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Journal Articles

MIRS: an imaging spectrometer for the MMX mission

Barucci, M. A.*; Reess, J.-M.*; Bernardi, P.*; Doressoundiram, A.*; Fornasier, S.*; Le Du, M.*; Iwata, Takahiro*; Nakagawa, Hiromu*; Nakamura, Tomoki*; Andr$'e$, Y.*; et al.

Earth, Planets and Space (Internet), 73(1), p.211_1 - 211_28, 2021/12

https://doi.org/10.1186/s40623-021-01423-2
 Times Cited Count：30 Percentile：86.73(Geosciences, Multidisciplinary)

The MMX InfraRed Spectrometer (MIRS) is an imaging spectrometer on board of MMX JAXA mission. MIRS is built at LESIA-Paris Observatory in collaboration with four other French laboratories, collaboration and financial support of CNES and close collaboration with JAXA and MELCO. The instrument is designed to fully accomplish MMX's scientific and measurement objectives. MIRS will remotely provide near-infrared spectral maps of Phobos and Deimos containing compositional diagnostic spectral features that will be used to analyze the surface composition and to support the sampling site selection. MIRS will also study Mars atmosphere, in particular to spatial and temporal changes such as clouds, dust and water vapor.

Journal Articles

Temperature and composition phase diagram in the iron-based ladder compounds Ba$$_{1-x}$$Cs$$_{x}$$Fe$$_{2}$$Se$$_{3}$$

Hawai, Takafumi*; Nambu, Yusuke*; Ogushi, Kenya*; Du, F.*; Hirata, Yasuyuki*; Avdeev, M.*; Uwatoko, Yoshiya; Sekine, Yurina; Fukazawa, Hiroshi; Ma, J.*; et al.

Physical Review B, 91(18), p.184416_1 - 184416_11, 2015/05

https://doi.org/10.1103/PhysRevB.91.184416
 Times Cited Count：17 Percentile：54.78(Materials Science, Multidisciplinary)

We investigated the iron-based ladder compounds (Ba, Cs)Fe$$_{2}$$Se$$_{3}$$, whose parent compounds, BaFe$$_{2}$$Se$$_{3}$$ and CsFe$$_{2}$$Se$$_{3}$$, have different space groups, formal valences of Fe and magnetic structures. Electrical resistivity, specific heat, magnetic susceptibility, X-ray diffraction and powder neutron diffraction measurements were conducted to obtain the temperature and composition phase diagram of this system. Block magnetism seen in BaFe$$_{2}$$Se$$_{3}$$ is drastically suppressed with Cs doping. In contrast, stripe magnetism observed in CsFe$$_{2}$$Se$$_{3}$$ more resilient to Ba doping. Novel magnetic structure appears in intermediate compositions, which is similar to the stripe magnetism of CsFe$$_{2}$$Se$$_{3}$$ but with different inter-ladder spin configuration. Intermediate compounds show insulating behavior, nevertheless finite T-linear contribution in specific heat was obtained at low temperature.

Journal Articles

Quantum error correction in a solid-state hybrid spin register

Waldherr, G.*; Wang, Y.*; Zaiser, S.*; Jamali, M.*; Schulte-Herbr$"u$ggen, T.*; Abe, Hiroshi; Oshima, Takeshi; Isoya, Junichi*; Du, J. F.*; Neumann, P.*; et al.

Nature, 506(7487), p.204 - 207, 2014/02

https://doi.org/10.1038/nature12919
 Times Cited Count：486 Percentile：99.57(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Block magnetism coupled with local distortion in the iron-based spin-ladder compound BaFe$$_{2}$$Se$$_{3}$$

Nambu, Yusuke*; Ogushi, Kenya*; Suzuki, Shumpei*; Du, F.*; Avdeev, M.*; Uwatoko, Yoshiya*; Munakata, Koji*; Fukazawa, Hiroshi; Chi, S.*; Ueda, Yutaka*; et al.

Physical Review B, 85(6), p.064413_1 - 064413_5, 2012/02

https://doi.org/10.1103/PhysRevB.85.064413
 Times Cited Count：81 Percentile：91.87(Materials Science, Multidisciplinary)

Magnetism in the insulating BaFe$$_{2}$$Se$$_{3}$$ was examined through susceptibility, specific heat, resistivity and neutron diffraction measurements. After formation of a short-range magnetic correlation, a long-range ordering was observed below $$T_{rm N}$$ $$sim$$ 255 K. The transition is obscured by bulk properties. Magnetic moments are arranged to form a Fe$$_{4}$$ ferromagnetic unit, and each Fe$$_{4}$$ stacks antiferromagnetically. This block magnetism is of the third type among magnetic structures of ferrous materials. The magnetic ordering drives unusually large distortion via magnetoelastic coupling.

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