Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 46, Pages 16838-16843Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja9061568
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Funding
- Japan Society for the Promotion of Science (JSPS) [ANR-08-JCJC-0113-01]
- MEXT (Japan)
- Murata Science Foundation
- University of Tokyo
- UPMC
- Univ Paris 06
- CNRS
- Grants-in-Aid for Scientific Research [20675001] Funding Source: KAKEN
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The absence of centrosymmetry in the enantiopure chiral magnet [N(CH3)(n-C3H7)(2)((CH)-H-star(CH3)C2H5)][(MnCrIII)-Cr-II(ox)(3)] allows the observation of bulk second harmonic generation (SHG) in this material. At low temperature, the onset of magnetization gives birth to a magnetization-induced SHG (MSHG) contribution. With an angular shift of 13.1 degrees upon magnetization reversal, the MSHG effects appear to be much larger than the corresponding linear magneto-optical effects. Thanks to the single-crystalline state of the sample, the variation of the signal with the orientation of the magnetic field and/or the angle between the polarization of the incident radiation and the outgoing SHG signal in the paramagnetic and ferromagnetic phases is reproduced and well-understood through the use of a symmetry-based analysis of the nonlinear susceptibility tensor.
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