High temperature 31P NMR study on Mg2+ ion conductors

Junichi Kawamura; Kai Morota; Naoaki Kuwata; Yoshio Nakamura; Hideki Maekawa; Takeshi Hattori; Nobuhito Imanaka; Yusuke Okazaki; Gin Ya Adachi

doi:10.1016/S0038-1098(01)00386-6

High temperature ³¹P NMR study on Mg²⁺ ion conductors

Junichi Kawamura, Kai Morota, Naoaki Kuwata, Yoshio Nakamura, Hideki Maekawa, Takeshi Hattori, Nobuhito Imanaka, Yusuke Okazaki, Gin Ya Adachi

NanoTerasu Co-Creation Promotion Division

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

14 Citations (Scopus)

Abstract

The high temperature ³¹P NMR was measured up to 1300°C in a superconducting magnet for the recently developed Mg²⁺ ion conductors of the Mg_0.7(Zr_0.85Nb_0.15)₄ P₆O₂₄ solid solution, Mg_1.4Zr₄P₆O_24.4+0.4 Zr₂O(PO₄)₂ composite and Mg_1.1(Zr_0.85Nb_0.15)₄ P₆O₂₄+0.4Zr₂O(PO₄)₂ solid solution composite. Line widths of all the samples decreased as the temperature was raised and the longitudinal relaxation time T₁ showed a minimum near 1000°C. The observed T₁ minimum at high temperature can be well explained by the local field fluctuation on the ³¹P nucleus due to the fast jump motion of Mg²⁺ ions.

Original language	English
Pages (from-to)	295-298
Number of pages	4
Journal	Solid State Communications
Volume	120
Issue number	7-8
DOIs	https://doi.org/10.1016/S0038-1098(01)00386-6
Publication status	Published - 2001 Oct 16

Keywords

D. Phase transitions
D. Spin dynamics
E. Nuclear resonances

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title = "High temperature 31P NMR study on Mg2+ ion conductors",

abstract = "The high temperature 31P NMR was measured up to 1300°C in a superconducting magnet for the recently developed Mg2+ ion conductors of the Mg0.7(Zr0.85Nb0.15)4 P6O24 solid solution, Mg1.4Zr4P6O24.4+0.4 Zr2O(PO4)2 composite and Mg1.1(Zr0.85Nb0.15)4 P6O24+0.4Zr2O(PO4)2 solid solution composite. Line widths of all the samples decreased as the temperature was raised and the longitudinal relaxation time T1 showed a minimum near 1000°C. The observed T1 minimum at high temperature can be well explained by the local field fluctuation on the 31P nucleus due to the fast jump motion of Mg2+ ions.",

keywords = "D. Phase transitions, D. Spin dynamics, E. Nuclear resonances",

author = "Junichi Kawamura and Kai Morota and Naoaki Kuwata and Yoshio Nakamura and Hideki Maekawa and Takeshi Hattori and Nobuhito Imanaka and Yusuke Okazaki and Adachi, {Gin Ya}",

year = "2001",

month = oct,

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doi = "10.1016/S0038-1098(01)00386-6",

language = "English",

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journal = "Solid State Communications",

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T1 - High temperature 31P NMR study on Mg2+ ion conductors

AU - Kawamura, Junichi

AU - Morota, Kai

AU - Kuwata, Naoaki

AU - Nakamura, Yoshio

AU - Maekawa, Hideki

AU - Hattori, Takeshi

AU - Imanaka, Nobuhito

AU - Okazaki, Yusuke

AU - Adachi, Gin Ya

PY - 2001/10/16

Y1 - 2001/10/16

N2 - The high temperature 31P NMR was measured up to 1300°C in a superconducting magnet for the recently developed Mg2+ ion conductors of the Mg0.7(Zr0.85Nb0.15)4 P6O24 solid solution, Mg1.4Zr4P6O24.4+0.4 Zr2O(PO4)2 composite and Mg1.1(Zr0.85Nb0.15)4 P6O24+0.4Zr2O(PO4)2 solid solution composite. Line widths of all the samples decreased as the temperature was raised and the longitudinal relaxation time T1 showed a minimum near 1000°C. The observed T1 minimum at high temperature can be well explained by the local field fluctuation on the 31P nucleus due to the fast jump motion of Mg2+ ions.

AB - The high temperature 31P NMR was measured up to 1300°C in a superconducting magnet for the recently developed Mg2+ ion conductors of the Mg0.7(Zr0.85Nb0.15)4 P6O24 solid solution, Mg1.4Zr4P6O24.4+0.4 Zr2O(PO4)2 composite and Mg1.1(Zr0.85Nb0.15)4 P6O24+0.4Zr2O(PO4)2 solid solution composite. Line widths of all the samples decreased as the temperature was raised and the longitudinal relaxation time T1 showed a minimum near 1000°C. The observed T1 minimum at high temperature can be well explained by the local field fluctuation on the 31P nucleus due to the fast jump motion of Mg2+ ions.

KW - D. Phase transitions

KW - D. Spin dynamics

KW - E. Nuclear resonances

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DO - 10.1016/S0038-1098(01)00386-6

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AN - SCOPUS:0035900012

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VL - 120

SP - 295

EP - 298

JO - Solid State Communications

JF - Solid State Communications

IS - 7-8

ER -

High temperature ³¹P NMR study on Mg²⁺ ion conductors

Abstract

Keywords

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