Výsledky vyhledávání - "S. J. Harker"

Autor: Hiroshi Okimoto, Glen A. Stewart, Wayne D. Hutchison, Katsuhiko Nishimura, S. J. Harker

Publikováno v: Hyperfine Interactions. 208:39-42

57Fe-Mossbauer spectroscopy for the Nb1 − xHfxFe2 intermetallic series reveals the presence of local Fe 6h-site moments well above the magnetic transition temperatures determined from bulk magnetisation measurements. The techniques combine to demon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f939abadaf1256157498fbc18d423f36
https://doi.org/10.1007/s10751-011-0445-y

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The Nature of Line Broadening in Thermally Detected 57FeFe NMR

Autor: Wayne D. Hutchison, S. J. Harker, D. H. Chaplin, Glen A. Stewart

Publikováno v: Hyperfine Interactions. 159:121-125

57FeFe with isotopic concentrations from 15 to 95% is studied using NMR thermally detected by nuclear orientation. Lines are found to be consistently homogeneous. The contrast with previous inhomogeneous 57FeFe lines from Mossbauer detected NMR is ex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a24b106d9a30dbb166169406959b7d54
https://doi.org/10.1007/s10751-005-9089-0

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In situ 54Mn NMRON Studies of the Mixed Halide Mn(Br X Cl1−X )2 · 4H2O in Applied Magnetic Fields

Autor: S. J. Harker, D. H. Chaplin, G.J Bowden, Wayne D. Hutchison

Publikováno v: Hyperfine Interactions. 159:331-335

54Mn NMRON in the mixed halide antiferromagnet, Mn(BrXCl1−X )2· 4H2O, for varying external field, is reported. Significant qualitative differences are found between these NMRON transitions and those of the two terminal compounds, especially in res

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::91a9bca16665e33758a9d9092cd5d81d
https://doi.org/10.1007/s10751-005-9123-2

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Crystal field interaction in RFe2Si2 (R = Er and Tm)

Autor: S. J. Harker, C.F. de Vroege, P.C.M. Gubbens, Glen A. Stewart

Publikováno v: Journal of Alloys and Compounds. 402:17-20

New inelastic neutron scattering data for ErFe2Si2 and Tm 169 Mossbauer spectra for TmFe2Si2 are presented. These data are analysed in terms of the crystal field acting at the rare earth site and new crystal field parameters are presented. The new cr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef94b5cdcec5d16d74c78a96df8d4da2
https://doi.org/10.1016/j.jallcom.2005.04.149

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Spin Flop Studies in the AF Mixed Halide (54Mn)Mn(Br x Cl1−x )24H2O via Low Temperature Nuclear Orientation

Autor: G. J. Bowden, D. H. Chaplin, Wayne D. Hutchison, S. J. Harker

Publikováno v: Hyperfine Interactions. 158:175-179

The spin flop behaviour of low anisotropy Mn ions within the mixed halide (54Mn)Mn(BrxCl1−x )2 ·4H2O is shown to be interpolative with that of the two terminal compounds, in striking contrast with the dynamics of nuclear spin lattice relaxation.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::523e0f8b0d97b69c0bd86292bdc905e0
https://doi.org/10.1007/s10751-005-9026-2

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Magnetic behaviour of DyFe4Ge2 and ErFe4Ge2 studied by 57Fe, 161Dy and 166Er Mössbauer spectroscopy

Autor: B.D van Dijk, K.H.J. Buschow, A.M Mulders, P.C.M. Gubbens, S. J. Harker

Publikováno v: Journal of Alloys and Compounds. 319:1-6

We have studied DyFe4Ge2 and ErFe4Ge2 with 57Fe, 161Dy and 166Er Mossbauer spectroscopy. DyFe4Ge2 has a c axis anisotropy, whereas ErFe4Ge2 could be interpreted with two subspectra with both an angle with respect to the c axis. In ErFe4Ge2 a magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b108aa47390848806bd6bf04d741d9a0
https://doi.org/10.1016/s0925-8388(01)00878-7

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[Untitled]

Autor: K. Nishimura, Susumu Ohya, Katsunori Mori, S. J. Harker, D. H. Chaplin, Wayne D. Hutchison

Publikováno v: Hyperfine Interactions. 133:121-125

The angular distributions of γ-rays from 142Pr, 147Nd and 144Pm in Pr0.5Nd0.5Ni were investigated by means of low-temperature nuclear orientation. The results show that the Pr and Nd electronic moments order along the c- and a-axis, respectively. Pm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::42485ecbb45341b3cffbfb5ec1997906
https://doi.org/10.1023/a:1012221804128

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[Untitled]

Autor: D. H. Chaplin, Wayne D. Hutchison, S. J. Harker, G.J Bowden

Publikováno v: Hyperfine Interactions. :307-312

A NMRON study of magnetically ordered HoF3 using in-situ neutron activated 166mHo (I=7) isoelectronic probes in a spherical single crystal is presented. The optimal sensitivity to resonant change in the gamma-ray anisotropy of the 810 keV daughter ga

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c847ba6285ac87a2f3366dfbac138af1
https://doi.org/10.1023/a:1020573322668

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Magnetic order and crystal fields in the Pnma phases of Tm2BaTO5 (T=Co and Ni)

Autor: P.C.M Gubbens, Glen A. Stewart, S. J. Harker

Publikováno v: Journal of Alloys and Compounds. 307:70-76

The magnetic ordering and crystal field interactions of the Pnma phases of both Tm2BaCoO5 and Tm2BaNiO5 are investigated by 169Tm Mossbauer spectroscopy and the temperature-dependent hyperfine interactions are compared with those obtained elsewhere f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d68c3a24ad806326abf038bf7553204
https://doi.org/10.1016/s0925-8388(00)00840-9

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