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Publication details
Hengdi Zhao et al, Evolution from topological Dirac metal to flat-band-induced antiferromagnet in layered KxNi4S2 (0 ¡Ü x ¡Ü 1), Matter (2026). DOI: 10.1016/j.matt.2025.102418
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\title{K$_x$Ni$_4$S$_2$ÖеÒÀ­¿Ë×¶ÓëÆ½´ø¿ÉÄæÇл»µÄžÅ×ÓÀíÂÛ½âÊÍ}
\author{ºÂÁÖ \\ ¶ÀÁ¢Ñ§Õß}
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\begin{abstract}
ÃÀ¹ú°¢¹±¹ú¼ÒʵÑéÊÒÔÚ²ã×´²ÄÁÏK$_x$Ni$_4$S$_2$£¨$0\le x\le1$£©Öз¢ÏÖ£ºÍ¨¹ýÊ©¼ÓµçÁ÷¿ÉÄæµØµ÷½Ú¼Øº¬Á¿£¬²ÄÁÏ¿ÉÔÚµÒÀ­¿Ë×¶£¨µç×Ó¸ßËÙÔ˶¯£©ºÍƽ´ø£¨µç×ÓµÍËÙÔ˶¯£©Á½ÖÖÁ¿×Ó̬֮¼äÇл»¡£±¾ÎÄ»ùÓÚžÅ×ÓÀíÂ۵ĵݹéǶÌ×Ô­ÀíÓë»Æ½ð±ÈÀý×îÓÅÐÔ£¬¶Ô´ËÏÖÏóÌá³öȫнâÊÍ¡£K$_x$Ni$_4$S$_2$ÓÉNi$_4$S$_2$²ã£¨NiÔ­×ÓÐγɷäÎÑ×´ÍøÂ磩Óë¼Ø²å²ã½»Ìæ¶Ñµþ¡£¼Øº¬Á¿µÄ±ä»¯µÈ¼ÛÓڸıä²ã¼äÓÐЧ¾àÀë$d$£¬½ø¶øµ÷ÖÆÏàÁÚNi$_4$S$_2$²ãµÄµÝ¹éñîºÏÇ¿¶È$\gamma_{\perp} = \gamma_0 \GoldenRatio^{-|k-j|}$¡£µ±¼ØÍêÈ«²å²ã£¨$x=1$£©Ê±£¬²ã¼ä¾à$d_1$ʹñîºÏ´¦ÓÚÁÙ½çÖµ£¬ÏµÍ³±íÏÖΪµÒÀ­¿Ë×¶£¨×¼Á£×ÓÓÐЧÖÊÁ¿Ç÷½üÓÚÁ㣩£»µ±¼Ø±»ÒƳý£¨$x\to0$£©Ê±£¬²ã¼ä¾à¼õСÖÁ$d_0$£¬ñîºÏÔöÇ¿ÖÁ$\gamma_{\perp} > \gamma_c$£¬´¥·¢µÝ¹é²ã¼äÏàÎ»Ëø¶¨£¬´ò¿ªÄÜ϶²¢ÐÎ³ÉÆ½´ø£¨µç×ÓÓÐЧÖÊÁ¿Ôö´ó£©¡£ÀíÂÛÔ¤ÑÔ£ºÁÙ½ç¼Øº¬Á¿$x_c$Âú×ã$\GoldenRatio^{-|k-j|} = \gamma_c/\gamma_0$£¬ÓëʵÑé¹Û²âµÄÁ¬Ðø¿Éµ÷ÐÔÒ»Ö¡£¸Ã»úÖÆÎªÉè¼Æ¿ÉÇл»Á¿×Ó̬²ÄÁÏÌṩÁ˵ݹ鼸ºÎÅоݡ£
\end{abstract}

\tableofcontents

\section{ÒýÑÔ}

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H_0 = v_F \boldsymbol{\sigma}\cdot\mathbf{k},
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\section*{ÖÂл}
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\begin{thebibliography}{99}
\bibitem{Zhao2026} Zhao, H., et al. (2026). Evolution from topological Dirac metal to flat-band-induced antiferromagnet in layered K$_x$Ni$_4$S$_2$ ($0\le x\le1$). \textit{Matter}, DOI: 10.1016/j.matt.2025.102418.
\bibitem{HaoLin1} ºÂÁÖ. (2026). ÓîÖæµÄÊýѧ±¾ÖÊ£¨1£©¡ª¡ªÊýÔñÔ­ÀíÓëžÅ×Ó»ù´¡ÀíÂÛ. ¹¤×÷ÂÛÎÄ.
\bibitem{HaoLin2} ºÂÁÖ. (2026). ÓîÖæµÄÊýѧ±¾ÖÊ£¨2£©¡ª¡ªÎïÖÊÊÀ½çµÄÎå¼¶½á¹¹Æ×ϵ. ¹¤×÷ÂÛÎÄ.
\bibitem{HaoLin4} ºÂÁÖ. (2026). ÓîÖæµÄÊýѧ±¾ÖÊ£¨4£©¡ª¡ªµÝ¹éǶÌ×¶¯Á¦Ñ§. ¹¤×÷ÂÛÎÄ.
\bibitem{PeriodicTable} ºÂÁÖ. (2026). ÔªËØÖÜÆÚ±íµÄÊýѧ±¾ÖÊ£¨µÚ5.7°æ£©. ¹¤×÷ÂÛÎÄ.
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\end{thebibliography}

\end{document}
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