The Glass Transition

Donth, E.

doi:10.1007/978-3-662-04365-3

Cited by 750 publications

(516 citation statements)

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“…4 main graph. The points are consistent with a Vogel-Fulcher-Tammann law 40 used in the physics of glassy systems,…”

Section: Discussionsupporting

confidence: 85%

Cu nuclear magnetic resonance study of charge and spin stripe order inLa1.875Ba0.125CuO4

Pelc¹,

Grafe²,

Gu³

et al. 2017

Phys. Rev. B

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We present a Cu nuclear magnetic/quadrupole resonance study of the charge stripe ordered phase of LBCO, with detection of previously unobserved ('wiped-out') signal. We show that spin-spin and spin-lattice relaxation rates are strongly enhanced in the charge ordered phase, explaining the apparent signal decrease in earlier investigations. The enhancement is caused by magnetic, rather than charge fluctuations, conclusively confirming the long-suspected assumption that spin fluctuations are responsible for the wipeout effect. Observation of the full Cu signal enables insight into the spin and charge dynamics of the stripe-ordered phase, and measurements in external magnetic fields provide information on the nature and suppression of spin fluctuations associated with charge order. We find glassy spin dynamics, in agreement with previous work, and incommensurate static charge order with charge modulation amplitude similar to other cuprate compounds, suggesting that the amplitude of charge stripes is universal in the cuprates.

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“…4 main graph. The points are consistent with a Vogel-Fulcher-Tammann law 40 used in the physics of glassy systems,…”

Section: Discussionsupporting

confidence: 85%

Cu nuclear magnetic resonance study of charge and spin stripe order inLa1.875Ba0.125CuO4

Pelc¹,

Grafe²,

Gu³

et al. 2017

Phys. Rev. B

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“…At present, some most challenging issues are related to the physical properties of interfacial and nanoconfined fluids, with a special interest towards the structural relaxation 25 processes (with its cooperative character 1 ) and the glassy dynamics of confined liquids 2,3 .Whereas the case of simple liquids has been extensively investigated 3 , many aspects of the dynamical behaviour of more complex nanoconfined fluids, like binary systems or anisotropic phases, still remain 30 up to now unclear. Progresses in this field require a prior comprehensive characterization of the microscopic relaxation processes that occur in the bulk system.…”

mentioning

confidence: 99%

Incoherent quasielastic neutron scattering study of molecular dynamics of 4-n-octyl-4′-cyanobiphenyl

Lefort

Morineau

Guégan

et al. 2008

Phys. Chem. Chem. Phys.

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We report incoherent quasielastic neutron scattering experiments on the thermotropic liquid crystal 4-n-cyano-4'-octylbiphenyl. The combination of time-of-flight and backscattering data allows analyzing the intermediate scattering function over about three decades of relaxation times. Translational diffusion and uniaxial molecular rotations are clearly identified as the major relaxation processes in respectively the nanosecond and picosecond time scales. The comparison with literature data obtained by other techniques is discussed.

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“…It is sometimes said that the relevant physics for the glass transition sets in at T c , and is therefore out of reach of numerical simulations [16]. Crossovers into the activated dynamics regime are also reported to occur at temperatures T x [17] or T B [18], depending on which aspect of the physics is considered.…”

Section: Introductionmentioning

confidence: 99%

Real space origin of temperature crossovers in supercooled liquids

2003

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We show that the various crossovers between dynamical regimes observed in experiments and simulations of supercooled liquids can be explained in simple terms from the existence and statistical properties of dynamical heterogeneities. We confirm that dynamic heterogeneity is responsible for the slowing down of glass formers at temperatures well above the dynamic singularity Tc predicted by mode coupling theory. Our results imply that activated processes govern the long-time dynamics even in the temperature regime where they are neglected by mode-coupling theory. We show that alternative interpretations based on topographic properties of the potential energy landscape are complicated and inefficient ways of describing simple physical features which are naturally accounted for within our approach. We show in particular that the reported links between mode coupling and landscape singularities do not exist.

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The Glass Transition

Cited by 750 publications

References 0 publications

Cu nuclear magnetic resonance study of charge and spin stripe order inLa1.875Ba0.125CuO4

Cu nuclear magnetic resonance study of charge and spin stripe order inLa1.875Ba0.125CuO4

Incoherent quasielastic neutron scattering study of molecular dynamics of 4-n-octyl-4′-cyanobiphenyl

Real space origin of temperature crossovers in supercooled liquids

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