A scanning tunneling microscopy study of Co3Sn2S2 confirms a ~300 meV minority-spin gap and reports standing waves near step edges that the authors interpret as signatures of nontrivial surface states around 50 meV.
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Signatures for half-metallicity and nontrivial surface states in a Kagome-lattice magnetic Weyl semimetal Co$_3$Sn$_2$S$_2$
A scanning tunneling microscopy study of Co3Sn2S2 confirms a ~300 meV minority-spin gap and reports standing waves near step edges that the authors interpret as signatures of nontrivial surface states around 50 meV.