Hole-Doping Effect on the Spin State and Microscopic Magnetic Properties of La1-xSrxCoO3 (0.LEQ.x.LEQ.0.5): 59Co and 139La NMR Measurements.
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- Itoh Masayuki
- Department of Physics, Faculty of Science, Chiba University, Yayoi–cho, Inage–ku, Chiba 263
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- Natori Ikuomi
- Department of Physics, Faculty of Science, Chiba University, Yayoi–cho, Inage–ku, Chiba 263
Bibliographic Information
- Other Title
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- Hole-Doping Effect on the Spin State and Microscopic Magnetic Properties of La1-xSrxCoO3(0≦x≦0.5)--59Co and 139La NMR Measurements
- Hole Doping Effect on the Spin State an
- Hole-Doping Effect on the Spin State and Microscopic Magnetic Properties of<b><i>L</i><i>a</i><sub>1-<i>x</i></sub><i>S</i><i>r</i><sub><i>x</i></sub><i>C</i><i>o</i><i>O</i><sub>3</sub></b>(0≤<i><i>x</i></i>≤0.5):<b><sup>59</sup><i>C</i><i>o</i></b>and<b><sup>139</sup><i>L</i><i>a</i></b>NMR Measurements
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Abstract
59Co and 139La NMR measurements have been made to reveal microscopically the hole-doping effect on the spin state and magnetic properties of La1-xSrxCoO3 (0{\le}x{\le}0.5). The signal from the Co atoms with no Sr nearest neighbors was observed in the spin-glass region below xc--0.18. From the analysis of the temperature dependence of the Knight shift, the ground state of such Co atoms was found to be the trivalent low-spin state 1A1g. Above xc, we observed at 4.2, K the 59Co and 139La signals which come from the cluster-glass region with a finite ferromagnetic correlation. Thus, it was microscopically confirmed that the boundary between the two regions is located at xc--0.18.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 64 (3), 970-975, 1995
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679158961536
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- NII Article ID
- 110001956902
- 210000099224
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- NII Book ID
- AA00704814
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- BIBCODE
- 1995JPSJ...64..970I
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 3609616
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed