Search Results - "Agrestini, S"

Magnetic excitations in infinite-layer nickelates by Lu, H., Rossi, M., Nag, A., Osada, M., Li, D. F., Lee, K., Wang, B. Y., Garcia-Fernandez, M., Agrestini, S., Shen, Z. X., Been, E. M., Moritz, B., Devereaux, T. P., Zaanen, J., Hwang, H. Y., Zhou, Ke-Jin, Lee, W. S.

“…Looking for magnetic clues Thin films of the neodymium nickelate NdNiO 2 doped with strontium have recently been found to be superconducting. This materials…”
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Quadrupolar magnetic excitations in an isotropic spin-1 antiferromagnet by Nag, A., Nocera, A., Agrestini, S., Garcia-Fernandez, M., Walters, A. C., Cheong, Sang-Wook, Johnston, S., Zhou, Ke-Jin

“…The microscopic origins of emergent behaviours in condensed matter systems are encoded in their excitations. In ordinary magnetic materials, single spin-flips…”
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The emergence of magnetic ordering at complex oxide interfaces tuned by defects by Park, D.-S., Rata, A. D., Maznichenko, I. V., Ostanin, S., Gan, Y. L., Agrestini, S., Rees, G. J., Walker, M., Li, J., Herrero-Martin, J., Singh, G., Luo, Z., Bhatnagar, A., Chen, Y. Z., Tileli, V., Muralt, P., Kalaboukhov, A., Mertig, I., Dörr, K., Ernst, A., Pryds, N.

“…Complex oxides show extreme sensitivity to structural distortions and defects, and the intricate balance of competing interactions which emerge at atomically…”
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Gapped Collective Charge Excitations and Interlayer Hopping in Cuprate Superconductors by Hepting, M., Bejas, M., Nag, A., Yamase, H., Coppola, N., Betto, D., Falter, C., Garcia-Fernandez, M., Agrestini, S., Zhou, Ke-Jin, Minola, M., Sacco, C., Maritato, L., Orgiani, P., Wei, H. I., Shen, K. M., Schlom, D. G., Galdi, A., Greco, A., Keimer, B.

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Single-domain multiferroic BiFeO3 films by Kuo, C.-Y., Hu, Z., Yang, J. C., Liao, S.-C., Huang, Y. L., Vasudevan, R. K., Okatan, M. B., Jesse, S., Kalinin, S. V., Li, L., Liu, H. J., Lai, C.-H., Pi, T. W., Agrestini, S., Chen, K., Ohresser, P., Tanaka, A., Tjeng, L. H., Chu, Y. H.

“…The strong coupling between antiferromagnetism and ferroelectricity at room temperature found in BiFeO 3 generates high expectations for the design and…”
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Correlation driven near-flat band Stoner excitations in a Kagome magnet by Nag, Abhishek, Peng, Yiran, Li, Jiemin, Agrestini, S., Robarts, H. C., García-Fernández, Mirian, Walters, A. C., Wang, Qi, Yin, Qiangwei, Lei, Hechang, Yin, Zhiping, Zhou, Ke-Jin

“…Among condensed matter systems, Mott insulators exhibit diverse properties that emerge from electronic correlations. In itinerant metals, correlations are…”
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Understanding the electronic structure of IrO2 using hard-X-ray photoelectron spectroscopy and density-functional theory by Kahk, J M, Poll, C G, Oropeza, F E, Ablett, J M, Céolin, D, Rueff, J-P, Agrestini, S, Utsumi, Y, Tsuei, K D, Liao, Y F, Borgatti, F, Panaccione, G, Regoutz, A, Egdell, R G, Morgan, B J, Scanlon, D O, Payne, D J

“…The electronic structure of IrO2 has been investigated using hard x-ray photoelectron spectroscopy and density-functional theory. Excellent agreement is…”
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Origin of Magnetism in a Supposedly Nonmagnetic Osmium Oxide by Agrestini, S, Borgatti, F, Florio, P, Frassineti, J, Fiore Mosca, D, Faure, Q, Detlefs, B, Sahle, C J, Francoual, S, Choi, J, Garcia-Fernandez, M, Zhou, K-J, Mitrović, V F, Woodward, P M, Ghiringhelli, G, Franchini, C, Boscherini, F, Sanna, S, Moretti Sala, M

“…A supposedly nonmagnetic 5d^{1} double perovskite oxide is investigated by a combination of spectroscopic and theoretical methods, namely, resonant inelastic…”
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Slow magnetic order-order transition in the spin chain antiferromagnet Ca3Co2O6 by Agrestini, S, Fleck, C L, Chapon, L C, Mazzoli, C, Bombardi, A, Lees, M R, Petrenko, O A

“…Using powder neutron diffraction, we have discovered an unusual magnetic order-order transition in the Ising spin chain compound Ca3Co2O6. On lowering the…”
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Paramagnetic LaCoO3: A Highly Inhomogeneous Mixed Spin-State System by Takegami, D, Tanaka, A, Agrestini, S, Z. Hu, Weinen, J, Rotter, M, Schüßler-Langeheine, C, Willers, T, Koethe, T C, Lorenz, T, Liao, Y F, Tsuei, K D, H.-J. Lin, Chen, C T, Tjeng, L H

“…We investigate the electronic structure ofLaCoO3across the gradual spin-state and insulator-to-metal transitions using bulk-sensitive hard x-ray photoelectron…”
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Nature of the magnetic order in Ca3Co2O6 by Agrestini, S, Chapon, L C, Daoud-Aladine, A, Schefer, J, Gukasov, A, Mazzoli, C, Lees, M R, Petrenko, O A

“…We present a detailed powder and single-crystal neutron diffraction study of the spin chain compound Ca3Co2O6. Below 25 K, the system orders magnetically with…”
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Revisiting the Phase Transition of Magnetite under Pressure by Chen, K, Baudelet, F, Mijiti, Y, Nataf, L, Di Cicco, A, Hu, Z, Agrestini, S, Komarek, A. C, Sougrati, M, Haines, J, Rouquette, J, Kong, Q, Weng, T.-C

“…Using a highly stoichiometric magnetite, the pressure-induced phase transitions of Fe3O4 have been revisited here by performing Fe K-edge X-ray absorption and…”
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c-Axis Dimer and Its Electronic Breakup: The Insulator-to-Metal Transition in Ti2O3 by Chang, C F, Koethe, T C, Z. Hu, Weinen, J, Agrestini, S, Zhao, L, Gegner, J, Ott, H, Panaccione, G, Wu, Hua, Haverkort, M W, Roth, H, Komarek, A C, Offi, F, Monaco, G, Y.-F. Liao, K.-D. Tsuei, H.-J. Lin, Chen, C T, Tanaka, A, Tjeng, L H

“…We report on our investigation of the electronic structure ofTi2O3using (hard) x-ray photoelectron and soft x-ray absorption spectroscopy. From the distinct…”
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Spin-state order disorder and metal-insulator transition in GdBaCo2O5.5: experimental determination of the underlying electronic structure by Hu, Z, Wu, Hua, Koethe, T C, Barilo, S N, Shiryaev, S V, Bychkov, G L, Schüßler-Langeheine, C, Lorenz, T, Tanaka, A, Hsieh, H H, Lin, H-J, Chen, C T, Brookes, N B, Agrestini, S, Chin, Y-Y, Rotter, M, Tjeng, L H

“…We have investigated the electronic structure of GdBaCo2O5.5 across the metal-insulator transition (MIT) using soft x-ray absorption and photoelectron…”
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Polarization dependent hard X-ray photoemission experiments for solids: Efficiency and limits for unraveling the orbital character of the valence band by Weinen, J., Koethe, T.C., Chang, C.F., Agrestini, S., Kasinathan, D., Liao, Y.F., Fujiwara, H., Schüßler-Langeheine, C., Strigari, F., Haupricht, T., Panaccione, G., Offi, F., Monaco, G., Huotari, S., Tsuei, K.-D., Tjeng, L.H.

“…•Efficiency and limits of polarization dependent HAXPES for solid state systems.•The polarization dependence is less than expected from atomic…”
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Local structure of ReFeAsO (Re=La, Pr, Nd, Sm) oxypnictides studied by Fe K-edge EXAFS by Iadecola, A, Agrestini, S, Filippi, M, Simonelli, L, Fratini, M, Joseph, B, Mahajan, D, Saini, N. L

“…Local structure of ReOFeAs (Re = La, Pr, Nd, Sm) system has been studied as a function of chemical pressure varied due to different rare-earth size. Fe K-edge…”
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Field-driven magnetisation steps in Ca3Co2O6: A single-crystal neutron-diffraction study by Fleck, C. L, Lees, M. R, Agrestini, S, McIntyre, G. J, Petrenko, O. A

“…The behaviour of the spin chain compound Ca3Co2O6 in an applied magnetic field has been the subject of a detailed single-crystal neutron diffraction study. The…”
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Growth-sequence-dependent interface magnetism of SrIrO3–La0.7Sr0.3MnO3 bilayers by Bergmann, L., Düring, P., Agrestini, S., Efimenko, A., Liao, S.-C., Hu, Z., Gargiani, P., Choi, C.-J., Baik, H., Park, D.-S., Dörr, K., Rata, A. D.

“…Bilayers of the oxide 3d ferromagnet La0.7Sr0.3MnO3 (LSMO) and the 5d paramagnet SrIrO3 (SIO) with large spin–orbit coupling (SOC) have been investigated…”
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Resonant X-ray scattering study of Ca3Co2O6 ground state: Preliminary results of magnetic field effects by Mazzoli, C., Bombardi, A., Agrestini, S., Lees, M.R.

“…We present resonant magnetic X-ray scattering (RMXS) measurements in an applied magnetic field on a single crystal of Ca3Co2O6. We focus our attention on the…”
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Distribution of electronic reconstruction at the n -type LaAlO3/SrTiO3 interface revealed by hard x-ray photoemission spectroscopy by Chu, Y. Y., Liao, Y. F., Tra, V. T., Yang, J. C., Liu, W. Z., Chu, Y. H., Lin, J. Y., Huang, J. H., Weinen, J., Agrestini, S., Tsuei, K.-D., Huang, D. J.

“…We investigated the electronic reconstruction at the n-type LaAlO3/SrTiO3 interface with hard x-ray photoelectron spectroscopy (HAXPES) under grazing…”
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