Influences of thallium-doping on the phase transition and Raman spectra of blue molybdenum bronzes in charge-density-wave state
Journal Article
·
· International Journal of Modern Physics B; (United States)
- Dept. of Physics, Wuhan Univ., Wuhan 430072 (CN)
- Center for Material Analysis, Nanjing Univ., Nanjing 210008 (CN)
In this paper, temperature dependencies of the Raman spectra of pure K{sub 0.3}MoO{sub 3} and thallium-doped K{sub 0.15}Tl{sub 0.15}MoO{sub 3} blue bronzes are reported. The results showed that in pure bronze the commensurate domains separated by discommensurations occur below 100 K, perhaps as a result of the influence of the commensurate potentials of the undistorted alkaline sublattice. The disorder Tl-impurities may destroy the commensurate domains and lead to complete incommensuration in Tl-doped blue bronze below 100 K. The tremendous critical fluctuations and impurity-induced lack of long-range order of incommensurate CDW would lead to the spectral continuum or its disappearing. The weak softening of the amplitude mode is about 11%, which is similar to previous report.
- OSTI ID:
- 7201659
- Journal Information:
- International Journal of Modern Physics B; (United States), Journal Name: International Journal of Modern Physics B; (United States) Vol. 6:13; ISSN 0217-9792; ISSN IJPBE
- Country of Publication:
- United States
- Language:
- English
Similar Records
Atomic Structure and Charge Density Waves of Blue Bronze by Variable Temperature Scanning Tunneling Microscopy
Thermal hysteresis, threshold, and dynamics of charge-density waves at low temperatures in blue bronzes (K{sub 1{minus}x}A{sub x}){sub 0.3}MoO{sub 3} (A=Tl or Na)
Commensurate-incommensurate transition in the charge-density-wave state of K/sub 0. 30/MoO/sub 3/
Journal Article
·
Sun Dec 31 23:00:00 EST 2006
· Physical Review B: Condensed Matter and Materials Physics
·
OSTI ID:930517
Thermal hysteresis, threshold, and dynamics of charge-density waves at low temperatures in blue bronzes (K{sub 1{minus}x}A{sub x}){sub 0.3}MoO{sub 3} (A=Tl or Na)
Journal Article
·
Tue Dec 31 23:00:00 EST 1996
· Physical Review, B: Condensed Matter
·
OSTI ID:450335
Commensurate-incommensurate transition in the charge-density-wave state of K/sub 0. 30/MoO/sub 3/
Journal Article
·
Mon Jan 14 23:00:00 EST 1985
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6108182
Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
360606 -- Other Materials-- Physical Properties-- (1992-)
ALKALI METAL COMPOUNDS
ALLOYS
AMPLITUDES
CHARGE DENSITY
CRYSTAL DOPING
CRYSTAL-PHASE TRANSFORMATIONS
DISTANCE
DOPED MATERIALS
FLUCTUATIONS
IMPURITIES
INTERACTION RANGE
MATERIALS
MOLYBDATES
MOLYBDENUM COMPOUNDS
OSCILLATION MODES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHONONS
POTASSIUM COMPOUNDS
QUASI PARTICLES
RAMAN SPECTRA
REFRACTORY METAL COMPOUNDS
SPECTRA
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
THALLIUM ADDITIONS
THALLIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
360602* -- Other Materials-- Structure & Phase Studies
360606 -- Other Materials-- Physical Properties-- (1992-)
ALKALI METAL COMPOUNDS
ALLOYS
AMPLITUDES
CHARGE DENSITY
CRYSTAL DOPING
CRYSTAL-PHASE TRANSFORMATIONS
DISTANCE
DOPED MATERIALS
FLUCTUATIONS
IMPURITIES
INTERACTION RANGE
MATERIALS
MOLYBDATES
MOLYBDENUM COMPOUNDS
OSCILLATION MODES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHONONS
POTASSIUM COMPOUNDS
QUASI PARTICLES
RAMAN SPECTRA
REFRACTORY METAL COMPOUNDS
SPECTRA
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
THALLIUM ADDITIONS
THALLIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
VARIATIONS