Field-induced incommensurate-to-commensurate phase transition in the magnetoelectric hexaferrite Ba0.5Sr1.5Zn2(Fe1-xAlx)12O22

被引：68

作者：

Lee, Hak Bong ^{[1
]}

Song, Young-Sang ^{[1
]}

Chung, Jae-Ho ^{[1
]}

Chun, Sae Hwan ^{[2
]}

Chai, Yi Sheng ^{[2
]}

Kim, Kee Hoon ^{[2
]}

Reehuis, M. ^{[3
]}

Prokes, K. ^{[3
]}

Mat'as, S. ^{[3
]}

机构：

[1] Korea Univ, Dept Phys, Seoul 136713, South Korea

[2] Seoul Natl Univ, CeNSCMR, Dept Phys & Astron, Seoul 151747, South Korea

[3] Helmholtz Zentrum Mat & Energie, D-14109 Berlin, Germany

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 14期

关键词：

MAGNETIC-STRUCTURE; (BA1-XSRX)2ZN2FE12O22; TEMPERATURE; HELIMAGNET;

D O I：

10.1103/PhysRevB.83.144425

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using neutron diffraction, we investigated the spin structures of magnetoelectric hexaferrite, Ba0.5Sr1.5Zn2(Fe1-xAlx)(12)O-22 (x = 0.08) under a magnetic field (H perpendicular to c). When the crystal was cooled in a zero field, longitudinal spin cones were observed at low temperatures. These incommensurate phases, however, were replaced by the commensurate phase [ k(1) = (0,0,3/2)] when the ferroelectricity was induced by an external field perpendicular to the c axis. Magnetic structure refinement confirms that this commensurate order is compatible with the spin-current polarization. We argue that planar magnetic anisotropy plays an important role in determining the magnetic structure that is responsible for its magnetoelectricity.

引用

页数：6

共 19 条

[1] ALESHKOO.OP, 1969, SOV PHYS JETP-USSR, V28, P425
[2] Multiferroics: a magnetic twist for ferroelectricity
Cheong, Sang-Wook
Mostovoy, Maxim
[J]. NATURE MATERIALS, 2007, 6 (01) : 13 - 20
[3] Realization of Giant Magnetoelectricity in Helimagnets
Chun, Sae Hwan
Chai, Yi Sheng
Oh, Yoon Seok
Jaiswal-Nagar, Deepshikha
Haam, So Young
Kim, Ingyu
Lee, Bumsung
Nam, Dong Hak
Ko, Kyung-Tae
Park, Jae-Hoon
Chung, Jae-Ho
Kim, Kee Hoon
[J]. PHYSICAL REVIEW LETTERS, 2010, 104 (03)
[4] Chung J.-H., UNPUB
[5] Electric polarization reversal and memory in a multiferroic material induced by magnetic fields
Hur, N
Park, S
Sharma, PA
Ahn, JS
Guha, S
Cheong, SW
[J]. NATURE, 2004, 429 (6990) : 392 - 395
[6] Low-magnetic-field control of electric polarization vector in a helimagnet
Ishiwata, Shintaro
Taguchi, Yasujiro
Murakawa, Hiroshi
Onose, Yoshinori
Tokura, Yoshinori
[J]. SCIENCE, 2008, 319 (5870) : 1643 - 1646
[7] Neutron diffraction studies on the multiferroic conical magnet Ba2Mg2Fe12O22
Ishiwata, Shintaro
Okuyama, Daisuke
Kakurai, Kazuhisa
Nishi, Masakazu
Taguchi, Yasujiro
Tokura, Yoshinori
[J]. PHYSICAL REVIEW B, 2010, 81 (17):
[8] Spin current and magnetoelectric effect in noncollinear magnets
Katsura, H
Nagaosa, N
Balatsky, AV
[J]. PHYSICAL REVIEW LETTERS, 2005, 95 (05)
[9] Electric polarization rotation in a hexaferrite with long-wavelength magnetic structures
Kimura, T
Lawes, G
Ramirez, AP
[J]. PHYSICAL REVIEW LETTERS, 2005, 94 (13)
[10] Low-field magnetoelectric effect at room temperature
Kitagawa, Yutaro
Hiraoka, Yuji
Honda, Takashi
Ishikura, Taishi
Nakamura, Hiroyuki
Kimura, Tsuyoshi
[J]. NATURE MATERIALS, 2010, 9 (10) : 797 - 802

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