Hidden magnetism uncovered in a charge ordered bilayer kagome material ScV6Sn6

Guguchia，Z.1; Gawryluk，D. J.2; Shin，S.2; Hao，Z.3; Mielke，C.1,4; Das，D.1; Plokhikh，I.2; Liborio，L.5; Shenton，J. Kane5; Hu，Y.6; Sazgari，V.1; Medarde，M.7; Deng，H.3; Cai，Y.8; Chen，C.8; Jiang，Y.9; Amato，A.1; Shi，M.6; Hasan，M. Z.9,10,11; Yin，J. X.3; Khasanov，R.1; Pomjakushina，E.2; Luetkens，H.1

2023-12-01

10.1038/s41467-023-43503-9

Nature Communications   影响因子和分区

2041-1723

Charge ordered kagome lattices have been demonstrated to be intriguing platforms for studying the intertwining of topology, correlation, and magnetism. The recently discovered charge ordered kagome material ScVSn does not feature a magnetic groundstate or excitations, thus it is often regarded as a conventional paramagnet. Here, using advanced muon-spin rotation spectroscopy, we uncover an unexpected hidden magnetism of the charge order. We observe an enhancement of the internal field width sensed by the muon ensemble, which takes place within the charge ordered state. More importantly, the muon spin relaxation rate below the charge ordering temperature is substantially enhanced by applying an external magnetic field. Taken together with the hidden magnetism found in AVSb (A = K, Rb, Cs) and FeGe kagome systems, our results suggest ubiqitous time-reversal symmetry-breaking in charge ordered kagome lattices.

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2-s2.0-85178178944

Scopus

1.Laboratory for Muon Spin Spectroscopy,Paul Scherrer Institute,Villigen,CH-5232,Switzerland
2.Laboratory for Multiscale Materials Experiments,Paul Scherrer Institut,Villigen,5232,Switzerland
3.Department of Physics,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.Physik-Institut,Universität Zürich,Zürich,Winterthurerstrasse 190,CH-8057,Switzerland
5.Scientific Computing Department,Science & Technology Facilities Council,Rutherford Appleton Laboratory,Didcot,OX11 0QX,United Kingdom
6.Photon Science Division,Paul Scherrer Institut,Villigen,CH-5232,Switzerland
7.Laboratory for Multiscale Materials Experiments,Paul Scherrer Institut,Villigen,CH-5232,Switzerland
8.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
9.Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7),Department of Physics,Princeton University,Princeton,08544,United States
10.Princeton Institute for the Science and Technology of Materials,Princeton University,Princeton,08540,United States
11.Quantum Science Center,Oak Ridge,37831,United States

Guguchia，Z.,Gawryluk，D. J.,Shin，S.,et al. Hidden magnetism uncovered in a charge ordered bilayer kagome material ScV6Sn6[J]. Nature Communications,2023,14(1).

Guguchia，Z..,Gawryluk，D. J..,Shin，S..,Hao，Z..,Mielke，C..,...&Luetkens，H..(2023).Hidden magnetism uncovered in a charge ordered bilayer kagome material ScV6Sn6.Nature Communications,14(1).

Guguchia，Z.,et al."Hidden magnetism uncovered in a charge ordered bilayer kagome material ScV6Sn6".Nature Communications 14.1(2023).