Abstract
The paper discusses the stabilization of the martensite in Ni2MnGa at finite temperatures that is caused by the substitution of Ni by Pt. For this purpose a recently developed ab initio based formalism employing density functional theory is applied. The free energies of the relevant austenite and martensite phases of Ni1.75Pt0.25MnGa are determined incorporating quasiharmonic phonons and fixed-spin magnons. In addition the dependence of the transition temperatures on the Pt concentration is investigated. Though our results are in qualitative agreement with estimates based on ground-state energies, they clearly demonstrate that a proper treatment of finite temperature contributions is important to predict the martensitic transition quantitatively.
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K. Ullakko, J.K. Huang, C. Kantner, R.C. O’Handley, and V.V. Kokorin, Large Magnetic-Field-Induced Strains in Ni2MnGa Single Crystals, Appl. Phys. Lett., 1996, 69(13), p 1966-1968, in English
A. Planes, L. Mañosa, and M. Acet, Magnetocaloric Effect and its Relation to Shape-Memory Properties in Ferromagnetic Heusler Alloys, J. Phys. Condens. Matter, 2009, 21(23), p 233201
P. Entel, A. Dannenberg, M. Siewert, H.C. Herper, M.E. Gruner, V.D. Buchelnikov, and V.A. Chernenko, Composition-Dependent Basics of Smart Heusler Materials from First-Principles Calculations, Mater. Sci. Forum, 2011, 684, p 1-29
M. Siewert, M.E. Gruner, A. Hucht, H.C. Herper, A. Dannenberg, A. Chakrabarti, N. Singh, R. Arróyave, and P. Entel, A First-Principles Investigation of the Compositional Dependent Properties of Magnetic Shape Memory Heusler Alloys, Adv. Eng. Mater, 2012, 14(8), p 530-546
A. Sozinov, A.A. Likhachev, N. Lanska, and K. Ullakko, Giant Magnetic-Field-Induced Strain in NiMnGa Seven-Layered Martensitic Phase, Appl. Phys. Lett., 2002, 80(10), p 1746-1748
A. Sozinov, N. Lanska, A. Soroka, and W. Zou, 12% Magnetic Field-Induced Strain in Ni-Mn-Ga-Based Non-modulated Martensite, Appl. Phys. Lett., 2013, 102(2), p 021902
K. Koho, O. Soderberg, N. Lanska, Y. Ge, X. Liu, L. Straka, J. Vimpari, O. Heczko, and V.K. Lindroos, Effect of the Chemical Composition to Martensitic Transformation in Ni-Mn-Ga-Fe Alloys, Mater. Sci. Eng. A, 2004, 378(1–2), p 384-388, in English
H. Morito, K. Oikawa, A. Fujita, K. Fukamichi, R. Kainuma, and K. Ishida, Enhancement of Magnetic-Field-Induced Strain in Ni–Fe–Ga–Co Heusler Alloy, Scr. Mater., 2005, 53(11), p 1237-1240
M. Siewert, M.E. Gruner, A. Dannenberg, A. Chakrabarti, H.C. Herper, M. Wuttig, S.R. Barman, S. Singh, A. Al-Zubi, T. Hickel, J. Neugebauer, M. Gillessen, R. Dronskowski, and P. Entel, Designing Shape-Memory Heusler Alloys from First-Principles, Appl. Phys. Lett., 2011, 99(19), p 191904
S. Singh, K.R.A. Ziebeck, E. Suard, P. Rajput, S. Bhardwaj, A.M. Awasthi, and S.R. Barman, Modulated Structure in the Martensite Phase of Ni1.8Pt0.2MnGa: A Neutron Diffraction Study, Appl. Phys. Lett., 2012, 101(17), p 171904
T. Hickel, B. Grabowski, F. Körmann, and J. Neugebauer, Advancing Density Functional Theory to Finite Temperatures: Methods and Applications in Steel Design, J. Phys. Condens. Matter, 2012, 24(5), p 053202
M.A. Uijttewaal, T. Hickel, J. Neugebauer, M.E. Gruner, and P. Entel, Understanding the Phase Transitions of the Ni2MnGa Magnetic Shape Memory System from First Principles, Phys. Rev. Lett., 2009, 102, p 035702
T. Hickel, M.A. Uijttewaal, A. Al-Zubi, B. Dutta, B. Grabowski, and J. Neugebauer, Ab-Initio Based Prediction of Phase Diagrams: Application to Magnetic Shape Memory Alloys, Adv. Eng. Mater, 2012, 14(8), p 547-561
F. Körmann, A. Dick, B. Grabowski, T. Hickel, and J. Neugebauer, Atomic Forces at Finite Magnetic Temperatures: Phonons in Paramagnetic Iron, Phys. Rev. B, 2012, 85, p 125104
G. Kresse and J. Furthmüller, Efficient Iterative Schemes for Ab Initio Total-Energy Calculations Using a Plane-Wave Basis Set, Phys. Rev. B, 1996, 54(16), p 11169-11186
G. Kresse and D. Joubert, From Ultrasoft Pseudopotentials to the Projector Augmented-Wave Method, Phys. Rev. B, 1999, 59(3), p 1758-1775
P.E. Blöchl, Projector Augmented-Wave Method, Phys. Rev. B, 1994, 50(24), p 17953-17979
J.P. Perdew, K. Burke, and M. Ernzerhof, Generalized Gradient Approximation Made Simple, Phys. Rev. Lett., 1996, 77(18), p 3865-3868
P.E. Blöchl, O. Jepsen, and O.K. Andersen, Improved Tetrahedron Method for Brillouin-Zone Integrations, Phys. Rev. B, 1994, 49(23), p 16223-16234
M. Methfessel and A.T. Paxton, High-Precision Sampling for Brillouin-Zone Integration in Metals, Phys. Rev. B, 1989, 40(6), p 3616-3621
S. Boeck, C. Freysoldt, A. Dick, L. Ismer, and J. Neugebauer, The Object-Oriented DFT Program Library S/PHI/nX, Comput. Phys. Commun., 2011, 182(3), p 543-554
A.I. Liechtenstein, M.I. Katsnelson, V.P. Antropov, and V.A. Gubanov, Local Spin Density Functional Approach to the Theory of Exchange Interactions in Ferromagnetic Metals and Alloys, J. Magn. Magn. Mater., 1987, 67(1), p 65-74
H. Ebert, Electronic Structure and Physical Properties of Solids, Lecture Notes in Physics, H. Dreysee, Ed., Springer, Berlin, 1999, p 191-246
H. Ebert, D. Ködderitzsch, and J. Minár, Calculating Condensed Matter Properties Using the KKR-Green’s Function Method—Recent Developments and Applications, Rep. Prog. Phys., 2011, 74(9), p 096501
B. Dutta, A. Al-Zubi, T. Hickel, J. Neugebauer, Chemical Trends for Phase Transitions in Ni-Mn-Ga Derived from First Principles, Phys. Rev. Lett, in preparation.
N.D. Mermin, Thermal Properties of the Inhomogeneous Electron Gas, Phys. Rev., 1965, 137(5A), p A1441-A1443
J. Xie, S. de Gironcoli, S. Baroni, and M. Scheffler, First-Principles Calculation of the Thermal Properties of Silver, Phys. Rev. B, 1999, 59(2), p 965-969
J. Enkovaara, A. Ayuela, J. Jalkanen, L. Nordström, and R.M. Nieminen, First Principles Calculations of Spin Spirals in Ni2MnGa and Ni2MnAl, Phys. Rev. B, 2003, 67, p 054417
V.L. Moruzzi, P.M. Marcus, K. Schwarz, and P. Mohn, Ferromagnetic Phases of bcc and fcc Fe Co, and Ni, Phys. Rev. B, 1986, 34(3), p 1784-1791
M.D. Kuz’min, Shape of Temperature Dependence of Spontaneous Magnetization of Ferromagnets: Quantitative Analysis, Phys. Rev. Lett., 2005, 94, p 107204
V.V. Khovailo, V. Novosad, T. Takagi, D.A. Filippov, R.Z. Levitin, and A.N. Vasil’ev, Magnetic Properties and Magnetostructural Phase Transitions in Ni2+xMn1−xGa Shape Memory Alloys, Phys. Rev. B, 2004, 70, p 174413
T. Krenke, M. Acet, E.F. Wassermann, X. Moya, L. Mañosa, and A. Planes, Ferromagnetism in the Austenitic and Martensitic States of Ni-Mn-In Alloys, Phys. Rev. B, 2006, 73, p 174413
P. Entel, M. Siewert, M.E. Gruner, H.C. Herper, D. Comtesse, R. Arróyave, N. Singh, A. Talapatra, V.V. Sokolovskiy, V.D. Buchelnikov, F. Albertini, L. Righi, and V.A. Chernenko, Complex Magnetic Ordering as a Driving Mechanism of Multifunctional Properties of Heusler Alloys from First Principles, Eur. Phys. J. B., 2013, 86, p 65
D. Comtesse, M.E. Gruner, M. Ogura, V.V. Sokolovskiy, V.D. Buchelnikov, A. Grünebohm, R. Arróyave, N. Singh, T. Gottschall, O. Gutfleisch, V.A. Chernenko, F. Albertini, S. Fähler, and P. Entel, First-Principles Calculation of the Instability Leading to Giant Inverse Magnetocaloric Effects, Phys. Rev. B, 2014, 89, p 184403
P. Entel, Unpublished Result
P.J. Webster, K.R.A. Ziebeck, S.L. Town, and M.S. Peak, Magnetic Order and Phase Transformation in Ni2MnGa, Philos. Mag. B, 1984, 49(3), p 295-310
N. Saunders and A.P. Miodownik, CALPHAD (Calculation of Phase Diagrams): A Comprehensive Guide, Pergamon Materials Series, Vol. 1, Pergamon, Elsevier Science, Oxford, 1998
Acknowledgment
We acknowledge Deutsche Forschungsgemeinschaft (DFG) for providing funding for this work within the priority program SPP1599. BD acknowledges Blazej Grabowski, Fritz Körmann, Poulumi Dey and Albert Glensk for useful discussions. TH acknowledges the always stimulating discussions with the 2014 Hume-Rothery award recipient Rainer Schmid-Fetzer.
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Dutta, B., Hickel, T., Entel, P. et al. Ab Initio Predicted Impact of Pt on Phase Stabilities in Ni-Mn-Ga Heusler Alloys. J. Phase Equilib. Diffus. 35, 695–700 (2014). https://doi.org/10.1007/s11669-014-0342-6
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DOI: https://doi.org/10.1007/s11669-014-0342-6