Lattice dynamical probe of charge order and antipolar bilayer stacking in LuFe2O4

被引：37

作者：

Xu, X. S. ^{[2
]}

de Groot, J. ^{[3
,4
]}

Sun, Q. -C. ^{[2
]}

Sales, B. C. ^{[1
]}

Mandrus, D. ^{[1
,5
]}

Angst, M. ^{[3
,4
]}

Litvinchuk, A. P. ^{[6
,7
]}

Musfeldt, J. L. ^{[2
]}

机构：

[1] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[2] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

[3] Forschungszentrum Julich, Inst Festkorperforsch, JCNS, D-52425 Julich, Germany

[4] Forschungszentrum Julich, JARA FIT, D-52425 Julich, Germany

[5] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[6] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

[7] Univ Houston, Dept Phys, Houston, TX 77204 USA

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 01期

关键词：

FERROELECTRICITY; SPECTROSCOPY; PHONON;

D O I：

10.1103/PhysRevB.82.014304

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the infrared response of LuFe2O4 through the series of charge, magnetic, and structural transitions. All vibrational modes couple strongly to the charge order, whereas the LuO zone-folding modes are also sensitive to magnetic order and structural distortion. The dramatic splitting of the LuO2 layer mode is attributed to charge-rich/poor proximity effects and its temperature dependence reveals the antipolar nature of the W layer pattern.

引用

页数：8

共 32 条

[1] Charge Order in LuFe2O4: Antiferroelectric Ground State and Coupling to Magnetism [J].

Angst, M. ;

Hermann, R. P. ;

Christianson, A. D. ;

Lumsden, M. D. ;

Lee, C. ;

Whangbo, M. -H. ;

Kim, J. -W. ;

Ryan, P. J. ;

Nagler, S. E. ;

Tian, W. ;

Jin, R. ;

Sales, B. C. ;

Mandrus, D. .

PHYSICAL REVIEW LETTERS, 2008, 101 (22)

[2]

BAILEY JD, 2006, SOLID STATE PHYS INT

[3] Magnetoelastic coupling in DyMn2O5 via infrared spectroscopy [J].

Cao, J. ;

Vergara, L. I. ;

Musfeldt, J. L. ;

Litvinchuk, A. P. ;

Wang, Y. J. ;

Park, S. ;

Cheong, S. -W. .

PHYSICAL REVIEW B, 2008, 78 (06)

[4] Three-dimensional magnetic correlations in multiferroic LuFe2O4 [J].

Christianson, A. D. ;

Lumsden, M. D. ;

Angst, M. ;

Yamani, Z. ;

Tian, W. ;

Jin, R. ;

Payzant, E. A. ;

Nagler, S. E. ;

Sales, B. C. ;

Mandrus, D. .

PHYSICAL REVIEW LETTERS, 2008, 100 (10)

[5]

Fateley W.G., 1972, Infrared and Raman Selection Rules for Molecular and Lattice Vibrations

[6] Topological characterization of quantum phase transitions in a spin-1/2 model [J].

Feng, Xiao-Yong ;

Zhang, Guang-Ming ;

Xiang, Tao .

PHYSICAL REVIEW LETTERS, 2007, 98 (08)

[7] The General Utility Lattice Program (GULP) [J].

Gale, JD ;

Rohl, AL .

MOLECULAR SIMULATION, 2003, 29 (05) :291-341

[8] Charge and spin ordering in the mixed-valence compound LuFe2O4 [J].

Harris, A. B. ;

Yildirim, T. .

PHYSICAL REVIEW B, 2010, 81 (13)

[9] Optical response of high-dielectric-constant perovskite-related oxide [J].

Homes, CC ;

Vogt, T ;

Shapiro, SM ;

Wakimoto, S ;

Ramirez, AP .

SCIENCE, 2001, 293 (5530) :673-676

[10] MAGNETIZATION AND SPIN CORRELATION OF 2-DIMENSIONAL TRIANGULAR ANTIFERROMAGNET LUFE2O4 [J].

IIDA, J ;

TANAKA, M ;

NAKAGAWA, Y ;

FUNAHASHI, S ;

KIMIZUKA, N ;

TAKEKAWA, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1993, 62 (05) :1723-1735

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