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您的检索式：作者名="Kioussis Nicholas"
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| 1 | KH_2PO_4中电子或空穴辅助下的氢缺陷反应显示文摘研究了非线性光学晶体材料KH2 PO4(KDP)中不同带电状态的H缺陷的稳定性及其反应 .从而以清晰的物理图像描绘了KDP材料暴露在强紫外线或X射线下性能下降的原因 .研究发现 ,对于H间隙原子 ,当增加一个电子时 ,H间隙原子与主H原子发生作用 ,形成间隙H2 分子并产生一个H空位 ,而增加一个空穴时H间隙原子与临近的主O原子形成氢氧键 ,这两种带电态的H间隙原子均切断KDP材料中形成网络的氢键 ;对于H空位 ,增加一个空穴将导致形成“过氧化氢”桥结构 . | 刘长松 Kioussis Nicholas | 2004 | 物理2004，33，1： | 2 |
| 2 | Glide symmetry protected higher-order topological insulators from semimetals with butterfly-like nodal lines显示文摘Most topological insulators(TIs)discovered today in spinful systems can be transformed from topological semimetals(TSMs)with vanishing bulk gap via introducing the spin-orbit coupling(SOC),which manifests the intrinsic links between the gapped topological insulator phases and the gapless TSMs.Recently,we have discovered a family of TSMs in time-reversal invariant spinless systems,which host butterfly-like nodal-lines(NLs)consisting of a pair of identical concentric intersecting coplanar ellipses(CICE).In this Communication,we unveil the intrinsic link between this exotic class of nodal-line semimetals(NLSMs)and a Z_(4)=2 topological crystalline insulator(TCI),by including substantial SOC.We demonstrate that in three space groups(i.e.,Pbam(No.55),P4/mbm(No.127),and P4_(2)/mbc(No.135)),the TCI supports a fourfold Dirac fermion on the(001)surface protected by two glide symmetries,which originates from the intertwined drumhead surface states of the CICE NLs.The higher order topology is further demonstrated by the emergence of one-dimensional helical hinge states,indicating the discovery of a higher order topological insulator protected by a glide symmetry. | Xiaoting Zhou Chuang-Han Hsu Cheng-Yi Huang Mikel Iraola Juan L.Mañes Maia G.Vergniory Hsin Lin Nicholas Kioussis | 2021 | npj Computational Materials2021，，1： | 0 |
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