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Position-dependent stability and lifetime of the skyrmion state in nickel-substituted Cu2OSeO3 (2020)
Journal Article
Crisanti, M., Birch, M., Wilson, M., Moody, S., Štefančič, A., Huddart, B., Cabeza, S., Balakrishnan, G., Hatton, P., & Cubitt, R. (2020). Position-dependent stability and lifetime of the skyrmion state in nickel-substituted Cu2OSeO3. Physical Review B, 102(22), Article 224407. https://doi.org/10.1103/physrevb.102.224407

We report spatially resolved small-angle neutron-scattering measurements of the conical and skyrmion states of a bulk single crystal of nickel-substituted Cu2OSeO3, with a nominal concentration of Ni of 14%. We observe a significant spatial dependenc... Read More about Position-dependent stability and lifetime of the skyrmion state in nickel-substituted Cu2OSeO3.

Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange (2020)
Journal Article
Xiao, F., Blackmore, W., Huddart, B., Gomilšek, M., Hicken, T., Baines, C., Baker, P., Pratt, F., Blundell, S., Lu, H., Singleton, J., Gawryluk, D., Turnbull, M., Krämer, K., Goddard, P., & Lancaster, T. (2020). Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange. Physical Review B, 102(17), Article 174429. https://doi.org/10.1103/physrevb.102.174429

We present an investigation of the effect of randomizing exchange coupling strengths in the S = 1/2 square lattice quasi-two-dimensional quantum Heisenberg antiferromagnet (QHAF) (QuinH)2Cu(ClxBr1−x )4 · 2H2O (QuinH = Quinolinium, C9H8N+), with 0 x 1... Read More about Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange.

From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets (2020)
Journal Article
Tustain, K., Ward-O’Brien, B., Bert, F., Han, T., Luetkens, H., Lancaster, T., Huddart, B. M., Baker, P. J., & Clark, L. (2020). From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets. npj Quantum Materials, 5(1), Article 74. https://doi.org/10.1038/s41535-020-00276-4

We report a comprehensive muon spectroscopy study of the Zn-barlowite series of S=12 kagomé antiferromagnets, ZnxCu4−x(OH)6FBr, for x = 0.00 to 0.99(1). By combining muon spin relaxation and rotation measurements with state-of-the-art density-functio... Read More about From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets.

Magnetism and Néel skyrmion dynamics in GaV4S8−ySey (2020)
Journal Article
Hicken, T., Holt, S., Franke, K., Hawkhead, Z., Štefančič, A., Wilson, M., Gomilšek, M., Huddart, B., Clark, S., Lees, M., Pratt, F., Blundell, S., Balakrishnan, G., & Lancaster, T. (2020). Magnetism and Néel skyrmion dynamics in GaV4S8−ySey. Physical Review Research, 2(3), Article 032001. https://doi.org/10.1103/physrevresearch.2.032001

We present an investigation of the influence of low levels of chemical substitution on the magnetic ground state and Néel skyrmion lattice (SkL) state in GaV4S8−ySey, where y=0,0.1,7.9, and 8. Muon-spin spectroscopy (μSR) measurements on y=0 and 0.1... Read More about Magnetism and Néel skyrmion dynamics in GaV4S8−ySey.

Near-ideal molecule-based Haldane spin chain (2020)
Journal Article
Williams, R. C., Blackmore, W. J., Curley, S. P., Lees, M. R., Birnbaum, S. M., Singleton, J., Huddart, B. M., Hicken, T. J., Lancaster, T., Blundell, S. J., Xiao, F., Ozarowski, A., Pratt, F. L., Voneshen, D. J., Guguchia, Z., Baines, C., Schlueter, J. A., Villa, D. Y., Manson, J. L., & Goddard, P. A. (2020). Near-ideal molecule-based Haldane spin chain. Physical Review Research, 2(1), Article 013082. https://doi.org/10.1103/physrevresearch.2.013082

The molecular coordination complex NiI2 (3, 5-lut)4 [where (3,5-lut) = (3,5-lutidine) = (C7H9N)] has been synthesized and characterized by several techniques including synchrotron x-ray diffraction, electron-spin resonance, superconducting quantum in... Read More about Near-ideal molecule-based Haldane spin chain.

Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets (2020)
Journal Article
Manson, J. L., Manson, Z. E., Sargent, A., Villa, D. Y., Etten, N. L., Blackmore, W. J., Curley, S. P., Williams, R. C., Brambleby, J., Goddard, P. A., Ozarowski, A., Wilson, M. N., Huddart, B. M., Lancaster, T., Johnson, R. D., Blundell, S. J., Bendix, J., Wheeler, K. A., Lapidus, S. H., Xiao, F., …Singleton, J. (2020). Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets. Polyhedron, 180, Article 114379. https://doi.org/10.1016/j.poly.2020.114379

We examine the crystal structures and magnetic properties of several S = 1 Ni(II) coordination compounds, molecules and polymers, that include the bridging ligands HF2-, AF62- (A = Ti, Zr) and pyrazine or non-bridging ligands F-, SiF62-, glycine, H2O... Read More about Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets.