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Evidence for $J_{\rm eff} = 0$ ground state and defect-induced spin glass behaviour in the pyrochlore osmate Y$_{2}$Os$_{2}$O$_{7}$

Autor: Davies, N. R., Topping, C. V., Jacobsen, H., Princep, A. J., Kirschner, F. K. K., Rahn, M. C., Bristow, M., Vale, J. G., da Silva, I., Baker, P. J., Sahle, Ch. J., Guo, Y. -F., Yan, D. -Y., Shi, Y. -G., Blundell, S. J., McMorrow, D. F., Boothroyd, A. T.

Publikováno v: Phys. Rev. B 99, 174442 (2019)

We present AC and DC magnetometry, heat capacity, muon spin relaxation ($\mu$SR) and resonant inelastic X-ray scattering (RIXS) studies of the pyrochlore osmate Y$_2$Os$_2$O$_7$. We observe a non-zero effective moment governed by $\sqrt{f}\mu_{\rm{ef

Externí odkaz: http://arxiv.org/abs/1808.01530

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Multigap superconductivity in RbCa2Fe4As4F2 investigated using muSR measurements

Autor: Adroja, D. T, Kirschner, F. K. K., Lang, F., Smidman, M., Hillier, A. D., Wang, Zhi-Cheng, Cao, Guang-Han, Stenning, G. B. G., Blundell, S. J.

Publikováno v: J. Phys. Soc. Jpn. 87, 124705 (2018)

The superconducting properties of the recently discovered double Fe$_2$As$_2$ layered high-$T_c$ superconductor RbCa$_2$Fe$_4$As$_4$F$_2$ with $T_c\approx$ 30~K have been investigated using magnetization, heat capacity, transverse-field (TF) and zero

Externí odkaz: http://arxiv.org/abs/1802.07334

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Nodal multigap superconductivity in KCa$_2$Fe$_4$As$_4$F$_2$

Autor: Smidman, M., Kirschner, F. K. K., Adroja, D. T., Hillier, A. D., Lang, F., Wang, Z. C., Cao, G. H., Blundell, S. J.

Publikováno v: Phys. Rev. B 97, 060509 (2018)

We find evidence that the newly discovered Fe-based superconductor KCa$_2$Fe$_4$As$_4$F$_2$ ($T_c~=~33.36(7)$~K) displays multigap superconductivity with line nodes. Transverse field muon spin rotation ($\mu$SR) measurements show that the temperature

Externí odkaz: http://arxiv.org/abs/1711.10139

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Coexistence of magnetism and superconductivity in separate layers of the iron-based superconductor Li_{1-x}Fe_{x}(OH)Fe_{1-y}Se

Autor: Topping, C. V., Kirschner, F. K. K., Blundell, S. J., Baker, P. J., Woodruff, D. N., Schild, F., Sun, H., Clarke, S. J.

The magnetic properties attributed to the hydroxide layer of Li1-xFex(OH)Fe1-ySe have been elucidated by the study of superconducting and nonsuperconducting members of this family. Both ac magnetometry and muon spin relaxation measurements of nonsupe

Externí odkaz: http://arxiv.org/abs/1704.01492

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Akademický článek

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Evidence for a Jeff=0 ground state and defect-induced spin glass behavior in the pyrochlore osmate Y2Os2O7

Autor: Davies, N, Topping, C, Jacobsen, H, Princep, A, Kirschner, F, Rahn, M, Bristow, M, Vale, J, Da Silva, I, Baker, P, Sahle, C, Guo, Y, Yan, D, Shi, Y, Blundell, S, McMorrow, D, Boothroyd, A

Publikováno v: Physical Review B. 99(17)

We present AC and DC magnetometry, heat capacity, muon spin relaxation (μSR), and resonant inelastic x-ray scattering (RIXS) studies of the pyrochlore osmate Y2Os2O7. Consistent with previous results, we observe a small Curie-Weiss effective moment

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f13a32f83bd8c5bfb3745dd308761f14
http://ora.ox.ac.uk/objects/uuid:

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Computational and experimental studies of exotic magnets and superconductors

Autor: Kirschner, F

The advent of metalworking during the bronze age marked a transition in humankind’s relationship with materials: instead of materials existing only as they were found in nature, one could now manipulate their physical properties to make them fit fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1064::368d1358a4d3b003b994c10f07585efd
https://ora.ox.ac.uk/objects/uuid:3f8c4cf3-43a2-4c97-be52-7ad3b3ac1b4c

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Effects of group experience and information distribution on collaborative learning

Autor: Zambrano, J. (Jimmy), Kirschner, F. (Femke), Sweller, J. (John), Kirschner, P. A. (Paul A.)

Collaborative learning is a widely used instructional technique, but factors determining its effectiveness still are unclear. Cognitive load theory was used to examine the effects of prior collaborative experience and density of distribution of infor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2423::0e6acbf63d7708d2661cf89d8a62e36c
http://urn.fi/urn:nbn:fi-fe202002256478

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