http://repository.iitr.ac.in/handle/123456789/13428| Title: | Spin reorientation in NdFe0.5Mn0.5 O3: Neutron scattering and ab initio study |
| Authors: | Singh A. Jain A. Ray A. Padmanabhan B. Yadav R. Nassif V. Husain S. Yusuf S.M. Maitra, Tulika Malik, Vivek K. |
| Published in: | Physical Review B |
| Abstract: | The structural, magnetic, and electronic properties of NdFe0.5Mn0.5O3 have been studied in a comprehensive manner using various experimental and theoretical methods. Mn/Fe sublattice of the compound orders into a G-type antiferromagnetic phase close to 250 K where the magnetic structure belongs to Γ1 irreducible representation (Gy) unlike Γ4 (Gx) representation observed in most of the orthoferrites and orthochromites. The magnetic structure undergoes a complete spin reorientation transition with temperature between 75 and 25 K where the magnetic structure exists as a sum of two irreducible representations (Γ1+Γ2). At 1.5 K, the antiferromagnetic structure belongs entirely to Γ2 representation (Gz) with a small ferromagnetic component (Fx) due to Nd. The unusual spin reorientation and correlation between magnetic ground state and electronic structure have been investigated using phenomenological theory and first-principles calculations within GGA+U and GGA+U+SO formalisms. © 2017 American Physical Society. |
| Citation: | Physical Review B (2017), 96(14): - |
| URI: | https://doi.org/10.1103/PhysRevB.96.144420 http://repository.iitr.ac.in/handle/123456789/13428 |
| Issue Date: | 2017 |
| Publisher: | American Physical Society |
| ISSN: | 24699950 |
| Author Scopus IDs: | 57212846130 36071861700 57213109680 8238440100 55864340800 12790423300 57190069963 55579177700 7004183343 24758795000 |
| Author Affiliations: | Singh, A., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India Jain, A., Solid State Physics Division, Bhabha Atomic Research Center, Mumbai, 400 085, India, Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India Ray, A., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India Padmanabhan, B., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India Yadav, R., Laboratory for Scientific Developments and Novel Materials, Paul Scherrer Institut, Villigen, CH-5232, Switzerland Nassif, V., Université Grenoble-Alpes, Institut Néel, 25 Avenue des Martyrs-BP166, Grenoble Cedex 9, 38042, France, Centre Nationale de la Recherche Scientifique, Institut Néel, 25 Avenue des Martyrs-BP166, Grenoble Cedex 9, 38042, France, Institut Laue -Langevin, 71 Avenue des Martyrs, Grenoble Cedex 9, 38000, France Husain, S., Thin Film Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi, 110 016, India Yusuf, S.M., Solid State Physics Division, Bhabha Atomic Research Center, Mumbai, 400 085, India, Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India Maitra, T., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India Malik, V.K., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India |
| Funding Details: | This work was supported by the UGC-DAE Consortium for Scientific Research (CSR), Science and Engineering Research Board (SERB), and IIT Roorkee through CRS-M-228, ECR/2015/000136, and FIG-100661, respectively. A.S., A.R., and S.H. acknowledge MHRD, CSIR, and DST-INSPIRE, respectively, for their research fellowships. Authors would like to thank Prof. Sujeet Chaudhary, IIT Delhi for fruitful discussion on magnetization measurements. Authors also acknowledge the help provided by Ripandeep Singh in performing neutron diffraction experiments at PD-II, BARC, Mumbai. |
| Appears in Collections: | Journal Publications [PH] |
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