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ÎÄÕ嵀 FIG. 2 (c) µÄ inset ˜Ëʾ, ÔÚfermi level ®aÉú band crossingµÄÄǃɗlbandµÄparity ½ÔžéØ“, ºÎÒÔ Effective HamiltonianµÄÄÇ‚€section …sÒÔÒ»—lparityžéÕý  Ò»—lparityžéØ“µÄ bands È¥½¨Á¢ Effective Hamiltonian?KÇó½âcrossing pointµÄλÖÃÄØ?

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