Observation of a second metastable spin-ordered state in ferrimagnet Cu2OSeO3

C. L. Huang; K. F. Tseng; C. C. Chou; S. Mukherjee; J. L. Her; Y. H. Matsuda; K. Kindo; H. Berger; H. D. Yang

doi:10.1103/PhysRevB.83.052402

Observation of a second metastable spin-ordered state in ferrimagnet Cu₂OSeO₃

C. L. Huang
, K. F. Tseng
, C. C. Chou
, S. Mukherjee
, J. L. Her
, Y. H. Matsuda
, K. Kindo
, H. Berger
, H. D. Yang

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

17 Scopus citations

Abstract

dc and ac magnetization measurements were performed on single-crystal Cu₂OSeO₃ under magnetic field (H) and hydrostatic pressure (P) conditions. Increasing H shifts the ferrimagnetic transition observed at T_C~60 K to a higher-temperature region. Moreover, the T_C increases linearly and magnetization is enhanced with P. Features of the ladder in the M-vs-H curve or the peak in the dM/dH-vs-H curve are observed at H _SF~0.5 kOe, suggesting a competing ordered state under magnetic fields below T_C. Remarkably, a second shoulder is observed at ∼1 kOe in the dM/dH-vs-H curve, revealing another metastable spin-ordered state in Cu₂OSeO₃. This state is retained and enhanced by applying pressure. As H rises to 55 T, no further slope changes in the M-H curve are observed. These magnetic properties indicate a complex spin orientation in the geometrically spin-frustrated system Cu₂OSeO₃.

Original language	English
Article number	052402
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	83
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.83.052402
State	Published - 15 02 2011
Externally published	Yes

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@article{20b6ac7815f44b7a835c81d2e7fa9cfd,

title = "Observation of a second metastable spin-ordered state in ferrimagnet Cu2OSeO3",

abstract = "dc and ac magnetization measurements were performed on single-crystal Cu2OSeO3 under magnetic field (H) and hydrostatic pressure (P) conditions. Increasing H shifts the ferrimagnetic transition observed at TC\textasciitilde{}60 K to a higher-temperature region. Moreover, the TC increases linearly and magnetization is enhanced with P. Features of the ladder in the M-vs-H curve or the peak in the dM/dH-vs-H curve are observed at H SF\textasciitilde{}0.5 kOe, suggesting a competing ordered state under magnetic fields below TC. Remarkably, a second shoulder is observed at ∼1 kOe in the dM/dH-vs-H curve, revealing another metastable spin-ordered state in Cu2OSeO3. This state is retained and enhanced by applying pressure. As H rises to 55 T, no further slope changes in the M-H curve are observed. These magnetic properties indicate a complex spin orientation in the geometrically spin-frustrated system Cu2OSeO3.",

author = "Huang, \{C. L.\} and Tseng, \{K. F.\} and Chou, \{C. C.\} and S. Mukherjee and Her, \{J. L.\} and Matsuda, \{Y. H.\} and K. Kindo and H. Berger and Yang, \{H. D.\}",

year = "2011",

month = feb,

day = "15",

doi = "10.1103/PhysRevB.83.052402",

language = "英语",

volume = "83",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Observation of a second metastable spin-ordered state in ferrimagnet Cu2OSeO3

AU - Huang, C. L.

AU - Tseng, K. F.

AU - Chou, C. C.

AU - Mukherjee, S.

AU - Her, J. L.

AU - Matsuda, Y. H.

AU - Kindo, K.

AU - Berger, H.

AU - Yang, H. D.

PY - 2011/2/15

Y1 - 2011/2/15

N2 - dc and ac magnetization measurements were performed on single-crystal Cu2OSeO3 under magnetic field (H) and hydrostatic pressure (P) conditions. Increasing H shifts the ferrimagnetic transition observed at TC~60 K to a higher-temperature region. Moreover, the TC increases linearly and magnetization is enhanced with P. Features of the ladder in the M-vs-H curve or the peak in the dM/dH-vs-H curve are observed at H SF~0.5 kOe, suggesting a competing ordered state under magnetic fields below TC. Remarkably, a second shoulder is observed at ∼1 kOe in the dM/dH-vs-H curve, revealing another metastable spin-ordered state in Cu2OSeO3. This state is retained and enhanced by applying pressure. As H rises to 55 T, no further slope changes in the M-H curve are observed. These magnetic properties indicate a complex spin orientation in the geometrically spin-frustrated system Cu2OSeO3.

AB - dc and ac magnetization measurements were performed on single-crystal Cu2OSeO3 under magnetic field (H) and hydrostatic pressure (P) conditions. Increasing H shifts the ferrimagnetic transition observed at TC~60 K to a higher-temperature region. Moreover, the TC increases linearly and magnetization is enhanced with P. Features of the ladder in the M-vs-H curve or the peak in the dM/dH-vs-H curve are observed at H SF~0.5 kOe, suggesting a competing ordered state under magnetic fields below TC. Remarkably, a second shoulder is observed at ∼1 kOe in the dM/dH-vs-H curve, revealing another metastable spin-ordered state in Cu2OSeO3. This state is retained and enhanced by applying pressure. As H rises to 55 T, no further slope changes in the M-H curve are observed. These magnetic properties indicate a complex spin orientation in the geometrically spin-frustrated system Cu2OSeO3.

UR - https://www.scopus.com/pages/publications/79953221139

U2 - 10.1103/PhysRevB.83.052402

DO - 10.1103/PhysRevB.83.052402

M3 - 文章

AN - SCOPUS:79953221139

SN - 1098-0121

VL - 83

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 5

M1 - 052402

ER -

Observation of a second metastable spin-ordered state in ferrimagnet Cu₂OSeO₃

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