Zobrazeno 1 - 10
of 17
pro vyhledávání: '"D. B. Utton"'
Autor:
D. B. Utton
Publikováno v:
Journal of Applied Physics. 46:5268-5271
Calculations are made of the response to Gaussian and Lorentzian lineshapes of a phase‐sensitive detector operated at twice the modulation frequency. The modulation traverses the line resonance condition twice each cycle. Sensitivity to variations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26dc237bea2fb5c034dd55353021d1d1
https://doi.org/10.1063/1.321597
https://doi.org/10.1063/1.321597
Autor:
D. B. Utton, R. G. Scurlock
Publikováno v:
Nature. 272:148-151
THE rotating helium cryostat (1-m diameter, 3,000 r.p.m.) at Southampton provides a novel way of studying the behaviour of liquid helium. The centrifugal acceleration fields (up to 5,000g at the periphery) enable pressure differences up to 20 bar to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ec5b6d513c07e01dfc22b61f41c3a9f
https://doi.org/10.1038/272148b0
https://doi.org/10.1038/272148b0
Publikováno v:
Journal of Low Temperature Physics. 20:1-102
The subject of temperature measurement below 0.3 K is reviewed, with particular attention paid to developments reported in the period 1970–1974. Sensors, measurement techniques, primary and secondary thermometers, and fixed points are discussed and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ef601929de5d20d6e888008d23467bf
https://doi.org/10.1007/bf00115257
https://doi.org/10.1007/bf00115257
Autor:
D. B. Utton, Tung Tsang
Publikováno v:
The Journal of Chemical Physics. 64:3780-3783
Nuclear magnetic resonance (NMR) and relaxation studies of the proton spin-lattice relaxation time (PSLRT) and proton second moment (PSM) are reported. Tetramethylammonium cadmium chloride (TMCC) was selected as a diamagnetic member of the isomorphic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2d8543c1dbd0c27b1a38675f3be3fe6
https://doi.org/10.1063/1.432694
https://doi.org/10.1063/1.432694
Autor:
D B Utton
Publikováno v:
Metrologia. 3:98-105
The nuclear quadrupole resonance frequency of 35Cl in KClO3 has been studied in the temperature range 12 °K - 297 °K. The combined uncertainties in the frequency and temperature measurements correspond to ± 0.001 °K in the range 50 °K - 297 °K,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e4ec2c9dca445ea353b5574f33fd81e
https://doi.org/10.1088/0026-1394/3/4/002
https://doi.org/10.1088/0026-1394/3/4/002
Autor:
D B Utton
Publikováno v:
Journal of Physics C: Solid State Physics. 4:117-125
A study has been made of the proton nuclear magnetic resonance frequencies in ferrous fluosilicate hexahydrate at 4.2K. It is found that the magnetic fields at the proton sites due to the ferrous ions are incompatible with the published room temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::466b554ce54da7f6345b3025a50cec5c
https://doi.org/10.1088/0022-3719/4/1/015
https://doi.org/10.1088/0022-3719/4/1/015
Publikováno v:
Proceedings of the Physical Society. 85:127-130
By combining zero-field nuclear magnetic resonance techniques with specific heat measurements below 1 °K, the effective nuclear fields at the two Mn sites in ferromagnetic Mn5Ge3 have been uniquely determined as 195 kOe at the 4(d) site with a well-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03526e1f3cb0e5a3a2caab194edd7ccd
https://doi.org/10.1088/0370-1328/85/1/316
https://doi.org/10.1088/0370-1328/85/1/316
Autor:
D. B. Utton, B. W. Mangum
Publikováno v:
Physical Review B. 6:2790-2795
We have measured the proton nuclear magnetic resonance of tetramethylammonium manganese chloride, a linear chain antiferromagnet, in the temperature region 0.4-300 K. In addition, its ac magnetic susceptibility was measured in applied fields of 0 to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d029afdab22b1e45826530925dd6b987
https://doi.org/10.1103/physrevb.6.2790
https://doi.org/10.1103/physrevb.6.2790
Autor:
D. B. Utton, Tung Tsang
Publikováno v:
The Journal of Chemical Physics. 56:116-119
Both proton and fluorine nuclear spin-lattice relaxations have been studied by the 180- to 90-deg pulse method in magnesium fluosilicate hexahydrate at 25 and 13 MHz over the temperature range from 170 to 350 K. Observed nonexponential behavior of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c266fc4ad71d693fbe79fa29b246606
https://doi.org/10.1063/1.1676834
https://doi.org/10.1063/1.1676834