Neutron diffraction under 30T pulsed magnetic fields

Ohoyama, Kenji; Katoh, N.; Nojiri, Hiroyuki; Matsuda, Yasuhiro H.; Hiraka, Haruhiro; Ikeda, Kazuaki; Shimizu, Hirohiko M.

doi:10.1016/j.jmmm.2006.10.958

Cited by 10 publications

(4 citation statements)

References 4 publications

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“…A small magnet coil made of CuAg wire was mounted surrounding the crystal on a cryostat insert and the apparatus was cooled in a standard 4 He cryostat. [22,23,24] The magnet coil in the cryostat was connected to a transportable capacitor bank that resided outside the cryostat. A half-sine shaped pulsed magnetic field of 8 msec duration was generated by using a capacitor bank.…”

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confidence: 99%

Universal Magnetic Structure of the Half-Magnetization Phase in Cr-Based Spinels

et al. 2010

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Using an elastic neutron scattering technique under a pulsed magnetic field up to 30 T, we determined the magnetic structure in the half-magnetization plateau phase in the spinel CdCr2O4. The magnetic structure has a cubic P4{3}32 symmetry, which is the same as that observed in HgCr2O4. This suggests that despite their different zero-field ground states a universal field-induced spin-lattice coupling mechanism is at work in the Cr-based spinels.

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confidence: 99%

Universal Magnetic Structure of the Half-Magnetization Phase in Cr-Based Spinels

et al. 2010

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“…Furthermore, X-ray experiments have been expanded to nuclear forward scattering 70) and neutron scattering experiments. 54,[60][61][62][63] Of course, the evolution of pulsed-high-field X-ray experiments has been aided by continuous improvement and development in instrumentation. A high-repetition-rate (or fast-cooling) magnet 71) and a high-frame-rate array detector 9,67) are helpful for increasing effective measurable time and thus for improving data quality.…”

Section: Discussionmentioning

confidence: 99%

“…A new project utilizing a reactor neutron source started at 2005 and test experiments that observed the spin-flop transition of the typical antiferromagnet MnF 2 were carried out at the research reactor JRR-3 in Japan Atomic Energy Agency in magnetic fields of up to 20 T 60) and 30 T. 61) An actual challenge was first conducted on the frustrated antiferromagnet TbB 4 using the world strongest neutron reactor at the Institut Laue-Langevin (ILL). 54) Utilizing a liquid-nitrogen-cooled solenoid magnet that was inserted into an ILL-type orange cryostat, Yoshii et al observed the field dependence of the magnetic (100) and nuclear (200), (110) and (220) reflections in intensity up to 30 T, and reached basically the same result obtained in the resonant X-ray diffraction experiments mentioned in the previous subsection.…”

Section: Comments On X-ray Diffraction Experimentsmentioning

confidence: 99%

X-ray Diffraction and Absorption Spectroscopy in Pulsed High Magnetic Fields

Matsuda

Inami

2013

J. Phys. Soc. Jpn.

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Recent results of high-magnetic-field X-ray diffraction and absorption spectroscopy experiments using pulsed magnets are reviewed. Pulsed magnetic fields of up to 30-40 T are utilized. Structural changes induced by magnetic fields in rare-earth intermetallic compounds, transition-metal oxides and low-dimensional quantum spin compounds are presented as results of X-ray diffraction experiments. The structural changes are interpreted by several mechanisms such as the interspin distance dependence of exchange interactions, the symmetry change owing to the geometrical frustration effect, and the Jahn-Teller effect. In addition to the Thomson scattering experiment, a magnetic X-ray scattering experiment on TbB 4 has been conducted at 30 T. Regarding X-ray absorption spectroscopy, the valence state transition in magnetic fields is observed in Yb-, Ce-, and Eu-based intermetallic compounds. Magnetic-field-induced changes in the structural and electronic states in transition-metal and rare-earth compounds were investigated using Xray absorption spectra. The microscopic magnetic properties were examined by X-ray magnetic circular dichroism.

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“…In order to solve the magnetic structure in high magnetic fields, microscopic experiments, worthy of addressing the relative orientations of magnetic moments, are desirable. However, it is not easy to perform neutron diffraction and resonant x-ray scattering measurements in a pulsed high magnetic field [9][10][11]. We must utilize a complementary experimental technique that allows us to probe the microscopic magnetic structure and can be performed in very high magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Field-induced magnetic structures in the chiral polar antiferromagnet Ni2InSbO6

Ihara

Hiyoshi

et al. 2023

Phys. Rev. B

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We have performed 115 In-NMR spectroscopy for Ni 2 InSbO 6 with corundum-related crystal structure to reveal magnetic structures that develop in high magnetic fields. At low fields Ni 2 InSbO 6 shows a helical magnetic order with a long wavelength because of its chiral and polar crystal structure. The field-induced magnetic state was not investigated by microscopic experiment, because an extremely high magnetic field is required to modify the antiferromagnetically coupled helical structure. From the analysis of our 115 In-NMR spectra obtained at high magnetic fields, we confirm that the canted antiferromagnetic structure appears in fields applied in the [110] direction, and the propagation vector of magnetic helix is rotated toward the field direction for fields in the [001] direction. We discuss the effect of a magnetic field that modifies the magnetic structure of an antiferromagnetic chiral magnet.

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Neutron diffraction under 30T pulsed magnetic fields

Cited by 10 publications

References 4 publications

Universal Magnetic Structure of the Half-Magnetization Phase in Cr-Based Spinels

Universal Magnetic Structure of the Half-Magnetization Phase in Cr-Based Spinels

X-ray Diffraction and Absorption Spectroscopy in Pulsed High Magnetic Fields

Field-induced magnetic structures in the chiral polar antiferromagnet Ni2InSbO6

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