Development of a new neutron 4-circle diffractometer and application to the crystal and magnetic structure of MnF 2

Relation between ferroelectric and antiferromagnetic order in

“…They show successive magnetic and ferroelectric phase transitions at about 45, 40, 39, 20 and 10 K. We have investigated the magnetic propagation vector of R ¼ Y, Er, Tb, Tm using a single crystal four-circle neutron diffractometer FONDER [2] and a high-Q resolution triple-axis spectrometer (HQR), installed at the guide-hall of JRR-3M in Japan Atomic Energy Research Institute. Since then, the magnetic behavior became very clear [3][4][5][6][7][8][9].…”

Collinear to Spiral Spin Transformation without Changing the Modulation Wavelength upon Ferroelectric Transition inTb1−xDyxMnO3

“…Single-crystal neutron diffraction measurements were carried out on a four-circle neutron diffractometer (FONDER) installed in the guidehall of JRR-3M at the JAPAN Atomic Energy Research Institute, Japan. [15] The FONDER diffractometer was operated with a wavelength λ = 1.24 Å that was obtained by using a Ge (311) monochromator. A single crystal with a diameter of ∼ 2.5 mm and a length of ∼ 7 mm was used for the neutron measurements.…”

Proton Conduction Path in Rb3H(SeO4)2Studied by High Temperature Neutron Single Crystal Diffraction

“…The neutron single crystal diffraction experiments were carried out using a Four circle neutron diffractometer, FONDER, installed at JRR-3M in JAEA [25,26]. The single crystal was mounted on a furnace, and the data collection was conducted at four temperature points, three in the room temperature phase and one in the superprotonic phase.…”