Monophosphate Tungsten Bronzes. A New Family of Low-Dimensional, Charge-Density-Wave Oxides

1996 ◽  
Vol 29 (5) ◽  
pp. 219-228 ◽  
Author(s):  
Martha Greenblatt
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
New Family ◽  
Low Dimensional

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 instabilities in the low-dimensional molybdenum bronzes and oxides

1985 ◽  
Vol 52 (3) ◽  
pp. 643-667 ◽  
Author(s):  
C. Schlenker ◽  
J. Dumas ◽  
C. Escribe-filippini ◽  
H. Guyot ◽  
J. Marcus ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Instabilities ◽  
Low Dimensional

scholarly journals Cascading transitions toward unconventional charge density wave states in the quasi-two-dimensional monophosphate tungsten bronze P4W16O56

IUCrJ ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 184-192
Author(s):  
Elen Duverger-Nédellec ◽  
Alain Pautrat ◽  
Kamil K. Kolincio ◽  
Laurence Hervé ◽  
Olivier Pérez
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Chemical Vapour ◽  
Tungsten Bronze ◽  
X Ray Diffraction ◽  
Strong Electron ◽  
Electron Phonon Coupling ◽  
Wave States ◽  
Low Dimensional

Single crystals of the m = 8 member of the low-dimensional monophosphate tungsten bronzes (PO2)4(WO3)2m family were grown by chemical vapour transport technique and the high crystalline quality obtained allowed a reinvestigation of the physical and structural properties. Resistivity measurements revealed three anomalies at T C1 = 258 K, T C2 = 245 K and T C3 = 140 K, never observed until now. Parallel X-ray diffraction investigations showed a specific signature associated with three structural transitions, i.e. the appearance of different sets of satellite reflections below T C1, T C2 and T C3. Several harmonics of intense satellite reflections were observed, reflecting the non-sinusoidal nature of the structural modulations and a strong electron–phonon coupling in the material. These transitions could be associated with the formation of three successive unconventional charge density wave states.

Charge density wave, superconductivity, and non-metallic behaviour under high pressure in ZrTe3

2002 ◽  
Vol 12 (9) ◽  
pp. 97-98
Author(s):  
K. Igarashi ◽  
S. Yasuzuka ◽  
K. Inagaki ◽  
S. Tanda ◽  
Y. Okajima ◽  
...  
Keyword(s):  
High Pressure ◽  
Fermi Surface ◽  
Charge Density ◽  
Charge Density Wave ◽  
High Pressures ◽  
Density Wave ◽  
Metallic State ◽  
Resistivity Measurements ◽  
Low Dimensional ◽  
The Relationship

The charge-density-wave (CDW) order of low-dimensional inorganic conductor ZrTe3 is found to increase with increasing pressure, while the superconductivity with filamentary nature is significantly suppressed. It was evidenced in resistivity measurements under pressure up to 0.8 Cpa. The present results suggest that competition between the superconductivity and the CDW is not simply explained by a nesting effect of the Fermi surface, but other origin is needed. Non-metallic behaviour is also found below 4 K under high pressures above 0.6 Gpa. The relationship between the non-metallic state and the pressure-enhanced CDW is expected, although yet inexplicable.

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.

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