Zobrazeno 1 - 10
of 6 089
pro vyhledávání: '"P. Böni"'
Autor:
H. Lane, P. M. Sarte, K. Guratinder, A. M. Arevalo-Lopez, R. S. Perry, E. C. Hunter, T. Weber, B. Roessli, A. Stunault, Y. Su, R. A. Ewings, S. D. Wilson, P. Böni, J. P. Attfield, C. Stock
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043146 (2023)
MgV_{2}O_{4} is a spinel based on magnetic V^{3+} ions, which host both spin (S=1) and orbital (l_{eff}=1) moments. Owing to the underlying pyrochlore coordination of the magnetic sites, the spins in MgV_{2}O_{4} only antiferromagnetically order once
Externí odkaz:
https://doaj.org/article/27d0edcb437842e2b60fa8e7caa037d5
Autor:
McKay, S., de Haan, V. O., Leiner, J., Parnell, S. R., Dalgliesh, R. M., Boeni, P., Bannenberg, L. J., Thien, Q. Le, Baxter, D. V., Ortiz, G., Pynn, R.
The Goos-H\"anchen (GH) shift describes a phenomenon in which a specularly-reflected beam is laterally translated along the reflecting surface such that the incident and reflected rays no longer intersect at the surface. Using a neutron spin-echo tec
Externí odkaz:
http://arxiv.org/abs/2407.01190
Autor:
Lane, H., Sarte, P. M., Guratinder, K., Arevalo-Lopez, A. M., Perry, R. S., Hunter, E. C., Weber, T., Roessli, B., Stunault, A., Su, Y., Ewings, R. A., Wilson, S. D., Böni, P., Attfield, J. P., Stock, C.
Publikováno v:
Phys. Rev. Research 5, 043146 (2023)
MgV$_{2}$O$_{4}$ is a spinel based on magnetic V$^{3+}$ ions which host both spin ($S=1$) and orbital ($l_{eff}=1$) moments. Owing to the underlying pyrochlore coordination of the magnetic sites, the spins in MgV$_{2}$O$_{4}$ only antiferromagnetical
Externí odkaz:
http://arxiv.org/abs/2309.06853
Autor:
T. Weber, J. Waizner, G. S. Tucker, L. Beddrich, M. Skoulatos, R. Georgii, A. Bauer, C. Pfleiderer, M. Garst, P. Böni
Publikováno v:
AIP Advances, Vol 8, Iss 10, Pp 101328-101328-5 (2018)
Using two cold-neutron triple-axis spectrometers we have succeeded in fully mapping out the field-dependent evolution of the non-reciprocal magnon dispersion relations in all magnetic phases of MnSi. The non-reciprocal nature of the dispersion manife
Externí odkaz:
https://doaj.org/article/7b1c0db65b67462aa2a9f6decfec0ffc
Autor:
Säubert, Steffen, Franz, Christian, Jochum, Johanna K., Benka, Georg, Bauer, Andreas, Shapiro, Stephen M., Böni, Peter, Pfleiderer, Christian
In the iron--chromium system, Fe$_{x}$Cr$_{1-x}$, a wide dome of spin-glass behavior emerges when the ferromagnetism of iron is suppressed and the antiferromagnetism of chromium emerges as a function of increasing iron content $x$. As both, the high-
Externí odkaz:
http://arxiv.org/abs/2301.04495
Autor:
Weber, T., Fobes, D. M., Waizner, J., Steffens, P., Tucker, G. S., Böhm, M., Beddrich, L., Franz, C., Gabold, H., Bewley, R., Voneshen, D., Skoulatos, M., Georgii, R., Ehlers, G., Bauer, A., Pfleiderer, C., Böni, P., Janoschek, M., Garst, M.
Publikováno v:
Science 375, 1025 (2022)
The motion of a spin excitation across topologically non-trivial magnetic order exhibits a deflection that is analogous to the effect of the Lorentz force on an electrically charged particle in an orbital magnetic field. We used polarized inelastic n
Externí odkaz:
http://arxiv.org/abs/2203.08159
Neutron scattering is a well-established tool for the investigation of the static and dynamic properties of condensed matter systems over a wide range of spatial and temporal scales. Many studies of high interest, however, can only be performed on sm
Externí odkaz:
http://arxiv.org/abs/2202.07899
Nanoscale structure determination belongs to one of the crucial tasks in materials science. Small-angle neutron scattering (SANS) is a highly valuable tool to investigate nanostructures. Here, we explore the possibility of a compact SANS instrument t
Externí odkaz:
http://arxiv.org/abs/2201.12930
Autor:
Ketels, Josef, Leitner, Michael, Böni, Peter, Hugenschmidt, Christoph, Sekania, Mikheil, James, Alyn D. N., Bonart, Jakob A. E., Unglert, Nico, Chioncel, Liviu
Two dimensional angular correlation of the positron annihilation radiation (2D-ACAR) spectra are measured for $\mathrm{LaB}_6$ along high symmetry directions and compared with first principle calculations based on density functional theory (DFT). Thi
Externí odkaz:
http://arxiv.org/abs/2104.12563
Autor:
Bentley, P. M., Hall-Wilton, R., Cooper-Jensen, C. P., Cherkashyna, N., Kanaki, K., Schanzer, C., Schneider, M., Boeni, P.
The invention of self-shielding copper substrate neutron guides is described, along with the rationale behind the development, and the realisation of commercial supply. The relative advantages with respect to existing technologies are quantified. The
Externí odkaz:
http://arxiv.org/abs/2104.02453