Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals
The rare earth nickelates RNiO_{3} are metallic at high temperatures and insulating and magnetically ordered at low temperatures. The low temperature phase has been predicted to be type II multiferroic, i.e., ferroelectric and magnetic order are coupled and occur simultaneously. Confirmation of thos...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-07-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.033007 |
| _version_ | 1827285694127538176 |
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| author | I. Ardizzone J. Teyssier I. Crassee A. B. Kuzmenko D. G. Mazzone D. J. Gawryluk M. Medarde D. van der Marel |
| author_facet | I. Ardizzone J. Teyssier I. Crassee A. B. Kuzmenko D. G. Mazzone D. J. Gawryluk M. Medarde D. van der Marel |
| author_sort | I. Ardizzone |
| collection | DOAJ |
| description | The rare earth nickelates RNiO_{3} are metallic at high temperatures and insulating and magnetically ordered at low temperatures. The low temperature phase has been predicted to be type II multiferroic, i.e., ferroelectric and magnetic order are coupled and occur simultaneously. Confirmation of those ideas has been inhibited by the absence of experimental data on single crystals. Here we report on Raman spectroscopic data of RNiO_{3} single crystals (R = Y, Er, Ho, Dy, Sm, Nd) for temperatures between 10 and 1000 K. Entering the magnetically ordered phase we observe the appearance of a large number of additional vibrational modes, implying a breaking of inversion symmetry expected for multiferroic order. |
| first_indexed | 2024-04-24T10:19:03Z |
| format | Article |
| id | doaj.art-0e616d67062d499c91a01168f68ed5ab |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:19:03Z |
| publishDate | 2021-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-0e616d67062d499c91a01168f68ed5ab2024-04-12T17:11:21ZengAmerican Physical SocietyPhysical Review Research2643-15642021-07-013303300710.1103/PhysRevResearch.3.033007Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystalsI. ArdizzoneJ. TeyssierI. CrasseeA. B. KuzmenkoD. G. MazzoneD. J. GawrylukM. MedardeD. van der MarelThe rare earth nickelates RNiO_{3} are metallic at high temperatures and insulating and magnetically ordered at low temperatures. The low temperature phase has been predicted to be type II multiferroic, i.e., ferroelectric and magnetic order are coupled and occur simultaneously. Confirmation of those ideas has been inhibited by the absence of experimental data on single crystals. Here we report on Raman spectroscopic data of RNiO_{3} single crystals (R = Y, Er, Ho, Dy, Sm, Nd) for temperatures between 10 and 1000 K. Entering the magnetically ordered phase we observe the appearance of a large number of additional vibrational modes, implying a breaking of inversion symmetry expected for multiferroic order.http://doi.org/10.1103/PhysRevResearch.3.033007 |
| spellingShingle | I. Ardizzone J. Teyssier I. Crassee A. B. Kuzmenko D. G. Mazzone D. J. Gawryluk M. Medarde D. van der Marel Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals Physical Review Research |
| title | Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals |
| title_full | Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals |
| title_fullStr | Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals |
| title_full_unstemmed | Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals |
| title_short | Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals |
| title_sort | raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals |
| url | http://doi.org/10.1103/PhysRevResearch.3.033007 |
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