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  • Diffusion and distribution of deuterium in scandium deuteride thin films under irradiation of deuterium ion beam 

    Wang, Tao; Long, Jidong; Wang, Shiwei; Yang, Zhen; Li, Jie; Huang, Gang; Zhang, Linwen; Yang, Allen Jian; Wang, Xiao Renshaw (2017)
    Scandium deuteride (ScDx) thin films, as an alternative target for deuterium-deuterium (D-D) reaction, are a very important candidate for detection and diagnostic applications. Albeit with their superior thermal stability, ...
  • Zeeman splitting via spin-valley-layer coupling in bilayer MoTe2 

    Jiang, Chongyun; Liu, Fucai; Cuadra, Jorge; Huang, Zumeng; Li, Ke; Rasmita, Abdullah; Srivastava, Ajit; Liu, Zheng; Gao, Wei-Bo (2017)
    Atomically thin monolayer transition metal dichalcogenides possess coupling of spin and valley degrees of freedom. The chirality is locked to identical valleys as a consequence of spin–orbit coupling and inversion symmetry ...
  • Bi-directional high speed domain wall motion in perpendicular magnetic anisotropy Co/Pt double stack structures 

    Sethi, Pankaj; Krishnia, Sachin; Gan, Weiliang; Kholid, Farhan N.; Tan, Funan; Maddu, Ramu; Lew, Wen Siang (2017)
    We report bi-directional domain wall (DW) motion along and against current flow direction in Co/Pt double stack wires with Ta capping. The bi-directionality is achieved by application of hard-axis magnetic field favoring ...
  • Room-temperature 2D semiconductor activated vertical-cavity surface-emitting lasers 

    Shang, Jingzhi; Cong, Chunxiao; Wang, Zilong; Peimyoo, Namphung; Wu, Lishu; Zou, Chenji; Chen, Yu; Chin, Xin Yu; Wang, Jianpu; Soci, Cesare; Huang, Wei; Yu, Ting (2017)
    Two-dimensional (2D) semiconductors are opening a new platform for revitalizing widely spread optoelectronic applications. The realisation of room-temperature vertical 2D lasing from monolayer semiconductors is fundamentally ...
  • Oriented graphene nanoribbons embedded in hexagonal boron nitride trenches 

    Chen, Lingxiu; He, Li; Wang, Hui Shan; Wang, Haomin; Tang, Shujie; Cong, Chunxiao; Xie, Hong; Li, Lei; Xia, Hui; Li, Tianxin; Wu, Tianru; Zhang, Daoli; Deng, Lianwen; Yu, Ting; Xie, Xiaoming; Jiang, Mianheng (2017)
    Graphene nanoribbons (GNRs) are ultra-narrow strips of graphene that have the potential to be used in high-performance graphene-based semiconductor electronics. However, controlled growth of GNRs on dielectric substrates ...
  • Hot carrier cooling mechanisms in halide perovskites 

    Fu, Jianhui; Xu, Qiang; Han, Guifang; Wu, Bo; Huan, Cheng Hon Alfred; Leek, Meng Lee; Sum, Tze Chien (2017)
    Halide perovskites exhibit unique slow hot-carrier cooling properties capable of unlocking disruptive perovskite photon–electron conversion technologies (e.g., high-efficiency hot-carrier photovoltaics, photo-catalysis, ...
  • Thermodynamics of hairy black holes in Lovelock gravity 

    Hennigar, Robie A.; Tjoa, Erickson; Mann, Robert B. (2017)
    We perform a thorough study of the thermodynamic properties of a class of Lovelock black holes with conformal scalar hair arising from coupling of a real scalar field to the dimensionally extended Euler densities. We study ...
  • Gravitation and quadratic forms 

    Ananth, Sudarshan; Brink, Lars; Majumdar, Sucheta; Mali, Mahendra; Shah, Nabha (2017)
    The light-cone Hamiltonians describing both pure ( N = 0) Yang-Mills and N = 4 super Yang-Mills may be expressed as quadratic forms. Here, we show that this feature extends to theories of gravity. We demonstrate how ...
  • Aza-bridged bisphenanthrolinyl Pt(ii) complexes : efficient stabilization and topological selectivity on telomeric G-quadruplexes 

    He, Lei; Meng, Zhenyu; Xie, Yi-qun; Chen, Xiang; Li, Tianhu; Shao, Fangwei (2017)
    Two platinum complexes with an aza-bridged bis(1,10-phenanthrolin-2-yl)amine (bpa) were synthesized. The two phenanthrolines in bpa entered a flat plane prior to binding of nucleic acids, which bestowed on the two Pt ...
  • Transformable masks for colloidal nanosynthesis 

    Wang, Zhenxing; He, Bowen; Xu, Gefei; Wang, Guojing; Wang, Jiayi; Feng, Yuhua; Su, Dongmeng; Chen, Bo; Li, Hai; Wu, Zhonghua; Zhang, Hua; Shao, Lu; Chen, Hongyu (2018)
    Synthetic skills are the prerequisite and foundation for the modern chemical and pharmaceutical industry. The same is true for nanotechnology, whose development has been hindered by the sluggish advance of its synthetic ...
  • Biosensing with the singular phase of an ultrathin metal-dielectric nanophotonic cavity 

    Sreekanth, Kandammathe Valiyaveedu; Sreejith, Sivaramapanicker; Han, Song; Mishra, Amita; Chen, Xiaoxuan; Sun, Handong; Lim, Chwee Teck; Singh, Ranjan (2018)
    The concept of point of darkness has received much attention for biosensing based on phase-sensitive detection and perfect absorption of light. The maximum phase change is possible at the point of darkness where the ...
  • Nickel-Catalyzed Asymmetric Reductive Heck Cyclization of Aryl Halides to Afford Indolines 

    Qin, Xurong; Lee, Marcus Wen Yao; Zhou, Steve Jianrong (2017)
    A nickel‐catalyzed asymmetric reductive Heck reaction of aryl chlorides has been developed that affords substituted indolines with high enantioselectivity. Manganese powder is used as the terminal reductant with water as ...
  • The spectrum of eigenvalues for certain subgraphs of the k-point fixing graph 

    Ku, Cheng Yeaw; Lau, Terry; Wong, Kok Bin (2018)
    Let Sn be the symmetric group on n-points. The k-point fixing graph F(n, k) is defined to be the graph with vertex set Sn and two vertices g, h of F(n, k) are joined if and only if gh−1 fixes exactly k points. In this ...
  • Asymmetric Conjugate Addition of Organoboron Reagents to Common Enones Using Copper Catalysts 

    Wu, Chunlin; Yue, Guizhou; Nielsen, Christian Duc-Trieu; Xu, Kai; Hirao, Hajime; Zhou, Jianrong (Steve) (2016)
    Copper complexes of phosphoramidites efficiently catalyzed asymmetric addition of arylboron reagents to acyclic enones. Importantly, rare 1,4-insertion of arylcopper(I) was identified which led directly to O-bound copper ...
  • Palladium‐Catalyzed Direct Cyclopropylation of Heterocycles 

    Wu, Xiaojin; Lei, Chuanhu; Yue, Guizhou; Zhou, Jianrong (Steve) (2015)
    Many 1,3‐azoles and thiophenes are directly cyclopropylated in the presence of a simple palladium catalyst. The relative configuration on the three‐membered rings is retained in the products. Thus, the cyclopropyl–halide ...
  • A general method for asymmetric arylation and vinylation of silyl ketene acetals 

    Yang, Junfeng; Zhou, Jianrong (Steve) (2014)
    A new biarylmonophosphine was developed for highly asymmetric arylation and vinylation of silyl enolates of acyclic esters with good generality. The new stereocenters α to the ester groups were formed in high enantiomeric ...
  • A challenging Heck reaction of maleimides 

    Lim, Li Hui; Zhou, Jianrong (Steve) (2015)
    Maleimides are extremely susceptible to basic hydrolysis and gave poor yields under Heck conditions. The longstanding problem is solved with the use of a weak base KOAc in a carbonate solvent.
  • Stimuli-responsive multifunctional glyconanoparticle platforms for targeted drug delivery and cancer cell imaging 

    Wu, Xumeng; Tan, Yu Jia; Toh, Hui Ting; Nguyen, Lan Huong; Kho, Shu Hui; Chew, Sing Yian; Yoon, Ho Sup; Liu, Xue-Wei (2017)
    Targeted bioimaging or chemotherapeutic drug delivery to achieve the desired therapeutic effects while minimizing side effects has attracted considerable research attention and remains a clinical challenge. Presented herein ...
  • How one might miss early warning signals of critical transitions in time series data: A systematic study of two major currency pairs 

    Wen, Haoyu; Pica Ciamarra, Massimo; Cheong, Siew Ann (2018)
    There is growing interest in the use of critical slowing down and critical fluctuations as early warning signals for critical transitions in different complex systems. However, while some studies found them effective, ...
  • Experimental observation of optical Weyl points and Fermi arc-like surface states 

    Noh, Jiho; Huang, Sheng; Leykam, Daniel; Chong, Yi Dong; Chen, Kevin P.; Rechtsman, Mikael C. (2017)
    Weyl fermions are hypothetical two-component massless relativistic particles in three-dimensional (3D) space, proposed by Hermann Weyl in 1929. Their band-crossing points, called ‘Weyl points’, carry a topological charge ...

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