Search Results - "Boris, A. V"

Zero-gap semiconductor to excitonic insulator transition in Ta2NiSe5 by Lu, Y. F., Kono, H., Larkin, T. I., Rost, A. W., Takayama, T., Boris, A. V., Keimer, B., Takagi, H.

“…The excitonic insulator is a long conjectured correlated electron phase of narrow-gap semiconductors and semimetals, driven by weakly screened electron–hole…”
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Dimensionality Control of Electronic Phase Transitions in Nickel-Oxide Superlattices by Boris, A. V., Matiks, Y., Benckiser, E., Frano, A., Popovich, P., Hinkov, V., Wochner, P., Castro-Colin, M., Detemple, E., Malik, V. K., Bernhard, C., Prokscha, T., Suter, A., Salman, Z., Morenzoni, E., Cristiani, G., Habermeier, H.-U., Keimer, B.

“…The competition between collective quantum phases in materials with strongly correlated electrons depends sensitively on the dimensionality of the electron…”
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Coexisting first- and second-order electronic phase transitions in a correlated oxide by Post, K. W., McLeod, A. S., Hepting, M., Bluschke, M., Wang, Yifan, Cristiani, G., Logvenov, G., Charnukha, A., Ni, G. X., Radhakrishnan, Padma, Minola, M., Pasupathy, A., Boris, A. V., Benckiser, E., Dahmen, K. A., Carlson, E. W., Keimer, B., Basov, D. N.

“…The explanation and control of phase transitions remain cornerstones of contemporary physics. Landau provided an invaluable insight into the thermodynamics of…”
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Orbital control of noncollinear magnetic order in nickel oxide heterostructures by Frano, A, Schierle, E, Haverkort, M W, Lu, Y, Wu, M, Blanco-Canosa, S, Nwankwo, U, Boris, A V, Wochner, P, Cristiani, G, Habermeier, H U, Logvenov, G, Hinkov, V, Benckiser, E, Weschke, E, Keimer, B

“…We have used resonant x-ray diffraction to develop a detailed description of antiferromagnetic ordering in epitaxial superlattices based on two-unit-cell thick…”
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( ,  ) electronic order in iron arsenide superconductors by Borisenko, S. V, Zabolotnyy, V. B, Inosov, D. S, Evtushinsky, D. V, Koitzsch, A, Kordyuk, A. A, Sun, G. L, Park, J. T, Haug, D, Hinkov, V, Boris, A. V, Lin, C. T, Knupfer, M, Yaresko, A. N, Büchner, B, Varykhalov, A, Follath, R

“…The distribution of valence electrons in metals usually follows the symmetry of the underlying ionic lattice. Modulations of this distribution often occur when…”
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Superconductivity-induced optical anomaly in an iron arsenide by Boris, A. V, Charnukha, A, Popovich, P, Matiks, Y, Sun, D. L, Lin, C. T, Yaresko, A. N, Keimer, B

“…One of the central tenets of conventional theories of superconductivity, including most models proposed for the recently discovered iron-pnictide…”
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Weak-coupling superconductivity in a strongly correlated iron pnictide by Charnukha, A., Post, K. W., Thirupathaiah, S., Pröpper, D., Wurmehl, S., Roslova, M., Morozov, I., Büchner, B., Yaresko, A. N., Boris, A. V., Borisenko, S. V., Basov, D. N.

“…Iron-based superconductors have been found to exhibit an intimate interplay of orbital, spin and lattice degrees of freedom, dramatically affecting their…”
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Evidence for two separate energy gaps in underdoped high-temperature cuprate superconductors from broadband infrared ellipsometry by Yu, Li, Munzar, D, Boris, A V, Yordanov, P, Chaloupka, J, Wolf, Th, Lin, C T, Keimer, B, Bernhard, C

“…We present broadband infrared ellipsometry measurements of the c-axis conductivity of underdoped RBa_{2}Cu_{3}O_{7-delta} (R=Y, Nd, and La) single crystals…”
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In-plane spectral weight shift of charge carriers in YBa2Cu3O6.9 by BORIS, A. V, KOVALEVA, N. N, DOLGOV, O. V, HOLDEN, T, LIN, C. T, KEIMER, B, BERNHARD, C

“…The temperature-dependent redistribution of the spectral weight of the CuO2 plane-derived conduction band of the YBa2Cu3O6.9 high-temperature superconductor…”
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Ultrafast phononic switching of magnetization by Stupakiewicz, A., Davies, C. S., Szerenos, K., Afanasiev, D., Rabinovich, K. S., Boris, A. V., Caviglia, A., Kimel, A. V., Kirilyuk, A.

“…Identifying efficient pathways to control and modify the order parameter of a macroscopic phase in materials is an important ongoing challenge. One way to do…”
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Spin-controlled Mott-Hubbard bands in LaMnO3 probed by optical ellipsometry by Kovaleva, N N, Boris, A V, Bernhard, C, Kulakov, A, Pimenov, A, Balbashov, A M, Khaliullin, G, Keimer, B

“…Spectral ellipsometry is used to determine the dielectric function of an untwinned crystal of LaMnO3 in the range 0.5-5.6 eV at temperatures 50<or=T<or=300 K…”
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Charge ordering and magnetopolarons in Na0.82CoO2 by BERNHARD, C, BORIS, A. V, KOVALEVA, N. N, KHALIULLIN, G, PIMENOV, A. V, LI YU, CHEN, D. P, LIN, C. T, KEIMER, B

“…Using spectral ellipsometry, we measured the dielectric function of a Na(0.82(2))CoO2 crystal that exhibits bulk antiferromagnetism with T(N)=19.8 K. We…”
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Photo-induced high-temperature ferromagnetism in YTiO3 by Disa, A. S., Curtis, J., Fechner, M., Liu, A., von Hoegen, A., Först, M., Nova, T. F., Narang, P., Maljuk, A., Boris, A. V., Keimer, B., Cavalleri, A.

“…In quantum materials, degeneracies and frustrated interactions can have a profound impact on the emergence of long-range order, often driving strong…”
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Ferromagnetism and Conductivity in Atomically Thin SrRuO3 by Boschker, H, Harada, T, Asaba, T, Ashoori, R, Boris, A V, Hilgenkamp, H, Hughes, C R, Holtz, M E, L. Li, Muller, D A, Nair, H, Reith, P, X. Renshaw Wang, Schlom, D G, Soukiassian, A, Mannhart, J

“…Atomically thin ferromagnetic and conducting electron systems are highly desired for spintronics, because they can be controlled with both magnetic and…”
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Electronic phase separation in the slightly underdoped iron pnictide superconductor Ba1-xKxFe2As2 by Park, J T, Inosov, D S, Niedermayer, Ch, Sun, G L, Haug, D, Christensen, N B, Dinnebier, R, Boris, A V, Drew, A J, Schulz, L, Shapoval, T, Wolff, U, Neu, V, Yang, Xiaoping, Lin, C T, Keimer, B, Hinkov, V

“…Here we present a combined study of the slightly underdoped novel pnictide superconductor Ba1-xKxFe2As2 by means of x-ray powder diffraction, neutron…”
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Doping-dependent photon scattering resonance in the model high-temperature superconductor HgBa2CuO4+δ revealed by Raman scattering and optical ellipsometry by Li, Yuan, Le Tacon, M, Matiks, Y, Boris, A V, Loew, T, Lin, C T, Chen, Lu, Chan, M K, Dorow, C, Ji, L, Barišić, N, Zhao, X, Greven, M, Keimer, B

“…We study the model high-temperature superconductor HgBa(2)CuO(4+δ) with electronic Raman scattering and optical ellipsometry over a wide doping range. The…”
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Large resistivity change and phase transition in the antiferromagnetic semiconductors LiMnAs and LaOMnAs by Beleanu, A., Kiss, J., Kreiner, G., Köhler, C., Müchler, L., Schnelle, W., Burkhardt, U., Chadov, S., Medvediev, S., Ebke, D., Felser, C., Cordier, G., Albert, B., Hoser, A., Bernardi, F., Larkin, T. I., Pröpper, D., Boris, A. V., Keimer, B.

“…Antiferromagnetic semiconductors are new alternative materials for spintronic applications and spin valves. In this work, we report a detailed investigation of…”
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Fano Resonances in the Infrared Spectra of Phonons in Hyperkagome Na 3 Ir 3 O 8 by Pröpper, D., Yaresko, A. N., Larkin, T. I., Stanislavchuk, T. N., Sirenko, A. A., Takayama, T., Matsumoto, A., Takagi, H., Keimer, B., Boris, A. V.

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Signatures of electronic correlations in optical properties of LaFeAsO1-xFx by Boris, A V, Kovaleva, N N, Seo, S S A, Kim, J S, Popovich, P, Matiks, Y, Kremer, R K, Keimer, B

“…Spectroscopic ellipsometry is used to determine the dielectric function of superconducting LaFeAsO0.9F0.1 (T_{c}=27 K) and undoped LaFeAsO polycrystalline…”
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Ferromagnetism and Conductivity in Atomically Thin SrRuO 3 by Boschker, H., Harada, T., Asaba, T., Ashoori, R., Boris, A. V., Hilgenkamp, H., Hughes, C. R., Holtz, M. E., Li, L., Muller, D. A., Nair, H., Reith, P., Renshaw Wang, X., Schlom, D. G., Soukiassian, A., Mannhart, J.

“…Atomically thin ferromagnetic and conducting electron systems are highly desired for spintronics, because they can be controlled with both magnetic and…”
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