Magnetic Structure and Dielectric State in the Multiferroic Ca2CoSi2O7

被引：6

作者：

Soda, Minoru ^{[1
]}

Hayashida, Shohei ^{[1
]}

Yoshida, Toshiya ^{[1
]}

Akaki, Mitsuru ^{[2
]}

Hagiwara, Masayuki ^{[2
]}

Avdeev, Maxim ^{[3
]}

Zaharko, Oksana ^{[4
]}

Masuda, Takatsugu ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Neutron Sci Lab, Tokai, Ibaraki 3191106, Japan

[2] Osaka Univ, Grad Sch Sci, Ctr Adv High Magnet Field Sci AHMF, Toyanaka, Osaka 5600043, Japan

[3] Australian Nucl Sci & Technol Org, Bragg Inst, Lucas Heights, NSW 2234, Australia

[4] Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2017年 / 86卷 / 06期

关键词：

D O I：

10.7566/JPSJ.86.064703

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic structure of the multiferroic Ca2CoSi2O7 was determined by neutron diffraction techniques. A combination of experiments on polycrystalline and single-crystal samples revealed a collinear antiferromagnetic structure with the easyaxis along the < 100 > directions. The dielectric state is discussed in the framework of the spin-dependent d-p hybridization mechanism, leading to the realization of the antiferroelectric structure. The origin of the magnetic anisotropy is discussed in comparison with that of the isostructural Ba2CoGe2O7.

引用

页数：5

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