Muon Spin Relaxation and fluctuating magnetism in the pseudogap phase of YBa$_{2}$Cu$_{3}$O$_{y}$

التفاصيل البيبلوغرافية
العنوان: Muon Spin Relaxation and fluctuating magnetism in the pseudogap phase of YBa$_{2}$Cu$_{3}$O$_{y}$
المؤلفون: Zhu, Zihao, Zhang, Jian, Ding, Zhaofeng, Tan, Cheng, Chen, Changsheng, Wu, Qiong, Yang, Yanxing, Bernal, Oscar O., Ho, Pei-Chun, Morris, Gerald D., Koda, Akihiro, Hillier, Adrian D., Cottrell, Stephen P., Baker, Peter J., Biswas, Pabitra K., Qian, Jun, Yao, Xin, MacLaughlin, Douglas E., Shu, Lei
المصدر: Phys. Rev. B 103, 134426 (2021)
سنة النشر: 2020
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity
الوصف: We report results of a muon spin relaxation study of slow magnetic fluctuations in the pseudogap phase of underdoped single-crystalline YBa$_{2}$Cu$_{3}$O$_{y}$, $y = 6.77$ and 6.83. The dependence of the dynamic muon spin relaxation rate on applied magnetic field yields the rms magnitude~$B\mathrm{_{loc}^{rms}}$ and correlation time~$\tau_c$ of fluctuating local fields at muon sites. The observed relaxation rates do not decrease with decreasing temperature~$T$ below the pseudogap onset at $T^\ast$, as would be expected for a conventional magnetic transition; both $B\mathrm{_{loc}^{rms}}$ and $\tau_c$ are roughly constant in the pseudogap phase down to the superconducting transition. Corresponding NMR relaxation rates are estimated to be too small to be observable. Our results put strong constraints on theories of the anomalous pseudogap magnetism in YBa$_{2}$Cu$_{3}$O$_{y}$.
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevB.103.134426
URL الوصول: http://arxiv.org/abs/2008.00145
رقم الانضمام: edsarx.2008.00145
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevB.103.134426