@article{3e07af3b489547798502f75e5819565a,
title = "Element-specific soft x-ray spectroscopy, scattering, and imaging studies of the skyrmion-hosting compound Co8Zn8Mn4",
abstract = "A room-temperature skyrmion-hosting compound Co8Zn8Mn4 has been examined by means of soft x-ray absorption spectroscopy, resonant small-angle scattering, and extended reference holography. An element-selective study was performed by exciting the 2p-to-3d transitions near Co and Mn L2,3 absorption edges. By utilizing the coherence of soft x-ray beams the element-specific real-space distribution of local magnetization at different temperatures has been reconstructed using iterative phase retrieval and holography with extended reference. It was shown that the magnetic moments of Co and Mn are ferromagnetically coupled and exhibit similar magnetic patterns. Both imaging methods provide a real-space resolution of 30 nm and allowed us to record a magnetic texture in the temperature range between T=20 K and T=120 K, demonstrating the elongation of the skyrmions along the principal crystallographic axes at low temperatures. Micromagnetic simulations have shown that such deformation is driven by a decreasing ratio of symmetric exchange interaction to antisymmetric Dzyaloshinskii-Moriya interaction in the system and effect of the cubic anisotropy.",
author = "V. Ukleev and Y. Yamasaki and D. Morikawa and K. Karube and K. Shibata and Y. Tokunaga and Y. Okamura and K. Amemiya and M. Valvidares and H. Nakao and Y. Taguchi and Y. Tokura and T. Arima",
note = "Funding Information: The authors wish to acknowledge P. Gargiani and BOREAS beamline staff for the technical assistance. We also thank T. Honda for providing the membranes. Soft x-ray scattering experiments were performed as a part of the proposals No. 2015S2-007 (Photon Factory) and No. 2016081774 (ALBA Synchrotron Light Laboratory). This research was supported in part by PRESTO Grant No. JPMJPR177A from Japan Science and Technology Agency (JST), “Materials research by Information Integration” Initiative () project of the Support Program for Starting Up Innovation Hub from JST, the Japan Society for the Promotion of Science through the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST Program), and JSPS KAKENHI Grant No. 16H05990. V.U. acknowledges funding from the SNF Sinergia CRSII5-171003 NanoSkyrmionics. M.V. acknowledges additional funding to the MARES endstation by Grants MICINN ICTS-2009-02, FIS2013-45469-C4-3-R, and FIS2016- 78591-C3-2-R (AEI/FEDER, UE). Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = apr,
day = "10",
doi = "10.1103/PhysRevB.99.144408",
language = "English",
volume = "99",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "14",
}