New BEDT-TTF/[Fe(C5O5)3]3-Hybrid System:  Synthesis, Crystal Structure, and Physical Properties of a Chirality-Induced α Phase and a Novel Magnetic Molecular Metal

2007 ◽  
Vol 46 (11) ◽  
pp. 4446-4457 ◽  
Author(s):  
Eugenio Coronado ◽  
Simona Curreli ◽  
Carlos Giménez-Saiz ◽  
Carlos J. Gómez-García ◽  
Paola Deplano ◽  
...  
2020 ◽  
Vol 4 (10) ◽  
Author(s):  
F. Guillou ◽  
H. Yibole ◽  
R. Hamane ◽  
V. Hardy ◽  
Y. B. Sun ◽  
...  

2021 ◽  
Vol 7 (14) ◽  
pp. eabf2690
Author(s):  
J. Duan ◽  
G. Álvarez-Pérez ◽  
K. V. Voronin ◽  
I. Prieto ◽  
J. Taboada-Gutiérrez ◽  
...  

Polaritons with directional in-plane propagation and ultralow losses in van der Waals (vdW) crystals promise unprecedented manipulation of light at the nanoscale. However, these polaritons present a crucial limitation: their directional propagation is intrinsically determined by the crystal structure of the host material, imposing forbidden directions of propagation. Here, we demonstrate that directional polaritons (in-plane hyperbolic phonon polaritons) in a vdW crystal (α-phase molybdenum trioxide) can be directed along forbidden directions by inducing an optical topological transition, which emerges when the slab is placed on a substrate with a given negative permittivity (4H–silicon carbide). By visualizing the transition in real space, we observe exotic polaritonic states between mutually orthogonal hyperbolic regimes, which unveil the topological origin of the transition: a gap opening in the dispersion. This work provides insights into optical topological transitions in vdW crystals, which introduce a route to direct light at the nanoscale.


RSC Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 1164-1171
Author(s):  
Xiangmei Wang ◽  
Zeliang Gao ◽  
Chunyan Wang ◽  
Xiaojie Guo ◽  
Youxuan Sun ◽  
...  

This work reports the crystal structure and physical properties of the Y2Mo4O15 crystal and its potential use in the Raman laser.


Author(s):  
Manimuthu Periyasamy ◽  
Lokanath Patra ◽  
Øystein S. Fjellvåg ◽  
Ponniah Ravindran ◽  
Magnus H. Sørby ◽  
...  

1999 ◽  
Vol 148 (2) ◽  
pp. 295-301 ◽  
Author(s):  
Said Nadir ◽  
J.S. Swinnea ◽  
H. Steinfink

2017 ◽  
Vol 86 (12) ◽  
pp. 124802 ◽  
Author(s):  
Yudai Hijikata ◽  
Tomohiro Abe ◽  
Chikako Moriyoshi ◽  
Yoshihiro Kuroiwa ◽  
Yosuke Goto ◽  
...  

2021 ◽  
pp. 122357
Author(s):  
Menghu Zhou ◽  
Yadong Gu ◽  
Binbin Ruan ◽  
Qingsong Yang ◽  
Genfu Chen ◽  
...  

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