. Topographic images show hexagonal atomic lattice and charge density wave (CDW) with clockwise and counterclockwise charge modulations. Tunneling spectroscopy reveals the superconducting density of states, disappearing at T-c = 1.75K and showing a wide distribution of values of the superconducting gap, centered around Delta = 0.28 meV.