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Showing 1 to 20 of 115 for “"density wave"”.
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Low frequency charge-density wave dynamics
The low frequency dynamics of the charge-density waves in NbSe$\sb3$ and TaS$\sb3$ were investigated using low frequency conductance fluctuations. Simultaneous measurements of the fluctuations in the voltage and the differential resistance revealed a theory of threshold voltage fluctuations can …
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Photoemission Studies of Novel Charge Density Wave Systems
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-23T18:44:52Z No. of bitstreams: 1 Kidd_Timothy.pdf: 17087980 bytes, checksum: fe906676ec83edda201c0d424afa9f10 (MD5)
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Charge-Density-Wave Transport in Quasi - One-Dimensional Conductors
… collective-transport properties of charge-density-wave (CDW) conductors is presented. Measurements of current oscillations observed in response to applied dc voltages and of mode-locking phenomena observed in response to combined ac and dc voltages indicate a nearly complete analogy with …
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Scattering studies of density wave orders in unconventional superconductors
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
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Pair density wave superconducting states and statistical mechanics of dimers
… 4 are devoted to the study of the so called pair-density-wave (PDW) superconducting state and some of its connections to electronic liquid crystal (ELC) phases, its topological aspects in a one dimensional model and its appearance in a quasi-one dimensional system. On the other hand, chapter 5 is …
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Scanning tunneling microscopy of quasi-one-dimensional charge-density wave materials
Restriction data tranferred 2014-07-01T11:19:18-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
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Linear and Nonlinear Stability Analyses of Density-Wave Oscillations in Heated Channels
Linear and nonlinear stability analyses of density-wave oscillations in uniformly and non-uniformly heated channels are reported. The two-phase flow is represented by the drift flux model. A constant characteristic velocity v$\sbsp{\rm o}{\*}$ is used to make the set of equations dimensionless to …
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Density-Wave Instability Characterization in Boiling Water Reactors under MELLLA+ Domain during ATWS
Density wave oscillations (DWO) are a class of two-phase flow instabilities which can pose significant safety concerns to boiling water reactors (BWR). During an anticipated transient without scram (ATWS) while operating in the proposed extended operating domain MELLLA+, natural circulation …
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Emergence of charge density wave domain walls above the superconducting dome in TiSe2
… state, such as antiferromagnetism, charge density wave (CDW), or stripe order. This suggests a fundamental connection between SC and fluctuations in some other order parameter. 1T-TiSe2 is a prototypical CDW material in the transtion-metal dichalcogenide family and was previously shown to …
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The electronic structure of the pair-density-wave (PDW) superconductor in the cuprates
Pair density waves (PDWs) are a inhomogeneous superconducting states whose Cooper pairs possess a finite center-of-mass-momentum, ±Qi, resulting in a oscillatory gap in space in the ith directiond. In other words, the PDW order parameter is a Fourier expansion of the superconducting order with non …
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Charge density wave incommensuration in tise2 systems measured with hard x-ray scattering
… suggest that incommensurations of the charge density wave could play a role in the emergence of superconductivity.
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An experimental and theoretical study of density-wave oscillations in two-phase flow.
Massachusetts Institute of Technology. Dept. of Nuclear Engineering. Thesis. 1970. Sc.D.
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Light scattering studies of magnetostructural phases in Mn3O4 and charge density wave melting in ZrTe3
… select phonon lifetimes concomitant with charge density wave (CDW) formation, which indicates that these phonons are strongly coupled to regions of the Fermi surface that are gapped by the CDW. These strongly-coupled phonons involve internal vibrations of ZrTe3 prismatic rods. Applying pressure …
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Synthesis of 1T-Tantalum (IV) Sulfide and observation of charge density wave using scanning tunneling microscopy
… particular example is the existence of a charge density wave (CDW) in 1T-Tantalum (IV) Sulfide (1T-TaS2). A member of the transition metal dichalcogenide (TMDC) family, 1T-TaS2 exhibit a periodic modulation of electronic charge density. Unlike bulk semiconductor or metals, lattice distortion in …
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The Premartensitic Transitions of Titanium Nickel: Observation of a Charge Density Wave in a Binary Alloy
The appearance of a charge-density wave (CDW) and associated phase transitions has been identified in TiNi(Fe), a binary alloy. Bulk thermal and transport measurements have revealed that the "pre-martensitic instability" is composed of two distinct phase transitions. In TiNi(3.2% Fe), these occur …
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The Premartensitic Transitions of Titanium Nickel: Observation of a Charge Density Wave in a Binary Alloy
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2011-06-08T18:25:00Z No. of bitstreams: 1 1981_meichle.pdf: 5427373 bytes, checksum: e5297eaac99a6c38e92d60ee6827498e (MD5)
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Design of Resistivity Instrumentation for a He3 Cryostat and its Application to the Charge Density Wave Superconductor CuxTiSe2
Fermi patches in quasi-two dimensional charge density waves (CDW) have not described the connection to superconductivity (SC) according to theory adequately at this point in time. The connection between CDW and SC in the quasi-two dimensional material CuxTiSe2 is an interesting one which might …
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X-ray scattering study of the critical behavior of the second harmonic in the density wave system 7APCBB
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
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An X-ray study of charge-density-wave pinning and a measurement of the thermal conductivity in blue bronze
Two different aspects of the charge-density-wave (CDW) state were studied in the quasi-onedimensional metal blue bronze (Ko.3oMo03). In the primary experiment reported in this thesis, pinning of the CDW phase by lattice imperfections was examined. Pinning determines most of the dynamics of CDW …
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