Small-angle neutron scattering study on ferromagnetic correlation in (La, Tb)CaMnO

Wakahiki, Masaya*; Metoki, Naoto; Suzuki, Junichi; Oikawa, Kenichi; Nie, J.*; Tachiki, Masashi*; Yamada, Yasusada

Journal of the Physical Society of Japan, 70(4), p.1090 - 1098, 2001/04

https://doi.org/10.1143/JPSJ.70.1090

no abstracts in English

Neutron diffraction of hole polaron ordering in LaSrMnO(x)

Yamada, Yasusada; Suzuki, Junichi; Oikawa, Kenichi*; Katano, Susumu; Fernandez-Baca, J. A.*

Physical Review B, 62(17), p.11600 - 11608, 2000/11

https://doi.org/10.1103/PhysRevB.62.11600

no abstracts in English

Change ordering in LaSrMnO(x0.12)

Inami, Toshiya; Ikeda, Naoshi*; Murakami, Yoichi*; Koyama, Ichiro*; Wakabayashi, Yusuke*; Yamada, Yasusada*

Japanese Journal of Applied Physics, 38(suppl.38-1), p.212 - 214, 1999/06

https://doi.org/10.1143/JJAP.38.L212

no abstracts in English

Charge ordering in low-doping rate ABMnO (A:La,Pr;B:Sr,Ca)

Inami, Toshiya*; Hino, O.*; Nodo, S.*; Kaneo, Rinna*; Ikeda, Naoshi*; Yamada, Yasusada*; Katano, Susumu

Physica B; Condensed Matter, 241-243, p.433 - 435, 1998/00

https://doi.org/10.1016/S0921-4526(97)00611-X

no abstracts in English

Next generation neutron source project in Japan Atomic Energy Reserch Institute(JAERI)

Yamada, Yasusada*; Watanabe, Noboru*; Niimura, Nobuo; Morii, Yukio; Katano, Susumu; Aizawa, Kazuya; Suzuki, Junichi; Koizumi, Satoshi; Osakabe, Toyotaka; Teshigawara, Makoto*; et al.

Physica B; Condensed Matter, 241-243, p.42 - 45, 1998/00

https://doi.org/10.1016/S0921-4526(97)00508-5

no abstracts in English

Next generation neutron scattering at neutron science center project in JAERI

Yamada, Yasusada*; Watanabe, Noboru*; Niimura, Nobuo*; Morii, Yukio; Katano, Susumu; Aizawa, Kazuya; Suzuki, Junichi; ; Osakabe, Toyotaka

JAERI-Review 96-019, 43 Pages, 1997/01

JAERI-Review-96-019.pdf:1.96MB

no abstracts in English

Magnetic ordering process in the charge-frustrated ferroelectric system LuFeO

Kakurai, Kazuhisa; Ikeda, Naoshi*; Nagai, Satoshi*; Matsuda, Masaaki; Ishii, Yoshinobu; Owada, Kenji; Inami, Toshiya; Yoshii, Kenji; Murakami, Yoichi*; Kito, Hijiri*; et al.

no journal, , 

We report in this paper an anomalous magnetic ordering process in the charge ordered LuFeO. The neutron scattering experiments were performed on TAS-1 and TAS-2 instruments installed at JAEA-JRR-3. The following results are obtained:1) Despite the triangular configuration a strong 2-D antiferromagnetic correlation with ferrimagnetic component in the double layer in the hexagonal plane develops to a 3-D order along the c-axis at T=242K.2) At around 177K there is another characteristic temperature T, where new type of broad magnetic peaks start to grow and at the same time the magnetic peaks already developed below T also acquire finite line width, including the peaks due to the ferrimagnetic component. A strong hysteresis is observed at T. The existence of the anomalous magnetic ground state will be demonstrated and the possible relation to the orbital degree of freedom will be discussed.

Field dependence of the magnetic ordering process in layered triangular system LuFeO

Kakurai, Kazuhisa; Ikeda, Naoshi*; Nagai, Satoshi*; Matsuda, Masaaki; Ishii, Yoshinobu; Owada, Kenji; Inami, Toshiya; Yoshii, Kenji; Murakami, Yoichi*; Kito, Hijiri*; et al.

no journal, , 

The field dependence of the anomalous magnetic ordering process in the charge ordered LuFeO by means of neutron scattering is reported. Despite the triangular configuration a strong 2-D antiferromagnetic correlation with ferrimagnetic component in the double layer in the hexagonal plane develops to a 3-D order along the c-axis at T=242K. At around 177K another characteristic temperature T was discovered where new type of broad magnetic peaks start to grow and at the same time the magnetic peaks already developed below T also acquire finite line width, including the peaks due to the ferrimagnetic component. Field dependence of T was investigated. Upon applying the field perpendicular to the layer plane, T decreases and vanishes above 3T.

Magnetic ordering process in the charge-frustrated ferroelectric system LuFeO

Kakurai, Kazuhisa; Ikeda, Naoshi*; Nagai, Satoshi*; Matsuda, Masaaki; Ishii, Yoshinobu; Owada, Kenji; Inami, Toshiya; Yoshii, Kenji; Murakami, Yoichi*; Kito, Hijiri*; et al.

no journal, , 

no abstracts in English

Magnetic ground state in the ferroelectric LuFeO

Kakurai, Kazuhisa; Matsuda, Masaaki; Yoshii, Kenji; Ikeda, Naoshi*; Kito, Hijiri*; Yamada, Yasusada*

no journal, , 

Recently the investigation of multiferroic systems showing strong correlation between the magnetic and ferroelectric ordering is attracting much attention. The temperature variation of the electric polarization in LuFeO indicates such a strong correlation. The magnetic ordering process of this ferrimagnetic system is complex showing a frozen spin ground state in zero field. We have investigated the field dependence of the magnetic ordering process and discovered that the frozen state is suppressed upon application of the magnetic field in the stacking c-axis direction of this layered compound and that a ground state with much larger correlation in c-axis direction is established.