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Topological Nodal Line Semimetals in CaP3 family of materials
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We propose that CaP3 family of materials, which include CaP3, CaAs3, SrP3, SrAs3 and BaAs3 can host a three-dimensional topological nodal line semimetal states. Based on first-principle calculations and kp model analysis, we show that a closed topological nodal line exists near the Fermi energy, which is protected by the coexistence of time-reversal and spatial inversion symmetry when the band inversion happens. A drumhead-like surface states are also obtained on the c-direction surface of these materials.
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Cited by 1 Pith paper
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The Dirac nodal line network in non-symmorphic rutile semimetal RuO$_2$
Micro-ARPES resolves two predicted Dirac nodal lines in RuO2 and reveals a third band crossing along XR that anchors a flat-band surface state.
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