Temperature evolution of quasi-elastic magnetic fluctuations in LSCO
One of the greatest unsolved problems in physics is the origin of high-Tc superconductivity (SC). The magnetism in LaŹ2-xSrxCuO4 (LSCO), and similar cuprate SC, is often found as static or dynamic stripes. However, it remains important to clarify the details of these stripes to pinpoint their relation to SC. Recently, at the backscattering instruments IN16b (ILL) and DNA (JPARC), we were able to measure the development of the magnetic stripes in the quasielastic regime. This unprecedented energy resolution for stripe investigation led to the discovery of two new types of quasielastic stripe dynamics in a non-SC cuprate LSCO (x=0.05); at sub żeV and approx. 100 żeV. We will follow up on our discovery by measuring the same temperature evolution of the quasielastic stripe signal, using both IN16b and IN5, on the SC cuprate LSCO (x = 0.07). With this, we will for the first time be able to observe how static stripes convert over elastic and quasielastic to dynamic stripes in a cuprate, and to see in which way this unpinning of stripes correlates with the onset of SC. This will address one of the large open questions on stripes in SC cuprates.
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The recommended format for citing this dataset in a research publication is in the following format:
KRIGHAAR Kristine; APPEL Markus; Machteld E. Kamminga; LEFMANN Kim; OLLIVIER Jacques; Yasmine Sassa and YNILL LENANDER Emma. (2023). Temperature evolution of quasi-elastic magnetic fluctuations in LSCO. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-614
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