Home > Publications database > Variation of the magnetic properties of Ni2MnGa Heusler alloy upon tetragonalization: a first-principles study > print |
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024 | 7 | _ | |2 DOI |a 10.1088/0022-3727/44/23/235001 |
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082 | _ | _ | |a 530 |
084 | _ | _ | |2 WoS |a Physics, Applied |
100 | 1 | _ | |a Galanakis, I. |b 0 |0 P:(DE-HGF)0 |
245 | _ | _ | |a Variation of the magnetic properties of Ni2MnGa Heusler alloy upon tetragonalization: a first-principles study |
260 | _ | _ | |a Bristol |b IOP Publ. |c 2011 |
300 | _ | _ | |a 235001 |
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440 | _ | 0 | |a Journal of Physics D - Applied Physics |x 0022-3727 |0 3700 |y 23 |v 44 |
500 | _ | _ | |3 POF3_Assignment on 2016-02-29 |
500 | _ | _ | |a Record converted from VDB: 12.11.2012 |
520 | _ | _ | |a We study the influence of the tetragonalization occurring during the martensitic phase transition on the exchange interactions in Ni2MnGa Heusler alloy using first-principles calculations in conjunction with the frozen-magnon approximation. We show that the tetragonalization alters only the exchange constants characterizing the Mn-Mn interactions. Calculated Curie temperatures within the random-phase approximation are found to agree with experimental data. Moreover, we study the temperature dependence of the magnetization and the small deviation from the experimental data exactly at the temperature of the phase transition is discussed. Obtained results agree with previous theoretical results using Liechtenstein's formula to calculate the exchange constants and the Monte Carlo simulation technique to estimate the Curie temperature. |
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700 | 1 | _ | |a Sasioglu, E. |b 1 |u FZJ |0 P:(DE-Juel1)VDB63896 |
773 | _ | _ | |a 10.1088/0022-3727/44/23/235001 |g Vol. 44, p. 235001 |p 235001 |q 44<235001 |0 PERI:(DE-600)1472948-9 |t Journal of physics / D |v 44 |y 2011 |x 0022-3727 |
856 | 7 | _ | |u http://dx.doi.org/10.1088/0022-3727/44/23/235001 |
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