Antiferroelectric antiferromagnetic type-I multiferroic C u9 O2(Se O3)4 C l6

H. C. Wu; K. N. Denisova; D. Menzel; D. Chandrasekhar Kakarla; O. V. Maximova; T. W. Kuo; Z. H. Yang; C. H. Lee; W. H. Li; H. Berger; C. W. Wang; C. K. Chang; Y. C. Chuang; J. Y. Lin; M. Gooch; C. W. Chu; A. N. Vasiliev; H. D. Yang

doi:10.1103/PhysRevB.100.245119

Antiferroelectric antiferromagnetic type-I multiferroic C u9 O2(Se O3)4 C l6

H. C. Wu, K. N. Denisova, D. Menzel, D. Chandrasekhar Kakarla, O. V. Maximova, T. W. Kuo, Z. H. Yang, C. H. Lee, W. H. Li, H. Berger, C. W. Wang, C. K. Chang, Y. C. Chuang, J. Y. Lin, M. Gooch, C. W. Chu, A. N. Vasiliev, H. D. Yang

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Abstract

We report that Cu9O2(SeO3)4Cl6 is a new multiferroic compound. Comprehensive studies of this compound have been carried out on single crystals as well as polycrystalline samples. Magnetic susceptibility χ and specific heat C with Hâ¥ c axis both reveal an anomaly at TN=37K associated with the long-range antiferromagnetic order. However, no signature of this phase transition is seen with the Hâ¥ b axis, providing evidence of the anisotropic nature of its magnetic properties. The results of χ measurements are consistent with the temperature evolution of the intensity of magnetic reflections from the neutron diffraction experiments. The magnetic structure derived from neutron scattering measurements shows that half of the Cu(5) ions carry no moments. Furthermore, an anomaly in the dielectric constant near TN and observable magnetoelectric coupling below TN are found. At high temperatures, a dielectric peak at TE=267K is identified with no measurable spontaneous polarization below TE, thereby suggesting an antiferroelectric order. A steplike anomaly seen in χ(T) at TE hints the weak spin-lattice coupling. Concomitantly, high-resolution temperature-dependent synchrotron x-ray diffraction experiments elucidate a local structural distortion at TE.

Original language	English
Article number	245119
Journal	Physical Review B
Volume	100
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.100.245119
Publication status	Published - 2019 Dec 11

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.100.245119

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Wu, H. C., Denisova, K. N., Menzel, D., Chandrasekhar Kakarla, D., Maximova, O. V., Kuo, T. W., Yang, Z. H., Lee, C. H., Li, W. H., Berger, H., Wang, C. W., Chang, C. K., Chuang, Y. C., Lin, J. Y., Gooch, M., Chu, C. W., Vasiliev, A. N., & Yang, H. D. (2019). Antiferroelectric antiferromagnetic type-I multiferroic C u9 O2(Se O3)4 C l6. Physical Review B, 100(24), Article 245119. https://doi.org/10.1103/PhysRevB.100.245119

@article{f30c8652248049f980eed24457fb3137,

title = "Antiferroelectric antiferromagnetic type-I multiferroic C u9 O2(Se O3)4 C l6",

abstract = "We report that Cu9O2(SeO3)4Cl6 is a new multiferroic compound. Comprehensive studies of this compound have been carried out on single crystals as well as polycrystalline samples. Magnetic susceptibility χ and specific heat C with H{\^a}¥ c axis both reveal an anomaly at TN=37K associated with the long-range antiferromagnetic order. However, no signature of this phase transition is seen with the H{\^a}¥ b axis, providing evidence of the anisotropic nature of its magnetic properties. The results of χ measurements are consistent with the temperature evolution of the intensity of magnetic reflections from the neutron diffraction experiments. The magnetic structure derived from neutron scattering measurements shows that half of the Cu(5) ions carry no moments. Furthermore, an anomaly in the dielectric constant near TN and observable magnetoelectric coupling below TN are found. At high temperatures, a dielectric peak at TE=267K is identified with no measurable spontaneous polarization below TE, thereby suggesting an antiferroelectric order. A steplike anomaly seen in χ(T) at TE hints the weak spin-lattice coupling. Concomitantly, high-resolution temperature-dependent synchrotron x-ray diffraction experiments elucidate a local structural distortion at TE.",

author = "Wu, {H. C.} and Denisova, {K. N.} and D. Menzel and {Chandrasekhar Kakarla}, D. and Maximova, {O. V.} and Kuo, {T. W.} and Yang, {Z. H.} and Lee, {C. H.} and Li, {W. H.} and H. Berger and Wang, {C. W.} and Chang, {C. K.} and Chuang, {Y. C.} and Lin, {J. Y.} and M. Gooch and Chu, {C. W.} and Vasiliev, {A. N.} and Yang, {H. D.}",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

year = "2019",

month = dec,

day = "11",

doi = "10.1103/PhysRevB.100.245119",

language = "English",

volume = "100",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "24",

}

Wu, HC, Denisova, KN, Menzel, D, Chandrasekhar Kakarla, D, Maximova, OV, Kuo, TW, Yang, ZH, Lee, CH, Li, WH, Berger, H, Wang, CW, Chang, CK, Chuang, YC, Lin, JY, Gooch, M, Chu, CW, Vasiliev, AN & Yang, HD 2019, 'Antiferroelectric antiferromagnetic type-I multiferroic C u9 O2(Se O3)4 C l6', Physical Review B, vol. 100, no. 24, 245119. https://doi.org/10.1103/PhysRevB.100.245119

TY - JOUR

T1 - Antiferroelectric antiferromagnetic type-I multiferroic C u9 O2(Se O3)4 C l6

AU - Wu, H. C.

AU - Denisova, K. N.

AU - Menzel, D.

AU - Chandrasekhar Kakarla, D.

AU - Maximova, O. V.

AU - Kuo, T. W.

AU - Yang, Z. H.

AU - Lee, C. H.

AU - Li, W. H.

AU - Berger, H.

AU - Wang, C. W.

AU - Chang, C. K.

AU - Chuang, Y. C.

AU - Lin, J. Y.

AU - Gooch, M.

AU - Chu, C. W.

AU - Vasiliev, A. N.

AU - Yang, H. D.

PY - 2019/12/11

Y1 - 2019/12/11

N2 - We report that Cu9O2(SeO3)4Cl6 is a new multiferroic compound. Comprehensive studies of this compound have been carried out on single crystals as well as polycrystalline samples. Magnetic susceptibility χ and specific heat C with Hâ¥ c axis both reveal an anomaly at TN=37K associated with the long-range antiferromagnetic order. However, no signature of this phase transition is seen with the Hâ¥ b axis, providing evidence of the anisotropic nature of its magnetic properties. The results of χ measurements are consistent with the temperature evolution of the intensity of magnetic reflections from the neutron diffraction experiments. The magnetic structure derived from neutron scattering measurements shows that half of the Cu(5) ions carry no moments. Furthermore, an anomaly in the dielectric constant near TN and observable magnetoelectric coupling below TN are found. At high temperatures, a dielectric peak at TE=267K is identified with no measurable spontaneous polarization below TE, thereby suggesting an antiferroelectric order. A steplike anomaly seen in χ(T) at TE hints the weak spin-lattice coupling. Concomitantly, high-resolution temperature-dependent synchrotron x-ray diffraction experiments elucidate a local structural distortion at TE.

AB - We report that Cu9O2(SeO3)4Cl6 is a new multiferroic compound. Comprehensive studies of this compound have been carried out on single crystals as well as polycrystalline samples. Magnetic susceptibility χ and specific heat C with Hâ¥ c axis both reveal an anomaly at TN=37K associated with the long-range antiferromagnetic order. However, no signature of this phase transition is seen with the Hâ¥ b axis, providing evidence of the anisotropic nature of its magnetic properties. The results of χ measurements are consistent with the temperature evolution of the intensity of magnetic reflections from the neutron diffraction experiments. The magnetic structure derived from neutron scattering measurements shows that half of the Cu(5) ions carry no moments. Furthermore, an anomaly in the dielectric constant near TN and observable magnetoelectric coupling below TN are found. At high temperatures, a dielectric peak at TE=267K is identified with no measurable spontaneous polarization below TE, thereby suggesting an antiferroelectric order. A steplike anomaly seen in χ(T) at TE hints the weak spin-lattice coupling. Concomitantly, high-resolution temperature-dependent synchrotron x-ray diffraction experiments elucidate a local structural distortion at TE.

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UR - http://www.scopus.com/inward/citedby.url?scp=85076771071&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.100.245119

DO - 10.1103/PhysRevB.100.245119

M3 - Article

AN - SCOPUS:85076771071

SN - 2469-9950

VL - 100

JO - Physical Review B

JF - Physical Review B

IS - 24

M1 - 245119

ER -

Antiferroelectric antiferromagnetic type-I multiferroic C u9 O2(Se O3)4 C l6

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