Dr Stephen Harker

School of Physical, Environmental and Mathematical Sciences
  • PUBLICATIONS

Journal articles

Harker SJ; Stewart GA; Hutchison WD; Amiet A; Tucker D, 2015, 'Microwave absorption and 57Fe Mössbauer properties of Ni-Ti doped barium hexaferrite', Hyperfine Interactions, vol. 230, pp. 205 - 211, 10.1007/s10751-014-1116-6

Harker SJ; Stewart GA; Okimoto H; Nishimura K; Hutchison WD, 2012, 'Magnetic properties of Nb1-xHfxFe2', Hyperfine Interactions, vol. 208, pp. 39 - 42, 10.1007/s10751-011-0445-y

Harker S; Hicks TJ; Kennedy SJ; Yu D, 2007, 'High luminosity time of flight with polarisation analysis: CeCu6', Physica B - Condensed Matter, vol. 397, pp. 15 - 19

Hutchison WD; Harker SJ; Chaplin DH; Bowden GJ, 2005, 'In situ54Mn NMRON studies of the mixed halide Mn(BrXCl1-X)2·4H2O in applied magnetic fields', Hyperfine Interactions, vol. 159, pp. 331 - 335, 10.1007/s10751-005-9123-2

Hutchison WD; Stewart GA; Harker SJ; Chaplin DH, 2005, 'The nature of line broadening in thermally detected 57FeFe NMR', Hyperfine Interactions, vol. 159, pp. 121 - 125, 10.1007/s10751-005-9089-0

Harker SJ; Hutchison WD; Chaplin DH; Bowden GJ, 2005, 'Spin flop studies in the AF mixed halide (54Mn)Mn(BrxCl1-x)2·4H2O via low temperature nuclear orientation', Hyperfine Interactions, vol. 158, pp. 175 - 179, 10.1007/s10751-005-9026-2

Harker SJ; Stewart GA; Gubbens PCM; De Vroege CF, 2005, 'Crystal field interaction in RFe2Si2 (R = Er and Tm)', Journal of Alloys and Compounds, vol. 402, pp. 17 - 20, 10.1016/j.jallcom.2005.04.149

Harker SJ; Van Dijk BD; Mulders AM; Gubbens PCM; Stewart GA; De Vroege CF; Buschow KHJ, 2002, 'Crystal fields and magnetic interactions in TmT2Si2 (T = Co, Ni, Cu)', Journal of Physics Condensed Matter, vol. 14, pp. 2705 - 2714, 10.1088/0953-8984/14/10/319

Stewart GA; Hutchison WD; Harker SJ; Chaplin DH, 2002, 'Mössbauer absorber detection of nuclear magnetic resonance at millikelvin temperature', Physical Review B - Condensed Matter and Materials Physics, vol. 66, pp. 1 - 7, 10.1103/PhysRevB.66.134415

Hutchison WD; Chaplin DH; Harker SJ; Bowden GJ, 2001, 'NMRON study of magnetically ordered (166mHo)HoF3', Hyperfine Interactions, vol. 136-137, pp. 307 - 312

Nishimura K; Hutchison WD; Chaplin DH; Harker SJ; Mori K; Ohya S, 2001, 'Nuclear orientation studies of magnetism in single crystal Pr0.5Nd0.5Ni', Hyperfine Interactions, vol. 133, pp. 121 - 125, 10.1023/A:1012221804128

Stewart GA; Zukrowski J; Gubbens PCM; Van der Nol R; Harker SJ, 2001, 'Magnetic behaviour in Tm2Fe3Si5', Journal of Magnetism and Magnetic Materials, vol. 236, pp. 93 - 98, 10.1016/S0304-8853(01)00190-1

Prandolini MJ; Hutchison WD; Chaplin DH; Harker S; Bowden GJ; Bleaney B, 2000, 'A low-temperature study of electronic and nuclear states in YbVO4 using NMR thermally detected by nuclear orientation', Physica B - Condensed Matter, pp. 1712 - 1713

Harker SJ; Stewart GA; Gubbens PCM, 2000, 'Magnetic order and crystal fields in the Pnma phases of Tm2BaTO5(T = Co and Ni)', Journal of Alloys and Compounds, vol. 307, pp. 70 - 76, 10.1016/S0925-8388(00)00840-9

Stewart G; Harker S; Strecker M; Wortmann G, 2000, 'Mössbauer spectroscopy investigation of the phase nickelates and', Physical Review B - Condensed Matter and Materials Physics, vol. 61, pp. 6220 - 6226, 10.1103/PhysRevB.61.6220

Bowden GJ; Hutchison WD; Chaplin DH; Prandolini MJ; Harker S; Bleaney B, 1999, 'A low temperature study of antiferromagnetic YbVO4 ny NMR thermally detected by nuclear orientation', Hyperfine Interactions, vol. 121, pp. 215 - 219

Nishimura K; Mori K; Ohya S; Muto S; Hutchison WD; Harker S; Chaplin DH, 1999, 'Magnetic anisotropy of Pm impurity in rare earth-nickel copmound', Hyperfine Interactions, vol. 121, pp. 203 - 207

Hutchison WD; Prandolini MJ; Harker SJ; Chaplin DH; Bowden GJ; Bleaney B, 1999, 'A low temperature study of antiferromagnetic YbVO4 by NMR thermally detected by nuclear orientation', Hyperfine Interactions, vol. 120-121, pp. 215 - 219

Hutchison WD; Harker SJ; Chaplin DH; Funk T; Klein E, 1999, 'Radiative detection of NMR studies of domain nuclei in enriched ferromagnetic iron', HYPERFINE INTERACTIONS, vol. 120, pp. 193 - 198, 10.1023/A:1017006919306

Nishimura K; Mori K; Ohya S; Muto S; Hutchison WD; Harker SJ; Chaplin DH, 1999, 'Magnetic anisotropy of Pm impurity in rare earth-nickel compound', HYPERFINE INTERACTIONS, vol. 120, pp. 203 - 207, 10.1023/A:1017011020215

Harker S; Cadogan JM; Stewart GA; Campbell SJ; Kennedy S; Edge AV, 1998, 'A structural & magnetic study of Nd(Fe, Ni)8.5Si2.5', Journal of Magnetism and Magnetic Materials, vol. 183, pp. 101 - 110

Harker SJ; Cadogan JM; Stewart GA; Campbell SJ; Kennedy SJ; Edge AVJ, 1998, 'A structural and magnetic study of Nd(Fe, Ni)8.5Si2.5', Journal of Magnetism and Magnetic Materials, vol. 183, pp. 101 - 110, 10.1016/S0304-8853(97)01082-2

Stewart GA; Harker SJ; Pooke DM, 1998, 'Crystal-field interaction at the thulium site in TmBa2Cu4O8', Journal of Physics Condensed Matter, vol. 10, pp. 8269 - 8278, 10.1088/0953-8984/10/37/013

Hutchison WD; Harker SJ; St Quintin TD; Stewart GA; Grayevsky A; Kaplan N, 1997, 'On the diffusion of Co into PrNi5', Solid State Communications, vol. 104, pp. 113 - 117, 10.1016/S0038-1098(97)00214-7

Harker SJ; Stewart GA; Edgea AVJ, 1996, 'Induced thulium magnetisation for the Immm phase of Tm2BaNiO5', Solid State Communications, vol. 100, pp. 307 - 310, 10.1016/0038-1098(96)00457-7

Conference Papers

Harker SJ; Stewart GA; Hutchison WD; Amiet A; Tucker D, 2015, 'Microwave absorption and 57Fe Mössbauer properties of Ni-Ti doped barium hexaferrite', in Hyperfine Interactions, Kluwer Academic Publishers, presented at , 10.1007/s10751-014-1116-6

Hutchison WD; Harker S; Spizzirri PG; Hoehne F; Brandt MS, 2012, 'Electrically Detected Magnetic Resonance Applied to Near Surface Phosphorus Donors in Silicon', in Proceedings of the 36th Annual Condensed Matter and Materials Meeting, Australian Institute of Physics, Wagga Wagga NSW, pp. tp 35 - p127, presented at 36th Annual ANZIP Condensed Matter and Materials Meeting, Wagga Wagga NSW, 31 January - 03 February 2012

Harker S; Stewart GA; Okimoto H; Nishimura K; Hutchison WD, 2012, 'MAGNETIC PROPERTIES OF Nb1-XHfXFe2', in Proceedings of the 36th Annual Condensed Matter and Materials Meeting, Australian Institute of Physics, Wagga Wagga NSW, pp. tp20, p112, presented at 36th Annual ANZIP Condensed Matter and Materials Meeting, Wagga Wagga NSW, 31 January - 03 February 2012

Harker S; Okimoto H; Stewart GA; Nishimura K; Hutchison WD, (ed.), 2011, 'An 57Fe Mossbauer study of the magnetic phase diagram for Nb1-xHfxFe2', in Proceedings of 35th Annual Condensed Matter and Materials Meeting, Wagga Wagga 2011, Australian Institute of Physics, Wagga Wagga NSW, pp. 71, presented at 35th Annual Condensed Matter and Materials Meeting, 2011, Wagga Wagga NSW, 01 - 04 February 2011

Jimenez E; Gubbens PC; Stewart GA; Harker S; Robinson D; Dalmas de Reotier P; Yaouanc A; Isasi J; Saez-Puche R, (ed.), 2005, 'Interplay between Tm and Cr magnetic sublattices in TmCrO4', in 16th National Congress: Physics for the Nation, 16th National Congress: Physics for the Nation, Australian National University, Canberra, pp. 175 - 175, presented at 16th National Congress: Physics for the Nation, Australian National University, Canberra, 30 January - 04 February 2005

Harker S; Stewart GA; Gubbens PC; de Vroege CF, (ed.), 2005, 'Crystal field interaction in RFe2Si2 (R=Er,Tm)', in 16th National Congress: Physics for the Nation, 16th National Congress: Physics for the Nation, Australian National University, Canberra, pp. 194 - 194, presented at 16th National Congress: Physics for the Nation, Australian National University, Canberra, 30 January - 04 February 2005

Jimenez E; Gubbens PC; Stewart GA; Harker S; Robinson D; Dalmas de Reotier P; Yaouanc A; Isasi J; Saez-Puche R, (eds.), 2005, 'Magnetic and structural properties of thulium chromate', in International Conference on Neutron Scattering ICNS2005, ICNS 2005: 8th International Conference on Neutron Scattering ICNS 2005, Sydney, pp. 107 - 107, presented at ICNS 2005: 8th International Conference on Neutron Scattering ICNS 2005, Sydney, 27 November - 02 December 2005

Stewart GA; Harker S; Mcpherson IM; Edge AV, 2005, 'An Alternative Interpretation of Mossbauer Spectra for 57Fe-doped Lanthanum Calcum Manganite', in 16th National Congress: Physics for the Nation, 16th National Congress: Physics for the Nation, Australian National University, Canberra, presented at 16th National Congress: Physics for the Nation, Australian National University, Canberra, 30 January - 04 February 2005

Hutchison WD; Chaplin DH; Harker S; Bowden GJ, 2001, 'An NMRON Study of Magnetically ordered (166mHo) HoF3', in 12th International Conference on Hyperfine Interactions, 12th International Conference on Hyperfine Interactions, pp. 1 - 1, presented at 12th International Conference on Hyperfine Interactions, 12 - 17 August 2001

Harker S; Hutchison WD; Chaplin DH; Bowden GJ, 2000, 'New approach to thermally orient nuclei in antiferromagnetic insulators', in WAGGA '97, 24th Annual Condensed Matter Physics Meeting of the Australian and New Zealand Institutes of Physics, Wagga Wagga, NSW, pp. WP23, presented at 24th Annual Condensed Matter Physics Meeting of the Australian and New Zealand Institutes of Physics, Wagga Wagga, NSW, 01 - 04 February 2000

Nishimura K; Hutchison WD; Chaplin DH; Harker S; Ohya S; Mori K; Isikawa Y, 2000, 'Nuclear orientation studies of magnetism in rare earth intermetallic alloys', in WAGGA '97, 24th Annual Condensed Matter Physics Meeting of the Australian and New Zealand Institutes of Physics, Wagga Wagga, NSW, pp. WP24, presented at 24th Annual Condensed Matter Physics Meeting of the Australian and New Zealand Institutes of Physics, Wagga Wagga, NSW, 01 - 04 February 2000

Mcpherson IM; Harker S; Stewart GA; Edge AV; Chaplin DH; Strecker M; Wortmann G, 2000, 'An overview of Mossbauer investigations for some perovskite manganites R2/3A1/3MnO3 (R=La,Gd,Tm; A-Ca,Sr,Ba)', in WAGGA '97, 24th Annual Condensed Matter Physics Meeting of the Australian and New Zealand Institutes of Physics, Wagga Wagga, NSW, pp. FM5, presented at 24th Annual Condensed Matter Physics Meeting of the Australian and New Zealand Institutes of Physics, Wagga Wagga, NSW, 01 - 04 February 2000

Chaplin DH; Harker S; Hutchison WD, 2000, 'NMRON on a mixed halide antiferromagnet (54Mn)Mn(Cl0.6Br0.4)2.4H2O)', in 14th National Congress of the Australian Institute of Physics, 14th National Congress of the Australian Institute of Physics, Adelaide, Sth Aust, pp. MT10, presented at 14th National Congress of the Australian Institute of Physics, Adelaide, Sth Aust, 10 - 15 December 2000

Stewart GA; Hutchison WD; Harker S; Chaplin DH, 2000, 'Mossbauer detection of nuclear magnetic resonance at millikelvin temperatures', in 14th National Congress of the Australian Institute of Physics, 14th National Congress of the Australian Institute of Physics, Adelaide, Sth Aust, pp. MT13, presented at 14th National Congress of the Australian Institute of Physics, Adelaide, Sth Aust, 10 - 15 December 2000

Hutchison WD; Prandolini MJ; Harker S; Chaplin DH; Bowden BF; Bleaney B, (eds.), 1999, 'NMR of YbVO4 Thermally Detected by Nuclear Orientation', in 23rd Annual Condensed Matter Physics Meeting, 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, pp. WA4, presented at 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, 02 - 05 February 1999

Nishimura K; Mori K; Ohya S; Muto S; Hutchison WD; Harker S; Chaplin DH, (eds.), 1999, 'Magnetic Anisotropy of Pm Impurities Pr0.5Nd0.5Ni', in 23rd Annual Condensed Matter Physics Meeting, 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, pp. TP2, presented at 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, 02 - 05 February 1999

Mcpherson IM; Harker S; Stewart GA; Edge AV; Unknown, (eds.), 1999, 'Spin Fluctuations in the Colossal Magnetoresistance manganite La2/3Ca1/3MnO3', in 23rd Annual Condensed Matter Physics Meeting, 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, pp. TP1, presented at 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, 02 - 05 February 1999

Mcpherson IM; Harker S; Stewart GA; Edge AV; Unknown, (ed.), 1999, 'On probing the colossal magnetoresistance material La2/3Ca1/3MnO3 with a dilute concentration of 57Fe', in International Conference on the Applications of the Mossbauer Effect (ICAME 99), International Conference on the Applications of the Mössbauer Effect (ICAME 99), Garmisch-Partenkirchen, Germany, pp. T7/23, presented at International Conference on the Applications of the Mössbauer Effect (ICAME 99), Garmisch-Partenkirchen, Germany, 29 August - 03 September 1999

Bowden GJ; Hutchison WD; Chaplin DH; Prandolini MJ; Harker S; Bleaney B, (eds.), 1999, 'NMR of YbVO4 thermally detected by nuclear orientation', in 23rd Annual Condensed Matter Physics Meeting, 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, pp. WA4 - WA4, presented at 23rd Annual Condensed Matter Physics Meeting, Charles Sturt University, Wagga Wagga, 02 - 05 February 1999