Structure and magnetic phase diagrams of multiferroic Mn 2GeO 4

Takashi Honda; Yuki Ishiguro; Hiroyuki Nakamura; Yusuke Wakabayashi; Tsuyoshi Kimura

doi:10.1143/JPSJ.81.103703

Structure and magnetic phase diagrams of multiferroic Mn ₂GeO ₄

Takashi Honda, Yuki Ishiguro, Hiroyuki Nakamura, Yusuke Wakabayashi, Tsuyoshi Kimura

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

10 Citations (Scopus)

Abstract

Crystallographic structure and magnetic phase diagrams were investigated for single crystals of multiferroic Mn ₂GeO ₄ showing successive magnetic transitions at T _N1 = 47 K, T _N2 = 17 K, and T _N3 = 5:5 K. Substantial anomalies of lattice distortion were observed at the respective magnetic transition temperatures. We also found that the phase boundary at T _N2 remarkably shifts by applying a magnetic field H and strongly depends on the direction of H. Possible origins of the observed phenomena are discussed from the perspective of magnetic interactions and relevant magnetostriction in Mn ₂GeO ₄ with the olivine structure.

Original language	English
Article number	103703
Journal	journal of the physical society of japan
Volume	81
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.81.103703
Publication status	Published - 2012 Oct
Externally published	Yes

Keywords

Magnetic phase diagram
Magnetization
Magnetostriction
Mn GeO
Multiferroics
Olivine

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.81.103703

Cite this

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title = "Structure and magnetic phase diagrams of multiferroic Mn 2GeO 4 ",

abstract = "Crystallographic structure and magnetic phase diagrams were investigated for single crystals of multiferroic Mn 2GeO 4 showing successive magnetic transitions at T N1 = 47 K, T N2 = 17 K, and T N3 = 5:5 K. Substantial anomalies of lattice distortion were observed at the respective magnetic transition temperatures. We also found that the phase boundary at T N2 remarkably shifts by applying a magnetic field H and strongly depends on the direction of H. Possible origins of the observed phenomena are discussed from the perspective of magnetic interactions and relevant magnetostriction in Mn 2GeO 4 with the olivine structure.",

keywords = "Magnetic phase diagram, Magnetization, Magnetostriction, Mn GeO, Multiferroics, Olivine",

author = "Takashi Honda and Yuki Ishiguro and Hiroyuki Nakamura and Yusuke Wakabayashi and Tsuyoshi Kimura",

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T1 - Structure and magnetic phase diagrams of multiferroic Mn 2GeO 4

AU - Honda, Takashi

AU - Ishiguro, Yuki

AU - Nakamura, Hiroyuki

AU - Wakabayashi, Yusuke

AU - Kimura, Tsuyoshi

PY - 2012/10

Y1 - 2012/10

N2 - Crystallographic structure and magnetic phase diagrams were investigated for single crystals of multiferroic Mn 2GeO 4 showing successive magnetic transitions at T N1 = 47 K, T N2 = 17 K, and T N3 = 5:5 K. Substantial anomalies of lattice distortion were observed at the respective magnetic transition temperatures. We also found that the phase boundary at T N2 remarkably shifts by applying a magnetic field H and strongly depends on the direction of H. Possible origins of the observed phenomena are discussed from the perspective of magnetic interactions and relevant magnetostriction in Mn 2GeO 4 with the olivine structure.

AB - Crystallographic structure and magnetic phase diagrams were investigated for single crystals of multiferroic Mn 2GeO 4 showing successive magnetic transitions at T N1 = 47 K, T N2 = 17 K, and T N3 = 5:5 K. Substantial anomalies of lattice distortion were observed at the respective magnetic transition temperatures. We also found that the phase boundary at T N2 remarkably shifts by applying a magnetic field H and strongly depends on the direction of H. Possible origins of the observed phenomena are discussed from the perspective of magnetic interactions and relevant magnetostriction in Mn 2GeO 4 with the olivine structure.

KW - Magnetic phase diagram

KW - Magnetization

KW - Magnetostriction

KW - Mn GeO

KW - Multiferroics

KW - Olivine

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