ITP OpenIR  > SCI期刊论文
Zhang, Xu; Yu, Heshan2; Chen, Qihong; Yang, Runqiu3,4,5; He, Ge; Lin, Ziquan; Li, Qian; Yuan, Jie7; Zhu, Beiyi; Li, Liang; Yang, Yi-feng; Xiang, Tao; Cai, Rong-Gen; Kusmartseva, Anna; Kusmartsev, F., V; Wang, Jun-Feng; Jin, Kui1,7
Quantum criticality tuned by magnetic field in optimally electron-doped cuprate thin films
Source PublicationPHYSICAL REVIEW B
Language英语
KeywordORDER SUPERCONDUCTIVITY FLUCTUATIONS TRANSITION
AbstractAntiferromagnetic (AF) spin fluctuations are commonly believed to play a key role in electron pairing of cuprate superconductors. In electron-doped cuprates, a paradox still exists about the interplay among different electronic states in quantum perturbations, especially between superconducting and magnetic states. Here, we report a systematic transport study of cation-optimized La2-xCexCuO4 +/-delta (x = 0.10) thin films in high magnetic fields. We find an AF quantum phase transition near 60 T, where the Hall number jumps from n(H) = -x to n(H) = 1 - x, resembling the change in n(H) at the AF boundary (x(AF) = 0.14) tuned by Ce doping. In the AF region a spin-dependent state manifesting anomalous positive magnetoresistance is observed, which is closely related to superconductivity. Once the AF state is suppressed by magnetic field, a polarized ferromagnetic state is predicted, reminiscent of the recently reported ferromagnetic state at the quantum end point of the superconducting dome by Ce doping. The magnetic field that drives phase transitions in a manner similar to but distinct from doping thereby provides a unique perspective to understand the quantum criticality of electron-doped cuprates.
2021
ISSN2469-9950
Volume103Issue:1Pages:14517
Cooperation Status国际
Subject AreaMaterials Science ; Physics
MOST Discipline CatalogueMaterials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
DOI10.1103/PhysRevB.103.014517
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27453
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
3.Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA
4.Korea Inst Adv Study, Quantum Universe Ctr, Seoul 130722, South Korea
5.Tianjin Univ, Ctr Joint Quantum Studies, Sch Sci, Yaguan Rd 135, Tianjin 300350, Peoples R China
6.Tianjin Univ, Dept Phys, Sch Sci, Yaguan Rd 135, Tianjin 300350, Peoples R China
7.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
8.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
9.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
10.Loughborough Univ, Dept Phys, Loughborough LE11 3TU, Leics, England
11.Khalifa Univ, Coll Art & Sci, POB 127788, Abu Dhabi, U Arab Emirates
Recommended Citation
GB/T 7714
Zhang, Xu,Yu, Heshan,Chen, Qihong,et al. Quantum criticality tuned by magnetic field in optimally electron-doped cuprate thin films[J]. PHYSICAL REVIEW B,2021,103(1):14517.
APA Zhang, Xu.,Yu, Heshan.,Chen, Qihong.,Yang, Runqiu.,He, Ge.,...&Jin, Kui.(2021).Quantum criticality tuned by magnetic field in optimally electron-doped cuprate thin films.PHYSICAL REVIEW B,103(1),14517.
MLA Zhang, Xu,et al."Quantum criticality tuned by magnetic field in optimally electron-doped cuprate thin films".PHYSICAL REVIEW B 103.1(2021):14517.
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