Cycloidal magnetism driven ferroelectricity in double tungstate LiFe(WO4)2

Meifeng Liu; Lingfang Lin; Yang Zhang; Shaozhen Li; Qingzhen Huang; V. Ovidiu Garlea; Tao Zou; Yunlong Xie; Yu Wang; Chengliang Lu; Lin Yang; Zhibo Yan; Xiuzhang Wang; Shuai Dong; Jun Ming Liu

doi:10.1103/PhysRevB.95.195134

Cycloidal magnetism driven ferroelectricity in double tungstate LiFe(WO4)2

Meifeng Liu, Lingfang Lin, Yang Zhang, Shaozhen Li, Qingzhen Huang, V. Ovidiu Garlea, Tao Zou, Yunlong Xie, Yu Wang, Chengliang Lu, Lin Yang, Zhibo Yan, Xiuzhang Wang, Shuai Dong, Jun Ming Liu

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Tungstates AWO4 with the wolframite structure characterized by the AO6 octahedral zigzag chains along the c axis can be magnetic if A=Mn, Fe, Co, Cu, Ni. Among them, MnWO4 is a unique member with a cycloid Mn2+ spin order developed at low temperature, leading to an interesting type-II multiferroic behavior. However, so far no other multiferroic material in the tungstate family has been found. In this work, we present the synthesis and the systematic study of the double tungstate LiFe(WO4)2. Experimental characterizations including structural, thermodynamic, magnetic, neutron powder diffraction, and pyroelectric measurements unambiguously confirm that LiFe(WO4)2 is the secondly found multiferroic system in the tungstate family. The cycloidal magnetism driven ferroelectricity is also verified by density functional theory calculations. Although here the magnetic couplings between Fe ions are indirect, namely via the so-called super-super-exchanges, the temperatures of magnetic and ferroelectric transitions are surprisingly much higher than those of MnWO4.

Original language	English
Article number	195134
Journal	Physical Review B
Volume	95
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.95.195134
State	Published - May 17 2017

Funding

Work was supported by the National Key Research Programs of China (Grant No. 2016YFA0300101) and National Natural Science Foundation of China (Grants No. 11674055, No. 11374147, and No. 11374112). V.O.G. and T.Z. (ORNL) acknowledge the support from the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy (DOE). Most calculations were done on Tianhe-2 at National Supercomputer Centre in Guangzhou (NSCC-GZ).

Funders	Funder number
NSCC-GZ
National Key Research Programs of China	2016YFA0300101
Office of Basic Energy Sciences
Scientific User Facilities Division
US Department of Energy
U.S. Department of Energy
Oak Ridge National Laboratory
National Natural Science Foundation of China	11374112, 11374147, 11674055
National Natural Science Foundation of China

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title = "Cycloidal magnetism driven ferroelectricity in double tungstate LiFe(WO4)2",

abstract = "Tungstates AWO4 with the wolframite structure characterized by the AO6 octahedral zigzag chains along the c axis can be magnetic if A=Mn, Fe, Co, Cu, Ni. Among them, MnWO4 is a unique member with a cycloid Mn2+ spin order developed at low temperature, leading to an interesting type-II multiferroic behavior. However, so far no other multiferroic material in the tungstate family has been found. In this work, we present the synthesis and the systematic study of the double tungstate LiFe(WO4)2. Experimental characterizations including structural, thermodynamic, magnetic, neutron powder diffraction, and pyroelectric measurements unambiguously confirm that LiFe(WO4)2 is the secondly found multiferroic system in the tungstate family. The cycloidal magnetism driven ferroelectricity is also verified by density functional theory calculations. Although here the magnetic couplings between Fe ions are indirect, namely via the so-called super-super-exchanges, the temperatures of magnetic and ferroelectric transitions are surprisingly much higher than those of MnWO4.",

author = "Meifeng Liu and Lingfang Lin and Yang Zhang and Shaozhen Li and Qingzhen Huang and Garlea, {V. Ovidiu} and Tao Zou and Yunlong Xie and Yu Wang and Chengliang Lu and Lin Yang and Zhibo Yan and Xiuzhang Wang and Shuai Dong and Liu, {Jun Ming}",

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doi = "10.1103/PhysRevB.95.195134",

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AU - Liu, Meifeng

AU - Lin, Lingfang

AU - Zhang, Yang

AU - Li, Shaozhen

AU - Huang, Qingzhen

AU - Garlea, V. Ovidiu

AU - Zou, Tao

AU - Xie, Yunlong

AU - Wang, Yu

AU - Lu, Chengliang

AU - Yang, Lin

AU - Yan, Zhibo

AU - Wang, Xiuzhang

AU - Dong, Shuai

AU - Liu, Jun Ming

PY - 2017/5/17

Y1 - 2017/5/17

N2 - Tungstates AWO4 with the wolframite structure characterized by the AO6 octahedral zigzag chains along the c axis can be magnetic if A=Mn, Fe, Co, Cu, Ni. Among them, MnWO4 is a unique member with a cycloid Mn2+ spin order developed at low temperature, leading to an interesting type-II multiferroic behavior. However, so far no other multiferroic material in the tungstate family has been found. In this work, we present the synthesis and the systematic study of the double tungstate LiFe(WO4)2. Experimental characterizations including structural, thermodynamic, magnetic, neutron powder diffraction, and pyroelectric measurements unambiguously confirm that LiFe(WO4)2 is the secondly found multiferroic system in the tungstate family. The cycloidal magnetism driven ferroelectricity is also verified by density functional theory calculations. Although here the magnetic couplings between Fe ions are indirect, namely via the so-called super-super-exchanges, the temperatures of magnetic and ferroelectric transitions are surprisingly much higher than those of MnWO4.

AB - Tungstates AWO4 with the wolframite structure characterized by the AO6 octahedral zigzag chains along the c axis can be magnetic if A=Mn, Fe, Co, Cu, Ni. Among them, MnWO4 is a unique member with a cycloid Mn2+ spin order developed at low temperature, leading to an interesting type-II multiferroic behavior. However, so far no other multiferroic material in the tungstate family has been found. In this work, we present the synthesis and the systematic study of the double tungstate LiFe(WO4)2. Experimental characterizations including structural, thermodynamic, magnetic, neutron powder diffraction, and pyroelectric measurements unambiguously confirm that LiFe(WO4)2 is the secondly found multiferroic system in the tungstate family. The cycloidal magnetism driven ferroelectricity is also verified by density functional theory calculations. Although here the magnetic couplings between Fe ions are indirect, namely via the so-called super-super-exchanges, the temperatures of magnetic and ferroelectric transitions are surprisingly much higher than those of MnWO4.

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Cycloidal magnetism driven ferroelectricity in double tungstate LiFe(WO4)2

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