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Relevant bibliographies by topics / Quadrupolar phase

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Journal articles

Academic literature on the topic 'Quadrupolar phase'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Quadrupolar phase"

1

Amm, David T., Stanley L. Segel, and Kenneth R. Jeffrey. "Hydroxide-ion dynamics in cesium hydroxide: a deuteron nuclear magnetic resonance study." Canadian Journal of Physics 64, no. 1 (1986): 22–26. http://dx.doi.org/10.1139/p86-004.

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CSOD exists in a number of solid phases that are distinguished by the different equilibrium positions and dynamics of the OD− ion. Deuteron nuclear magnetic resonance (NMR) was used as a probe because the observed quadrupolar split spectra provide a sensitive means of detecting changes in the symmetry properties of the unit cell and the motion of the O—D bond. Measurements are reported for the nuclear quadrupole coupling constant and the effective asymmetry parameter over the range from 100 to 500 K. The NMR data as well as differential thermal analysis confirm phase transitions from the cubic

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2

O’Shea, Seamus F., Girija S. Dubey, and Jayendran C. Rasaiah. "Phase transitions of quadrupolar fluids." Journal of Chemical Physics 107, no. 1 (1997): 237–42. http://dx.doi.org/10.1063/1.474370.

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3

Makrinich, Maria, and Amir Goldbourt. "1H-Detected quadrupolar spin–lattice relaxation measurements under magic-angle spinning solid-state NMR." Chemical Communications 55, no. 39 (2019): 5643–46. http://dx.doi.org/10.1039/c9cc01176e.

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4

Kadowaki, H., H. Takatsu, T. Taniguchi, B. Fåk, and J. Ollivier. "Composite Spin and Quadrupole Wave in the Ordered Phase of Tb2+xTi2-xO7+y." SPIN 05, no. 02 (2015): 1540003. http://dx.doi.org/10.1142/s2010324715400032.

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The hidden ordered state of the frustrated pyrochlore oxide Tb 2+x Ti 2-x O 7+y is possibly one of the two electric multipolar, or quadrupolar, states of the effective pseudospin-1/2 Hamiltonian derived from crystal-field ground state doublets of non-Kramers Tb 3+ ions. These long-range orders are antiparallel or parallel alignments of transverse pseudospin components representing electric quadrupole moments, which cannot be observed as magnetic Bragg reflections by neutron scattering. However, pseudospin waves of these states are composite waves of the magnetic-dipole and electric-quadrupole

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5

Lim, C. C. "Phase Transition to Quadrupolar Vortices in a Spherical Model of the Energy-Enstrophy Theory — Exact Solution." Nelineinaya Dinamika 16, no. 4 (2020): 543–55. http://dx.doi.org/10.20537/nd200402.

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A new energy-enstrophy model for the equilibrium statistical mechanics of barotropic flow on a sphere is introduced and solved exactly for phase transitions to quadrupolar vortices when the kinetic energy level is high. Unlike the Kraichnan theory, which is a Gaussian model, we substitute a microcanonical enstrophy constraint for the usual canonical one, a step which is based on sound physical principles. This yields a spherical model with zero total circulation, a microcanonical enstrophy constraint and a canonical constraint on energy, with angular momentum fixed to zero. A closed-form solut

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6

Zhang, Weilu, Shangfei Wu, Shigeru Kasahara, Takasada Shibauchi, Yuji Matsuda, and Girsh Blumberg. "Quadrupolar charge dynamics in the nonmagnetic FeSe1−xSx superconductors." Proceedings of the National Academy of Sciences 118, no. 20 (2021): e2020585118. http://dx.doi.org/10.1073/pnas.2020585118.

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We use polarization-resolved electronic Raman spectroscopy to study quadrupolar charge dynamics in a nonmagnetic FeSe1−xSx superconductor. We observe two types of long-wavelength XY symmetry excitations: 1) a low-energy quasi-elastic scattering peak (QEP) and 2) a broad electronic continuum with a maximum at 55 meV. Below the tetragonal-to-orthorhombic structural transition at TS(x), a pseudogap suppression with temperature dependence reminiscent of the nematic order parameter develops in the XY symmetry spectra of the electronic excitation continuum. The QEP exhibits critical enhancement upon

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7

Harris, A. Brooks, and Horst Meyer. "Orientational ordering in solid ortho–para H2 mixtures and analogy with a spin glass." Canadian Journal of Physics 63, no. 1 (1985): 3–23. http://dx.doi.org/10.1139/p85-002.

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A review is presented of our understanding of the orientational ordering in solid hydrogen, where ortho-H2 molecules are subject to anisotropic electric quadrupole–quadrupole interactions. This review pertains to solid H2 at low pressures and is concerned mostly with NMR experiments. After a discussion of the phase transition from the disordered hexagonal close-packed (hep) to the long-range ordered cubic phase, a description is given of experimental investigations of the ordering in the hep phase for ortho concentrations X < 0.53. This ordering appears to take place continuously as the tem

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8

Akazawa, Teruhiko, Takashi Suzuki, Hiroshi Goshima, et al. "Quadrupolar and Magnetic Phase Diagram of UNiSn." Journal of the Physical Society of Japan 67, no. 9 (1998): 3256–60. http://dx.doi.org/10.1143/jpsj.67.3256.

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9

Scalise, O. H., R. D. Gianotti, G. J. Zarragoicoechea, and A. E. Rodríguez. "Phase equilibria in quadrupolar fluid binary mixtures." Journal of Chemical Physics 89, no. 2 (1988): 1078–82. http://dx.doi.org/10.1063/1.455261.

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10

Vega, C., B. Garzón, S. Lago, and P. A. Monson. "Understanding the phase diagrams of quadrupolar molecules." Journal of Molecular Liquids 76, no. 3 (1998): 157–69. http://dx.doi.org/10.1016/s0167-7322(98)00060-9.

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