@article{ce9d4132b7fb45e8947caab6d739b743,
title = "Low-temperature magnetic crossover in the topological kagome magnet TbMn6Sn6",
abstract = "Magnetic topological phases of quantum matter are an emerging frontier in physics and materials science, of which kagome magnets appear as a highly promising platform. Here, we explore magnetic correlations in the recently identified topological kagome system TbMn6Sn6 using muon spin rotation, combined with local field analysis and neutron diffraction. Our studies identify an out-of-plane ferrimagnetic structure with slow magnetic fluctuations which exhibit a critical slowing down below TC1* ≃ 120 K and finally freeze into static patches with ideal out-of-plane order below TC1 ≃ 20 K. We further show that hydrostatic pressure of 2.1 GPa stabilises the static out-of-plane topological ferrimagnetic ground state in the whole volume of the sample. Therefore the exciting perspective arises of a magnetically-induced topological system whose magnetism can be controlled through external parameters. The present results will stimulate theoretical investigations to obtain a microscopic understanding of the relation between the low-temperature volume-wise magnetic evolution of the static c-axis ferrimagnetic patches and the topological electronic properties in TbMn6Sn6.",
author = "C. Mielke and Ma, {W. L.} and V. Pomjakushin and O. Zaharko and S. Sturniolo and X. Liu and V. Ukleev and White, {J. S.} and Yin, {J. X.} and Tsirkin, {S. S.} and Larsen, {C. B.} and Cochran, {T. A.} and M. Medarde and V. Por{\'e}e and D. Das and R. Gupta and Wang, {C. N.} and J. Chang and Wang, {Z. Q.} and R. Khasanov and T. Neupert and A. Amato and L. Liborio and S. Jia and Hasan, {M. Z.} and H. Luetkens and Z. Guguchia",
note = "Funding Information: The ? SR experiments were carried out at the Swiss Muon Source (S? S) Paul Scherrer Insitute, Villigen, Switzerland using the high resolution GPS instrument (? M3 beamline). The neutron diffraction experiments were performed at the Swiss spallation neutron source SINQ (HRPT and ZEBRA diffractometers), Paul Scherrer Institute, Villigen, Switzerland. The magnetization measurements were carried out on the MPMS device of the Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute, Villigen, Switzerland. Z.G. and C.M. thank Romain Sibille and Dariusz Jakub Gawryluk for their useful discussions. T. N. and S. S. T. acknowledge support from the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programm (ERC-StG-Neupert757867-PARATOP). S. S. T. and JC acknowledge support from respectively the grant No. PP00P2 176877 and 200021_188564 by the Swiss National Science Foundation. X. L. was supported by the China Scholarship Council (CSC). This work was also supported by the Swiss National Science Foundation (R?Equip grant no. 206021_139082). Z.Q.W. is supported by DOE grant No. DE-FG02-99ER45747.?L. L. and S. S. are grateful for the computational support provided by the STFC Scientific Computing Department?s SCARF cluster. Funding for this work was provided by the STFC Scientific Computing Department, the ISIS muon source, the Ada Lovelace Centre at Scientific Computing Department and by the CCP for NMR Crystallography, funded by EPSRC under Grant No. EP/T026642/1.?The work in Peking University was supported by the the National Natural Science Foundation of China numbers U1832214, 12141002 and U2032213, the National Key R&D Program of China grant number YFA0305601 and the strategic Priority Research Program of Chinese Academy of Sciences grant number XDB28000000. Funding Information: The μSR experiments were carried out at the Swiss Muon Source (SμS) Paul Scherrer Insitute, Villigen, Switzerland using the high resolution GPS instrument (πM3 beamline). The neutron diffraction experiments were performed at the Swiss spallation neutron source SINQ (HRPT and ZEBRA diffractometers), Paul Scherrer Institute, Villigen, Switzerland. The magnetization measurements were carried out on the MPMS device of the Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute, Villigen, Switzerland. Z.G. and C.M. thank Romain Sibille and Dariusz Jakub Gawryluk for their useful discussions. T. N. and S. S. T. acknowledge support from the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programm (ERC-StG-Neupert757867-PARATOP). S. S. T. and JC acknowledge support from respectively the grant No. PP00P2 176877 and 200021_188564 by the Swiss National Science Foundation. X. L. was supported by the China Scholarship Council (CSC). This work was also supported by the Swiss National Science Foundation (R{\textquoteright}Equip grant no. 206021_139082). Z.Q.W. is supported by DOE grant No. DE-FG02-99ER45747. L. L. and S. S. are grateful for the computational support provided by the STFC Scientific Computing Department{\textquoteright}s SCARF cluster. Funding for this work was provided by the STFC Scientific Computing Department, the ISIS muon source, the Ada Lovelace Centre at Scientific Computing Department and by the CCP for NMR Crystallography, funded by EPSRC under Grant No. EP/T026642/1. The work in Peking University was supported by the the National Natural Science Foundation of China numbers U1832214, 12141002 and U2032213, the National Key R&D Program of China grant number YFA0305601 and the strategic Priority Research Program of Chinese Academy of Sciences grant number XDB28000000. Publisher Copyright: {\textcopyright} 2022, The Author(s).",
year = "2022",
month = dec,
doi = "10.1038/s42005-022-00885-4",
language = "English (US)",
volume = "5",
journal = "Communications Physics",
issn = "2399-3650",
publisher = "Springer Nature",
number = "1",
}