Microscopic magnetic and structural nature of spinel Li [Lix Mn2-x] O4

J. Sugiyama; K. Mukai; Y. Ikedo; P. L. Russo; T. Suzuki; I. Watanabe; J. H. Brewer; E. J. Ansaldo; K. H. Chow; K. Ariyoshi; T. Ohzuku

doi:10.1103/PhysRevB.75.174424

Microscopic magnetic and structural nature of spinel Li [Lix Mn2-x] O4

J. Sugiyama, K. Mukai, Y. Ikedo, P. L. Russo, T. Suzuki, I. Watanabe, J. H. Brewer, E. J. Ansaldo, K. H. Chow, K. Ariyoshi, T. Ohzuku

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

21 Citations (Scopus)

Abstract

The magnetic nature of the spinel antiferromagnet Li [Lix Mn2-x] O4 with x=0-0.15 has been studied with muon-spin rotation and relaxation (μ+ SR) spectroscopy. Both weak-transverse-field and zero-field μ+ SR measurements indicate that the whole sample enters into a static disordered magnetic phase below TN for all the samples measured; TN =61 K for LiMn2 O4, but 27-23 K for the x=0.05-0.15 samples. It was also clarified that both the field distribution width and the field fluctuation rate show a clear change at the Jahn-Teller (JT) transition temperature (TJT =280 K) for LiMn2 O4, and a short-range cooperative JT distortion appears below 280 K even for Li [Li0.15 Mn1.85] O4.

Original language	English
Article number	174424
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	75
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.75.174424
Publication status	Published - 2007 May 17
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.75.174424

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title = "Microscopic magnetic and structural nature of spinel Li [Lix Mn2-x] O4",

abstract = "The magnetic nature of the spinel antiferromagnet Li [Lix Mn2-x] O4 with x=0-0.15 has been studied with muon-spin rotation and relaxation (μ+ SR) spectroscopy. Both weak-transverse-field and zero-field μ+ SR measurements indicate that the whole sample enters into a static disordered magnetic phase below TN for all the samples measured; TN =61 K for LiMn2 O4, but 27-23 K for the x=0.05-0.15 samples. It was also clarified that both the field distribution width and the field fluctuation rate show a clear change at the Jahn-Teller (JT) transition temperature (TJT =280 K) for LiMn2 O4, and a short-range cooperative JT distortion appears below 280 K even for Li [Li0.15 Mn1.85] O4.",

author = "J. Sugiyama and K. Mukai and Y. Ikedo and Russo, {P. L.} and T. Suzuki and I. Watanabe and Brewer, {J. H.} and Ansaldo, {E. J.} and Chow, {K. H.} and K. Ariyoshi and T. Ohzuku",

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doi = "10.1103/PhysRevB.75.174424",

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T1 - Microscopic magnetic and structural nature of spinel Li [Lix Mn2-x] O4

AU - Sugiyama, J.

AU - Mukai, K.

AU - Ikedo, Y.

AU - Russo, P. L.

AU - Suzuki, T.

AU - Watanabe, I.

AU - Brewer, J. H.

AU - Ansaldo, E. J.

AU - Chow, K. H.

AU - Ariyoshi, K.

AU - Ohzuku, T.

PY - 2007/5/17

Y1 - 2007/5/17

N2 - The magnetic nature of the spinel antiferromagnet Li [Lix Mn2-x] O4 with x=0-0.15 has been studied with muon-spin rotation and relaxation (μ+ SR) spectroscopy. Both weak-transverse-field and zero-field μ+ SR measurements indicate that the whole sample enters into a static disordered magnetic phase below TN for all the samples measured; TN =61 K for LiMn2 O4, but 27-23 K for the x=0.05-0.15 samples. It was also clarified that both the field distribution width and the field fluctuation rate show a clear change at the Jahn-Teller (JT) transition temperature (TJT =280 K) for LiMn2 O4, and a short-range cooperative JT distortion appears below 280 K even for Li [Li0.15 Mn1.85] O4.

AB - The magnetic nature of the spinel antiferromagnet Li [Lix Mn2-x] O4 with x=0-0.15 has been studied with muon-spin rotation and relaxation (μ+ SR) spectroscopy. Both weak-transverse-field and zero-field μ+ SR measurements indicate that the whole sample enters into a static disordered magnetic phase below TN for all the samples measured; TN =61 K for LiMn2 O4, but 27-23 K for the x=0.05-0.15 samples. It was also clarified that both the field distribution width and the field fluctuation rate show a clear change at the Jahn-Teller (JT) transition temperature (TJT =280 K) for LiMn2 O4, and a short-range cooperative JT distortion appears below 280 K even for Li [Li0.15 Mn1.85] O4.

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Microscopic magnetic and structural nature of spinel Li [Lix Mn2-x] O4

Abstract

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