Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method
The evolution of 3d electronic structure associated with the martensitic transformation and ferromagnetic transition in non-stoichiometric Ni₂MnGa alloy possessing the shape magnetic memory were studied by electron-energy loss spectroscopy (EELS) and with theoretical modeling methods. The EELS spect...
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| Published in: | Functional Materials |
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| Date: | 2006 |
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| Format: | Article |
| Language: | English |
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НТК «Інститут монокристалів» НАН України
2006
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/134178 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method / R.Ochoa-Gamboa, H.Flores-Zuniga, F.Espinosa-Magana, D.Rios-Jara, I.Glavatskyy, N.Glavatska // Functional Materials. — 2006. — Т. 13, № 3. — С. 468-473. — Бібліогр.: 22 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862643417198100480 |
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| author | Ochoa-Gamboa, R. Flores-Zuniga, H. Espinosa-Magana, F. Rios-Jara, D. Glavatskyy, I. Glavatska, N. |
| author_facet | Ochoa-Gamboa, R. Flores-Zuniga, H. Espinosa-Magana, F. Rios-Jara, D. Glavatskyy, I. Glavatska, N. |
| citation_txt | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method / R.Ochoa-Gamboa, H.Flores-Zuniga, F.Espinosa-Magana, D.Rios-Jara, I.Glavatskyy, N.Glavatska // Functional Materials. — 2006. — Т. 13, № 3. — С. 468-473. — Бібліогр.: 22 назв. — англ. |
| collection | DSpace DC |
| container_title | Functional Materials |
| description | The evolution of 3d electronic structure associated with the martensitic transformation and ferromagnetic transition in non-stoichiometric Ni₂MnGa alloy possessing the shape magnetic memory were studied by electron-energy loss spectroscopy (EELS) and with theoretical modeling methods. The EELS spectra of Ni-Mn-Ga crystals have been obtained under in-situ heating to study the electron structure of ferromagnetic (FM) martensite, FM austenite and paramagnetic austenite. When considering the EELS spectra, the total white lines intensity L₂₃ = L₂ + L₃ as well as as well as the L₃/L₂ ratio and conclusions have been drawn on the occupancy of the 3d state fromAs L₂₃ reflects the unoccupied density of states in 3d bands, these results indicate that no charge transfer has taken place during martensitic transformation and changes in the magnetic dipole moments at phase transitions. The experimental results have shown that the magnetic dipole moment on Ni atoms decreases at the reverse martensitic transformationwhile it increases on Mn, and the charge is observed to be redistributed between Mn and Ni in agreement with ab-initio numerical calculations.
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| first_indexed | 2025-12-01T08:11:37Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-134178 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1027-5495 |
| language | English |
| last_indexed | 2025-12-01T08:11:37Z |
| publishDate | 2006 |
| publisher | НТК «Інститут монокристалів» НАН України |
| record_format | dspace |
| spelling | Ochoa-Gamboa, R. Flores-Zuniga, H. Espinosa-Magana, F. Rios-Jara, D. Glavatskyy, I. Glavatska, N. 2018-06-12T17:08:50Z 2018-06-12T17:08:50Z 2006 Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method / R.Ochoa-Gamboa, H.Flores-Zuniga, F.Espinosa-Magana, D.Rios-Jara, I.Glavatskyy, N.Glavatska // Functional Materials. — 2006. — Т. 13, № 3. — С. 468-473. — Бібліогр.: 22 назв. — англ. 1027-5495 https://nasplib.isofts.kiev.ua/handle/123456789/134178 The evolution of 3d electronic structure associated with the martensitic transformation and ferromagnetic transition in non-stoichiometric Ni₂MnGa alloy possessing the shape magnetic memory were studied by electron-energy loss spectroscopy (EELS) and with theoretical modeling methods. The EELS spectra of Ni-Mn-Ga crystals have been obtained under in-situ heating to study the electron structure of ferromagnetic (FM) martensite, FM austenite and paramagnetic austenite. When considering the EELS spectra, the total white lines intensity L₂₃ = L₂ + L₃ as well as as well as the L₃/L₂ ratio and conclusions have been drawn on the occupancy of the 3d state fromAs L₂₃ reflects the unoccupied density of states in 3d bands, these results indicate that no charge transfer has taken place during martensitic transformation and changes in the magnetic dipole moments at phase transitions. The experimental results have shown that the magnetic dipole moment on Ni atoms decreases at the reverse martensitic transformationwhile it increases on Mn, and the charge is observed to be redistributed between Mn and Ni in agreement with ab-initio numerical calculations. en НТК «Інститут монокристалів» НАН України Functional Materials Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method EELS Дослідження електронної структури сплаву Ni-Mn-Ga з ефектом магнітної пам'яті форми Article published earlier |
| spellingShingle | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method Ochoa-Gamboa, R. Flores-Zuniga, H. Espinosa-Magana, F. Rios-Jara, D. Glavatskyy, I. Glavatska, N. |
| title | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method |
| title_alt | EELS Дослідження електронної структури сплаву Ni-Mn-Ga з ефектом магнітної пам'яті форми |
| title_full | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method |
| title_fullStr | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method |
| title_full_unstemmed | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method |
| title_short | Electronic structure of Ni-Mn-Ga magnetic shape memory alloy studied be EELS method |
| title_sort | electronic structure of ni-mn-ga magnetic shape memory alloy studied be eels method |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/134178 |
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