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1دورية أكاديمية
المؤلفون: Cao, X. G., Kim, E. J., Schmidt, K., Hagel, K., Barbui, M., Gauthier, J., Wuenschel, S., Giuliani, G., Rodriguez, M. R. D., Kowalski, S., Zheng, H., Huang, M., Bonasera, A., Wada, R., Blando, N., Zhang, G. Q., Wong, C. Y., Staszczak, A., Ren, Z. X., Wang, Y. K., Zhang, S. Q., Meng, J., Natowitz, J. B.
المساهمون: U.S. Department of Energy, Oak Ridge National Laboratory, Welch Foundation, Chinese Academy of Sciences, National Natural Science Foundation of China, Youth Innovation Promotion Association of the Chinese Academy of Sciences, Office of Science
المصدر: Physical Review C ; volume 99, issue 1 ; ISSN 2469-9985 2469-9993
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2دورية أكاديمية
المؤلفون: Wong, Cheuk-Yin, Staszczak, Andrzej
المساهمون: U.S. Department of Energy
المصدر: Physical Review C ; volume 98, issue 3 ; ISSN 2469-9985 2469-9993
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3دورية أكاديمية
المؤلفون: Staszczak, A., Wong, Cheuk-Yin, Kosior, A.
المساهمون: U.S. Department of Energy, Narodowe Centrum Nauki
المصدر: Physical Review C ; volume 95, issue 5 ; ISSN 2469-9985 2469-9993
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4دورية أكاديمية
المؤلفون: McDonnell, J. D., Nazarewicz, W., Sheikh, J. A., Staszczak, A., Warda, M.
المساهمون: U.S. Department of Energy, National Nuclear Security Administration
المصدر: Physical Review C ; volume 90, issue 2 ; ISSN 0556-2813 1089-490X
مصطلحات موضوعية: Nuclear and High Energy Physics
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5دورية أكاديمية
المؤلفون: Staszczak, G., Trzeciakowski, W., Monroy, E., Bercha, A., Muzioł, G., Skierbiszewski, C., Perlin, P., Suski, T.
المصدر: Physical Review B ; volume 101, issue 8 ; ISSN 2469-9950 2469-9969
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6دورية أكاديمية
المؤلفون: Staszczak, A., Baran, A., Nazarewicz, W.
المساهمون: U.S. Department of Energy
المصدر: Physical Review C ; volume 87, issue 2 ; ISSN 0556-2813 1089-490X
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7
المؤلفون: Piotr Perlin, Tadeusz Suski, Artem Bercha, G. Staszczak, Witold Trzeciakowski, Eva Monroy, Czeslaw Skierbiszewski, Grzegorz Muziol
المساهمون: Institute of High Pressure Physics [Warsaw] (IHPP), Polska Akademia Nauk = Polish Academy of Sciences (PAN), Nanophysique et Semiconducteurs (NPSC), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), TopGaN
المصدر: Physical Review B
Physical Review B, American Physical Society, 2020, 101 (8), pp.314-319. ⟨10.1103/PhysRevB.101.085306⟩
Physical Review B, 2020, 101 (8), pp.314-319. ⟨10.1103/PhysRevB.101.085306⟩مصطلحات موضوعية: [PHYS]Physics [physics], Physics, Photoluminescence, Condensed matter physics, Exciton, Hydrostatic pressure, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Pressure coefficient, [SPI]Engineering Sciences [physics], Cover (topology), 0103 physical sciences, 010306 general physics, 0210 nano-technology, Excitation, Quantum well, Energy (signal processing)
الوصف: We analyze the evolution of the exciton recombination energy ${E}_{\mathrm{PL}}$ and its pressure coefficient $d{E}_{\mathrm{PL}}/dp$, with the laser power density (LPD) exciting excitonic photoluminescence. Two $\mathrm{I}{\mathrm{n}}_{0.17}\mathrm{G}{\mathrm{a}}_{0.83}\mathrm{N}/\mathrm{GaN}$ quantum well (QW) structures are used: sample A consisting of a 5.2-nm-wide single QW and sample B consisting of two 2.6-nm-wide QWs separated by a 0.78-nm-thick barrier. Changes of ${E}_{\mathrm{PL}}$ and $d{E}_{\mathrm{PL}}/dp$ with LPD in both structures cover a wide range of magnitude. They switch character in the vicinity of the indirect to direct exciton induced by increasing LPD. In sample B, at low excitation, a negative pressure coefficient of ${E}_{\mathrm{PL}}$ has been found. Moreover, pressure dependences of ${E}_{\mathrm{PL}}$ are different for the two samples under study. We examined pressure dependence of the threshold LPD for indirect-direct exciton switching in both samples. The reported observations originate to a high extent from screening of a built-in electric field by carriers externally introduced into the quantum wells. We also note that the universal relation between transition energies and their pressure coefficients (observed previously in InGaN/GaN quantum wells) does not hold for samples modified by screening.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfdd0c81110edaeabd1e13933d37da2cTest
https://doi.org/10.1103/physrevb.101.085306Test -
8دورية أكاديمية
المؤلفون: Warda, M., Staszczak, A., Nazarewicz, W.
المساهمون: U.S. Department of Energy
المصدر: Physical Review C ; volume 86, issue 2 ; ISSN 0556-2813 1089-490X
مصطلحات موضوعية: Nuclear and High Energy Physics
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9دورية أكاديمية
المؤلفون: Baran, A., Sheikh, J. A., Dobaczewski, J., Nazarewicz, W., Staszczak, A.
المساهمون: U.S. Department of Energy
المصدر: Physical Review C ; volume 84, issue 5 ; ISSN 0556-2813 1089-490X
مصطلحات موضوعية: Nuclear and High Energy Physics
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10
المؤلفون: R. Wada, Mei-Rong Huang, S. Kowalski, E. J. Kim, J. Gauthier, K. Hagel, M. R. D. Rodriguez, Z. X. Ren, K. Schmidt, M. Barbui, Jie Meng, Cheuk-Yin Wong, N. Blando, Andrzej Staszczak, J. B. Natowitz, Shishu Zhang, X. Cao, Aldo Bonasera, Y. K. Wang, G. Q. Zhang, S. Wuenschel, G. Giuliani, Hua Zheng
المصدر: Physical Review C. 99
مصطلحات موضوعية: Physics, Excitation function, education.field_of_study, Toroid, Excited state, Population, Atomic physics, Nuclear Experiment, education, Nucleon, Energy (signal processing), Excitation
الوصف: The experimental excitation function for the $7\ensuremath{\alpha}$ de-excitation of $^{28}\mathrm{Si}$ nuclei excited to high excitation energies in the collisions of 35 MeV/nucleon $^{28}\mathrm{Si}$ with $^{12}\mathrm{C}$ reveals resonance structures. The possibility that these structures may indicate the population of toroidal high-spin isomers such as those predicted by a number of recent theoretical calculations is discussed and the need for further investigations is emphasized.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::c555db1856e237694fd4e980f41b974dTest
https://doi.org/10.1103/physrevc.99.014606Test
