scholarly journals Persistence of the valence bond glass state in the double perovskitesBa2−xSrxYMoO6

2010 ◽  
Vol 82 (9) ◽  
Author(s):  
A. C. Mclaughlin ◽  
M. A. de Vries ◽  
J.-W. G. Bos
Keyword(s):  
Valence Bond ◽  
Glass State ◽  
Bond Glass

scholarly journals Valence-bond-glass state with a singlet gap in the spin- 12 square-lattice random J1−J2 Heisenberg antiferromagnet Sr2CuTe1−xWxO6

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
Masari Watanabe ◽  
Nobuyuki Kurita ◽  
Hidekazu Tanaka ◽  
Wataru Ueno ◽  
Kazuki Matsui ◽  
...  
Keyword(s):  
Valence Bond ◽  
Square Lattice ◽  
Heisenberg Antiferromagnet ◽  
Glass State ◽  
Bond Glass

scholarly journals The valence bond glass phase

2008 ◽  
Vol 82 (6) ◽  
pp. 67008 ◽  
Author(s):  
M. Tarzia ◽  
G. Biroli
Keyword(s):  
Glass Phase ◽  
Valence Bond ◽  
Bond Glass

scholarly journals Valence Bond Glass on an fcc Lattice in the Double PerovskiteBa2YMoO6

2010 ◽  
Vol 104 (17) ◽  
Author(s):  
M. A. de Vries ◽  
A. C. Mclaughlin ◽  
J.-W. G. Bos
Keyword(s):  
Valence Bond ◽  
Fcc Lattice ◽  
Bond Glass

scholarly journals Low-temperature spin dynamics of a valence bond glass in Ba2YMoO6

2013 ◽  
Vol 15 (4) ◽  
pp. 043024 ◽  
Author(s):  
M A de Vries ◽  
J O Piatek ◽  
M Misek ◽  
J S Lord ◽  
H M Rønnow ◽  
...  
Keyword(s):  
Low Temperature ◽  
Spin Dynamics ◽  
Valence Bond ◽  
Bond Glass

Experimental evidence for a valence-bond glass in the 5d1 double perovskite Ba2YWO6

2021 ◽  
Vol 103 (22) ◽  
Author(s):  
S. Lee ◽  
Wonjun Lee ◽  
W. Guohua ◽  
J. Ma ◽  
H. Zhou ◽  
...  
Keyword(s):  
Experimental Evidence ◽  
Valence Bond ◽  
Double Perovskite ◽  
Bond Glass

Resolving the Quadruple Bonding Conundrum in C2 Using Insights Derived from Excited State Potential Energy Surfaces: A Molecular Orbital Perspective

2019 ◽  
Author(s):  
Ishita Bhattacharjee ◽  
Debashree Ghosh ◽  
Ankan Paul
Keyword(s):  
Excited State ◽  
Potential Energy ◽  
Molecular Orbital ◽  
High Spin ◽  
Potential Energy Surfaces ◽  
Valence Bond ◽  
Deep Minimum ◽  
State Potential ◽  
Energy Surfaces ◽  
Mo Theory

The question of quadruple bonding in C<sub>2</sub> has emerged as a hot button issue, with opinions sharply divided between the practitioners of Valence Bond (VB) and Molecular Orbital (MO) theory. Here, we have systematically studied the Potential Energy Curves (PECs) of low lying high spin sigma states of C<sub>2</sub>, N<sub>2</sub> and Be<sub>2</sub> and HC≡CH using several MO based techniques such as CASSCF, RASSCF and MRCI. The analyses of the PECs for the<sup> 2S+1</sup>Σ<sub>g/u</sub> (with 2S+1=1,3,5,7,9) states of C<sub>2</sub> and comparisons with those of relevant dimers and the respective wavefunctions were conducted. We contend that unlike in the case of N<sub>2</sub> and HC≡CH, the presence of a deep minimum in the <sup>7</sup>Σ state of C<sub>2</sub> and CN<sup>+</sup> suggest a latent quadruple bonding nature in these two dimers. Hence, we have struck a reconciliatory note between the MO and VB approaches. The evidence provided by us can be experimentally verified, thus providing the window so that the narrative can move beyond theoretical conjectures.

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