首页|Evolution of Superconducting-Transition Temperature with Superfluid Density and Conductivity in Pressurized Cuprate Superconductors

Evolution of Superconducting-Transition Temperature with Superfluid Density and Conductivity in Pressurized Cuprate Superconductors

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What factors fundamentally determine the value of superconducting transition temperature Tc in high tem-perature superconductors has been the subject of intense debate.Following the establishment of an empirical law known as Homes'law,there is a growing consensus in the community that the Tc value of the cuprate supercon-ductors is closely linked to the superfluid density(ρs)of its ground state and the conductivity(σ)of its normal state.However,all the data supporting this empirical law(ρs=AσTc)have been obtained from the ambient-pressure superconductors.In this study,we present the first high-pressure results about the connection of the quantities of ρs and σ with Tc,through the studies on the Bi1.74Pb0.38Sr1.88CuO6+δ and Bi2Sr2CaCu2O8+δ,in which the value of their high-pressure resistivity(ρ=1/σ)is achieved by adopting our newly established method,while the quantity of ρs is extracted using Homes'law.We highlight that the Tc values are strongly linked to the joint response factors of magnetic field and electric field,i.e.,ρs and a,respectively,implying that the physics determining Tc is governed by the intrinsic electromagnetic fields of the system.

赵金瑜、蔡树、陈逸雯、顾根大、闫宏涛、郭静、韩金宇、王鹏玉、周亚洲、李延春、李晓东、任治安、吴奇、周兴江、丁阳、向涛、毛河光、孙力玲

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Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

University of Chinese Academy of Sciences,Beijing 100190,China

Center for High Pressure Science & Technology Advanced Research,Beijing 100094,China

Condensed Matter Physics & Materials Science Department,Brookhaven National Laboratory,NY 11973-5000,USA

Institute of High Energy Physics,Chinese Academy of Science,Beijing 100049,China

Beijing Academy of Quantum Information Sciences,Beijing 100193,China

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国家重点研发计划国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金中国科学院战略规划重点项目(B类)US Department of Energy,Office of Basic Energy Sciences

2021YFA14018002022YFA1403900U2032214121224141210448712004419XDB25000000DOE-sc0012704

2024

10.1088/0256-307X/41/4/047401

中国物理快报(英文版)
中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDEI
影响因子：0.515
ISSN：0256-307X
年,卷(期)：2024.41(4)
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