Nature of the magnetic order and origin of induced ferroelectricity in TbMnO$_3$ (2009)
Wilkins, S. B., Forrest, T. R., Beale, T. A. W., Bland, S. R., Walker, H. C., Mannix, D., ...
The magnetic structures which endow TbMnO$_3$ with its multiferroic properties have been reassessed on the basis of a comprehensive soft x-ray resonant scattering (XRS) study. The selectivity of XRS...
Tacon, M. Le, Forrest, T. R., Rüegg, Ch., Bosak, A., Walters, A. C., Mittal, R., ...
We report inelastic x-ray scattering experiments on the lattice dynamics in SmFeAsO and superconducting SmFeAsO$_{0.6}$F$_{0.35}$ single crystals. Particular attention was paid to the dispersions...
Resonant inelastic x-ray scattering study of the electronic structure of Cu$_2$O (2009)
Kim, Young-June, Hill, J. P., Yamaguchi, H., Gog, T., Casa, D.
A resonant inelastic x-ray scattering study of the electronic structure of the semiconductor cuprous oxide, $\rm Cu_2O$, is reported. When the incident x-ray energy is tuned to the Cu K-absorption...
Kim, Jungho, Ellis, D. S., Zhang, H., Hill, J. P., Chou, F. C., Gog, T., ...
We report empirical comparisons of Cu K-edge indirect resonant inelastic x-ray scattering (RIXS) spectra, taken at the Brillouin zone center, with optical dielectric loss functions measured in a...
Fine-tuning supramolecular assemblies of fullerenes bearing long alkyl chains (2008)
Nakanishi, T., Takahashi, H., Michinobu, T., Hill, J. P., Teranishi, T., Ariga, K.
Orbital Domain Dynamics in a Doped Manganite (2007)
Turner, J. J., Thomas, K. J., Hill, J. P., Pfeifer, M., Chesnel, K., Tomioka, Y., ...
The coupling of multiple degrees of freedom - charge, spin, and lattice - in manganites has mostly been considered at the microscopic level. However, on larger length scales, these correlations may...
Observation of a 500meV Collective Mode in La$_{2-x}$Sr$_x$CuO$_4$ and Nd$_2$CuO$_4$ (2007)
Hill, J. P., Blumberg, G., Kim, Young-June, Ellis, D., Wakimoto, S., Birgeneau, R. J., ...
Utilizing resonant inelastic x-ray scattering, we report a previously unobserved mode in the excitation spectrum of La$_{2-x}$Sr$_x$CuO$_4$ at 500 meV. The mode is peaked around the ($\pi$,0) point...
Charge-transfer exciton in La2CuO4 probed with resonant inelastic x-ray scattering (2007)
Ellis, D. S., Hill, J. P., Wakimoto, S., Birgeneau, R. J., Casa, D., Gog, T., ...
We report a high-resolution resonant inelastic x-ray scattering study of La2CuO4. A number of spectral features are identified that were not clearly visible in earlier lower-resolution data. The...
Inelastic X-ray Scattering Study of Phonons in Superconducting CaC6 (2007)
Upton, M. H., Walters, A. C., Howard, C. A., Rahnejat, K. C., Ellerby, M., Hill, J. P., ...
We investigate the dispersion and temperature dependence of a number of phonons in the recently discovered superconductor CaC6 utilizing inelastic x-ray scattering. Four [00L] and two ab-plane phonon...
Direct observation of oxygen superstructures in manganites (2007)
Grenier, S., Thomas, K. J., Hill, J. P., Staub, U., Bodenthin, Y., García-Fernández, M., ...
We report the observation of superstructures associated with the oxygen 2p-states in two prototypical manganites using x-ray diffraction at the oxygen K-edge. We determine the nature of the orderings...
Surface effects on the orbital order in the single layered manganite La0.5Sr1.5MnO4 (2007)
Wakabayashi, Y., Upton, M. H., Grenier, S., Hill, J. P., Nelson, C. S., ...
We report the first observation of `orbital truncation rods' -- the scattering arising from the termination of bulk orbital order at the surface of a crystal. The x-ray measurements, performed on a...
Direct probe of oxygen superstructures in manganites (2007)
Grenier, Stéphane, J. Thomas, K., Hill, J.P., Staub, U., Bodenthin, Y., Garcia-Fernandez, M., ...
We report the observation of superstructures associated with the oxygen 2p-states in two prototypical manganites using x-ray diffraction at the oxygen K-edge. We determine the nature of the orderings...
Direct observation of oxygen superstructures in manganites (2007)
Grenier, Stéphane, J. Thomas, K., Hill, J.P., Staub, U., Bodenthin, Y., Garcia-Fernandez, M., ...
We report the observation of superstructures associated with the oxygen 2p-states in two prototypical manganites using x-ray diffraction at the oxygen K-edge. In the stripe order system Bi0.31 Ca0.69...
Direct observation of oxygen superstructures in manganites (2007)
Grenier, Stéphane, J. Thomas, K., Hill, J.P., Staub, U., Bodenthin, Y., Garcia-Fernandez, M., ...
We report the observation of superstructures associated with the oxygen 2p-states in two prototypical manganites using x-ray diffraction at the oxygen K-edge. In the stripe order system Bi0.31 Ca0.69...
Effect of Number of Walls on Plasmon Behavior in Carbon Nanotubes (2006)
Upton, M. H., Klie, R. F., Hill, J. P., Gog, T., Casa, D., Ku, W., ...
We investigate the physical parameters controlling the low energy screening in carbon nanotubes via electron energy loss spectroscopy and inelastic x-ray scattering. Two plasmon-like features are...
Birgisdottir, B E, Hill, J P, Thorsson, A V, Thorsdottir, I
To access publisher full text version of this article. Please click on the hyperlink in Additional Links field
Huecker, M., Zimmermann, M. V., Klingeler, R., Kiele, S., Geck, J., Bakehe, S. N., ...
The interplay between crystal symmetry and charge stripe order in Pr1.67Sr0.33NiO4 and Nd1.67Sr0.33NiO4 has been studied by means of single crystal x-ray diffraction. In contrast to tetragonal...
M. Hücker, M. V. Zimmermann, R. Klingeler, S. Kiele, J. Geck, ...
Journal article
Orbital ordering transition in Ca$_2$RuO$_4$ observed with resonant x-ray diffraction (2005)
Zegkinoglou, I., Strempfer, J., Nelson, C. S., Hill, J. P., Chakhalian, J., Bernhard, C., ...
Resonant x-ray diffraction performed at the $\rm L_{II}$ and $\rm L_{III}$ absorption edges of Ru has been used to investigate the magnetic and orbital ordering in Ca$_2$RuO$_4$ single crystals. A...
Orbital Ordering Transition in Ca2RuO4 Observed with Resonant X-Ray Diffraction (2005)
Zegkinoglou, I., Strempfer, J., Nelson, C. S., Hill, J. P., Chakhalian, J., Bernhard, C., ...
Schmitt, W., Hill, J.P., Malik, S., Volkert, C.A., Ichinose, I., Anson, C.E., ...
Angewandte Chemie International Edition, 44(2005) S.7048-53
Grenier, S., Hill, J. P., Kiryukhin, V., Ku, W., Thomas, K. J., ...
We report the observation of temperature dependent electronic excitations in various manganites utilizing resonant inelastic x-ray scattering (RIXS) at the Mn K-edge. Excitations were observed...
Molecular orbital excitations in cuprates (2004)
Kim, Young-June, Hill, J. P., Gu, G. D., Chou, F. C., Wakimoto, S., Birgeneau, R. J., ...
We report resonant inelastic x-ray scattering studies of electronic excitations in a wide variety of cuprate compounds. Specifically, we focus on the charge-transfer type excitation of an electron...
Doping dependence of charge-transfer excitations in La_{2-x}Sr_xCuO_4 (2004)
Kim, Young-June, Hill, J. P., Komiya, Seiki, Ando, Yoichi, Casa, D., Gog, T., ...
We report a resonant inelastic x-ray scattering (RIXS) study of the doping dependence of charge-transfer excitations in $\rm La_{2-x}Sr_xCuO_4$. The mome ntum dependence of these charge excitations...
Thomas, K J, Hill, J P, Grenier, S, Kim, Y J, Abbamonte, P, Venema, L, ...
Thomas, K. J., Hill, J. P., Kim, Y-J., Grenier, S., Abbamonte, P., Venema, L., ...
We have utilized the resonant x-ray diffraction technique at the Mn L-edge in order to directly compare magnetic and orbital correlations in the Mn sub-lattice of Pr0.6Ca0.4MnO3. The resonant line...
Resonant inelastic x-ray scattering study of holon-antiholon continuum in SrCuO2 (2003)
Kim, Young-June, Hill, J. P., Benthien, H., Essler, F. H. L., Jeckelmann, E., Choi, H. S., ...
We report a resonant inelastic x-ray scattering study of charge excitations in the quasi-one-dimensional Mott insulator SrCuO2. We observe a continuum of low-energy excitations, in which a highly...
Resonant x-ray diffraction study of the magnetoresistant perovskite Pr0.6Ca0.4MnO3 (2003)
Grenier, S., Hill, J. P., Gibbs, Doon, Thomas, K. J., Zimmermann, M. V., Nelson, C. S., ...
We report a x-ray resonant diffraction study of the perovskite Pr0.6Ca0.4MnO3. At the Mn K-edge, this technique is sensitive to details of the electronic structure of the Mn atoms. We discuss the...
Charge and orbital excitations in Li2CuO2 (2003)
Kim, Young-June, Hill, J. P., Chou, F. C., Casa, D., Gog, T., Venkataraman, C. T.
We report a resonant inelastic x-ray scattering study of electronic excitations in Li_2CuO_2, an insulating compound comprised of ribbons of edge-sharing copper-oxygen chains. Three excitations,...
Substrate-induced strain effects on Pr_{0.6}Ca_{0.4}MnO_{3} films (2003)
Nelson, C. S., Hill, J. P., Gibbs, Doon, Rajeswari, M., Biswas, A., Shinde, S., ...
We report the characterization of the crystal structure, low-temperature charge and orbital ordering, transport, and magnetization of Pr_{0.6}Ca_{0.4}MnO_{3} films grown on LaAlO_{3}, NdGaO_{3}, and...
Average Lattice Symmetry and Nanoscale Structural Correlations in Magnetoresistive Manganites (2003)
Kiryukhin, V., Koo, T. Y., Ishibashi, H., Hill, J. P., Cheong, S-W.
We report x-ray scattering studies of nanoscale structural correlations in the paramagnetic phases of the perovskite manganites La$_{0.75}$(Ca$_{0.45}$Sr$_{0.55}$)$_{0.25}$MnO$_3$,...
Redox interplay of oxo-thio-tungsten centers with sulfur-donor co-ligands (2003)
Thomas, S., Eagle, A. A., Sproules, S. A., Hill, J. P., White, J. M., Tiekink, Edward Richard Tom, ...
Redox interplay of oxo-thio-tungsten centers with sulfur-donor co-ligands (2003)
Thomas, S., Eagle, A. A., Sproules, S. A., Hill, J. P., White, J. M., Tiekink, Edward Richard Tom, ...
Birgisdottir, B E, Hill, J P, Harris, D P, Thorsdottir, I
BACKGROUND: The incidence of Type 1 diabetes is lower in Iceland than in the other 4 Nordic Countries. Earlier studies have showed that the cow milk proteins A1 and B beta-casein, suggested to be...
Resonant inelastic x-ray scattering study of charge excitations in La2CuO4 (2002)
Kim, Y. J., Hill, J. P., Burns, C. A., Wakimoto, S., Birgeneau, R. J., Casa, D., ...
We report a resonant inelastic x-ray scattering study of the dispersion relations of charge transfer excitations in insulating La$_2$CuO$_4$. These data reveal two peaks, both of which show...
Coherent X-ray Scattering from Manganite Charge and Orbital Domains (2002)
Nelson, C. S., Hill, J. P., Gibbs, Doon, Yakhou, F., Livet, F., Tomioka, Y., ...
We report coherent x-ray scattering studies of charge and orbital domains in manganite systems. The experiments were carried out on LaMnO_3 and Pr_{0.6}Ca_{0.4}MnO_3, with the incident photon energy...
Complex Quantum Phenomena in a Bilayered Calcium Ruthenate (2002)
Cao, G., Balicas, L., Xin, Y., Dagotto, E., Crow, J. E., Nelson, C. S., ...
Ca$_3$Ru$_2$O$_7$ undergoes an antiferromagnetic transition at $T_{\text{N}}=56 $K, followed by a Mott-like (MI) transition at $T_{\text{MI}}=48$ K. This nonmetallic ground state, with a charge gap...
Kiryukhin, V., Koo, T. Y., Borissov, A., Kim, Y. J., Nelson, C. S., Hill, J. P., ...
We report x-ray scattering studies of nanoscale structural correlations in Nd$_{1-x}$Sr$_x$MnO$_3$ and La$_{1-x}$(Ca,Sr)$_x$MnO$_3$, $x$=0.2--0.5. We find that the correlated regions possess a...
Koo, T. Y., Kiryukhin, V., Sharma, P. A., Hill, J. P., Cheong, S-W.
We report synchrotron x-ray scattering studies of charge/orbitally ordered (COO) nanoclusters in Nd$_{0.7}$Sr$_{0.3}$MnO$_3$. We find that the COO nanoclusters are strongly suppressed in an applied...
Orbital Correlations in Doped Manganites (2001)
Hill, J. P., Nelson, C. S., Zimmermann, M. V., Gibbs, D., Casa, D., ...
We review our recent x-ray scattering studies of charge and orbital order in doped manganites, with specific emphasis on the role of orbital correlations in Pr_1-xCa_xMnO_3. For x=0.25, we find an...
Zimmermann, M. V., Nelson, C. S., Hill, J. P., Gibbs, Doon, Nakao, H., ...
We report an x-ray scattering study of octahedral tilt ordering in the manganite series Pr$_{1-x}$Ca$_x$MnO$_3$ with x=0.4 and 0.25 and in LaMnO$_3$. The sensitivity to tilt ordering is achieved by...
Kiryukhin, V., Kim, B. G., Katsufuji, T., Hill, J. P., Cheong, S-W.
We report x-ray scattering studies of short-range structural correlations and diffuse scattering in Nd0.5Sr0.5MnO3. On cooling, this material undergoes a series of transitions, first from a...
Correlated polarons in dissimilar perovskite manganites (2001)
Nelson, C. S., Von Zimmermann, M., Kim, Y. J., Hill, J. P., Gibbs, D., Kiryukhin, V., ...
Unusual X-ray transport phenomena in La1-xSrxMnO3 (2001)
Casa, D., Keimer, B., Von Zimmermann, M., Hill, J. P., Razavi, F. S.
Orbital correlations in doped manganites (2001)
Hill, J. P., Nelson, C. S., Von Zimmermann, M., Kim, Y. J., Gibbs, D., Casa, D., ...
X-ray resonant scattering studies of orbital and charge ordering in Pr1-xCaxMnO3 (2001)
Von Zimmermann, M., Nelson, C. S., Hill, J. P., Gibbs, D., Blume, M., Casa, D., ...
X-ray resonant scattering studies of charge and orbital ordering in Pr1-xCaxMnO3 (2001)
V. Zimmenmann, M., Nelson, C.S., Hill, J.P., Gibbs, D., Blume, M., Casa, D., ...
Correlated Polarons in Dissimilar Perovskite Manganites (2000)
Nelson, C. S., Zimmermann, M. V., Hill, J. P., Gibbs, Doon, Kiryukhin, V., Koo, T. Y., ...
We report x-ray scattering studies of broad peaks located at a (0.5 0 0)/(0 0.5 0)-type wavevector in the paramagnetic insulating phases of La_{0.7}Ca_{0.3}MnO_{3} and Pr_{0.7}Ca_{0.3}MnO_{3}. We...
Kiryukhin, V., Kim, B. G., Podzorov, V., Cheong, S-W., Koo, T. Y., Hill, J. P., ...
The insulator-metal transition in single crystal La(5/8-y)Pr(y)Ca(3/8)MnO3 with y=0.35 was studied using synchrotron x-ray diffraction, electric resistivity, magnetic susceptibility, and specific...
X-ray Resonant Scattering Studies of Orbital and Charge Ordering in Pr$_{1-x}$Ca$_x$MnO$_3$ (2000)
Zimmermann, M. V., Nelson, C. S., Hill, J. P., Gibbs, Doon, Blume, M., Casa, D., ...
We present the results of a systematic x-ray scattering study of the charge and orbital ordering in the manganite series Pr$_{1-x}$Ca$_x$MnO$_3$ with $x$=0.25, 0.4 and 0.5. The temperature dependence...
Independent freezing of charge and spin dynamics in La1.5Sr0.5CoO4 (2000)
Zaliznyak, I. A., Hill, J. P., Tranquada, J. M., Erwin, R., Moritomo, Y.
We present elastic and quasielastic neutron scattering measurements characterizing peculiar short-range charge-orbital and spin order in the layered perovskite material La1.5Sr0.5CoO4. We find that...
X-ray Anomalous Scattering Study of a Charge-Ordered State in NaV2O5 (2000)
Nakao, H., Ohwada, K., Takesue, N., Fujii, Y., Isobe, M., Ueda, Y., ...
Charge ordering of V4+ and V5+ in NaV2O5 has been studied by an X-ray diffraction technique using anomalous scattering near a vanadium K-absorption edge to critically enhance a contrast between the...
Spin Dynamics and Orbital State in LaTiO_3 (2000)
Keimer, B., Casa, D., Ivanov, A., Lynn, J. W., Zimmermann, M. V., Hill, J. P., ...
A neutron scattering study of the Mott-Hubbard insulator LaTiO$_{3}$ (T$_{{\rm N}}=132$ K) reveals a spin wave spectrum that is well described by a nearest-neighbor superexchange constant $J=15.5$...
Spin Dynamics and Orbital State in LaTiO3 (2000)
Keimer, B., Casa, D., Ivanov, A., Lynn, J. W., Von Zimmermann, M., Hill, J. P., ...
Du, C. H., Lin, W. J., Su, Y., Tanner, B. K., Hatton, P. D., Casa, D., ...
Interplay of charge, orbital and magnetic order in Pr1–xCaxMnO3 (2000)
Zimmermann, M.V., Hill, J.P., Gibbs, D., Blume, M., Casa, D., Keimer, B., ...
X-ray scattering study of copper magnetism in non-superconducting PrBa§2Cu§3O§6§.§9§2. (2000)
Hill, J.P., Mc Morrow, D.F., Boothroyd, A.T., Stunault, A., Vettier, C., Berman, L.E., ...
Physical Review B, 61(2000) S.1251-55
Interplay between charge, orbital and magnetic order in Pr_{1-x}Ca_xMnO_3 (1999)
Zimmermann, M. V., Hill, J. P., Gibbs, Doon, Blume, M., Casa, D., Keimer, B., ...
We report resonant x-ray scattering studies of charge and orbital order in Pr_{1-x}Ca_{x}MnO_3 with x=0.4 and 0.5. Below the ordering temperature, T_O=245 K, the charge and orbital order intensities...
Interplay between charge, orbital and magnetic order in Pr1-xCaxMnO3. (1999)
Von Zimmermann, M., Hill, J. P., Gibbs, D., Blume, M., Casa, D., Keimer, B., ...
Incommensurate magnetism in non-superconducting PrBa§2Cu§3O§6§.§9§2. (1999)
Boothroyd, A.T., Hill, J.P., Mc Morrow, D.F., Andersen, N.H., Stunault, A., Vettier, C., ...
1st Euroconf.on Anomalous Complex Superconductors, Agia Pelagia, GR, September 26 - October 3, 1998
X-ray scattering study of copper magnetism in non-superconducting PrBa§2Cu§3O§6§.§9§2. (1999)
Hill, J.P., Mc Morrow, D.F., Boothroyd, A.T., Stunault, A., Vettier, C., Bermann, L.E., ...
RISOE-R-1099(EN) (April 99) S.23
Casa, D., Kiryukhin, V., Saleh, O. A., Keimer, B., Hill, J. P., Tomioka, Y., ...
Charge-ordered manganites of composition $\rm Pr_{1-x}(Ca_{1-y}Sr_{y})_{x}MnO_3$ exhibit persistent photoconductivity upon exposure to x-rays. This is not always accompanied by a significant increase...
Incommensurate Magnetism in PrBa§2Cu§3O§6§+§x. (1998)
Boothroyd, A.T., Andersen, N.H., Hill, J.P., Wolf, T.
Nielsen, M. et al. [Hrsg.]
Incommensurate magnetism in PrBa§2Cu§3O§6§.§9§2. (1998)
Hill, J.P., Boothroyd, A.T., Andersen, N.H., Brecht, E., Wolf, T.
Physical Review B, 58(1998) S.11211-14
Hill, J P, Buckley, P D, Blackwell, L F, Motion, R L
Pyrophosphate ions activate the steady-state rate of oxidation of propionaldehyde by sheep liver cytosolic aldehyde dehydrogenase at alkaline pH values. The steps in the mechanism governing the...
Kitson, T M, Hill, J P, Midwinter, G G
Sheep liver cytoplasmic aldehyde dehydrogenase was labelled by reaction with the substrate p-nitrophenyl di[14C]methylcarbamate. After tryptic digestion and peptide fractionation the labelled residue...
Hill, J P, Buckley, P D, Blackwell, L F, Motion, R L
Pyrophosphate ions activate the steady-state rate of oxidation of propionaldehyde by sheep liver cytosolic aldehyde dehydrogenase at alkaline pH values. The steps in the mechanism governing the...
Kitson, T M, Hill, J P, Midwinter, G G
Sheep liver cytoplasmic aldehyde dehydrogenase was labelled by reaction with the substrate p-nitrophenyl di[14C]methylcarbamate. After tryptic digestion and peptide fractionation the labelled residue...