Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2}
We report our investigations on the effects of pressure on the electronic and magnetic properties of magnetic Dirac semimetal EuMnBi_{2} by using electrical transport, synchrotron x-ray diffraction, and x-ray absorption spectroscopy. The antiferromagnetic interaction due to the Eu magnetic moment in...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.043028 |
| _version_ | 1797210927771156480 |
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| author | Resta A. Susilo Wen Deng Jiajia Feng Aifeng Wang Naomi Kawamura Naoki Ishimatsu Saori Kawaguchi Mingzhi Yuan He Li Weijun Ren Takeshi Nakagawa Cedomir Petrovic Bin Chen |
| author_facet | Resta A. Susilo Wen Deng Jiajia Feng Aifeng Wang Naomi Kawamura Naoki Ishimatsu Saori Kawaguchi Mingzhi Yuan He Li Weijun Ren Takeshi Nakagawa Cedomir Petrovic Bin Chen |
| author_sort | Resta A. Susilo |
| collection | DOAJ |
| description | We report our investigations on the effects of pressure on the electronic and magnetic properties of magnetic Dirac semimetal EuMnBi_{2} by using electrical transport, synchrotron x-ray diffraction, and x-ray absorption spectroscopy. The antiferromagnetic interaction due to the Eu magnetic moment in EuMnBi_{2} is enhanced under pressure up to ∼3.9GPa. The Néel temperature (T_{N}) is found to disappear above 4 GPa and a new transition T_{t} at around 29 K emerges above 6 GPa. T_{t} remains relatively constant up to 15 GPa, above which it increases with further compression, reaching ∼60K at 22 GPa. Eu L-edge x-ray absorption spectroscopy revealed a valence change of Eu toward a trivalent state that begins above 6 GPa, which indicates that T_{t} is likely related to the valence transition temperature of Eu. Sign reversal of the Hall resistivity above 7 GPa suggests that the valence change of Eu also induces a Fermi surface modification. |
| first_indexed | 2024-04-24T10:18:22Z |
| format | Article |
| id | doaj.art-5edde3c9c649463a88057220aa736710 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:18:22Z |
| publishDate | 2021-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-5edde3c9c649463a88057220aa7367102024-04-12T17:14:43ZengAmerican Physical SocietyPhysical Review Research2643-15642021-10-013404302810.1103/PhysRevResearch.3.043028Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2}Resta A. SusiloWen DengJiajia FengAifeng WangNaomi KawamuraNaoki IshimatsuSaori KawaguchiMingzhi YuanHe LiWeijun RenTakeshi NakagawaCedomir PetrovicBin ChenWe report our investigations on the effects of pressure on the electronic and magnetic properties of magnetic Dirac semimetal EuMnBi_{2} by using electrical transport, synchrotron x-ray diffraction, and x-ray absorption spectroscopy. The antiferromagnetic interaction due to the Eu magnetic moment in EuMnBi_{2} is enhanced under pressure up to ∼3.9GPa. The Néel temperature (T_{N}) is found to disappear above 4 GPa and a new transition T_{t} at around 29 K emerges above 6 GPa. T_{t} remains relatively constant up to 15 GPa, above which it increases with further compression, reaching ∼60K at 22 GPa. Eu L-edge x-ray absorption spectroscopy revealed a valence change of Eu toward a trivalent state that begins above 6 GPa, which indicates that T_{t} is likely related to the valence transition temperature of Eu. Sign reversal of the Hall resistivity above 7 GPa suggests that the valence change of Eu also induces a Fermi surface modification.http://doi.org/10.1103/PhysRevResearch.3.043028 |
| spellingShingle | Resta A. Susilo Wen Deng Jiajia Feng Aifeng Wang Naomi Kawamura Naoki Ishimatsu Saori Kawaguchi Mingzhi Yuan He Li Weijun Ren Takeshi Nakagawa Cedomir Petrovic Bin Chen Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2} Physical Review Research |
| title | Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2} |
| title_full | Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2} |
| title_fullStr | Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2} |
| title_full_unstemmed | Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2} |
| title_short | Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi_{2} |
| title_sort | impacts of pressure to the structural electronic and magnetic properties of dirac semimetal eumnbi 2 |
| url | http://doi.org/10.1103/PhysRevResearch.3.043028 |
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