Publications from 1990-1999

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1999

• ``Neutron diffraction study of the magnetic structure of ErFe_11.5Ta_0.5'',
  J.M. Cadogan, D.H. Ryan, I.P. Swainson and R. Gagnon,
  J. Phys.: CM 11 (1999), 8975-80
  (201 k pdf file)

• ``Crystal structure and cation distributions in the FeTi₂O₅-Fe₂TiO₅ solid solution series'',
  W.Q. Guo, S. Malus, D.H. Ryan and Z. Altounian,
  J. Phys.: CM 11 (1999), 6337-46
  (346 k pdf file)

• ``Magnetism and structure of Fe/Cu multilayers studied by low-temperature conversion electron Mössbauer spectroscopy (LT-CEMS)''
  A.P. Kuprin, L. Cheng, D.W. Lee, Z. Altounian and D.H. Ryan,
  J. Appl. Phys. 85 (1999), 5738-40
  (74 k g-zipped postscript file)
  (67 k pdf file)

• ``Selective excitation double Mössbauer spectroscopy: In search of magnetic relaxation''
  J. van Lierop and D.H. Ryan,
  J. Appl. Phys. 85 (1999), 4518-20
  (104 k g-zipped postscript file)
  (67 k pdf file)

• ``Magnetic ordering in Re-doped a-Fe₉₀Zr₁₀ ''
  D.H. Ryan, Zin Tun and J.M. Cadogan,
  J. Appl. Phys. 85 (1999), 4506-8
  (109 k g-zipped postscript file)
  (90 k pdf file)

• ``Structural and magnetic properties of Cu/Fe multilayers''
  D.W. Lee, D.H. Ryan, Z. Altounian and A. Kuprin,
  Phys. Rev. B59 (1999), 7001-9
  (234 k g-zipped postscript file)
  (172 k pdf file)

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1998

• ``The magnetic structure of YFe₆Ge₆'',
  J.M. Cadogan, D.H. Ryan, I.P. Swainson and O. Moze,
  J. Phys.: CM 10 (1998), 5383-8
  (154 k pdf file)

• `` The Ferromagnet to Spin Glass Cross-Over: A Neutron Depolarisation Study'',
  D. H. Ryan, Zin Tun and J.M. Cadogan,
  J. Magn. Magn. Mater. 177-81 (1998), 57-62
  (121 k g-zipped postscript file)
  (332 k pdf file)

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1997

• ``The Easy Magnetisation Directions in R₆Fe₂₃ (R = Rare earth): A Crystal Field Analysis'',
  G.J. Bowden, J.M. Cadogan, H. de Leon and D.H. Ryan,
  J. Appl. Phys. 81 (1997), 4186-8
  (100 k pdf file)

• ``Ru-Induced Loss of Long-Range Magnetic Order in a-Fe_90-xRu_xZr₁₀'',
  D. H. Ryan, J.M. Cadogan and Zin Tun,
  J. Appl. Phys. 81 (1997), 4407-9
  (73 k g-zipped postscript file)
  (100 k pdf file)

• ``The Magnetisation Process in a Two-Phase Exchange-Coupled System: A Microscopic Study'',
  D. H. Ryan, E.H. Feutrill and J. Ding,
  J. Appl. Phys. 81 (1997), 4425-7
  (63 k g-zipped postscript file)
  (81 k pdf file)

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1996

• ``Neutron depolarisation study of magnetic order in a-Fe₉₀Sc₁₀D_x ( 0 < x < 28 )'',
  D. H. Ryan, J.M. Cadogan and S.J. Kennedy,
  J. Magn. Magn. Mater. 162 (1996), 55-9
  (31 k g-zipped postscript file [no figs])
  (480 k pdf file)

• ``Spin Fluctuations in an Amorphous Alloy''
  A.LeR. Dawson, D.H. Ryan and David V. Baxter,
  Phys. Rev. B54 (1996), 12238-44
  (161 k g-zipped postscript file)
  (150 k pdf file)

• ``Heat Capacity of Silver Paint''
  A.LeR. Dawson and D.H. Ryan,
  Rev. Sci. Instrum. 67 (1996), 2648-9
  (30 k g-zipped postscript file)
  (43 k pdf file)

• ``Neutron Depolarisation Study of Magnetic Order in a-Fe_xZr_100-x (x=90 - 93),
  a-Fe₉₀Sc₁₀ and Their Hydrides'',
  D.H. Ryan, J.M. Cadogan and S.J. Kennedy,
  J. Appl. Phys. 79 (1996), 6161-3
  (95 k pdf file)

• ``Observation of Independent Iron and Rare-Earth Ordering in RFe₆Ge₆ (R=Y, Gd - Lu) Compounds'',
  D. H. Ryan and J. M. Cadogan,
  J. Appl. Phys. 79 (1996), 6004-6
  (65 k pdf file)

• ``Magnetic ordering in the three-dimensional site-disordered Heisenberg model'',
  M. Nielsen, D.H. Ryan, H. Guo, and M. Zuckermann,
  Phys. Rev. B53 (1996), 343-9
  (174 k pdf file)

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1995

• ``In Situ Synthesis of Ferrites in Ionic and Neutral Cellulose Gels''
  L Raymond, J.-F. Revol, R.H. Marchessault and D.H. Ryan,
  Polymer 36 (1995), 5035-43

• ``Exchange Frustration and Transverse Spin Freezing in Amorphous Iron-Rich Metallic Glasses'',
  H. Ren and D.H. Ryan,
  Phys. Rev. B51 (1995), 15885-97
  (1774 k pdf file)

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1994

• ``Structural and Magnetic Properties of RFe₆Ge₆ (R = Y, Gd, Tb and Er) Compounds'',
  Y.B. Wang, D. Wiarda, J.M. Cadogan and D.H. Ryan,
  IEEE Trans. Mag. 30 (1994) 4951-3
  (223 k pdf file)

• ``Mössbauer Measurements of Spin Correlations in a-(Fe,Ni)₉₀Zr₉Sn''
  D. Wiarda and D.H. Ryan,
  J. Appl. Phys. 76 (1994), 6377-9
  (377 k pdf file)

• ``Magnetic Ordering in the Three-Dimensional Site Frustrated Heisenberg Model''
  M. Nielsen, D.H. Ryan, H. Guo and M. Zuckermann,
  J. Appl. Phys. 76 (1994), 6374-6
  (394 k pdf file)

• ``Relaxation and Spin Correlations in ¹¹⁹Sn-Doped a-Fe₉₀Sc₁₀''
  D. Wiarda and D.H. Ryan,
  J. Appl. Phys. 76 (1994), 6189-91
  (315 k pdf file)

• ``The Magnetic Properties of Interstitially Modified Nd₃(Fe,Ti)₂₉X_y Compounds (X = H, C and N)'',
  D.H. Ryan, J.M. Cadogan, A. Margarian and J.B. Dunlop,
  J. Appl. Phys. 76 (1994), 6150-2
  (314 k pdf file)

• ``New Rare-earth Intermetallic Phases R₃(Fe,M)₂₉X_n:
  R = Ce, Pr, Nd, Sm, Gd; M = Ti, V, Cr, Mn; and X = H, N, C)''
  J.M. Cadogan, Hong-Shuo Li, A. Margarian and J.B. Dunlop, D.H. Ryan, S.J. Collocott and R.L. Davies,
  J. Appl. Phys. 76 (1994), 6138-43
  (739 k pdf file)

• ``X-ray Structural Studies of Nitrogen Diffusion in Dy₂Fe₁₇''
  E. Girt, Z. Altounian, X. Chen, M. Mao, D.H. Ryan, M. Sutton and J.M. Cadogan,
  J. Appl. Phys. 76 (1994), 6038-40
  (320 k pdf file)

• ``Hydrogen Diffusion in Amorphous Ni-Nb'',
  Y. Zhao, D.H. Ryan, J.O. Ström-Olsen, Y. Huai and R.W. Cochrane,
  Z. Phys. Chem. 183 (1994), 59-64

• ``In situ Synthesis of Ferrites in Cellulosics'',
  Louise Raymond, J.-F. Revol, D.H. Ryan and R.H. Marchessault,
  Chem. Mater. 6 (1994), 249-55

• ``A Magnetocalorimetric Study of Spin Fluctuations in Amorphous a-Fe_xZr_100-x''
  A. LeR. Dawson and D.H. Ryan,
  J. Appl. Phys. 75 (1994), 6837-9
  (368 k pdf file)

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1993

• ``Mössbauer Studies of Rare-Earth Iron Carbides and Nitrides'',
  D.H. Ryan, X. Chen and Z. Altounian,
  J. Mater. Perf. and Eng. 2 (1993), 225-34

• ``Carbonitrides of R₂Fe₁₇ prepared by Gas-Solid Reaction'',
  X. Chen, Z. Altounian and D.H. Ryan,
  J. Magn. Magn. Mater. 125 (1993), 169-76

• ``Cobalt Site Preferences in Iron Rare-Earth-Based Compounds'',
  L.X. Liao, Z. Altounian and D.H. Ryan,
  Phys. Rev. B47 (1993), 11230-41
  (997 k pdf file)

• ``Mössbauer Study of Intercalation Modified Compounds R₂Fe₁₇ (R = Y, Sm)'',
  Z. Altounian, X. Chen, L.X. Liao, D.H. Ryan and J.O. Ström-Olsen,
  J. Appl. Phys. 73 (1993), 6038-40
  (398 k pdf file)

• ``Structure and Magnetic Properties of Rare-Earth Iron Nitrides, Carbides and Carbonitrides'',
  Z. Altounian, X. Chen, L.X. Liao, D.H. Ryan and J.O. Ström-Olsen,
  J. Appl. Phys. 73 (1993), 6017-22
  (828 k pdf file)

• ``A Single Magnetic Transition in a-Fe₉₀Sc₁₀'',
  Hong Ren and D.H. Ryan,
  J. Appl. Phys. 73 (1993), 5494-6
  (420 k pdf file)

• ``Transverse and Longitudinal Spin Correlations in a-Fe₉₂Zr₇Sn'',
  Hong Ren and D.H. Ryan,
  Phys. Rev. B47 (1993), 7919-24
  (524 k pdf file)

• ``A Simple Conversion Electron Detector for Mössbauer Source Experiments'',
  L.X. Liao, D.H. Ryan and Z. Altounian,
  Rev. Sci. Instrum. 64 (1993), 679-82
  (600 k pdf file)

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1992

• ``Magnetic Ordering in the Three-Dimensional Frustrated Heisenberg Model'',
  J.R. Thomson, H. Guo, D.H. Ryan, M.J. Zuckermann, and M. Grant,
  Phys. Rev. B45 (1992), 3129-32
  (344 k pdf file)

• ``Thermal relaxation in a frustrated ferromagnet'',
  A. LeR. Dawson and D.H. Ryan,
  Phys. Rev. B45 (1992), 1034-6
  (260 k pdf file)

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1991

• ``Mössbauer Determination of Cobalt Substitution in Iron-Based Intermetallics'',
  L.X. Liao, D.H. Ryan and Z. Altounian,
  J. Appl. Phys. 70 (1991), 6143-5
  (328 k pdf file)

• ``Structure and Magnetic Properties of RFe₁₁TiN_x (R = Y,Sm,Dy)'',
  L.X. Liao, Z. Altounian and D.H. Ryan,
  J. Appl. Phys. 70 (1991), 6006-8
  (274 k pdf file)

• ``Cluster Relaxation in Iron-Rich Amorphous FeZr Alloys Near T_c'',
  Hong Ren and D.H. Ryan,
  J. Appl. Phys. 70 (1991), 5837-9
  (384 k pdf file)

• ``Hyperfine Field Distributions and Transverse Spin Freezing in Iron-Rich Amorphous Fe-Zr Alloys'',
  D.H. Ryan and Hong Ren,
  J. Appl. Phys. 69 (1991), 5057-9
  (392 k pdf file)

• ``Monte Carlo Simulations of Transverse Spin Freezing in the Three-Dimensional Frustrated Heisenberg Model'',
  J.R. Thomson, Hong Guo, D.H. Ryan, M.J. Zuckermann, and M. Grant,
  J. Appl. Phys. 69 (1991), 5231-3
  (373 k pdf file)

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1990

• ``Stable and Metastable Phases in Nd-Fe Binary Alloys'',
  L.X. Liao, D.H. Ryan and Z. Altounian,
  Hyp. Int. 55 (1990), 1027-30

• ``Microscopic Origin of Reversible Relaxation in Metallic Glasses'',
  R. Brüning, D.H. Ryan and J.O. Ström-Olsen,
  Hyp. Int. 55 (1990), 917-20

• ``First Mössbauer Observation of the Glass Transition in an Amorphous Metal'',
  R. Brüning, D.H. Ryan and J.O. Ström-Olsen,
  Hyp. Int. 55 (1990), 911-5

• ``Pyrometric temperature controller for million degree per second heating'',
  S. Brauer, D. H. Ryan, J. O. Ström-Olsen, M. Sutton and G. B. Stephenson,
  Rev. Sci. Instrum. 61 (1990), 2214-9
  (861 k pdf file)

• ``The Spontaneous Resistive Anisotropy in Amorphous and Hydrogenated Fe-Zr'',
  H. Ma, Z. Wang, H.P. Kunkel, G. Williams and D.H. Ryan,
  J. Appl. Phys. 67 (1990), 5964-6

• ``Domain Structure in the Reentrant Fe_xZr_100-x amorphous ribbons'',
  S. Hadjoudj, S. Senoussi and D.H. Ryan,
  J. Appl. Phys. 67 (1990), 5958-60

• ``Formation of High Pressure Phases in Rapidly Quenched Fe-Nd Alloys'',
  L.X. Liao, Z. Altounian and D.H. Ryan,
  J. Appl. Phys. 67 (1990), 4821-3

• ``Direct determination of cobalt site preferences at infinite dilution in iron-based intermetallic compounds (invited)'',
  D.H. Ryan, Z. Altounian, L.X. Liao, J.O. Ström-Olsen and W.B. Muir,
  J. Appl. Phys. 67 (1990), 4742-6
  (832 k pdf file)

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