Not less than 20 — 25 years ago, D ick en s and W e il M a lh e r b e 1> 2 discovered that PL retard, whereas Choi promotes the formation of tumours induced by 3.4benzpyrene. For unexplainable reasons this remarkable finding of utmost importance was never commented in the literature (see, however, A ltm an 3 _6 ) . It should be emphasized that it concerns here with the fact that two very common...

Mn-based superconductor is rare and recently reported in quasi-one-dimensional KMn$_6$Bi$_5$ with [Mn$_6$Bi$_5$]-columns under high pressure. Here we report the synthesis, magnetic properties, electrical resistivity, specific heat capacity of newly-discovered NaMn$_6$Bi$_5$ single crystal. Compared other AMn$_6$Bi$_5$ (A = K, Rb, Cs), has larger intra-column Bi-Bi bond length, which may result ...

Kagome magnets are believed to have numerous exotic physical properties due the possible interplay between lattice geometry, electron correlation and band topology. Here, we report large anomalous Hall effect in kagome ferromagnet LiMn$_6$Sn$_6$, which has a Curie temperature of 382 K easy plane along with lattice. At low temperatures, unsaturated positive magnetoresistance opposite signs ordin...

Abstract We show that the only finite quasi-simple non-abelian groups can faithfully act on rationally connected threefolds are following groups: ${\mathfrak{A}}_5$ , ${\text{PSL}}_2(\textbf{F}_7)$ ${\mathfrak{A}}_6$ ${\text{SL}}_2(\textbf{F}_8)$ ${\mathfrak{A}}_7$ ${\text{PSp}}_4(\textbf{F}_3)$ ${\text{SL}}_2(\textbf{F}_{7})$ $2.{\mathfrak{A}}_5$ $2.{\mathfrak{A}}_6$ $3.{\mathfrak{A}}_6$ or $6...

The synthesis and characterization of the vanadium-based kagome metal TbV${_6}$Sn${_6}$ is presented. X-ray measurements confirm this material forms with same crystal structure type as recently investigated metals GdV$_6$Sn$_6$ YV$_6$Sn$_6$, space group symmetry P6/mmm. A signature a phase transition at 4.1K observed in heat capacity, resistivity, magnetic susceptibility measurements, both resi...

Two dimensional angular correlation of the positron annihilation radiation (2D-ACAR) spectra are measured for $\mathrm{LaB}_6$ along high symmetry directions and compared with first principle calculations based on density functional theory (DFT). This allows modeling Fermi surface in terms ellipsoid electron pockets centered at $X$-points elongated $\Sigma$ axis (${\Gamma-M}$ direction). The ob...

We report the synthesis and characterization of a Si-based ternary semiconductor Mg$_3$Si$_2$Te$_6$, which exhibits quasi-two-dimensional structure, where trigonal Mg$_2$Si$_2$Te$_6$ layers are separated by Mg ions. Ultraviolet-visible absorption spectroscopy density functional theory calculations were performed to investigate electronic structure. The experimentally determined direct band gap ...

The author presents a sequence of linear-time, bounded-space, on-line, bin-packing algorithms that are based on the "HARMONIC" algorithms Hk introduced by Lee and Lee [J. Assoc. Comput. Mach., 32 (1985), pp. 562-572 ]. The algorithms in this paper guarantee the worst case performance of Hk, whereas they only use O(log log k) instead ofk active bins. For k >_6, the algorithms in this paper outpe...