Restored strange metal phase through suppression of charge density waves in underdoped YBa$_2$Cu$_3$O$_{7-\delta}$

Autor: Wahlberg, E., Arpaia, R., Seibold, G., Rossi, M., Fumagalli, R., Trabaldo, E., Brookes, N. B., Braicovich, L., Caprara, S., Gran, U., Ghiringhelli, G., Bauch, T., Lombardi, F.
Rok vydání: 2020
Předmět:
Zdroj: Science 373, 1506-1510 (2021)
Druh dokumentu: Working Paper
DOI: 10.1126/science.abc8372
Popis: The normal state of optimally doped cuprates is dominated by the "strange metal" phase that shows a linear temperature ($T$) dependence of the resistivity persisting down to the lowest $T$. For underdoped cuprates this behavior is lost below the pseudogap temperature $T^*$, where Charge Density Waves (CDW) together with other intertwined local orders characterize the ground state. Here we show that the $T$-linear resistivity of highly strained, ultrathin and underdoped YBa$_2$Cu$_3$O$_{7-\delta}$ films is restored when the CDW amplitude, detected by Resonant Inelastic X-ray scattering, is suppressed. This observation points towards an intimate connection between the onset of CDW and the departure from $T$-linear resistivity in underdoped cuprates. Our results illustrate the potential of using strain control to manipulate the ground state of quantum materials.
Databáze: arXiv
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