Giant converse magnetoelectric effect in a multiferroic heterostructure with polycrystalline Co2FeSi
Source abstract
Abstract
Abstract To overcome a bottleneck in spintronic applications such as those of ultralow-power magnetoresistive random-access memory devices, the electric-field control of magnetization vectors in ferromagnetic electrodes has shown much promise. Here, we show the giant converse magnetoelectric (CME) effect in a multiferroic heterostructure consisting of the ferromagnetic Heusler alloy Co2FeSi and ferroelectric-oxide Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) for electric-field control of magnetization vectors. Using an in-plane uniaxial magnetic anisotropy of polycrystalline Co2FeSi film grown on PMN-PT(011), the nonvolatile and repeatable magnetization vector switchings in remanent states are demonstrated. The CME coupling coefficient of the polycrystalline Co2FeSi/PMN-PT(011) is over 1.0 × 10−5 s/m at room temperature, comparable to those of single-crystalline Fe1-xGax/PMN-PT systems. The giant CME effect has been demonstrated by the strain-induced variation in the magnetic anisotropy energy of Co2FeSi with an L21-ordered structure. This approach can lead to a new solution to the reduction in the write power in spintronic memory architectures at room temperature.
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Research context
OpenAlex topics: Multiferroics and related materials · Heusler alloys: electronic and magnetic properties · 2D Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (62)
Show source-provided references
1. Brataas, A., Kent, A. D. & Ohno, H. Current-induced torques in magnetic materials. Nat. Mater. 11, 372 (2012).10.1038/nmat3311 ↗
2. Kent, A. D. & Worledge, D. C. A new spin on magnetic memories. Nat. Nanotechnol. 10, 187–191 (2015).10.1038/nnano.2015.24 ↗
3. Bhatti, S. et al. Spintronics based random access memory: a review. Mater. Today 20, 530 (2017).10.1016/j.mattod.2017.07.007 ↗
4. Yuasa, S., Hono, K., Hu, G. & Worledge, D. C. Materials for spin-transfer-torque magnetoresistive random-access memory. MRS Bull. 43, 352–357 (2018).10.1557/mrs.2018.93 ↗
5. Matsukura, F., Tokura, Y. & Ohno, H. Control of magnetism by electric fields. Nat. Nanotechnol. 10, 209–220 (2015).10.1038/nnano.2015.22 ↗
6. Chiba, D. et al. Magnetization vector manipulation by electric fields. Nature 455, 515–518 (2008).10.1038/nature07318 ↗
7. Yamada, Y. et al. Electrically induced ferromagnetism at room temperature in cobalt-doped titanium dioxide. Science 332, 1065–1067 (2011).10.1126/science.1202152 ↗
8. Maruyama, T. et al. Large voltage-induced magnetic anisotropy change in a few atomic layers of iron. Nat. Nanotechnol. 4, 158–161 (2009).10.1038/nnano.2008.406 ↗
9. Nozaki, T. et al. Highly efficient voltage control of spin and enhanced interfacial perpendicular magnetic anisotropy in iridium-doped Fe/MgO magnetic tunnel junctions. NPG Asia Mater. 9, e451 (2017).10.1038/am.2017.204 ↗
10. Schmid, H. Multi-ferroic magnetoelectrics. Ferroelectrics 162, 317 (1994).10.1080/00150199408245120 ↗
11. Kimura, T. et al. Magnetic control of ferroelectric polarization. Nature 426, 55–58 (2003).10.1038/nature02018 ↗
12. Spaldin, N. A. & Fiebig, M. The Renaissance of Magnetoelectric Multiferroics. Science 309, 391–392 (2005).10.1126/science.1113357 ↗
13. Spaldin, N. A. & Ramesh, R. Advances in magnetoelectric multiferroics. Nat. Mater. 18, 203 (2019).10.1038/s41563-018-0275-2 ↗
14. Duan, C. G., Jaswal, S. S. & Tsymbal, E. Y. Predicted magnetoelectric effect in Fe/BaTiO3 multilayers: Ferroelectric control of magnetism. Phys. Rev. Lett. 97, 047201 (2006).10.1103/PhysRevLett.97.047201 ↗
15. Sahoo, S. et al. Ferroelectric control of magnetism in BaTiO3/Fe heterostructures via interface strain coupling. Phys. Rev. B 76, 092108 (2007).10.1103/PhysRevB.76.092108 ↗
16. Wu, T. et al. Electrical control of reversible and permanent magnetization reorientation for magnetoelectric memory devices. Appl. Phys. Lett. 98, 262504 (2011).10.1063/1.3605571 ↗
17. Venkataiah, G., Shirahata, Y., Itoh, M. & Taniyama, T. Manipulation of magnetic coercivity of Fe film in Fe/BaTiO3 heterostructure by electric field. Appl. Phys. Lett. 99, 102506 (2011).10.1063/1.3628464 ↗
18. Venkataiah, G., Wada, E., Taniguchi, H., Itoh, M. & Taniyama, T. Electric-voltage control of magnetism in Fe/BaTiO3 heterostructured multiferroics. J. Appl. Phys. 113, 17C701 (2013).10.1063/1.4793511 ↗
19. Radaelli, G. et al. Electric control of magnetism at the Fe/BaTiO3 interface. Nat. Commun. 5, 3404 (2014).10.1038/ncomms4404 ↗
20. Shirahata, Y. et al. Electric-field switching of perpendicularly magnetized multilayers. NPG Asia Mater. 7, e198 (2015).10.1038/am.2015.72 ↗
21. Zhang, S. et al. Giant electrical modulation of magnetization in Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3(011) heterostructure. Sci. Rep. 4, 3727 (2014).10.1038/srep03727 ↗
22. Cherifi, R. O. et al. Electric-field control of magnetic order above room temperature. Nat. Mater. 13, 345–351 (2014).10.1038/nmat3870 ↗
23. Manipatruni, S. et al. Scalable energy-efficient magnetoelectric spin-orbit logic. Nature 565, 35 (2019).10.1038/s41586-018-0770-2 ↗
24. Hu, J.-M. & Nan, C.-W. Opportunities and challenges for magnetoelectric devices. APL Mater. 7, 080905 (2019).10.1063/1.5112089 ↗
25. Hu, J.-M., Li, Z., Chen, L.-Q. & Nan, C.-W. High-density magnetoresistive random access memory operating at ultralow voltage at room temperature. Nat. Commun. 2, 553 (2011).10.1038/ncomms1564 ↗
26. Zhang, S. et al. Electric-field control of nonvolatile magnetization in Co40Fe40B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 structure at room temperature. Phys. Rev. Lett. 108, 137203 (2012).10.1103/PhysRevLett.108.137203 ↗
27. Zhang, S. et al. Strain-Mediated Coexistence of Volatile and Nonvolatile Converse Magnetoelectric Effects in Fe/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 Heterostructure. ACS Appl. Mater. Interfaces 9, 20637–20647 (2017).10.1021/acsami.7b03051 ↗
28. Wang, J. et al. Giant non-volatile magnetoelectric effects via growth anisotropy in Co40Fe40B20 films on PMN-PT substrates. Appl. Phys. Lett. 114, 092401 (2019).10.1063/1.5078787 ↗
29. Usami, T. et al. Giant magnetoelectric effect in an L21-ordered Co2FeSi/Pb(Mg1/3Nb2/3)O3-PbTiO3 multiferroic heterostructure. Appl. Phys. Lett. 118, 142402 (2021).10.1063/5.0044094 ↗
30. Liu, M. et al. Nonvolatile voltage-controlled magnetization reversal in a spin-valve multiferroic heterostructure. NPG Asia Mater. 13, 64 (2021).10.1038/s41427-021-00333-9 ↗
31. Chen, A. et al. Giant nonvolatile manipulation of magnetoresistance in magnetic tunnel junctions by electric fields via magnetoelectric coupling. Nat. Commun. 10, 243 (2019).10.1038/s41467-018-08061-5 ↗
32. Chen, A. et al. Full voltage manipulation of the resistance of a magnetic tunnel junction. Sci. Adv. 5, eaay5141 (2019).10.1126/sciadv.aay5141 ↗
33. Biswas, A. K., Ahmad, H., Atulasimha, J. & Bandyopadhyay, S. Experimental Demonstration of Complete 180° Reversal of Magnetization in Isolated Co Nanomagnets on a PMN-PT Substrate with Voltage Generated Strain. Nano Lett. 17, 3478–3484 (2017).10.1021/acs.nanolett.7b00439 ↗
34. Begué, A. & Ciria, M. Strain-Mediated Giant Magnetoelectric Coupling in a Crystalline Multiferroic Heterostructure. ACS Appl. Mater. Interfaces 13, 6778–6784 (2021).10.1021/acsami.0c18777 ↗
35. Meisenheimer, P. B. et al. Engineering new limits to magnetostriction through metastability in iron-gallium alloys. Nat. Commun. 12, 2757 (2021).10.1038/s41467-021-22793-x ↗
36. Wang, H. et al. Understanding strong magnetostriction in Fe100−xGax alloys. Sci. Rep. 3, 3521 (2013).10.1038/srep03521 ↗
37. Yang, Z. et al. Scalable Nernst thermoelectric power using a coiled galfenol wire. AIP Adv. 7, 095017 (2017).10.1063/1.5003611 ↗
38. Sakuraba, Y. et al. Giant tunneling magnetoresistance in Co2MnSi/Al-O/Co2MnSi magnetic tunnel junctions. Appl. Phys. Lett. 88, 192508 (2006).10.1063/1.2202724 ↗
39. Felser, C., Fecher, G. H. & Balke, B. Spintronics: A challenge for materials science and solid-state chemistry. Angew. Chem. Int. Ed. 46, 668 (2007).10.1002/anie.200601815 ↗
40. Bombor, D. et al. Half-Metallic Ferromagnetism with Unexpectedly Small Spin Splitting in the Heusler Compound Co2FeSi. Phys. Rev. Lett. 110, 066601 (2013).10.1103/PhysRevLett.110.066601 ↗
41. Kimura, T., Hashimoto, N., Yamada, S., Miyao, M. & Hamaya, K. Room-temperature generation of giant pure spin currents using epitaxial Co2FeSi spin injectors. NPG Asia Mater. 4, e9 (2012).10.1038/am.2012.16 ↗
42. Hamaya, K. et al. Estimation of the spin polarization for Heusler-compound thin films by means of nonlocal spin-valve measurements: Comparison of Co2FeSi and Fe3Si. Phys. Rev. B 85, 100404(R) (2012).10.1103/PhysRevB.85.100404 ↗
43. Guo, Y. et al. The phase transition sequence and the location of the morphotropic phase boundary region in (1-x)[Pb(Mg1/3Nb2/3)O3]- xPbTiO3 single crystal. J. Phys. Condens. Matter 15, L77 (2003).10.1088/0953-8984/15/2/110 ↗
44. See Supplementary information at [URL inserted by publisher] for XRD measurements for Co2FeSi/Fe/PMN-PT(011) heterostructures, polarization switching process of PMN-PT(011), reproducibility of the giant CME effect, anisotropic piezoelectric response in the PMN-PT(011), and characterization of a Fe3Si/PMN-PT(011) heterostructure.
45. Yamada, S. et al. Electric field tunable anisotropic magnetoresistance effect in an epitaxial Co2FeSi/BaTiO3 interfacial multiferroic system. Phys. Rev. Mater. 5, 014412 (2021).10.1103/PhysRevMaterials.5.014412 ↗
46. Ghidini, M. et al. Shear strain-mediated magnetoelectric effects revealed by imaging. Nat. Mater. 18, 840–845 (2019).10.1038/s41563-019-0374-8 ↗
47. Conte, R. L. et al. Influence of Nonuniform Micron-Scale Strain Distributions on the Electrical Reorientation of Magnetic Microstructures in a Composite Multiferroic Heterostructure. Nano Lett. 18, 1952–1961 (2018).10.1021/acs.nanolett.7b05342 ↗
48. Dery, H., Dalal, P., Cywiński, Ł. & Sham, L. J. Spin-based logic in semiconductors for reconfigurable large-scale circuits. Nature 447, 573–576 (2007).10.1038/nature05833 ↗
49. Behin-Aein, B., Datta, D., Salahuddin, S. & Datta, S. Proposal for an all-spin logic device with built-in memory. Nat. Nanotechnol. 5, 266–270 (2010).10.1038/nnano.2010.31 ↗
50. Irwin, J. et al. Magnetoelectric Coupling by Piezoelectric tensor Design. Sci. Rep. 9, 19158 (2019).10.1038/s41598-019-55139-1 ↗
51. Lim, W. C., Choi, G. M., Lee, T. D. & Seo, S. A. Fabrication of Magnetic Tunnel Junctions with Co2FeSi Heusler Alloy and MgO Crystalline Barrier. IEEE Trans. Magn. 44, 2595 (2008).10.1109/TMAG.2008.2003045 ↗
52. Nakatani, T., Li, S., Sakuraba, Y., Furubayashi, T. & Hono, K. Advanced CPP-GMR Spin-Valve Sensors for Narrow Reader Applications. IEEE Trans. Magn. 54, 3300211 (2018).10.1109/TMAG.2017.2753221 ↗
53. Manipatruni, S., Nikonov, D. E. & Young, I. A. Beyond CMOS computing with spin and polarization. Nat. Phys. 14, 338–343 (2018).10.1038/s41567-018-0101-4 ↗
54. Kresse, G. & Furthmüller, J. Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set. Phys. Rev. B 54, 11169 (1996).10.1103/PhysRevB.54.11169 ↗
55. Blöchl, P. E. Projector augmented-wave method. Phys. Rev. B 50, 17953 (1994).10.1103/PhysRevB.50.17953 ↗
56. Kresse, G. & Joubert, D. From ultrasoft pseudopotentials to the projector augmentedwave method. Phys. Rev. B 59, 1758 (1999).10.1103/PhysRevB.59.1758 ↗
57. Perdew, J. P., Burke, K. & Ernzerhof, M. Generalized Gradient Approximation Made Simple. Phys. Rev. Lett. 77, 3865 (1996).10.1103/PhysRevLett.77.3865 ↗
58. Chen, J., Lin, C., Yang, Y., Hu, L. & Cheng, W. Ab initio study of the magnetoelectric effect and critical thickness for ferroelectricity in Co2FeSi/BaTiO3 multiferroic tunnel junctions. Model. Simul. Mater. Sci. Eng. 22, 015008 (2014).10.1088/0965-0393/22/1/015008 ↗
59. Nakamura, S. & Gohda, Y. Prediction of ferromagnetism in MnB and MnC on nonmagnetic transition-metal surfaces studied by first-principles calculations. Phys. Rev. B 96, 245416 (2017).10.1103/PhysRevB.96.245416 ↗
60. Torbatian, Z., Ozaki, T., Tsuneyuki, S. & Gohda, Y. Strain effects on the magnetic anisotropy of Y2Fe14B examined by first-principles calculations”. Appl. Phys. Lett. 104, 242403 (2014).10.1063/1.4883840 ↗
61. Yanase, Y. & Harima, H. Lecture on fundamental solid state physics: Spin-orbit interactions and electronic states in crystals (part 1). Solid State Phys. 46, 229 (2011). [in Japanese].
62. Ozaki, T. Variationally optimized atomic orbitals for large-scale electronic structures. Phys. Rev. B 67, 155108 (2003).10.1103/PhysRevB.67.155108 ↗