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Eaton, A. G.*; Weinberger, T. I.*; Popiel, N. J. M.*; Wu, Z.*; Hickey, A. J.*; Cabala, A.*; Posp
il, J.*; Prokle
ka, J.*; Haidamak, T.*; Bastien, G.*; et al.
Nature Communications (Internet), 15, p.223_1 - 223_10, 2024/01
Times Cited Count:42 Percentile:98.68(Multidisciplinary Sciences)
)
Jesche, A.*; Winterhalter-Stocker, N.*; Hirschberger, F.*; Bellon, A.*; Bachus, S.*; Tokiwa, Yoshifumi; Tsirlin, A. A.*; Gegenwart, P.*
Physical Review B, 107(10), p.104402_1 - 104402_8, 2023/03
Times Cited Count:42 Percentile:94.44(Materials Science, Multidisciplinary)Crystal structure, thermodynamic properties, and adiabatic demagnetization refrigeration (ADR) effect in the spin-1/2 triangular antiferromagnet KBaGd(BO
)
are reported. With the average nearest-neighbor exchange coupling of 44 mK, this compound shows magnetic order below
= 263 mK in zero field. The ADR tests reach the temperature of
= 122 mK, more than twice lower than
, along with the entropy storage capacity of 192 mJ K
cm
and the hold time of more than 8 h in the PPMS setup, both significantly improved compared to the spin-
Yb
analog. We argue that KBaGd(BO
)
shows a balanced interplay of exchange and dipolar couplings that together with structural randomness and geometrical frustration shift
to well below the ordering temperature
, therefore facilitating the cooling.
Yakushev, A.*; Lens, L.*; D
llmann, Ch. E.*; Khuyagbaatar, J.*; J
ger, E.*; Krier, J.*; Runke, J.*; Albers, H. M.*; Asai, Masato; Block, M.*; et al.
Frontiers in Chemistry (Internet), 10, p.976635_1 - 976635_11, 2022/08
Times Cited Count:31 Percentile:84.18(Chemistry, Multidisciplinary)Flerovium (Fl, element 114) is the heaviest element chemically studied so far. The first chemical experiment on Fl suggested that Fl is a noble-gas-like element, while the second studies suggested that Fl has a volatile-metal-like character. To obtain more reliable conclusion, we performed further experimental studies on Fl adsorption behavior on Si oxide and gold surfaces. The present results suggest that Fl is highly volatile and less reactive than the volatile metal, Hg, but has higher reactivity than the noble gas, Rn.
NoBronis, A.*; He
berger, F. P.*; Antalic, S.*; Andel, B.*; Ackermann, D.*; Heinz, S.*; Hofmann, S.*; Khuyagbaatar, J.*; Kindler, B.*; Kojouharov, I.*; et al.
Physical Review C, 106(1), p.014602_1 - 014602_12, 2022/07
Times Cited Count:12 Percentile:79.59(Physics, Nuclear)M
ri, A.*; Mazurek, M.*; Ota, Kunio; Siitari-Kauppi, M.*; Eichinger, F.*; Leuenberger, M.*
Minerals (Internet), 11(10), p.1072_1 - 1072_17, 2021/10
Times Cited Count:8 Percentile:44.40(Geochemistry & Geophysics)
-process nucleosynthesisBhattacharyya, A.*; Datta, U.*; Rahaman, A.*; Chakraborty, S.*; Aumann, T.*; Beceiro-Novo, S.*; Boretzky, K.*; Caesar, C.*; Carlson, B. V.*; Catford, W. N.*; et al.
Physical Review C, 104(4), p.045801_1 - 045801_14, 2021/10
Times Cited Count:8 Percentile:61.08(Physics, Nuclear)no abstracts in English
Khuyagbaatar, J.*; Yakushev, A.*; D
llmann, Ch. E.*; Ackermann, D.*; Andersson, L.-L.*; Asai, Masato; Block, M.*; Boll, R. A.*; Brand, H.*; Cox, D. M.*; et al.
Physical Review C, 102(6), p.064602_1 - 064602_9, 2020/12
Times Cited Count:98 Percentile:99.26(Physics, Nuclear)A search for production of the superheavy elements with atomic numbers 119 and 120 was performed in the
Ti+
Bk and
Ti+
Cf fusion-evaporation reactions, respectively, at the gas-filled recoil separator TASCA. Over four months of irradiation, neither was detected at cross-section sensitivity levels of 65 and 200 fb, respectively. The non-observation of elements 119 and 120 is discussed within the concept of fusion-evaporation reactions including various theoretical predictions on the fission-barrier heights of superheavy nuclei in the region of the island of stability.
-decay properties of
FrGhys, L.*; Andreyev, A. N.; Huyse, M.*; Van Duppen, P.*; Antalic, S.*; Barzakh, A.*; Capponi, L.*; Cocolios, T. E.*; Cubiss, J.*; Derkx, X.*; et al.
Physical Review C, 100(5), p.054310_1 - 054310_13, 2019/11
Times Cited Count:15 Percentile:74.06(Physics, Nuclear)
Ca+
Bk leading to formation of the element Ts (Z=117)Khuyagbaatar, J.*; Yakushev, A.*; D
llmann, Ch. E.*; Ackermann, D.*; Andersson, L.-L.*; Asai, Masato; Block, M.*; Boll, R. A.*; Brand, H.*; Cox, D. M.*; et al.
Physical Review C, 99(5), p.054306_1 - 054306_16, 2019/05
Times Cited Count:36 Percentile:92.25(Physics, Nuclear)We have performed an experiment to synthesize the element 117 (Ts) with the
Ca+
Bk fusion reaction. Four
-decay chains attributed to the element 117 were observed. Two of them were long decay chains which can be assigned to the one originating from the
decay of
Ts. The other two were short decay chains which are consistent with the one originating from the
decay of
Ts. We have compared the present results with the literature data, and found that our present results mostly confirmed the literature data, leading to the firm confirmation of the synthesis of the element 117.
At revealed by in-source laser spectroscopyBarzakh, A. E.*; Cubiss, J. G.*; Andreyev, A. N.; Seliverstov, M. D.*; Andel, B.*; Antalic, S.*; Ascher, P.*; Atanasov, D.*; Beck, D.*; Biero
, J.*; et al.
Physical Review C, 99(5), p.054317_1 - 054317_9, 2019/05
Times Cited Count:17 Percentile:77.68(Physics, Nuclear)
98 in multi-nucleon transfer reactions of
Ca+
CmDevaraja, H. M.*; Heinz, S.*; Beliuskina, O.*; Hofmann, S.*; Hornung, C.*; M
nzenberg, G.*; Ackermann, D.*; Gupta, M.*; Gambhir, Y. K.*; Henderson, R. A.*; et al.
European Physical Journal A, 55(2), p.25_1 - 25_9, 2019/02
Times Cited Count:18 Percentile:79.06(Physics, Nuclear)
and Au surfaces in preparation for chemical investigations on Cn, Nh, and Fl at TASCALens, L.*; Yakushev, A.*; D
llmann, Ch. E.*; Asai, Masato; Ballof, J.*; Block, M.*; David, H. M.*; Despotopulos, J.*; Di Nitto, A.*; Eberhardt, K.*; et al.
Radiochimica Acta, 106(12), p.949 - 962, 2018/12
Times Cited Count:14 Percentile:72.53(Chemistry, Inorganic & Nuclear)Online gas-solid adsorption studies with single atom quantities of Hg, Tl, and Pb on SiO
and Au surfaces were carried out using short-lived radioisotopes with half-lives in the range of 4-49 s. This is a model study to measure adsorption enthalpies of superheavy elements Cn, Nh, and Fl. The short-lived isotopes were produced and separated by the gas-filled recoil separator TASCA at GSI. The products were stopped in He gas, and flushed into gas chromatography columns made of Si detectors whose surfaces were covered by SiO
or Au. The short-lived Tl and Pb were successfully measured by the Si detectors with the SiO
surface at room temperature. On the other hand, the Hg did not adsorb on the SiO
surface, but adsorbed on the Au surface. The results demonstrated that the adsorption properties of short-lived Hg, Tl, and Pb could be studied with this setup, and that this method is applicable to the experiment for Cn, Nh, and Fl.
-delayed fission of
AmWilson, G. L.*; Takeyama, Mirei*; Andreyev, A. N.; Andel, B.*; Antalic, S.*; Catford, W. N.*; Ghys, L.*; Haba, Hiromitsu*; He
berger, F. P.*; Huang, M.*; et al.
Physical Review C, 96(4), p.044315_1 - 044315_7, 2017/10
Times Cited Count:12 Percentile:62.13(Physics, Nuclear)
Al via Coulomb breakupChakraborty, S.*; Datta, U.*; Aumann, T.*; Beceiro-Novo, S.*; Boretzky, K.*; Caesar, C.*; Carlson, B. V.*; Catford, W. N.*; Chartier, M.*; Cortina-Gil, D.*; et al.
Physical Review C, 96(3), p.034301_1 - 034301_9, 2017/09
Times Cited Count:4 Percentile:30.20(Physics, Nuclear)no abstracts in English
Es and
BkKonki, J.*; Khuyagbaatar, J.*; Uusitalo, J.*; Greenlees, P. T.*; Auranen, K.*; Badran, H.*; Block, M.*; Briselet, R.*; Cox, D. M.*; Dasgupta, M.*; et al.
Physics Letters B, 764, p.265 - 270, 2017/01
Times Cited Count:25 Percentile:84.00(Astronomy & Astrophysics)
-fission and recoil-
-
-fission events observed in the reaction
Ca +
AmForsberg, U.*; Rudolph, D.*; Andersson, L.-L.*; Di Nitto, A.*; D
llmann, Ch. E.*; Fahlander, C.*; Gates, J. M.*; Golubev, P.*; Gregorich, K. E.*; Gross, C. J.*; et al.
Nuclear Physics A, 953, p.117 - 138, 2016/09
Times Cited Count:59 Percentile:95.07(Physics, Nuclear)Alpha-decay chains observed in the element-115 production reactions of
Ca +
Am were investigated using a new data set consisting of our recently reported data obtained at GSI and previously reported ones at Dubna and LBNL. Short decay chains of recoil-
-(
)-fission type, fourteen of which were observed, and some of which were interpreted as the 2-neutron evaporation products
Mc, have been reassigned. It is plausible that most of them were assigned to the 3-neutron evaporation products
Mc whose decay chain would on the way have branches of EC decays followed by fission.
-delayed fission and
decay of
AtTruesdale, V. L.*; Andreyev, A. N.; Ghys, L.*; Huyse, M.*; Van Duppen, P.*; Sels, S.*; Andel, B.*; Antalic, S.*; Barzakh, A.*; Capponi, L.*; et al.
Physical Review C, 94(3), p.034308_1 - 034308_11, 2016/09
Times Cited Count:12 Percentile:60.60(Physics, Nuclear)Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; M
nzenberg, G.*; Antalic, S.*; Barth, W.*; Burkhard, K. G.*; Dahl, L.*; Eberhardt, K.*; et al.
European Physical Journal A, 52(6), p.180_1 - 180_34, 2016/06
Times Cited Count:225 Percentile:93.94(Physics, Nuclear)
Po and
PoAndel, B.*; Andreyev, A. N.; Antalic, S.*; He
berger, F. P.*; Ackermann, D.*; Hofmann, S.*; Huyse, M.*; Kalaninov
, Z.*; Kindler, B.*; Kojouharov, I.*; et al.
Physical Review C, 93(6), p.064316_1 - 064316_12, 2016/06
Times Cited Count:5 Percentile:34.99(Physics, Nuclear)Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; M
nzenberg, G.*; Antalic, S.*; Barth, W.*; Dahl, L.*; Eberhardt, K.*; Grzywacz, R.*; et al.
European Physical Journal A, 52(4), p.116_1 - 116_12, 2016/04
Times Cited Count:35 Percentile:87.95(Physics, Nuclear)