A critical re-examination of resonant soft x-ray Bragg forbidden reflections in magnetite (2008)
Wilkins, S. B., Di Matteo, S., Beale, T. A. W., Joly, Y., Mazzoli, C., Hatton, P. D., ...
Magnetite, Fe$_3$O$_4$, displays a highly complex low temperature crystal structure that may be charge and orbitally ordered. Many of the recent experimental claims of such ordering rely on resonant...
Forrest, T. R., Bland, S. R., Wilkins, S. B., Walker, H. C., Beale, T. A. W., Hatton, P. D., ...
Soft X-ray resonant scattering (XRS) has been used to observe directly, for the first time, the ordering of localized electronic states on both the Mn and Tb sites in multiferroic TbMnO$_3$. Large...
Determination of magnetic order of the rare-earth ions in multiferroic TbMn2O5 (2008)
Johnson, R. D., Bland, S. R., Mazzoli, C., Beale, T. A. W., Du, C. H., Detlefs, C., ...
We have employed resonant x-ray magnetic scattering to specifically probe the magnetic order of the rare-earth ions in multiferroic $\mathrm{TbMn_2O_5}$. Two energy resonances were observed, one...
X-ray Resonant Scattering Study of the Order Parameters in Multiferroic TbMnO$_3$ (2007)
Mannix, D., McMorrow, D. F., Ewings, R. A., Boothroyd, A. T., Prabhakaran, D., Joly, Y., ...
We report on an extensive investigation of the multiferroic compound TbMnO$_3$. Non-resonant x-ray magnetic scattering (NRXMS) revealed a dominant $A$-type domain. The temperature dependence of the...
Webster, C. H., Helme, L. M., Boothroyd, A. T., McMorrow, D. F., Wilkins, S. B., Detlefs, C., ...
A synchrotron x-ray diffraction study of the crystallographic structure of PrO2 in the Jahn-Teller distorted phase is reported. The distortion of the oxygen sublattice, which was previously...
Resonant x-ray scattering study of NpRhGa_5 and NpCoGa_5 (2007)
Detlefs, B., Wilkins, S. B., Caciuffo, R., Paixão, J. A., Kaneko, K., Honda, F., ...
We report a resonant x-ray scattering (RXS) study of antiferromagnetic neptunium compounds NpCoGa_5 and NpRhGa_5 at the Np M_4 and Ga K-edges. Large resonant signals of magnetic dipole character are...
Understanding the quadrupolar structures of UPd3UPd3 (2007)
McEwen, K.A., Walker, H.C., Le, M.D., McMorrow, D.F., Colineau, E., Wastin, F., ...
UPd3 exhibits four phase transitions below T0 = 7.8 K, attributed to a succession of antiferroquadrupolar (AFQ) orderings of the 5f2 uranium ions localised on the quasi-cubic sites of the dhcp...
Resonant soft x-ray magnetic scattering from the 4f and 3d electrons in DyFe(4)Al(8) (2007)
Beale, T. A. W., Wilkins, S. B., Hatton, P. D., Abbamonte, P., Stanescu, S., Paixao, J. A.
Soft x-ray resonant scattering has been used to examine the charge and magnetic interactions in the cycloidal antiferromagnetic compound \dyfeal. By tuning to the Dy $M_4$ and $M_5$ absorption edges...
Detlefs, B., Wilkins, S. B., Javorský, P., Blackburn, E., Lander, G. H.
Experiments with resonant photons at the U M4 edge have been performed on a sample of USb_{0.9}Te_{0.1}, which has an incommensurate magnetic structure with k = 0.596(2) reciprocal lattice units. The...
Disentangling multipole resonances through a full x-ray polarization analysis (2006)
Mazzoli, C., Wilkins, S. B., Di Matteo, S., Detlefs, B., Detlefs, C., Scagnoli, V., ...
Complete polarization analysis applied to resonant x-ray scattering at the Cr K-edge in K2CrO4 shows that incident linearly polarized x-rays can be converted into circularly polarized x-rays by...
Determination of the Antiferroquadrupolar Order Parameters in UPd3 (2006)
Walker, H. C., McEwen, K. A., McMorrow, D. F., Wilkins, S. B., Wastin, F., Colineau, E., ...
By combining accurate heat capacity and X-ray resonant scattering results we have resolved the long standing question regarding the nature of the quadrupolar ordered phases in UPd_3. The order...
Determination of the antiferroquadrupolar order parameters in UPd3 (2006)
Walker, H.C., McEwen, K.A., McMorrow, D.F., Wilkins, S.B., Wastin, F., Colineau, E., ...
By combining accurate heat capacity and x-ray resonant scattering results we have resolved the long standing question regarding the nature of the quadrupolar ordered phases in UPd3. The order...
Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...
We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \\unpo. Earlier neutron diffraction and M\\\"{o}ssbauer studies had shown the...
Evidence of Orbital Ordering in Jahn-Teller Undistorted LaSr$_{2}$Mn$_{2}$O$_{7}$ (2005)
Wilkins, S. B., Stojic, N., Beale, T. A. W., Binggeli, N., Bencok, P., Stanescu, S., ...
Resonant soft x-ray diffraction has been used to probe the orbital and magnetic structure of LaSr$_2$Mn$_2$O$_7$ at low temperatures. Previous crystallographic studies have shown that this material...
Wilkins, S. B., Stojic, N., Beale, T. W. A., Binggeli, N., Castleton, C. W. M., Bencok, P., ...
We report resonant x-ray scattering data of the orbital and magnetic ordering at low temperatures at the Mn $L_{\\rm 2,3}$ edges in \\lsmo. The orderings display complex energy features close to the...
Wilkins, S. B., Spencer, P. D., Hatton, P. D., Collins, S. P., Roper, M. D., Prabhakaran, D., ...
We report the first direct resonant soft x-ray scattering observations of orbital ordering. We have studied the low temperature phase of La$_{0.5}$Sr$_{1.5}$MnO$_4$, a compound that displays charge...
Direct observation of electric-quadrupolar order in UO$_{2}$ (2005)
Wilkins, S. B., Caciuffo, R., Detlefs, C., Rebizant, J., Colineau, E., Wastin, F., ...
We report direct experimental evidence for long-range antiferro ordering of the electric-quadrupole moments on the U ions. Resonant x-ray scattering experiments at the uranium $M_{4}$ absorption edge...
Orbital bi-stripes in highly doped bilayer manganites. (2005)
Beale, T. A. W., Spencer, P. D., Hatton ., P. D., Wilkins, S. B., Von Zimmermann, M., Brown, S. D., ...
We present high-resolution high-energy and resonant x-ray-diffraction results from La2–2xSr1+2xMn2O7 for x=0.55, 0.575, and 0.60. These compounds show superlattice reflections at wave vectors of...
Evidence of Orbital Ordering in Jahn-Teller Undistorted LaSr$_{2}$Mn$_{2}$O$_{7}$ (2004)
Wilkins, S. B., Stojic, N., Beale, T. A. W., Binggeli, N., Bencok, P., Stanescu, S., ...
Resonant soft x-ray diffraction has been used to probe the temperature dependent orbital and magnetic structure of $\mathrm{LaSr_{2}Mn_{2}O_7}$. Previous crystallographic studies have shown that this...
Orbital Bi-Stripes in High Doped Bilayer Manganites (2004)
Beale, T. A. W., Spencer, P. D., Hatton, P. D., Wilkins, S. B., Von Zimmermann, M., Brown, S. D., ...
We present high resolution high energy and resonant x-ray diffraction results from La2-2xSr1+2xMn2O7 for x=0.55,0.575 and 0.60. These compounds show superlattice reflections at wavevectors of...
Wilkins, S. B., Stojic, N., Beale, T. W. A., Binggeli, N., Castleton, C. W. M., Bencok, P., ...
We report resonant x-ray scattering data of the orbital and magnetic ordering at low temperatures at the Mn $L_{\rm 2,3}$ edges in \lsmo. The orderings display complex energy features close to the Mn...
Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...
We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \unpo. Earlier neutron diffraction and M\"{o}ssbauer studies had shown the presence...
Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...
We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \\unpo. Earlier neutron diffraction and M\\\"{o}ssbauer studies had shown the...
Evidence of Orbital Ordering in Jahn-Teller Undistorted LaSr$_{2}$Mn$_{2}$O$_{7}$ (2004)
Wilkins, S. B., Stojic, N., Beale, T. A. W., Binggeli, N., Bencok, P., Stanescu, S., ...
Resonant soft x-ray diffraction has been used to probe the orbital and magnetic structure of LaSr$_2$Mn$_2$O$_7$ at low temperatures. Previous crystallographic studies have shown that this material...
Wilkins, S. B., Stojic, N., Beale, T. W. A., Binggeli, N., Castleton, C. W. M., Bencok, P., ...
We report resonant x-ray scattering data of the orbital and magnetic ordering at low temperatures at the Mn $L_{\\rm 2,3}$ edges in \\lsmo. The orderings display complex energy features close to the...
Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...
We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \\unpo. Earlier neutron diffraction and M\\\"{o}ssbauer studies had shown the...
Evidence of Orbital Ordering in Jahn-Teller Undistorted LaSr$_{2}$Mn$_{2}$O$_{7}$ (2004)
Wilkins, S. B., Stojic, N., Beale, T. A. W., Binggeli, N., Bencok, P., Stanescu, S., ...
Resonant soft x-ray diffraction has been used to probe the orbital and magnetic structure of LaSr$_2$Mn$_2$O$_7$ at low temperatures. Previous crystallographic studies have shown that this material...
Wilkins, S. B., Stojic, N., Beale, T. W. A., Binggeli, N., Castleton, C. W. M., Bencok, P., ...
We report resonant x-ray scattering data of the orbital and magnetic ordering at low temperatures at the Mn $L_{\\rm 2,3}$ edges in \\lsmo. The orderings display complex energy features close to the...
Direct observation of orbital ordering in La0.5Sr1.5MnO4 using soft x-ray diffraction. (2003)
Wilkins, S. B., Spencer, P. D., Hatton, P. D., Collins, S. P., Roper, M. D., Prabhakaran, D., ...
We report the first direct resonant soft x-ray scattering observations of orbital ordering. We have studied the low temperature phase of La0:5Sr1:5MnO4, a compound that displays charge and orbital...
Multi-$\vec{k}$ Configurations (2003)
Bernhoeft, N., Paixão, J. A., Detlefs, C., Wilkins, S. B., Javorsky, P., Blackburn, E., ...
Using resonant x-ray scattering to perform diffraction experiments at the U M$_{4}$ edge novel reflections of the generic form $$ have been observed in UAs$_{0.8}$Se$_{0.2}$ where $\vec{k} = < k00>$,...
Wilkins, S. B., Spencer, P. D., Hatton, P. D., Collins, S. P., Roper, M. D., Prabhakaran, D., ...
We report the first direct resonant soft x-ray scattering observations of orbital ordering. We have studied the low temperature phase of La$_{0.5}$Sr$_{1.5}$MnO$_4$, a compound that displays charge...
Soft x-ray resonant magnetic diffraction. (2003)
Wilkins, S. B., Hatton, P. D., Roper, M. D., Prabhakaran, D., Boothroyd, A. T.
We have conducted the first soft x-ray diffraction experiments from a bulk single crystal, studying the bilayer manganite La22xSr12xMn2O7 with x 0:475 in which we were able to access the (002) Bragg...
Wilkins, S. B., Spencer, P. D., Beale, T. A., Hatton, P. D., Zimmermann, M. V., Brown, S. D., ...
In this paper we present x-ray scattering results of charge and orbital ordering in the bilayer manganite La222xSr112xMn2O7 with doping levels x50.5 and x50.475. Using high-energy x-ray scattering,...
Wilkins, S. B., Spencer, P. D., Hatton, P. D., Collins, S. P., Roper, M. D., Prabhakaran, D., ...
We report the first direct resonant soft x-ray scattering observations of orbital ordering. We have studied the low temperature phase of La$_{0.5}$Sr$_{1.5}$MnO$_4$, a compound that displays charge...
Wilkins, S. B., Spencer, P. D., Hatton, P. D., Collins, S. P., Roper, M. D., Prabhakaran, D., ...
We report the first direct resonant soft x-ray scattering observations of orbital ordering. We have studied the low temperature phase of La$_{0.5}$Sr$_{1.5}$MnO$_4$, a compound that displays charge...
Weak magnetic moment on IrMn exchange bias pinning layers. (2001)
Hase, T. P. A., Fulthorpe, B. D., Wilkins, S. B., Tanner, B. K., Marrows, C. H., Hickey, B. J.
We present evidence from soft x-ray resonant magnetic scattering measurements at the Mn L3 edge for the existence of a small magnetic moment on the antiferromagnetic IrMn pinning layer in a...