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Giant gate-controlled proximity magnetoresistance in semiconductor-based ferromagnetic–non-magnetic bilayers


The evolution of information technology has been driven by the discovery of new forms of large magnetoresistance, such as giant magnetoresistance1,2 and tunnelling magnetoresistance3,4, in magnetic multilayers. Recently, new types of this effect have been observed in much simpler bilayers consisting of ferromagnetic and non-magnetic thin films5,6,7,8,9,10. However, the magnitude of the change in resistance with magnetic field in these materials is very small, varying between 0.01 and 1%. Here, we demonstrate that non-magnetic–ferromagnetic bilayers consisting of a conducting non-magnetic InAs quantum well and an insulating ferromagnetic (Ga,Fe)Sb layer exhibit giant proximity magnetoresistance of approximately 80% at high magnetic field, and that its magnitude can be controlled by a gate. The mechanism for this large magnetoresistance is a strong magnetic proximity effect. The spin splitting in the InAs quantum well induced by the magnetic proximity effect can be varied between 0.17 meV and 3.8 meV by varying the gate voltage. In principle, this provides a mechanism to locally access Majorana fermions in InAs-based Josephson junctions11,12,13,14 and introduces a new concept of magnetic-gating spin transistors in which the non-magnetic channel current is modulated by both electrical and magnetic means.

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Fig. 1: Device structure, microstructure characterization and magnetotransport.
Fig. 2: Dependence of PMR on the magnetic field direction and strength.
Fig. 3: Theoretical model, fitting and gate voltage dependence of PMR.
Fig. 4: Transistor operation of the FET device fabricated on the InAs/(Ga,Fe)Sb bilayer in sample B.

Data availability

The data that support the findings of this study are available from the corresponding authors on reasonable request.


  1. Baibich, M. N. et al. Giant magnetoresistance of (001)Fe/(001)Cr magnetic superlattices. Phys. Rev. Lett. 61, 2472–2475 (1988).

    Article  ADS  Google Scholar 

  2. Binasch, G., Grünberg, P., Saurenbach, F. & Zinn, W. Enhanced magnetoresistance in layered magnetic structures with antiferromagnetic interlayer exchange. Phys. Rev. B 39, 4828–4830 (1989).

    Article  ADS  Google Scholar 

  3. Yuasa, S., Nagahama, T., Fukushima, A., Suzuki, Y. & Ando, K. Giant room-temperature magnetoresistance in single-crystal Fe/MgO/Fe magnetic tunnel junctions. Nat. Mater. 3, 868–871 (2004).

    Article  ADS  Google Scholar 

  4. Parkin, S. S. P. et al. Giant tunnelling magnetoresistance at room temperature with MgO (100) tunnel barriers. Nat. Mater. 3, 862–867 (2004).

    Article  ADS  Google Scholar 

  5. Nakayama, H. et al. Spin Hall magnetoresistance induced by a nonequilibrium proximity effect. Phys. Rev. Lett. 110, 206601 (2013).

    Article  ADS  Google Scholar 

  6. Cho, S., Baek, S. C., Lee, K.-D., Jo, Y. & Park, B.-G. Large spin Hall magnetoresistance and its correlation to the spin-orbit torque in W/CoFeB/MgO structures. Sci. Rep. 5, 14668 (2015).

    Article  ADS  Google Scholar 

  7. Jackson, C. A. & Stemmer, S. Interface-induced magnetism in perovskite quantum wells. Phys. Rev. B 88, 180403(R) (2013).

    Article  ADS  Google Scholar 

  8. Avci, C. O. et al. Unidirectional spin Hall magnetoresistance in ferromagnet/normal metal bilayers. Nat. Phys. 11, 570–575 (2015).

    Article  Google Scholar 

  9. Yasuda, K. et al. Large unidirectional magnetoresistance in a magnetic topological insulator. Phys. Rev. Lett. 117, 127202 (2016).

    Article  ADS  Google Scholar 

  10. Lv, Y. et al. Unidirectional spin-Hall and Rashba-Edelstein magnetoresistance in topological insulator-ferromagnet layer heterostructures. Nat. Commun. 9, 111 (2018).

    Article  ADS  Google Scholar 

  11. Takayanagi, H. & Kawakami, T. Superconducting proximity effect in the native inversion layer on InAs. Phys. Rev. Lett. 54, 2449–2452 (1985).

    Article  ADS  Google Scholar 

  12. Yu, W. et al. Superconducting proximity effect in inverted InAs/GaSb quantum well structures with Ta electrodes. Appl. Phys. Lett. 105, 192107 (2014).

    Article  ADS  Google Scholar 

  13. Das, A. et al. Zero-bias peaks and splitting in an Al–InAs nanowire topological superconductor as a signature of Majorana fermions. Nat. Phys. 8, 887–895 (2012).

    Article  Google Scholar 

  14. Nakamura, T. et al. Proximity-induced superconductivity in a ferromagnetic semiconductor (In,Fe)As. J. Phys. 969, 012036 (2018).

    Google Scholar 

  15. Ohno, H., Munekata, H., Penney, T., von Molnar, S. & Chang, L. L. Magnetotransport properties of p-type (In,Mn)As diluted magnetic III-V semiconductors. Phys. Rev. Lett. 68, 2664–2667 (1992).

    Article  ADS  Google Scholar 

  16. Ohno, H. Making nonmagnetic semiconductors ferromagnetic. Science 281, 951–956 (1998).

    Article  ADS  Google Scholar 

  17. Hayashi, T. et al. (GaMn)As: GaAs-based III-V diluted magnetic semiconductors grown by molecular beam epitaxy. J. Cryst. Growth 175-176, 1063–1068 (1997).

    Article  ADS  Google Scholar 

  18. Tanaka, M., Ohya, S. & Hai, P. N. Recent progress in III-V based ferromagnetic semiconductors: band structure, Fermi level, and tunneling transport. Appl Phys. Rev. 1, 011102 (2014).

    Article  Google Scholar 

  19. Vobornik, I. et al. Magnetic proximity effect as a pathway to spintronic applications of topological insulators. Nano Lett. 11, 4079–4082 (2011).

    Article  ADS  Google Scholar 

  20. Katmis, F. et al. A high-temperature ferromagnetic topological insulating phase by proximity coupling. Nature 533, 513–516 (2016).

    Article  ADS  Google Scholar 

  21. Žutić, I., Matos-Abiague, A., Scharf, B., Dery, H. & Belashchenko, K. Proximitized materials. Mate. Today 22, 85–107 (2019).

    Article  Google Scholar 

  22. Sau, J. D., Lutchyn, R. M., Tewari, S. & Das Sarma, S. Generic new platform for topological quantum computation using semiconductor heterostructures. Phys. Rev. Lett. 104, 040502 (2010).

    Article  ADS  Google Scholar 

  23. Alicea, J. New directions in the pursuit of Majorana fermions in solid state systems. Rep. Prog. Phys. 75, 076501 (2012).

    Article  ADS  Google Scholar 

  24. Lazić, P., Belashchenko, K. D. & Žutić, I. Effective gating and tunable magnetic proximity effects in two-dimensional heterostructures. Phys. Rev. B 93, 241401(R) (2016).

    Article  ADS  Google Scholar 

  25. Singh, S. et al. Spin inversion in graphene spin valves by gate-tunable magnetic proximity effect at one-dimensional contacts. Nat. Commun. 9, 2869 (2018).

    Article  ADS  Google Scholar 

  26. Haigh, S. J. et al. Magnetoresistance of vertical Co-graphene-NiFe junctions controlled by charge transfer and proximity-induced spin splitting in graphene. 2D Mater. 4, 031004 (2017).

    Article  Google Scholar 

  27. Tu, N. T., Hai, P. N., Anh, L. D. & Tanaka, M. High-temperature ferromagnetism in heavily Fe-doped ferromagnetic semiconductor (Ga,Fe)Sb. Appl. Phys. Lett. 108, 192401 (2016).

    Article  ADS  Google Scholar 

  28. Tu, N. T., Hai, P. N., Anh, L. D. & Tanaka, M. Magnetic properties and intrinsic ferromagnetism in (Ga,Fe)Sb ferromagnetic semiconductors. Phys. Rev. B 92, 144403 (2015).

    Article  ADS  Google Scholar 

  29. Herling, F. et al. Spin-orbit interaction in InAs/GaSb heterostructures quantified by weak antilocalization. Phys. Rev. B 95, 155307 (2017).

    Article  ADS  Google Scholar 

  30. Chiba, T., Takahashi, S. & Bauer, G. E. W. Magnetic-proximity-induced magnetoresistance on topological insulators. Phys. Rev. B 95, 094428 (2017).

    Article  ADS  Google Scholar 

  31. Khosla, R. P. & Fischer, J. R. Magnetoresistance in degenerate CdS: localized magnetic moments. Phys. Rev. B 2, 4084–4097 (1970).

    Article  ADS  Google Scholar 

  32. Sriharsha, K., Anh., L. D., Tu, N. T., Goel, S. & Tanaka, M. Magneto-optical spectra and the presence of an impurity band in p-type ferromagnetic semiconductor (Ga,Fe)Sb with high Curie temperature. APL Mater. 7, 021105 (2019).

    Article  ADS  Google Scholar 

  33. Hai, P. N., Anh, L. D. & Tanaka, M. Electron effective mass in n-type electron-induced ferromagnetic semiconductor (In,Fe)As: evidence of conduction band transport. Appl. Phys. Lett. 101, 252410 (2012).

    Article  ADS  Google Scholar 

  34. Gunnarsson, O. & Lundqvist, B. I. Exchange and correlation in atoms, molecules, and solids by the spin-density-functional formalism. Phys. Rev. B 13, 4274–4298 (1976).

    Article  ADS  Google Scholar 

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A part of this work was conducted at Advanced Characterization Nanotechnology Platform of the University of Tokyo, supported by ‘Nanotechnology Platform’ of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Funding: this work was partly supported by Grants-in-Aid for Scientific Research (numbers 16H02095, 17H04922, 18H05345), the CREST Program (JPMJCR1777) of the Japan Science and Technology Agency, Yazaki Memorial Foundation for Science and Technology, and the Spintronics Research Network of Japan (Spin-RNJ).

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Authors and Affiliations



K.T. and L.D.A. designed the experiments and grew the samples. K.T. performed sample characterizations and transport properties. K.T., D.C. and T.K. fabricated the FET devices. K.T., L.D.A. and T.C. discussed the mechanism and performed theoretical calculations. K.T., L.D.A. and M.T. planned the study and wrote the manuscript.

Corresponding authors

Correspondence to Le Duc Anh or Masaaki Tanaka.

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Supplementary Information

Supplementary Figs. 1–5, Tables 1–3, Notes 1 and 2, and refs. 1–20.

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Takiguchi, K., Anh, L.D., Chiba, T. et al. Giant gate-controlled proximity magnetoresistance in semiconductor-based ferromagnetic–non-magnetic bilayers. Nat. Phys. 15, 1134–1139 (2019).

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