Charge Density Wave Properties of Quasi Low-Dimensional Transition Metal Oxide Bronzes

1996 ◽  
Vol 6 (12) ◽  
pp. 2061-2078 ◽  
Author(s):  
C. Schlenker ◽  
C. Hess ◽  
C. Le Touze ◽  
J. Dumas
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Transition Metal Oxide ◽  
Oxide Bronzes ◽  
Low Dimensional ◽  
Wave Properties

scholarly journals Re-entrance to ferromagnetic insulator with oxygen-vacancy ordering in La0.7Sr0.3MnO3/SrTiO3 superlattice

2021 ◽  
Author(s):  
Bangmin Zhang ◽  
Lijun Wu ◽  
Xin Feng ◽  
Dongyang Wang ◽  
Xiao Chi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Vacancy ◽  
Metal Oxide ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Transition Metal Oxide ◽  
Local Environment ◽  
Vacancy Ordering

The charge-density-wave correlates with properties in transition metal oxide, and regulating this state is important to explore the potential of oxide. Defect could modulate local environment, of which the effect...

CHARGE DENSITY WAVE PROPERTIES OF MOLYBDENUM BRONZES

1993 ◽  
Vol 07 (23n24) ◽  
pp. 4045-4108 ◽  
Author(s):  
JEAN DUMAS ◽  
CLAIRE SCHLENKER
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Spin Density Wave ◽  
Superconducting Properties ◽  
One Dimensional ◽  
Peierls Transition ◽  
Blue Bronze ◽  
Low Dimensional ◽  
Wave Properties

The physical properties of the low dimensional molybdenum bronzes showing charge density wave (CDW) instabilities are reviewed. The mechanisms of the Peierls transition, CDW and spin density wave (SDW) instabilities are first introduced. The properties of the quasi-one-dimensional (1D) blue bronze, A 0.30 MoO 3, including non linear transport due to the depinning of the incommensurate CDW, are described. The transport properties and the effect of pressure on the superconducting properties of the quasi-1D Li purple bronze Li 0.9 Mo 6 O 17 are reported. Finally, one presents the properties of the commensurate CDW state of the quasi-2D purple bronze KMo 6 O 17, especially under high magnetic field and hydrostatic pressure.

Charge-density wave modulations in the transition metal chalcogenides

1996 ◽  
Vol 54 ◽  
pp. 706-707
Author(s):  
J.C. Bennett ◽  
F.W. Boswell
Keyword(s):  
Phase Transitions ◽  
Transition Metal ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Intercalation Compound ◽  
Metal Chalcogenides ◽  
Metal Atoms ◽  
Transition Metal Chalcogenides ◽  
Low Dimensional

The transition metal chalcogenides, due to the typically large covalency of the metal-chalcogenide bonds, often adopt low-dimensional structures and exhibit charge-density wave (CDW) modulations. Incommensurate (IC) or commensurate (C) modulations structures are observed as well as a rich variety of phase transitions driven by the temperature dependence of the CDW amplitude and phase. Defects of the CDW modulation, including antiphase boundaries (APB) and discommensurations (DC), are of determinate importance for the mediation of these phase transitions. The microstructural phenomena occurring in the quasi-one-dimensional chalcogenides will be surveyed with emphasis on two representative systems: the Nb1-xTaxTe4 solid solution and the MxNb3Te4 (M = In or TI) intercalation compound.The NbxTa1-xTe4 compounds are based on a tetragonal subcell with axes (a x a x c) and consist of an extended chain of metal atoms centered within an antiprismatic cage of Te atoms.

scholarly journals Incommensurate two-dimensional checkerboard charge density wave in the low-dimensional superconductor Ta4Pd3Te16

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Zhenzhong Shi ◽  
S. J. Kuhn ◽  
F. Flicker ◽  
T. Helm ◽  
J. Lee ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Two Dimensional ◽  
Low Dimensional

CHARGE DENSITY WAVE TRANSITIONS IN TWO-DIMENSIONAL TRANSITION METAL BRONZES AND OXIDES

1993 ◽  
Vol 07 (23n24) ◽  
pp. 3973-4003 ◽  
Author(s):  
P. FOURY ◽  
J.P. POUGET
Keyword(s):  
Transition Metal ◽  
Charge Density ◽  
Ground State ◽  
Charge Density Wave ◽  
Density Wave ◽  
Electron Localization ◽  
Two Dimensional ◽  
Fermi Surfaces ◽  
A Charge ◽  
Structural Instabilities

The structural instabilities towards the formation of a charge density wave (CDW) ground state exhibited by several layered Mo and W bronzes and oxides are reviewed. It is shown that in these two-dimensional (2D) metals, including the purple bronzes A x Mo 6 O 17 (A=K, Na, Tl; x≈1), the γ and η phases of MO 4 O 11 and the monophosphate tungsten bronzes with pentagonal tunnels ( PO 2)4 ( WO 3)2m(m=4, 6, 7), the CDW instability can be associated with particular chains of MoO 6 or WO 6 octahedra of the ReO 3 type slabs along which there is a strong overlap of the t 2g orbitals. The CDW critical wave vectors of the purple bronzes, Mo 4 O 11 and the tungsten bronzes with m=4 and 6 lead to a common nesting between differently oriented 1D Fermi surfaces. It is suggested that the anharmonic CDW modulation, which occurs in the tungsten bronzes with m≥7, could be the structural fingerprint of electron localization effects.

Phase stability of transition metal dichalcogenide by competing ligand field stabilization and charge density wave

2D Materials ◽  
2015 ◽  
Vol 2 (3) ◽  
pp. 035019 ◽  
Author(s):  
Santosh K C ◽  
Chenxi Zhang ◽  
Suklyun Hong ◽  
Robert M Wallace ◽  
Kyeongjae Cho
Keyword(s):  
Transition Metal ◽  
Charge Density ◽  
Phase Stability ◽  
Charge Density Wave ◽  
Density Wave ◽  
Ligand Field ◽  
Transition Metal Dichalcogenide
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