Manna, Kaustuv and Bera, AK and Jain, Manish and Elizabeth, Suja and Yusuf, SM and Kumar, Anil PS (2015) Structural-modulation-driven spin canting and reentrant glassy magnetic phase in ferromagnetic Lu2MnNiO6. In: PHYSICAL REVIEW B, 91 (22).
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Abstract
Unusual behavior of reentrant spin-glass (RSG) compound Lu2MnNiO6 has been investigated by magnetometry and neutron diffraction. The system possesses a ferromagnetic (FM) ordering below 40 K and undergoes a RSG transition at 20 K. Additionally, Lu2MnNiO6 retains memory effect above the glassy transition till spins sustain ordering. A novel critical behavior with unusual critical exponents (beta =similar to 0.241 and gamma similar to 1.142) is observed that indicates a canting in the spin structure below the ferromagnetic transition (T-C). A comprehensive analysis of temperature-dependent neutron diffraction data and first-principles calculations divulge that a structural distortion induced by an octahedral tilting results in a canted spin structure below T-C.
Item Type: | Journal Article |
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Publication: | PHYSICAL REVIEW B |
Publisher: | AMER PHYSICAL SOC |
Additional Information: | Copy right for this article belongs to the AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 19 Jul 2015 09:34 |
Last Modified: | 19 Jul 2015 09:34 |
URI: | http://eprints.iisc.ac.in/id/eprint/51869 |
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