Dr Andrew S. Wills - Publications

    2014

    • Kermarrec, E., Zorko, A., Bert, F., Colman, R. H., Koteswararao, B., Bouquet, F., Bonville, P., Hillier, A., Amato, A., Tol, J. V., Ozarowski, A., Wills, A. S., Mendels, P. (2014). Spin dynamics and disorder effects in the S=1/2 kagome Heisenberg spin liquid phase of kapellasite. Author URL
    • McCabe, E. E., Stock, C., Rodriguez, E. E., Wills, A. S., Taylor, J. W., Evans, J. S. O. (2014). Weak spin interactions in Mott insulating la 2 O 2 Fe 2 OSe 2. Author URL
    • McCabe, E. E., Wills, A. S., Chapon, L., Manuel, P., Evans, J. S. O. (2014). Structural and magnetic characterization of iron oxyselenides Ce2O2Fe2OSe2 and Nd2O2Fe2OSe2. Phys. Rev. B 90, 165111- Author URL

    2013

    • Bernu, B., Lhuillier, C., Kermarrec, E., Bert, F., Mendels, P., Colman, R. H., Wills, A. S. (2013). Exchange energies of kapellasite from high-temperature series analysis of the kagome lattice J-J-J-Heisenberg model. Physical Review B - Condensed Matter and Materials Physics 87(15) doi:10.1103/PhysRevB.87.155107.
    • Gercsi, Z., Delczeg-Czirjak, E. K., Vitos, L., Wills, A. S., Daoud-Aladine, A., Sandeman, K. G. (2013). Magnetoelastic effects in doped Fe2P. Phys. Rev. B 88, 024417- doi:10.1103/PhysRevB.88.024417. Author URL Publisher URL
    • Zorko, A., Bert, F., Ozarowski, A., Tol, J. V., Boldrin, D., Wills, A. S., Mendels, P. (2013). Dzyaloshinsky-Moriya interaction in vesignieite: A route to freezing in a quantum kagome antiferromagnet. Phys. Rev. B 88, 144419- doi:10.1103/PhysRevB.88.144419. Author URL Publisher URL

    2012

    • Boldrin, D., Wills, A. S. (2012). Anomalous hall effect in geometrically frustrated magnets. Advances in Condensed Matter Physics 2012 doi:10.1155/2012/615295.
    • Fåk, B., Kermarrec, E., Messio, L., Bernu, B., Lhuillier, C., Bert, F., Mendels, P., Koteswararao, B., Bouquet, F., Ollivier, J., Hillier, A. D., Amato, A., Colman, R. H., Wills, A. S. (2012). Kapellasite: A kagome quantum spin liquid with competing interactions. Phys. Rev. Lett. 109, 037208- Author URL
    • Hunt, S. A., Davies, D. R., Walker, A. M., McCormack, R. J., Wills, A. S., Dobson, D. P., Li, L. (2012). On the increase in thermal diffusivity caused by the perovskite to post-perovskite phase transition and its implications for mantle dynamics. Earth and Planetary Science Letters 319-320, 96-103
    • Silverstein, H. J., Cruz-Kan, K., Hallas, A. M., Zhou, H. D., Donaberger, R. L., Hernden, B. C., Bieringer, M., Choi, E. S., Hwang, J. M., Wills, A. S., Wiebe, C. R. (2012). Pb 3TeCo 3V 2O 14: A potential multiferroic Co bearing member of the dugganite series. Chemistry of Materials 24(4), 664-670
    • Stewart, J. R., Ehlers, G., Wills, A. S., Bramwell, S. T., Gardner, J. S. (2012). Comment on "magnetic structure of Gd Ti O ". Physical Review B - Condensed Matter and Materials Physics 85(10) doi:10.1103/PhysRevB.85.106401.

    2011

    • Colman, R. H., Bert, F., Boldrin, D., Hillier, A. D., Chapon, L. C., Manuel, P., Mendels, P., Wills, A. S. (2011). Spin dynamics in the S=1/2 quantum kagome compound vesignieite, Cu3Ba(VO5H)(2). Author URL
    • Colman, R. H., Sinclair, A., Wills, A. S. (2011). Magnetic and Crystallographic Studies of Mg-Herbertsmithite, gamma-Cu3Mg(OH)(6)Cl-2-A New S=1/2 Kagome Magnet and Candidate Spin Liquid. CHEM MATER 23(7), 1811-1817 doi:10.1021/cm103160q.
    • Hunt, S. A., Walker, A. M., McCormack, R. J., Dobson, D. P., Wills, A. S., Li, L. (2011). The effect of pressure on thermal diffusivity in pyroxenes. MINERAL MAG 75(5), 2597-2610 doi:10.1180/minmag.2011.075.5.2597.
    • Kermarrec, E., Mendels, P., Bert, F., Colman, R. H., Wills, A. S., Strobel, P., Bonville, P., Hillier, A., Amato, A. (2011). Spin-liquid ground state in the frustrated kagome antiferromagnet MgCu3(OH)(6)Cl-2. Phys. Rev. B 84, 100401- doi:10.1103/PhysRevB.84.100401. Author URL Publisher URL
    • Kida, T., Fenner, L. A., Dee, A. A., Terasaki, I., Hagiwara, M., Wills, A. S. (2011). The giant anomalous Hall effect in the ferromagnet Fe3Sn2-a frustrated kagome metal. J PHYS-CONDENS MAT 23(11), 112205 doi:10.1088/0953-8984/23/11/112205.
    • Quilliam, J. A., Bert, F., Colman, R. H., Boldrin, D., Wills, A. S., Mendels, P. (2011). Ground state and intrinsic susceptibility of the kagome antiferromagnet vesignieite as seen by V-51 NMR. Phys. Rev. B 84, 180401- Author URL
    • WILLS, A. (2011). Review of: Elementary scattering theory: for x-ray and neutron users, by Devinder Sivia. - Publisher URL .
    • Wills, A. S., Bisson, W. G. (2011). Elemental analysis and magnetism of hydronium jarosites-model kagome antiferromagnets and topological spin glasses. J PHYS-CONDENS MAT 23(16), 164206 doi:10.1088/0953-8984/23/16/164206.

    2010

    • Colman, R. H., Sinclair, A., Wills, A. S. (2010). Comparisons between Haydeeite, alpha-Cu3Mg(OD)(6)Cl-2, and Kapellasite, alpha-Cu3Zn(OD)(6)Cl-2, Isostructural S=1/2 Kagome Magnets. CHEM MATER 22(20), 5774-5779 doi:10.1021/cm101594c.
    • Lelievre-Berna, E., Wills, A. S., Bourgeat-Lami, E., Dee, A., Hansen, T., Henry, P., Poole, A., Thomas, M., Tonon, X., Torregrossa, J., Andersen, K. H., Bordenave, F., Jullien, D., Mouveau, P., Guerard, B., Manzin, G. (2010). Powder diffraction with spin polarized neutrons. Measurements Science and Technology 21, 055106 doi:10.1088/0957-0233/21/5/055106.

    2009

    • Axelsson, A. K., Valant, M., Fenner, L., Wills, A. S., Alford, N. M. (2009). Chemistry of post-annealing of epitaxial CoFe2O4 thin films. Thin Solid Films 517, 3742-3747 doi:10.1016/j.tsf.2009.01.142. Author URL
    • Colman, R. H., Wills, A. S., Fennell, T., Cava, R. J. (2009). Low temperature magnetic structure of the quasi 1-dimensional magnet Ni2SiO4. Journal of Physics: Conference Series 145, 012037- doi:10.1088/1742-6596/145/1/012037.
    • Davies, Z. L., Poole, A., Wills, A. S. (2009). Significance of phase difference in magnetism and the magneto-electric effect. Journal of Physics: Conference Series 145, 012072- doi:10.1088/1742-6596/145/1/012072.
    • Fenner, L. A., Dee, A. A., Wills, A. S. (2009). Non-collinearity and spin frustration in the itinerant kagome ferromagnet Fe3Sn2. Journal of Physics: Condensed Matter 21, 452202- doi:10.1088/0953-8984/21/45/452202. Author URL
    • Fenner, L. A., Wills, A. S., Bramwell, S. T., Dahlberg, M., Schiffer, P. (2009). Zero-point entropy of the spinel spin glasses CuGa2O4 and CuAl2O4. Journal of Physics: Conference Series 145, 012029- doi:10.1088/1742-6596/145/1/012029.
    • Kida, T., Fenner, L., Wills, A. S., Terasaki, I., Hagiwara, M. (2009). Giant anomalous Hall resistivity of the room temperature ferromagnet Fe3Sn2 - a frustrated metal with the kagome-bilayer structure. J. Phys.: Condens. Matter 23, 112205- doi:10.1088/0953-8984/23/11/112205. Author URL Publisher URL
    • King, G., Wills, A. S., Woodward, P. M. (2009). Magnetic structures of NaLMnWO6 perovskites (L=La,Nd,Tb). Physical Review B 79, 224428- doi:10.1103/PhysRevB.79.224428.
    • Petrenko, O. A., Balakrishnan, G., Paul, D. M., Yethiraj, M., McIntyre, G. J., Wills, A. S. (2009). Field induced magnetic order in the frustrated magnet Gadolinium Gallium Garnet. Journal of Physics: Conference Series 145, 012026- doi:10.1088/1742-6596/145/1/012026.
    • Poole, A., Brown, P. J., Wills, A. S. (2009). Spherical neutron polarimetry (SNP) study of magneto-electric coupling in the multiferroic MnWO4. Journal of Physics: Conference Series 145, 012074- doi:10.1088/1742-6596/145/1/012074.
    • Poole, A., Lelièvre-Berna, E., Wills, A. S. (2009). General refinement strategy for magnetic structures using spherical neutron polarimetry and representation analysis. Physica B 404, 2535- doi:10.1016/j.physb.2009.06.015. Author URL
    • Wills, A. S., Perring, T. G., Raymond, S., Fak, B., Henry, J. -. Y., Telling, M. (2009). Inelastic neutron scattering studies of the quantum frustrated magnet clinoatacamite, γ-Cu2(OD)3Cl, a proposed valence bond solid (VBS) journal series. Journal of Physics: Conference Series 145, 012056- Author URL
    • Wills, A. S., Perring, T. G., Raymond, S., Fak, B., Henry, J. Y., Telling, M. (2009). Inelastic neutron scattering studies of the quantum frustrated magnet clinoatacamite, gamma-Cu-2(OD)(3)Cl, a proposed valence bond solid (VBS). HIGHLY FRUSTRATED MAGNETISM 2008 (HFM 2008). ( Vol. 145 ). IOP PUBLISHING LTD.

    2008

    • Bisson, W. G., Wills, A. S. (2008). Anisotropy-driven spin glass transition in the kagome antiferromagnet hydronium jarosite, (H3O)Fe-3(SO4)(2)(OH)(6). Journal of Physics: Condensed Matter 20(45), 452204- doi:10.1088/0953-8984/20/45/452204.
    • Colman, R. H., Ritter, C., Wills, A. S. (2008). Toward Perfection: Kapellasite, Cu3Zn(OH)(6)Cl-2, a New Model S=1/2 Kagome Antiferromagnet. Chemistry of Materials 20(22), 6897-6899 doi:10.1021/cm802060n.
    • Davies, Z. L., Wills, A. S. (2008). A new verification of Kovalev's tables of irreducible representations of the space groups. Journal of Physics: Condensed Matter 20, 104232- doi:10.1088/0953-8984/20/10/104232.
    • Wills, A. S. (2008). Application of representation theory and SARAh to magnetic structure determination. Acta Cryst. A. ( Vol. 64 pp.C107-).
    • Wills, A. S. (2008). Chemical magnetism. UCL Science for schools and colleges , 7-
    • Wills, A. S., Davies, Z. (2008). Application of corepresentation theory to magnetic structures and displacive phase transitions. Acta Cryst. A. ( Vol. 64 pp.C617-).
    • Wills, A. S., Fenner, L., Bramwell, S. T., Dahlberg, M., Schiffer, P. (2008). Controlling spin glass entropy- Frustrated magnetism in the spinels. Acta Cryst. A. ( Vol. 64 pp.C152-).
    • Wills, A. S., Henry, J. -. Y. (2008). On the crystal and magnetic ordering structures of clinoatacamite, γ-Cu2(OD)3Cl, a proposed valence bond solid. Journal of Physics: Condensed Matter 20, 472206-
    • Wills, A. S., Henry, J. Y. (2008). On the crystal and magnetic ordering structures of clinoatacamite, gamma-Cu-2(OD)(3)Cl, a proposed valence bond solid. JOURNAL OF PHYSICS-CONDENSED MATTER. ( Vol. 20 ). IOP PUBLISHING LTD.

    2007

    • Bisson, W., Wills, A. S. (2007). Intermediate phase in the oxidative hydrothermal synthesis of potassium jarosite, a model kagome antiferromagnet. Zeitschrift für Kristallographie Supplements 2007(S26), 511-516 doi:10.1524/zksu.2007.2007.suppl_26.511.
    • Doyle, B. P., Carleschi, E., Magnano, E., Malvestuto, M., Dee, A., Wills, A. S., Janssen, Y., Canfield, P. C. (2007). Temperature-independent ytterbium valence in YbGaGe. Physical Review B 75, 235109-
    • Poole, A., Wills, A. S., Lelièvre-Berna, E. (2007). Magnetic ordering in the XY pyrochlore antiferromagnet Er2Ti2O7: a spherical neutron polarimetry study. Journal of Physics: Condensed Matter 19(45), 452201- doi:10.1088/0953-8984/19/45/452201.
    • Wills, A. S. (2007). Validation of magnetic structures. Z KRISTALLOGR , 53-58
    • Wills, A. S., Lelievre-Berna, E. (2007). Chemical Magnetism. ILL Brochure “Neutrons and Magnetism”

    2006

    • Bisson, W., Wills, A. S. (2006). The origin of the spin glass transition in a model geometrically frustrated magnet. Author URL
    • Bonville, P., Dupuis, V., Vincent, E., Lippens, P. E., Wills, A. S. (2006). 57Fe Mossbauer spectra and magnetic data in the kagome antiferromagnet H3O-jarosite. Hyperfine Interactions 168, 1085-
    • Bonville, P., Dupuis, V., Vincent, E., Lippens, P. E., Wills, A. S. (2006). Fe-57 Mossbauer spectra and magnetic data from the kagome antiferromagnet H3O-jarosite. HYPERFINE INTERACT 168(1-3), 1085-1089 doi:10.1007/s10751-006-9441-z.
    • Bridges, C. A., Hansen, T., Wills, A. S., Luke, G. M., Greedan, J. E. (2006). Frustrated magnetism and the effects of titanium substitution in the mixed-valence oxide BaV10-xTixO15. PHYS REV B 74(2), 024426 doi:10.1103/PhysRevB.74.024426.
    • Mole, R. A., Stride, J. A., Wills, A. S., Wood, P. T. (2006). Static and dynamic properties of Mn-2(OH)(2)(C4O4). Physica B: Condensed Matter 385, 435-
    • Stewart, J. R., Wills, A. S., Leavey, C. J., Rainford, B. D., Ritter, C. (2006). The magnetic structure of beta-MnRu. Journal of Physics: Condensed Matter 19, 145291-
    • Wills, A. S. (2006). Magnetism. In Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem. (102 ed. pp.469-481).
    • Wills, A. S., Zhitomirsky, M. E., Canals, B., Sanchez, J. P., Bonville, P., Dalmas de Reotier, Y., A, (2006). Magnetic ordering in Gd2Sn2O7: the archetypal Heisenberg pyrochlore antiferromagnet. Journal of Physics: Condensed Matter 18, L37-L42 doi:10.1088/0953-8984/18/3/L02.

    2005

    • Wills, A. S. (2005). Application of symmetry to magnetism and its consequences for crystallography. Acta Cryst. A. ( Vol. 61 pp.C22-).
    • Wills, A. S. (2005). Magnetic Rietveld and single crystal refinement with SARAh- Representational Analysis and SARAh-Refine. IUCr Commission on Computing Software Newsletter
    • Wills, A. S. (2005). Magnetism. In Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem. (101 ed. pp.472-488).
    • Wills, A. S. (2005). Symmetry in the solid state; working beyond the space group. J MATER CHEM 15, 245-253
    • Wills, A. S., LeLievre-Berna, E., Tasset, F., Schweitzer, J., Ballou, R., Ludi, A., Day, P. (2005). Spin transfer in Prussian Blue, measured using polarized neutron diffraction. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. ( Vol. 229 pp.U973-U973). AMER CHEMICAL SOC.

    2004

    • Parker, D. R., Green, M. A., Bramwell, S. T., Wills, A. S., Gardner, J. S., Neumann, D. A. (2004). Crossover from positive to negative magnetoresistance in a spinel. J AM CHEM SOC 126, 2710-2711
    • Stewart, J. R., Ehlers, G., Wills, A. S., Bramwell, S. T., Gardner, J. S. (2004). Phase transitions, partial disorder and multi-k structures in Gd2Ti2O7. Journal of Physics: Condensed Matter 16, L1-L6 doi:10.1088/0953-8984/16/28/L01.
    • Weibe, C. R., Kim, S. -. J., Luke, J. M., Gardner, J. S., Wills, A. S., Uemura, Y. J., Swainson, I., Qui, Y., Jones, C. (2004). Magnetic ordering in the spin-ice candidate Ho2Ru2O7. Physical Review Letters 93, 076403- doi:10.1103/PhysRevLett.93.076403.
    • Wills, A. S. (2004). Magnetism. In Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem. (100 ed. pp.509-523).
    • Wills, A. S., Lappas, A. (2004). The use of symmetry in the search for canted ferromagnetism, its application to the molecular magnets Mn[N(CN)(2)](2) and Fe[N(CN)(2)](2). J PHYS CHEM SOLIDS (65), 65-71
    • Wills, A. S., Lelievre-Berna, E. (2004). Animal Magnetism – neutrons reveal the magnetic sides of proteins. ILL Brochure “Neutrons and Magnetism” , 8-
    • Wills, A. S., Lelievre-Berna, E., Tasset, F., Schweizer, J., Ballou, R. (2004). Magnetisation distribution measurements from powders using a He-3 spin filter: a test experiment. Physica B: Condensed Matter 356, 254-
    • Wills, A. S., Raymond, S., Henry, J. Y. (2004). Magnetic ordering in a distorted S=1/2 pyrochlore antiferromagnet. J MAGN MAGN MAT 272-27, 850-851
    • Wills, A. S., Smith, A. M. L., Dubbin, W. E., Hudson-Edwards, K. A., Wright, K. (2004). Interlayer exchange in the plumbo-jarosites: kagome systems. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. ( Vol. 272-76 pp.1300-1301). ELSEVIER SCIENCE BV.
    • Wills, A. S., Smith, A. M. L., Dubbin, W. E., Hudson-Edwards, K. A., Wright, K. (2004). Magnetic properties of the plumbo-jarosites: interlayer exchange in model kagome systems. Journal of Magnetism and Magnetic Materials 272-276, 1300-

    2003

    • Ballou, R., Canals, B., Elhajal, M., Lacroix, C., Wills, A. S. (2003). Magnetic ground state of Kagome systems: the example of the jarosites compounds. Physica Status Solidi (B) (2), 240-245
    • Ballou, R., Canals, B., Elhajal, M., Lacroix, C., Wills, A. S. (2003). Models for ordering in the jarosites Kagome systems. Journal of Magnetism and Magnetic Materials 262, 465-471
    • Boehm, M., Roessli, B., Schefer, J., Wills, A. S., Ouladdiaf, B., LeliŠvre-Berna, E., Staub, U., Petrakovskii, G. A. (2003). Complex magnetic ground state of CuB2O4. Physical Review B 68, 024405-1
    • Champion, J. D. M., Harris, M. J., Holdsworth, P. C. W., Wills, A. S., Balakrishnan, G., Bramwell, S. T., Cizmar, E., Fennell, T., Gardner, J. S., Lago, J., McMorrow, D. F., Orendac, M., Orendacova, A., Paul, D., Smith, R. I., Telling, M. T. F., Wildes, A. (2003). Er2Ti207: Evidence of order by disorder in a frustrated quantum antiferromagnet. Physical Review B 68, 020401-020404
    • Champion, J. D. M., Harrus, M. J., Holdsworth, P. C. W., Wills, A. S., Balakrishnan, G., Bramwell, S. T., Cizmar, E., Fennell, T., Gardner, J. S., Lago, J., McMorrow, D. F., Orendac, M., Orendacova, A., Paul, D. M., Smith, R. I., Telling, M. T. F., Wildes, A. (2003). Er2Ti2O7: Evidence of quantum order by disorder in a frustrated antiferromagnet. Physical Review B 68(2)
    • Lappas, A., Wills, A. S., Green, M. A., Prassides, K., Kurmoo, M. (2003). Magnetic ordering in the rutile molecular magnets M-II[N(CN)(2)](2) (M=Ni, Co, Fe, Mn, Ni0.5Co0.5, and Ni0.5Fe0.5). Physical Review B 67(14), 144406-
    • Wills, A. S., Detlefs, C., Canfield, P. C. (2003). Symmetry analysis of the interplay between local moment anisotropies and propagation vectors in the borocarbides. PHILOS MAG 83(10), 1227-1234 doi:10.1080/1478643031000077702.

    2002

    • Wills, A. S., Ballou, R., Lacroix, C. (2002). Kagome spin ice. Author URL
    • Wills, A. S., Ballou, R., Lacroix, C. (2002). Model of localized highly frustrated ferromagnetism: The kagome spin ice. Physical Review B 66(14), art-144407

    2001

    • Champion, J. D. M., Wills, A. S., Fennell, T., Bramwell, S. T., Gardner, J. S., Green, M. A. (2001). Order in the Heisenberg pyrochlore: The magnetic structure of Gd2Ti2O7. Physical Review B 64(14), art- doi:10.1103/PhysRevB.64.140407.
    • Wills, A. S. (2001). Long-range ordering and representational analysis of the jarosites. Physical Review B 63, 064430- doi:10.1103/PhysRevB.63.064430.
    • Wills, A. S., Oakley, G. S., Visser, D., Frunzke, J., Harrison, A., Andersen, K. H. (2001). Short-range order in the topological spin glass (D3O)Fe-3(SO4)(2)(OD)(6) using xyz polarized neutron diffraction. PHYS REV B 6409(9), 094436
    • Wills, A. S., Oakley, G. S., Visser, D., Frunzke, J., Harrison, A., Andersen, K. H. (2001). Study of short-ranged order in the topological spin glass (D3O)Fe3(SO4)2(OD)6. Physical Review B 64, 094436-

    1999

    • Wills, A. S. (1999). SARAh- Representational Analysis. Author URL

    1998

    • Greedan, J. E., Raju, N. P., Wills, A. S., Morin, C., Shaw, S. M., Reimers, J. N. (1998). Structure and magnetism in lambda-MnO2. Geometric frustration in a defect spinel. CHEM MATER 10(10), 3058-3067