Magnetoelectric Coupling in the Pyrochlore Ruthenate Gd2Ru2O7

被引：4

作者：

Okamura, Takuma ^{[1
]}

Okazaki, Ryuji ^{[1
,3
]}

Taniguchi, Hiroki ^{[1
]}

Yasui, Yukio ^{[2
]}

Terasaki, Ichiro ^{[1
]}

机构：

[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

[2] Meiji Univ, Dept Phys, Kawasaki, Kanagawa 2148571, Japan

[3] Tokyo Univ Sci, Fac Sci & Technol, Dept Phys, Noda, Chiba 2788510, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2017年 / 86卷 / 08期

关键词：

DIELECTRIC-CONSTANT; R2RU2O7; R;

D O I：

10.7566/JPSJ.86.084708

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have prepared polycrystalline samples of Gd2Ru2O7, and have measured the dielectric constant, magnetization and magnetostriction in external fields from 0 to 7 T below 15 K. We find that the dielectric constant of Gd2Ru2O7 significantly changes with external fields, and reveal a finite magnetoelectric coupling in this oxide. Using a simple model in which the spins on the Gd ions feel an internal magnetic field of 7 T from the Ru clusters, we have explained magnetization and magnetoelectric effects qualitatively.

引用

页数：4

共 50 条

[41] Pressure induced structural transformation of pyrochlore Gd2Zr2O7
Kumar, N. R. Sanjay
Shekar, N. V. Chandra
Sahu, P. Ch.
SOLID STATE COMMUNICATIONS, 2008, 147 (9-10) : 357 - 359
[42] Electric Octupole Order in Bilayer Ruthenate Sr3Ru2O7
Hitomi, Takanori
Yanase, Youichi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2014, 83 (11)
[43] Thermopower of double-layered ruthenate Ca3Ru2O7
Iwata, K.
Kosaka, M.
Katano, S.
Mori, N.
Yoshida, Y.
Shirakawa, N.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) : 1125 - 1127
[44] Double metamagnetic transition in the bilayer ruthenate Sr3Ru2O7
Ohmichi, E
Yoshida, Y
Ikeda, SI
Mushunikov, NV
Goto, T
Osada, T
PHYSICAL REVIEW B, 2003, 67 (02)
[45] High-temperature heat capacity of Gd-pyrochlore (Gd2Ti2O7)
Janssen, A.
Poeml, P.
Benes, O.
Geisler, T.
Konings, R. J. M.
JOURNAL OF CHEMICAL THERMODYNAMICS, 2009, 41 (09): : 1049 - 1051
[46] Induced metamagnetism in the itinerant bilayer ruthenate Sr3Ru2O7
Capogna, L
Forgan, EM
McIntyre, GJ
Burton, N
Kealey, PG
Perry, RS
Galvin, LM
Mackenzie, AP
Ikeda, S
Maeno, Y
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2002, 74 (Suppl 1): : S926 - S928
[47] Induced metamagnetism in the itinerant bilayer ruthenate Sr3Ru2O7
L. Capogna
E.M. Forgan
G.J. McIntyre
N. Burton
P.G. Kealey
R.S. Perry
L.M. Galvin
A.P. Mackenzie
S. Ikeda
Y. Maeno
Applied Physics A, 2002, 74 : s926 - s928
[48] Different High-Temperature Spin Dynamics of Ising Pyrochlore Dy2Sn2O7 and Heisenberg Pyrochlore Gd2Sn2O7
Kaibuchi, Tomomi
Tashiro, Hiroshi
Itou, Tetsuaki
Nishiyama, Masahide
Oyamada, Akira
Maegawa, Satoru
Matsuhira, Kazuyuki
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2012, 81 (05)
[49] BAND-STRUCTURE OF METALLIC PYROCHLORE RUTHENATES BI2RU2O7 AND PB2RU2O6.5
HSU, WY
KASOWSKI, RV
MILLER, T
CHIANG, TC
APPLIED PHYSICS LETTERS, 1988, 52 (10) : 792 - 794
[50] Quantum critical points and nematics: The ruthenate Sr3Ru2O7
Grigera, Santiago A.
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2008, 64 : C116 - C116

← 1 2 3 4 5 →