Lattice modulation in YMn2O5 and TbMn 2O5 studied by using synchrotron radiation x-rays

Y. Noda; H. Kimura; Y. Kamada; Y. Ishikawa; S. Kobayashi; Y. Wakabayashi; H. Sawa; N. Ikeda; K. Kohn

doi:10.3938/jkps.51.828

Lattice modulation in YMn₂O₅ and TbMn ₂O₅ studied by using synchrotron radiation x-rays

Y. Noda, H. Kimura, Y. Kamada, Y. Ishikawa, S. Kobayashi, Y. Wakabayashi, H. Sawa, N. Ikeda, K. Kohn

School of Science

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

17 Citations (Scopus)

Abstract

RMn₂O₅ (R = Y and rare earth) shows successive magnetic and ferroelectric phase transitions at about 45 K, 40 K, 39 K, 20 K and 10 K and is called a multiferroic compound. We have investigated the lattice modulation vectors (q_L) of YMn₂O₅ and TbMn ₂O₅ by using single crystal Synchrotron Radiation X-ray diffraction and compared them with the magnetic propagation vectors (q _M) studied by neutron diffraction. The relation of the propagation vectors between magnetic materials and dielectrics is found to be q_L, = 2q_M. A preliminary structure analysis of the atomic displacement pattern in the commensurate ferroelectric phase of TbMn₂O₅ is discussed.

Original language	English
Pages (from-to)	828-831
Number of pages	4
Journal	Journal of the Korean Physical Society
Volume	51
Issue number	2 PART I
DOIs	https://doi.org/10.3938/jkps.51.828
Publication status	Published - Aug 2007

Keywords

Multiferroic
RMnO
SR X-ray diffraction

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.3938/jkps.51.828

Cite this

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title = "Lattice modulation in YMn2O5 and TbMn 2O5 studied by using synchrotron radiation x-rays",

abstract = "RMn2O5 (R = Y and rare earth) shows successive magnetic and ferroelectric phase transitions at about 45 K, 40 K, 39 K, 20 K and 10 K and is called a multiferroic compound. We have investigated the lattice modulation vectors (qL) of YMn2O5 and TbMn 2O5 by using single crystal Synchrotron Radiation X-ray diffraction and compared them with the magnetic propagation vectors (q M) studied by neutron diffraction. The relation of the propagation vectors between magnetic materials and dielectrics is found to be qL, = 2qM. A preliminary structure analysis of the atomic displacement pattern in the commensurate ferroelectric phase of TbMn2O5 is discussed.",

keywords = "Multiferroic, RMnO, SR X-ray diffraction",

author = "Y. Noda and H. Kimura and Y. Kamada and Y. Ishikawa and S. Kobayashi and Y. Wakabayashi and H. Sawa and N. Ikeda and K. Kohn",

year = "2007",

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language = "English",

volume = "51",

pages = "828--831",

journal = "Journal of the Korean Physical Society",

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publisher = "Korean Physical Society",

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TY - JOUR

T1 - Lattice modulation in YMn2O5 and TbMn 2O5 studied by using synchrotron radiation x-rays

AU - Noda, Y.

AU - Kimura, H.

AU - Kamada, Y.

AU - Ishikawa, Y.

AU - Kobayashi, S.

AU - Wakabayashi, Y.

AU - Sawa, H.

AU - Ikeda, N.

AU - Kohn, K.

PY - 2007/8

Y1 - 2007/8

N2 - RMn2O5 (R = Y and rare earth) shows successive magnetic and ferroelectric phase transitions at about 45 K, 40 K, 39 K, 20 K and 10 K and is called a multiferroic compound. We have investigated the lattice modulation vectors (qL) of YMn2O5 and TbMn 2O5 by using single crystal Synchrotron Radiation X-ray diffraction and compared them with the magnetic propagation vectors (q M) studied by neutron diffraction. The relation of the propagation vectors between magnetic materials and dielectrics is found to be qL, = 2qM. A preliminary structure analysis of the atomic displacement pattern in the commensurate ferroelectric phase of TbMn2O5 is discussed.

AB - RMn2O5 (R = Y and rare earth) shows successive magnetic and ferroelectric phase transitions at about 45 K, 40 K, 39 K, 20 K and 10 K and is called a multiferroic compound. We have investigated the lattice modulation vectors (qL) of YMn2O5 and TbMn 2O5 by using single crystal Synchrotron Radiation X-ray diffraction and compared them with the magnetic propagation vectors (q M) studied by neutron diffraction. The relation of the propagation vectors between magnetic materials and dielectrics is found to be qL, = 2qM. A preliminary structure analysis of the atomic displacement pattern in the commensurate ferroelectric phase of TbMn2O5 is discussed.

KW - Multiferroic

KW - RMnO

KW - SR X-ray diffraction

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