Orbital magnetism in two-leg ladder cuprate
We discovered the existence of a new kind of short-range magnetism in the two-leg ladder (Sr,Ca)14Cu24O41 family of cuprates [1]. Observed for the Ca contents x = 5 and 8, this magnetism develops within the two-leg ladders and exhibits increasing correlations with increasing hole-doping. Its magnetic scattering further displays a very specific momentum dependence, the hallmark of a theoretically predicted loop current magnetism in such a material [2, 3]. Our discovery brings a novel insight onto the nature of the magnetic properties of hole-doped two-leg ladder cuprates and suggests that a loop current phase could act as a precursor to the long range magnetic order state at larger Ca content. We propose to investigate the existence of possible magnetic fluctuations related to the LCs like phase for the x=8 and 12 Ca-doped samples using polarized neutrons To this aim, we ask for 13 days on IN22 equipped with CRYOPAD.
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The recommended format for citing this dataset in a research publication is in the following format:
BOUNOUA Dalila; BOURDAROT Frederic; Bourges; MANGIN-THRO Lucile and SIDIS Yvan. (2021). Orbital magnetism in two-leg ladder cuprate. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-05-830
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