Výsledky vyhledávání - "W. O. Sprenger"

Formation of Single Size Si Clusters and Their Evaluation by Raman Spectroscopy

Autor: Krishnan Raghavachari, W. L. Brown, W. O. Sprenger, Atsushi Ogura, Cherry A. Murray, E. C. Honea

Publikováno v: Hyomen Kagaku. 17:68-73

レーザーアブレーション法で作製したSiクラスターを,四重極質量分離器を用いて単一サイズに制御し,同時堆積した不活性分子マトリクス中に埋め込んで,表面をAgでコートしたサファイア

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c039cd7086fbb9cd4d42376681ccac5
https://doi.org/10.1380/jsssj.17.68

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Microscopic structure and dynamics of a dense fluid near a smooth wall-video microscopy of colloidal spheres

Autor: W. O. Sprenger, C. A. Murray, R. A. Wenk

Publikováno v: Journal of Physics: Condensed Matter. 2:SA385-SA388

The authors measure the instantaneous atomic structure and dynamics of a three dimensional (3D) fluid near crystallization in contact with a smooth wall. The 'atoms' are monodisperse highly charged submicrometre spheres in colloidal suspension in wat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7afb47c16104d1d5bd71060d1dc89015
https://doi.org/10.1088/0953-8984/2/s/060

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Raman spectra of size-selected silicon clusters and comparison with calculated structures

Autor: W. O. Sprenger, Cherry A. Murray, Krishnan Raghavachari, W. L. Brown, E. C. Honea, Atsushi Ogura, Martin F. Jarrold

Publikováno v: Nature. 366:42-44

SMALL clusters of silicon, containing between 2 and 100 atoms, have been studied extensively both because of their intrinsic interest from the point of view of chemical structure and bonding and because of the potential technological applications of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08cdfe7018086a55162f67eb6df87751
https://doi.org/10.1038/366042a0

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Raman Spectroscopy of Size Selected, Matrix Isolated Si Clusters

Autor: E. C. Honea, Cherry A. Murray, Krishnan Raghavachari, Martin F. Jarrold, Atsushi Ogura, W. O. Sprenger, W. L. Brown

Publikováno v: MRS Proceedings. 332

We report results of Raman spectroscopy of size selected, matrix isolated Si clusters. Cluster ions produced by laser vaporization are size selected by a quadruple mass spectrometer and co-deposited with cryogenic matrices onto a substrate at ∼15K.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::050f72791b7cd4c4438810fe78cb827b
https://doi.org/10.1557/proc-332-333

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Comparison of melting in three and two dimensions: Microscopy of colloidal spheres

Autor: R. A. Wenk, W. O. Sprenger, C. A. Murray

Publikováno v: Physical review. B, Condensed matter. 42(1)

Etude des positions instantanees et des trajectoires de particules spheriques de polystyrene de charge elevee dans une suspension d'eau. On trouve qu'un cristal cfc tridimensionnel pres d'une paroi de verre lisse se melange brusquement dans un fluide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7824659133518d6266af1cbad69d1d0
https://pubmed.ncbi.nlm.nih.gov/9994590

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Mechanical Measurements of the Melting Transition in Thin Liquid-Crystal Films

Autor: David J. Bishop, M. E. Neubert, W. O. Sprenger, Ron Pindak

Publikováno v: Physical Review Letters. 49:1861-1864

Shear mechanical properties of the liquid crystal 4-$n$-pentylbenzenethio-4\ensuremath{'}-$n$-tetradecyloxybenzoate ($\stackrel{-}{14}\mathrm{S}5$) have been studied in films as thin as two molecular layers. Crystalline two-layer films were found to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6fdae812c44881cf9c55b6b1d27b8d8f
https://doi.org/10.1103/physrevlett.49.1861

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Study of the orientational electric field effect in 3He-B

Autor: M. C. Cross, D. D. Osheroff, W. van Roosbroeck, M. A. Paalanen, W. O. Sprenger

Publikováno v: Journal of Low Temperature Physics. 34:607-616

We have studied the orienting effect that an electric field has on the orbital motion of the pairs in superfluid 3He-B, using the orientation-dependent transverse NMR frequency shift as a probe. This method provides high resolution for studying the o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d190f59f8d86865bf07f44f507ef534
https://doi.org/10.1007/bf00114945

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Mechanical Measurements of the Smectic-B−ATransition in Liquid-Crystal Films

Autor: W. O. Sprenger, David J. Bishop, Ron Pindak

Publikováno v: Physical Review Letters. 44:1461-1464

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44f5bf032beadfc6def570a67ec6e644
https://doi.org/10.1103/physrevlett.44.1461

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Demountable 3He melting curve thermometer

Autor: K. R. Mountfield, L. R. Corruccini, W. O. Sprenger

Publikováno v: Review of Scientific Instruments. 49:314-317

We describe a demountable (3)He melting curve thermometer, suitable for use at low temperatures with liquid helium samples at any pressure. The thermometer's resolution is 10 microK below 0.l K. It is designed to be particularly useful for experiment

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd8f8e9e7b976e355b504f50d6306b7c
https://doi.org/10.1063/1.1135398

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