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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

Journal Articles

Nature of dynamic ferrite transformation revealed by ${it in-situ}$ neutron diffraction analysis during thermomechanical processing

Shibata, Akinobu*; Takeda, Yasunari*; Park, N.*; Zhao, L.*; Harjo, S.; Kawasaki, Takuro; Gong, W.*; Tsuji, Nobuhiro*

Scripta Materialia, 165, p.44 - 49, 2019/05

 Times Cited Count:27 Percentile:84.79(Nanoscience & Nanotechnology)

Journal Articles

Uniaxial pressure effect on the magnetic ordered moment and transition temperatures in BaFe$$_{2-x}$$T$$_{x}$$As$$_{2}$$ ($$T$$ = Co,Ni)

Tam, D. M.*; Song, Y.*; Man, H.*; Cheung, S. C.*; Yin, Z.*; Lu, X.*; Wang, W.*; Frandsen, B. A.*; Liu, L.*; Gong, Z.*; et al.

Physical Review B, 95(6), p.060505_1 - 060505_6, 2017/02

 Times Cited Count:23 Percentile:72.23(Materials Science, Multidisciplinary)

Journal Articles

Phase behavior and Li$$^{+}$$ ion conductivity of styrene-ethylene oxide multiblock copolymer electrolytes

Sarapas, J. M.*; Saijo, Kenji*; Zhao, Y.; Takenaka, Mikihito*; Tew, G. N.*

Polymers for Advanced Technologies, 27(7), p.946 - 954, 2016/07

 Times Cited Count:9 Percentile:36.61(Polymer Science)

Journal Articles

Elucidation of the morphology of the hydrocarbon multi-block copolymer electrolyte membranes for proton exchange fuel cells

Zhao, Y.; Yoshida, Miru*; Oshima, Tatsuya*; Koizumi, Satoshi*; Rikukawa, Masahiro*; Szekely, N.*; Radulescu, A.*; Richter, D.*

Polymer, 86, p.157 - 167, 2016/03

 Times Cited Count:13 Percentile:45.28(Polymer Science)

Journal Articles

Imidazolium-based anion exchange membranes for alkaline anion fuel cells; Elucidation of the morphology and the interplay between the morphology and properties

Zhao, Y.; Yoshimura, Kimio; Shishitani, Hideyuki*; Yamaguchi, Susumu*; Tanaka, Hirohisa*; Koizumi, Satoshi*; Szekely, N.*; Radulescu, A.*; Richter, D.*; Maekawa, Yasunari

Soft Matter, 12(5), p.1567 - 1578, 2016/02

 Times Cited Count:25 Percentile:80.09(Chemistry, Physical)

Journal Articles

Coherent control of single spins in silicon carbide at room temperature

Widmann, M.*; Lee, S.-Y.*; Rendler, T.*; Son, N. T.*; Fedder, H.*; Paik, S.*; Yang, L.-P.*; Zhao, N.*; Yang, S.*; Booker, I.*; et al.

Nature Materials, 14(2), p.164 - 168, 2015/02

 Times Cited Count:401 Percentile:99.55(Chemistry, Physical)

Journal Articles

Spatio-temporal evolution of the L$$rightarrow$$H and H$$rightarrow$$L transitions

Miki, Kazuhiro; Diamond, P. H.*; Fedorczak, N.*; G$"u$rcan, $"O$. D.*; Malkov, M.*; Lee, C.*; Kosuga, Yusuke*; Tynan, G. R.*; Xu, G. S.*; Estrada, T.*; et al.

Nuclear Fusion, 53(7), p.073044_1 - 073044_10, 2013/07

 Times Cited Count:24 Percentile:72.75(Physics, Fluids & Plasmas)

Understanding the L$$rightarrow$$H and H$$rightarrow$$L transitions is crucial to successful ITER operation. In this paper we present novel theoretical and modelling study results on the spatio-temporal dynamics of the transition. We place a special emphasis on the role of zonal flows and the micro$$rightarrow$$macro connection between dynamics and the power threshold dependences. The model studied evolves five coupled fields in time and one space dimension, in simplified geometry. The content of this paper is (a) the model fundamentals and the space-time evolution during the L$$rightarrow$$I$$rightarrow$$H transition, (b) the physics origin of the well-known $$nabla$$ B-drift asymmetry in power threshold, (c) the role of heat avalanches in the intrinsic variability of the L$$rightarrow$$H transition, (d) the dynamics of the H$$rightarrow$$L back transition and the physics of hysteresis.

Journal Articles

Anisotropic two-dimensional electron gas at the LaAlO$$_{3}$$/SrTiO$$_{3}$$ (110) interface

Annadi, A.*; Zhang, Q.*; Renshaw Wang, X.*; Tuzla, N.*; Gopinadhan, K.*; L$"u$, W. M.*; Roy Barman, A.*; Liu, Z. Q.*; Srivastava, A.*; Saha, S.*; et al.

Nature Communications (Internet), 4, p.1838_1 - 1838_7, 2013/05

 Times Cited Count:94 Percentile:94.69(Multidisciplinary Sciences)

Journal Articles

Plasma boundary and first-wall diagnostics in ITER

Pitcher, C. S.*; Andrew, P.*; Barnsley, R.*; Bertalot, L.*; Counsell, G. G.*; Encheva, A.*; Feder, R. E.*; Hatae, Takaki; Johnson, D. W.*; Kim, J.*; et al.

Journal of Nuclear Materials, 415(Suppl.1), p.S1127 - S1132, 2011/08

 Times Cited Count:0 Percentile:0.01(Materials Science, Multidisciplinary)

Journal Articles

Magnetic resonance studies of defects in electron-irradiated ZnO substrates

Son, N. T.*; Ivanov, I. G.*; Kuznetsov, A. Yu.*; Svensson, B. G.*; Zhao, Q. X.*; Willander, M.*; Morishita, Norio; Oshima, Takeshi; Ito, Hisayoshi; Isoya, Junichi*; et al.

Physica B; Condensed Matter, 401-402, p.507 - 510, 2007/12

 Times Cited Count:3 Percentile:17.99(Physics, Condensed Matter)

Defects in electron-irradiated (3, 6 MeV) ZnO substrates were investigated using optical detection of magnetic response (ODMR). The shallow donor and the Zn vacancy were detected. In addition, several ODMR centers with S=$$frac{1}{2}$$ were also observed. Among these, LU3 and LU4 shows a behavior as recombination centers. After annealing at 400$$^{circ}$$C, both LU3 and LU4 still remain in ZnO substrates.

Journal Articles

Recombination centers in as-grown and electron-irradiated ZnO substrates

Son, N. T.*; Ivanov, G.*; Kuznetsov, A.*; Svensson, B. G.*; Zhao, Q. X.*; Willander, M.*; Morishita, Norio; Oshima, Takeshi; Ito, Hisayoshi; Isoya, Junichi*; et al.

Journal of Applied Physics, 102(9), p.093504_1 - 093504_5, 2007/11

 Times Cited Count:18 Percentile:56.84(Physics, Applied)

Optical detection of magnetic resonance (ODMR) was performed to investigate defects in ZnO irradiated with 3 MeV electrons at room temperature. As a result, the Zn vacancy and some other centers were detected by ODMR. The Zn vacancy and two other centers whish are labeled as LU3 and LU4, were also commonly observed in different types of as-grown ZnO. Therefore, it can be concluded that the both LU3 and LU4 might be related to intrinsic defects, and they act as dominating recombination centers in irradiated and as-grown ZnO.

Journal Articles

Modeling long-term volcanic hazards through Bayesian inference; An example from the Tohoku volcanic arc, Japan

Martin, A. J.*; Umeda, Koji; Conner, C. B.*; Weller, J. N.*; Zhao, D.*; Takahashi, Masaki*

Journal of Geophysical Research; Solid Earth, 109(B10), p.B10208_1 - B10208_20, 2004/10

 Times Cited Count:60 Percentile:73.16(Geochemistry & Geophysics)

We achieve this using Bayesian inference in order to combine one or more sets of information (geophysical data) to a priori assumptions of volcano spatio-temporal distributions yielding modified a posteriori probabilities.

Journal Articles

Geotectonic environment of the geothermal area in the non-volcanic region, southwest Japan

Umeda, Koji; Asamori, Koichi; Oikawa, Teruki; Kakuta, Chifumi; Zhao, N.*; Kamaya, Noriko*

Gekkan Chikyu, 26(6), p.407 - 413, 2004/06

None

Oral presentation

Warming effect on soil organic carbon release and its feedback to carbon cycle in Asian forest ecosystems

Liang, N.*; Takahashi, Yoshiyuki*; Teramoto, Munemasa*; Zhao, X.*; Tomimatsu, Hajime*; Takagi, Kentaro*; Hirano, Takashi*; Kondo, Toshiaki*; Koarashi, Jun; Atarashi-Andoh, Mariko; et al.

no journal, , 

no abstracts in English

Oral presentation

Long-term warming effect on soil carbon fluxes in a red pine forest in Tsukuba

Teramoto, Munemasa*; Liang, N.*; Jiye, Z.*; Koarashi, Jun; Kondo, Toshiaki*; Atarashi-Andoh, Mariko; Aramaki, Takafumi*; Zhao, X.*

no journal, , 

Forest soils are a large source for CO$$_{2}$$ and sink for CH$$_{4}$$. Understanding long-term response of these soil carbon fluxes to warmer environment is the key to mitigation and adaptation for future climate change. To examine the long-term response of CO$$_{2}$$ flux to global warming in Asian monsoon forests, we set multi-channel automated chamber measurement system in a red pine forest in Tsukuba. Half of the chambers were artificially warmed by infrared heaters. Recently, we started continuous measurement of soil CH$$_{4}$$ flux using a control unit with CH$$_{4}$$ analyzer. Results showed that soil temperature is the primary factor controlling soil CO$$_{2}$$ fluxes, whereas soil moisture is the main factor controlling soil CH$$_{4}$$ uptake in our study site.

Oral presentation

Evaluation of long-term soil warming effect on soil organic carbon decomposition

Teramoto, Munemasa*; Kondo, Toshiaki*; Liang, N.*; Zeng, J.*; Nakane, Kaneyuki*; Koarashi, Jun; Atarashi-Andoh, Mariko; Aramaki, Takafumi*; Tomimatsu, Hajime*; Zhao, X.*

no journal, , 

no abstracts in English

Oral presentation

Comprehensive field study on Asian forest soil carbon dynamics

Liang, N.*; Teramoto, Munemasa*; Takagi, Kentaro*; Kondo, Toshiaki*; Koarashi, Jun; Atarashi-Andoh, Mariko; Hirano, Takashi*; Takahashi, Yoshiyuki*; Takagi, Masahiro*; Ishida, Sachinobu*; et al.

no journal, , 

no abstracts in English

Oral presentation

Temporal and spatial variation of soil CO$$_{2}$$/CH$$_{4}$$ fluxes in two cool-temperate forests in Japan

Sun, L.*; Liang, N.*; Hirano, Takashi*; Takahashi, Yoshiyuki*; Teramoto, Munemasa*; Takagi, Kentaro*; Kondo, Toshiaki*; Koarashi, Jun; Atarashi-Andoh, Mariko; Ide, Reiko*; et al.

no journal, , 

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