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Journal Articles

Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes; Coulomb excitation of $$^{182}$$Hg, $$^{184}$$Hg, $$^{186}$$Hg and $$^{188}$$Hg

Wrzosek-Lipska, K.*; Rezynkina, K.*; Bree, N.*; Zieli$'n$ska, M.*; Gaffney, L. P.*; Petts, A.*; Andreyev, A. N.; Bastin, B.*; Bender, M.*; Blazhev, A.*; et al.

European Physical Journal A, 55(8), p.130_1 - 130_23, 2019/08

 Times Cited Count:4 Percentile:20.16(Physics, Nuclear)

Journal Articles

Detailed $$alpha$$-decay study of $$^{180}$$Tl

Andel, B.*; Andreyev, A.; Antalic, S.*; Barzakh, A.*; Bree, N.*; Cocolios, T. E.*; Comas, V. F.*; Diriken, J.*; Elseviers, J.*; Fedorov, D. V.*; et al.

Physical Review C, 96(5), p.054327_1 - 054327_11, 2017/12

 Times Cited Count:0 Percentile:100(Physics, Nuclear)

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:12 Percentile:28.25(Materials Science, Multidisciplinary)

Journal Articles

Synthesis, structure, and pressure-induced polymerization of Li$$_{3}$$Fe(CN)$$_{6}$$ accompanied with enhanced conductivity

Li, K.*; Zheng, H.*; Hattori, Takanori; Sano, Asami; Tulk, C. A.*; Molaison, J.*; Feygenson, M.*; Ivanov, I. N.*; Yang, W.*; Mao, H.-K.*

Inorganic Chemistry, 54(23), p.11276 - 11282, 2015/12

 Times Cited Count:5 Percentile:63.23(Chemistry, Inorganic & Nuclear)

Pressure-induced polymerization of triple bonds would produce conductive conjugated double bonds. To find a metal cyanide with a low polymerization pressure, anhydrous Li$$_{3}$$Fe(CN)$$_{6}$$ is synthesized and its crystal structure is determined. The irreversible bonding between the CN$$^{-}$$ can be realized by use of the industrial apparatus. The conductivity is enhanced by more than 3 orders of magnitude, which makes the polymerized Li$$_{3}$$Fe(CN)$$_{6}$$ a potential cathode material for rechargeable lithium batteries.

Journal Articles

Collectivity in the light radon nuclei measured directly via Coulomb excitation

Gaffney, L. P.*; Robinson, A. P.*; Jenkins, D. G.*; Andreyev, A.; Bender, M.*; Blazhev, A.*; Bree, N.*; Bruyneel, B.*; Butler, P.*; Cocolios, T. E.*; et al.

Physical Review C, 91(6), p.064313_1 - 064313_11, 2015/06

 Times Cited Count:8 Percentile:36.85(Physics, Nuclear)

Journal Articles

$$beta$$-delayed fission of $$^{180}$$Tl

Elseviers, J.*; Andreyev, A. N.*; Huyse, M.*; Van Duppen, P.*; Antalic, S.*; Barzakh, A.*; Bree, N.*; Cocolios, T. E.*; Comas, V. F.*; Diriken, J.*; et al.

Physical Review C, 88(4), p.044321_1 - 044321_13, 2013/10

 Times Cited Count:29 Percentile:10.46(Physics, Nuclear)

Journal Articles

$$alpha$$-decay spectroscopy of the chain $$^{179}$$Tl$$^{g}$$ $$rightarrow$$ $$^{175}$$Au$$^{g}$$ $$rightarrow$$ $$^{171}$$Ir$$^{g}$$ $$rightarrow$$ $$^{167}$$Re$$^{m}$$

Andreyev, A. N.*; Liberati, V.*; Antalic, S.*; Ackermann, D.*; Barzakh, A.*; Bree, N.*; Cocolios, T. E.*; Diriken, J.*; Elseviers, J.*; Fedorov, D.*; et al.

Physical Review C, 87(5), p.054311_1 - 054311_8, 2013/05

 Times Cited Count:14 Percentile:26.58(Physics, Nuclear)

Journal Articles

Directional control of spin-wave emission by spatially shaped light

Sato, Takuya*; Terui, Yuki*; Moriya, Rai*; Ivanov, B. A.*; Ando, Kazuya*; Saito, Eiji; Shimura, Tsutomu*; Kuroda, Kazuo*

Nature Photonics, 6(10), p.662 - 666, 2012/10

 Times Cited Count:137 Percentile:0.9(Optics)

In future spintronics it is anticipated that spin waves will function as unique information carriers that are free from Joule heating. Directional control of spin-wave emission has been desired for the realization of switching devices. Here, we propose a promising technique that makes use of a spatially shaped light pulse with circular polarization. Focusing this light pulse on a magnet generates spin waves via the inverse Faraday effect. Moreover, the wave number distribution of the spin waves is determined by the spatial intensity distribution of the light spot. We demonstrate the principle of this technique both theoretically and experimentally. We successfully control the direction of the energy flow by shaping the light spot into an ellipse, with its major axis parallel or perpendicular to the magnetic field.

Journal Articles

New type of asymmetric fission in proton-rich nuclei

Andreyev, A. N.*; Elseviers, J.*; Huyse, M.*; Van Duppen, P.*; Antalic, S.*; Barzakh, A.*; Bree, N.*; Cocolios, T. E.*; Comas, V. F.*; Diriken, J.*; et al.

Physical Review Letters, 105(25), p.252502_1 - 252502_5, 2010/12

 Times Cited Count:139 Percentile:3.01(Physics, Multidisciplinary)

Journal Articles

On artificial frequency shifts in infrared spectra obtained from centroid molecular dynamics; Quantum liquid water

Ivanov, S. D.*; Witt, A.*; Shiga, Motoyuki; Marx, D.*

Journal of Chemical Physics, 132(3), p.031101_1 - 031101_4, 2010/01

 Times Cited Count:46 Percentile:12.41(Chemistry, Physical)

Centroid molecular dynamics, CMD, is a popular method to extract approximate quantum dynamics from path integral simulations. Here we provide evidence that for condensed phases, and in particular for liquid water, CMD produces pronounced artificial red-shifts for high-frequency vibrations such as the OH stretching band. This peculiar behavior intrinsic to the CMD method is improved after applying a simple "harmonic curvature correction".

Journal Articles

On the applicability of centroid and ring polymer path integral molecular dynamics for vibrational spectroscopy

Witt, A.*; Ivanov, S. D.*; Shiga, Motoyuki; Forbert, H.*; Marx, D.*

Journal of Chemical Physics, 130(19), p.194510_1 - 194510_15, 2009/05

 Times Cited Count:132 Percentile:1.39(Chemistry, Physical)

Centroid and Ring Polymer molecular dynamics, CMD and RPMD, are two conceptually distinct extensions of path integral molecular dynamics that are able to generate approximate quantum dynamics of complex molecular systems. Both methods can be used to compute quasi-classical time correlation functions which have direct application in molecular spectroscopy; in particular to infrared spectroscopy via dipole auto-correlation functions. The performance of both methods for computing vibrational spectra of several simple but representative molecular model systems is investigated systematically as a function of temperature and isotopic substitution.

Journal Articles

Angular tunneling ionization probability of fixed-in-space H$$_{2}$$ molecules in intense laser pulses

Staudte, A.*; Patchkovskii, S.*; Pavi$v{c}$i$'c$, D.*; Akagi, Hiroshi; Smirnova, O.*; Zeidler, D.*; Meckel, M.*; Villeneuve, D. M.*; D$"o$rner, R.*; Ivanov, M. Yu.*; et al.

Physical Review Letters, 102(3), p.033004_1 - 033004_4, 2009/01

 Times Cited Count:94 Percentile:5.09(Physics, 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:80.31(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:16 Percentile:43.19(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

Requirements for pellet injection in ITER scenarios with enhanced particle confinement

Polevoi, A. R.*; Shimada, Michiya; Sugihara, Masayoshi; Igitkhanov, Y. L.*; Mukhovatov, V.*; Kukushkin, A. S.*; Medvedev, S. Y.*; Zvonkov, A. V.*; Ivanov, A. A.*

Nuclear Fusion, 45(11), p.1451 - 1456, 2005/11

 Times Cited Count:25 Percentile:33.76(Physics, Fluids & Plasmas)

Requirements for pellet injection parameters for plasma fuelling are assessed for ITER scenarios with enhanced particle confinement. A pellet injection throughput of 100 Pam$$^{3}$$/s would be sufficient. The assessment is based on the integrated transport simulations including models of pedestal transport, reduction of helium transport and boundary conditions compatible with SOL/divertor simulations. The requirements for pellet injection for the inductive H-mode scenario (HH98(y,2) = 1) are reconsidered taking account of a possible reduction of the particle loss obtained in some experiments at low collisionalities. The assessment of fuelling requirements is carried out for the hybrid and steady state scenarios with enhanced confinement with HH98(y,2) $$>$$ 1. A robustness of plasma performance to the variation of particle transport is demonstrated. A new type of steady state (SS) scenario is considered with neutral beam current drive (NBCD) and electron cyclotron current drive (ECCD) instead of lower hybrid current drive (LHCD).

Oral presentation

Molecular frame angular distribution of tunnel ionization probability of HCl molecule determined by correlation measurement between electron and fragment ion

Akagi, Hiroshi; Staudte, A.*; Shiner, A.*; Turner, F.*; Villeneuve, D. M.*; Ivanov, M. Yu.*; Corkum, P. B.*

no journal, , 

Angular dependence of tunnel ionization from a molecule in a strong laser field reflects the structure of the molecular orbital the electron tunnels from. Ours are the first measurements for a heteronuclear molecule. To determine the angle, we use circularly polarized light and detect the electron and fragment ion in coincidence. Concentrating on HCl, bond softening allows us to select the tunnel ionization from HOMO-1. The angular distribution is consistent with the shape of the orbital, modified by a contribution from the dipole moment of the neutral molecule and its cation.

Oral presentation

Fission of proton-rich nuclei

Nishio, Katsuhisa; Andreyev, A. N.*; Elseviers, J.*; Huyse, M.*; Van Duppen, P.*; Antalic, S.*; Barzakh, A.*; Bree, N.*; Cocolios, T. E.*; Comas, V. F.*; et al.

no journal, , 

no abstracts in English

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