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Fluctuating magnetism of Co- and Cu-doped NaFeAs

Autor: Kenji Ishii, L. Y. Xing, Xiancheng Wang, Thorsten Schmitt, Changqing Jin, Jonathan Pelliciari

We report an x-ray emission spectroscopy (XES) study of the local fluctuating magnetic moment ($\mu_{bare}$) in $\mathrm{NaFe_{1-x}Co_{x}As}$ and $\mathrm{NaFe_{1-x}Cu_{x}As}$. In NaFeAs, the reduced height of the As ions induces a local magnetic mom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a82a269d71bc80b26c7545d2f9b6c8f1
http://arxiv.org/abs/2103.13161

Spin-Fluctuation-Induced Non-Fermi-Liquid Behavior with Suppressed Superconductivity in LiFe_{1−x}Co_{x}As

Autor: Y. M. Dai, H. Miao, L. Y. Xing, X. C. Wang, P. S. Wang, H. Xiao, T. Qian, P. Richard, X. G. Qiu, W. Yu, C. Q. Jin, Z. Wang, P. D. Johnson, C. C. Homes, H. Ding

Publikováno v: Physical Review X, Vol 5, Iss 3, p 031035 (2015)

We study a series of LiFe_{1−x}Co_{x}As compounds with different Co concentrations by transport, optical spectroscopy, angle-resolved photoemission spectroscopy, and nuclear magnetic resonance. We observe a Fermi-liquid to non-Fermi-liquid to Fermi

Externí odkaz: https://doaj.org/article/9fdc8a044cce4f2f814b1d2589be350b

Quantum Phase Transition of Correlated Iron-Based Superconductivity in LiFe1-xCoxAs

Autor: Jiaxin Yin, M. Zahid Hasan, Feng-Chuan Chuang, Daniel Multer, Zijia Cheng, Gennevieve Macam, Guangyang Dai, Maksim Litskevich, Brian M. Andersen, Xian Yang, Songtian S. Zhang, Andreas Kreisel, Guoqing Chang, Xiancheng Wang, Changqing Jin, Hsin Lin, Ziqiang Wang, Zhi Quan Huang, Johannes H. J. Martiny, Xianxin Wu, Hu Miao, Ilya Belopolski, Yi Gao, Yunkyu Bang, Tyler A. Cochran, Nana Shumiya, Yuanyuan Zhao, L. Y. Xing

Publikováno v: Yin, J-X, Zhang, S S, Dai, G, Zhao, Y, Kreisel, A, Macam, G, Wu, X, Miao, H, Huang, Z-Q, Martiny, J H J, Andersen, B M, Shumiya, N, Multer, D, Litskevich, M, Cheng, Z, Yang, X, Cochran, T A, Chang, G, Belopolski, I, Xing, L, Wang, X, Gao, Y, Chuang, F-C, Lin, H, Wang, Z, Jin, C, Bang, Y & Hasan, M Z 2019, ' Quantum Phase Transition of Correlated Iron-Based Superconductivity in LiFe 1-x Co x As ', Physical Review Letters, vol. 123, no. 21, 217004 . https://doi.org/10.1103/PhysRevLett.123.217004
Yin, J X, Zhang, S S, Dai, G, Zhao, Y, Kreisel, A, Macam, G, Wu, X, Miao, H, Huang, Z Q, Martiny, J H J, Andersen, B M, Shumiya, N, Multer, D, Litskevich, M, Cheng, Z, Yang, X, Cochran, T A, Chang, G, Belopolski, I, Xing, L, Wang, X, Gao, Y, Chuang, F C, Lin, H, Wang, Z, Jin, C, Bang, Y & Hasan, M Z 2019, ' Quantum Phase Transition of Correlated Iron-Based Superconductivity in LiFe 1-x Co x As ', Physical Review Letters, vol. 123, no. 21, 217004 . https://doi.org/10.1103/physrevlett.123.217004

The interplay between unconventional Cooper pairing and quantum states associated with atomic scale defects is a frontier of research with many open questions. So far, only a few of the high-temperature superconductors allow this intricate physics to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02cdb4a8383c0e4dd9876571f00356f1
https://curis.ku.dk/ws/files/247117030/PhysRevLett.123.217004.pdf

Electron Mass Enhancement near a Nematic Quantum Critical Point in NaFe1−xCoxAs

Autor: R. Zhou, Zuohu Li, Guangyang Dai, Chong Wang, J.C. Yang, L. Y. Xing, Xiuxia Wang, Guo-Qing Zheng, Chiming Jin

Publikováno v: Physical Review Letters. 121

A magnetic order can be completely suppressed at zero temperature (T), by doping carriers or applying pressure, at a quantum critical point, around which physical properties change drastically. However, the situation is unclear for an electronic nema

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::82f7ce32725d4167d4c1a9fc4caebf3b
https://doi.org/10.1103/physrevlett.121.167004