P4W20O68: A complex charge-density-wave modulated structure with an antiferroelectric-like lattice distortion

2000 ◽  
Vol 62 (1) ◽  
pp. 176-188 ◽  
Author(s):  
P. Roussel ◽  
Ph. Labbé ◽  
H. Leligny ◽  
D. Groult ◽  
P. Foury-Leylekian ◽  
...  
2018 ◽  
Vol 9 (1) ◽  
pp. 70 ◽  
Author(s):  
Tatsuhiko Ikeda ◽  
Hirokazu Tsunetsugu ◽  
Kenji Yonemitsu

We study the coupled charge-lattice dynamics in the commensurate charge density wave (CDW) phase of the layered compound 1T-TaS 2 driven by an ultrashort laser pulse. For describing its electronic structure, we employ a tight-binding model of previous studies including the effects of lattice distortion associated with the CDW order. We further add on-site Coulomb interactions and reproduce an energy gap at the Fermi level within a mean-field analysis. On the basis of coupled equations of motion for electrons and the lattice distortion, we numerically study their dynamics driven by an ultrashort laser pulse. We find that the CDW order decreases and even disappears during the laser irradiation while the lattice distortion is almost frozen. We also find that the lattice motion sets in on a longer time scale and causes a further decrease in the CDW order even after the laser irradiation.


2020 ◽  
Vol 76 (5) ◽  
pp. 412-415 ◽  
Author(s):  
Trinh Thi Ly ◽  
Ganbat Duvjir ◽  
Nguyen Huu Lam ◽  
Jungdae Kim ◽  
Byoung Ki Choi ◽  
...  

2014 ◽  
Vol 89 (16) ◽  
Author(s):  
Jixia Dai ◽  
Eduardo Calleja ◽  
Jacob Alldredge ◽  
Xiangde Zhu ◽  
Lijun Li ◽  
...  

1999 ◽  
Vol 60 (4) ◽  
pp. 2860-2863 ◽  
Author(s):  
Jiandi Zhang ◽  
Ismail ◽  
P. J. Rous ◽  
A. P. Baddorf ◽  
E. W. Plummer

1998 ◽  
Vol 57 (8) ◽  
pp. 4579-4583 ◽  
Author(s):  
A. P. Baddorf ◽  
V. Jahns ◽  
Jiandi Zhang ◽  
J. M. Carpinelli ◽  
E. W. Plummer

1995 ◽  
Vol 52 (6) ◽  
pp. 3892-3899 ◽  
Author(s):  
Albert Spijkerman ◽  
Auke Meetsma ◽  
Jan L. de Boer ◽  
Yan Gao ◽  
Sander van Smaalen

2004 ◽  
Vol 177 (4-5) ◽  
pp. 1598-1606 ◽  
Author(s):  
Thomas Doert ◽  
Boniface Polequin Fokwa Tsinde ◽  
Sven Lidin ◽  
F.Javier Garcı́a Garcı́a

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