Search Results - "Wills, A. S."

Magnetic and Crystallographic Studies of Mg-Herbertsmithite, γ-Cu3Mg(OH)6Cl2A New S = 1/2 Kagome Magnet and Candidate Spin Liquid by Colman, R. H, Sinclair, A, Wills, A. S

“…Studies are presented of the synthesis, crystal structure, and magnetic properties of the new quantum kagome magnet Mg-herbertsmithite, γ-Cu3Mg(OH)6Cl2. The…”
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Low-Temperature Structure and Magnetic Properties of the Spinel LiMn2O4:  A Frustrated Antiferromagnet and Cathode Material by Wills, A. S, Raju, N. P, Greedan, J. E

“…Powder neutron diffraction has been used to study the nature of the structural transition away from the Fd3m cubic structure upon cooling below ∼285 K in the…”
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Generation of Basis Vectors for Magnetic Structures and Displacement Modes by Davies, Z. L., Wills, A. S.

“…Increasing attention is being focused on the use of symmetry-adapted functions to describe magnetic structures, structural distortions, and incommensurate…”
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Anomalous Hall Effect in Geometrically Frustrated Magnets by Boldrin, D., Wills, A. S.

“…Geometrically frustrated conducting magnets display extraordinarily large anomalous Hall effects (AHEs) that could be used to realise materials required for…”
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Vesignieite: An S=12 Kagome Antiferromagnet with Dominant Third-Neighbor Exchange by Boldrin, D, Fåk, B, Canévet, E, Ollivier, J, Walker, H C, Manuel, P, Khalyavin, D Khalyavin, Wills, A S

“…The spin-12 kagome antiferromagnet is an archetypal frustrated system predicted to host a variety of exotic magnetic states. We show using neutron scattering…”
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Dzyaloshinsky-Moriya interaction in vesignieite: A route to freezing in a quantum kagome antiferromagnet by Zorko, A., Bert, F., Ozarowski, A., van Tol, J., Boldrin, D., Wills, A. S., Mendels, P.

“…We report an electron-spin-resonance investigation of the geometrically frustrated spin-1/2 kagome antiferromagnet vesignieite, BaCu sub(3) V sub(2) O sub(8)…”
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Kapellasite: a kagome quantum spin liquid with competing interactions by 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

“…Magnetic susceptibility, NMR, muon spin relaxation, and inelastic neutron scattering measurements show that kapellasite, Cu3Zn(OH)6Cl2, a geometrically…”
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Haydeeite: A spin- 1 2 kagome ferromagnet by Boldrin, D., Fåk, B., Enderle, M., Bieri, S., Ollivier, J., Rols, S., Manuel, P., Wills, A. S.

“…The mineral haydeeite, [alpha]-MgCu sub(3)(OD) sub(6)Cl sub(2), is a S = 1/2 kagome ferromagnet that displays long-range magnetic order below T sub()C= 4.2 K…”
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Vesignieite: An S=1/2 Kagome Antiferromagnet with Dominant Third-Neighbor Exchange by Boldrin, D, Fåk, B, Canévet, E, Ollivier, J, Walker, H C, Manuel, P, Khalyavin, D D, Wills, A S

“…The spin-1/2 kagome antiferromagnet is an archetypal frustrated system predicted to host a variety of exotic magnetic states. We show using neutron scattering…”
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Structure and Magnetism in λ-MnO2. Geometric Frustration in a Defect Spinel by Greedan, J. E, Raju, N. P, Wills, A. S, Morin, C, Shaw, S. M, Reimers, J. N

“…λ-MnO2, a metastable form of manganese dioxide, retains the cubic spinel structure upon lithium removal from LiMn2O4 by soft chemical methods, either…”
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Two-Dimensional Short-Range Magnetic Order in the Tetragonal Spinel Li2Mn2O4 by Wills, A. S, Raju, N. P, Morin, C, Greedan, J. E

“…Metastable, tetragonal Li2Mn2O4, prepared by chemical insertion of Li into the cubic spinel, LiMn2O4, was studied by dc magnetic susceptibility and neutron…”
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Magnetic ordering in the spin-ice candidate Ho2Ru2O7 by WIEBE, C. R, GARDNER, J. S, KIM, S.-J, LUKE, G. M, WILLS, A. S, GAULIN, B. D, GREEDAN, J. E, SWAINSON, I, QIU, Y, JONES, C. Y

“…Neutron scattering measurements on the spin-ice candidate material Ho2Ru2O7 have revealed two magnetic transitions at T approximately 95 and approximately 1.4…”
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Magnetic ground state of Kagomé systems: the example of the jarosites compounds by Ballou, R., Canals, B., Elhajal, M., Lacroix, C., Wills, A. S.

“…Localized spins on the Kagomé lattice remain disordered if only nearest neighbor exchange is considered. We study two different mechanisms which induce…”
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Symmetry analysis of the interplay between local moment anisotropies and propagation vectors in the borocarbides by Wills, A. S., Detlefs, C., Canfield, P. C.

“…Representational analysis is used to examine the interplay between Fermi surface nesting and local moment effects in the formation of the magnetically ordered…”
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A new protocol for the determination of magnetic structures using simulated annealing and representational analysis (SARA h) by Wills, A.S

“…The determination of magnetic structures from neutron diffraction data is often carried out by trial and error. Much time is wasted in the examination of…”
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Pb3TeCo3V2O14: A Potential Multiferroic Co Bearing Member of the Dugganite Series by 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

“…Polycrystalline Pb3TeCo3V2O14, a structural analogue of the multiferroic Ba3NbFe3Si2O14, was synthesized and characterized using X-ray diffraction, magnetic…”
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Toward Perfection: Kapellasite, Cu3Zn(OH)6Cl2, a New Model S = 1/2 Kagome Antiferromagnet by Colman, R. H, Ritter, C, Wills, A. S

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General refinement strategy for magnetic structures using spherical neutron polarimetry and representation analysis by Poole, A., Lelièvre-Berna, E., Wills, A.S.

“…Spherical neutron polarimetry (SNP) is a powerful technique for the determination of magnetic structures which may otherwise be intractable. The complexity of…”
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Magnetically ordered and kagome quantum spin liquid states in the Zn-doped claringbullite series by Georgopoulou, M, Fåk, B, Boldrin, D, Stewart, J. R, Ritter, C, Suard, E, Ollivier, J, Wills, A. S

“…Neutron scattering measurements have been performed on deuterated powder samples of claringbullite and Zn-doped claringbullite (Zn$_x$Cu$_{4-x}$(OD)$_{6}$FCl)…”
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Importance and strength of environmental controllers of soil organic carbon changes with scale by Adhikari, K., Mishra, U., Owens, P.R., Libohova, Z., Wills, S.A., Riley, W.J., Hoffman, F.M., Smith, D.R.

“…[Display omitted] •Scaling property of soil organic carbon (SOC) was investigated across the conterminous United States.•Predicted SOC mean and variance…”
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