Refine your search:     
Report No.
 - 
Search Results: Records 1-20 displayed on this page of 27

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Two-dimensional quantum universality in the spin-1/2 triangular-lattice quantum antiferromagnet Na$$_{2}$$BaCo(PO$$_{4}$$)$$_{2}$$

Sheng, J.*; Wang, L.*; Candini, A.*; Jiang, W.*; Huang, L.*; Xi, B.*; Zhao, J.*; Ge, H.*; Zhao, N.*; Fu, Y.*; et al.

Proceedings of the National Academy of Sciences of the United States of America, 119(51), p.e2211193119_1 - e2211193119_9, 2022/12

 Times Cited Count:3 Percentile:28(Multidisciplinary Sciences)

Journal Articles

Development of safety design criteria and safety design guidelines for Generation IV sodium-cooled fast reactors

Futagami, Satoshi; Kubo, Shigenobu; Sofu, T.*; Ammirabile, L.*; Gauthe, P.*

Proceedings of International Conference on Topical Issues in Nuclear Installation Safety; Strengthening Safety of Evolutionary and Innovative Reactor Designs (TIC 2022) (Internet), 10 Pages, 2022/10

Journal Articles

Two-step Mott transition in Ni(S,Se)$$_2$$; $$mu$$SR studies and charge-spin percolation model

Sheng, Q.*; Kaneko, Tatsuya*; Yamakawa, Kohtaro*; Guguchia, Z.*; Gong, Z.*; Zhao, G.*; Dai, G.*; Jin, C.*; Guo, S.*; Fu, L.*; et al.

Physical Review Research (Internet), 4(3), p.033172_1 - 033172_14, 2022/09

Journal Articles

Temporally decoherent and spatially coherent vibrations in metal halide perovskites

Zhang, D.*; Hu, X.*; Chen, T.*; Abernathy, D. L.*; Kajimoto, Ryoichi; Nakamura, Mitsutaka; Kofu, Maiko; Foley, B. J.*; Yoon, M.*; Choi, J. J.*; et al.

Physical Review B, 102(22), p.224310_1 - 224310_10, 2020/12

 Times Cited Count:4 Percentile:26.53(Materials Science, Multidisciplinary)

Journal Articles

DMFT reveals the non-Hermitian topology and Fermi arcs in heavy-fermion systems

Nagai, Yuki; Qi, Y.*; Isobe, Hiroki*; Kozii, V.*; Fu, L.*

Physical Review Letters, 125(22), p.227204_1 - 227204_7, 2020/11

 Times Cited Count:48 Percentile:94.52(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Nanoscale relaxation in "Water-in-Salt" and "Water-in-Bisalt" electrolytes

Gonzal$'e$z, M. A.*; Borodin, O.*; Kofu, Maiko; Shibata, Kaoru; Yamada, Takeshi*; Yamamuro, Osamu*; Xu, K.*; Price, D. L.*; Saboungi, M.-L.*

Journal of Physical Chemistry Letters (Internet), 11(17), p.7279 - 7284, 2020/09

 Times Cited Count:16 Percentile:77.33(Chemistry, Physical)

Journal Articles

GIF risk and safety working group; Application of the ISAM methodology to Gen-IV nuclear systems

Okano, Yasushi; Ammirabile, L.*; Sofu, T.*

2018 GIF Symposium Proceedings (Internet), p.253 - 262, 2020/05

GIF ISAM (Integrated Safety Assessment Methodology) includes five analytical tools (i.e. QSR, PIRT, OPT, DPA, PSA) and it is intended that each tool be used to answer specific safety-related questions with different levels of detail during various design stages and the ISAM as a whole offers flexibility and a graded approach to analyse technical issues of complex system architectures. Although each tool can be selected for individual and exclusive use, the full value of the integrated methodology is derived from using all tools, in an iterative fashion and in combination with the others, throughout the design process. The paper describes what is ISAM and pilot examples of individual use of QSR, PIRT and OPT and also combination application of DPA-PSA.

Journal Articles

Ultralow thermal conductivity from transverse acoustic phonon suppression in distorted crystalline $$alpha$$-MgAgSb

Li, X.*; Liu, P.-F.*; Zhao, E.*; Zhang, Z.*; Guide, T.*; Le, M. D.*; Avdeev, M.*; Ikeda, Kazutaka*; Otomo, Toshiya*; Kofu, Maiko; et al.

Nature Communications (Internet), 11, p.942_1 - 942_9, 2020/02

 Times Cited Count:36 Percentile:90.35(Multidisciplinary Sciences)

In high-performance thermoelectric materials, there are two main low thermal conductivity mechanisms: the phonon anharmonic and phonon scattering resulting from the dynamic disorder, which have been successfully revealed by inelastic neutron scattering. Using neutron scattering and ab initio calculations, we report here a mechanism of static local structure distortion combined with phonon-anharmonic-induced ultralow lattice thermal conductivity in $$alpha$$-MgAgSb. Since the transverse acoustic phonons are almost fully scattered by the intrinsic distorted rocksalt sublattice in this compound, the heat is mainly transported by the longitudinal acoustic phonons. The ultralow thermal conductivity in $$alpha$$-MgAgSb is attributed to its atomic dynamics being altered by the structure distortion, which presents a possible microscopic route to enhance the performance of similar thermoelectric materials.

Journal Articles

Investigation of the electronic structure and lattice dynamics of the thermoelectric material Na-doped SnSe

Wu, P.*; Zhang, B.*; Peng, K. L.*; Hagiwara, Masayuki*; Ishikawa, Yoshihisa*; Kofu, Maiko; Lee, S. H.*; Kumigashira, Hiroshi*; Hu, C. S.*; Qi, Z. M.*; et al.

Physical Review B, 98(9), p.094305_1 - 094305_7, 2018/09

 Times Cited Count:11 Percentile:45.99(Materials Science, Multidisciplinary)

Using angle-resolved photoemission spectroscopy and inelastic neutron scattering, we have studied how electronic structures and lattice dynamics evolve with temperature in Na-doped SnSe.

Journal Articles

Self-learning Monte Carlo method; Continuous-time algorithm

Nagai, Yuki; Shen, H.*; Qi, Y.*; Liu, J.*; Fu, L.*

Physical Review B, 96(16), p.161102_1 - 161102_6, 2017/10

 Times Cited Count:54 Percentile:89.54(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Cross-shell excitations from the $$fp$$ shell; Lifetime measurements in $$^{61}$$Zn

Queiser, M.*; Vogt, A.*; Seidlitz, M.*; Reiter, P.*; Togashi, Tomoaki*; Shimizu, Noritaka*; Utsuno, Yutaka; Otsuka, Takaharu*; Homma, Michio*; Petkov, P.*; et al.

Physical Review C, 96(4), p.044313_1 - 044313_13, 2017/10

 Times Cited Count:5 Percentile:41.41(Physics, Nuclear)

no abstracts in English

Journal Articles

Hydroxyl radical, sulfate radical and nitrate radical reactivity towards crown ethers in aqueous solutions

Wan, L. K.*; Peng, J.*; Lin, M.; Muroya, Yusa*; Katsumura, Yosuke*; Fu, H. Y.*

Radiation Physics and Chemistry, 81(5), p.524 - 530, 2012/05

 Times Cited Count:16 Percentile:75.52(Chemistry, Physical)

Rate constants of common crown ethers ((C$$_{2}$$H$$_{4}$$O)$$_{n}$$, n=4, 5, 6) and their model compound, 1,4-dioxane(6C2) with some important oxidative radicals, $$^{cdot}$$OH, SO$$_{4}^{cdot-}$$, and NO$$_{3}^{cdot}$$ were determined in various aqueous solutions using pulse radiolysis and laser photolysis techniques. The rate constants for 6C2 and crown ethers with $$^{cdot}$$OH and SO$$_{4}^{cdot-}$$ increase with the number of H-atom in the ethers, indicating that H-abstraction is dominant reaction between crown ethers and these two radicals. The presence of cations in solution has negligible effect on the rate constants for $$^{cdot}$$OH and SO$$_{4}^{cdot-}$$. However, for NO$$_{3}^{cdot}$$, the rate constants is not in proportional to H-atom number in crown ethers, and the 12-crown-4 is most reactive compared with the others. For the studied crown ethers, the rate constants of these oxidative radicals have the order: $$^{cdot}$$OH $$>$$ SO$$_{4}^{cdot-}$$ $$>$$ NO$$_{3}^{cdot}$$. This is the first report on the kinetic behavior of crown ethers with NO$$_{3}^{cdot}$$, and it would be helpful for the understanding of stability of crown ethers in the nuclear fuel reprocessing.

Journal Articles

Nitration activates tyrosine toward reaction with the hydrated electron

Shi, W.-Q.*; Fu, H.-Y.*; Bounds, P. L.*; Muroya, Yusa*; Lin, M.; Katsumura, Yosuke*; Zhao, Y.-L.*; Chai, Z.-F.*

Radiation Research, 176(1), p.128 - 133, 2011/07

 Times Cited Count:3 Percentile:17.22(Biology)

3-Nitrotyrosine (3-NT) has been reported as an important biomarker of oxidative stress and potential source of reactive oxygen species (ROSs). In this work, the UV-visible absorption spectra of the transients formed by hydrated electron (e$$_{rm aq}$$$$^{-}$$) reacting with 3-NT and its derivatives were investigated, the spectra showed many characteristics of aromatic nitro anion radical. The reaction rate constants of e$$_{rm aq}$$$$^{-}$$ reacting with 3-NT, N-acetyl-3-nitrotyrosine ethyl ester (NANTE) and nitrotyrosine-containing peptide Gly-nitroTyr-Gly at neutral pH were determined, respectively, which were almost two orders of magnitude higher than that of tyrosine and tyrosine-containing peptides. The pH-dependence of e$$_{rm aq}$$$$^{-}$$ decay rate constants in presence of 3-NT was also studied.

Oral presentation

Difference of results obtained with high and low Andersen sampler respectively in the research of atmospheric aerosols

Fu, F.; Watanabe, Kazuo; Wu, Y.*; Xiao, L.*; Xu, X.*; Shinohara, Nobuo

no journal, , 

no abstracts in English

Oral presentation

$$gamma$$-ray irradiation and electron-beam pulse radiolysis study of $$kappa$$-carrageenan

Abad, L.*; Kudo, Hisaaki*; Saiki, Seiichi; Nagasawa, Naotsugu; Tamada, Masao; Fu, H.*; Muroya, Yusa*; Lin, M.; Katsumura, Yosuke*; Dela Rosa, A. M.*

no journal, , 

The radiation degradation yield of $$kappa$$-carrageenan irradiated at atmospheric conditions, in vacuum and at 1% aqueous solutions was determined by GPC. UV-Vis characterization of irradiated $$kappa$$-carrageenan for all irradiation conditions indicated a UV-Vis peak at 260nm. The rate constant of reaction of OH radicals with sonicated and irradiated $$kappa$$-carrageenan with decreasing molecular weights were determined using e-beam pulse radiolysis.

Oral presentation

Self-learning continuous-time quantum Monte Carlo method

Nagai, Yuki; Shen, H.*; Qi, Y.*; Liu, J.*; Fu, L.*

no journal, , 

no abstracts in English

Oral presentation

Self-learning continuous-time Monte Carlo method; High-speed Markov-chain Monte Carlo method with machine learning techniques

Nagai, Yuki; Shen, H.*; Qi, Y.*; Liu, J.*; Fu, L.*

no journal, , 

no abstracts in English

Oral presentation

Self-learning Monte Carlo method

Nagai, Yuki; Shen, H.*; Qi, Y.*; Liu, J.*; Fu, L.*

no journal, , 

no abstracts in English

Oral presentation

Bulk Fermi arcs in heavy fermion systems

Nagai, Yuki; Qi, Y.*; Isobe, Hiroki*; Kozii, V.*; Fu, L.*

no journal, , 

no abstracts in English

Oral presentation

Bulk Topological Fermi arcs in heavy fermion systems

Nagai, Yuki; Qi, Y.*; Isobe, Hiroki*; Kozii, V.*; Fu, L.*

no journal, , 

no abstracts in English

27 (Records 1-20 displayed on this page)