DataVXAdvanced Materials InterfacesPaper
journal article·2021-05Open access

Bipolar Conduction and Giant Positive Magnetoresistance in Doped Metallic Titanium Oxide Heterostructures

Ke Huang, Tao Wang, Mengjia Jin, Liang Wu, Junyao Floria Wang, Shengyao Li, Dong‐Chen Qi, Shuying Cheng, Yangyang Li, Jingsheng Chen, Xiaozhong He, Changjian Li, Stephen J. Pennycook, Xiao Renshaw Wang

Advanced Materials Interfaces· Volume 8· Issue 9
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Abstract

Abstract Empowering conventional materials with unexpected magnetoelectric properties is appealing to the multi‐functionalization of existing devices and the exploration of future electronics. Recently, owing to its unique effect in modulating a matter's properties, ultra‐small dopants, for example, H, D, and Li, attract enormous attention in creating emergent functionalities, such as superconductivity, and metal–insulator transition. Here, an observation of bipolar conduction accompanied by a giant positive magnetoresistance in D‐doped metallic Ti oxide (TiOxDy) films is reported. To overcome the challenges in intercalating the D into a crystalline oxide, a series of TiOxDy is formed by sequentially doping Ti with D and surface/interface oxidation. Intriguingly, while the electron mobility of the TiOxDy increases by an order of magnitude larger after doping, the emergent holes also exhibit high mobility. Moreover, the bipolar conduction induces a giant magnetoresistance up to 900% at 6 T, which is ≈6 times higher than its conventional phase. This study paves a way to empower conventional materials in existing electronics and induce novel electronic phases.
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Research context

OpenAlex topics: Electronic and Structural Properties of Oxides · Magnetic and transport properties of perovskites and related materials · Multiferroics and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore

Institute of Fluid Physics CAEP P. O. Box 919‐106 Mianyang 621900 P. R. China

College of Physics and Information Engineering Institute of Micro‐Nano Devices and Solar Cells Fuzhou University Fuzhou 350108 P. R. China

School of Material Science and Engineering Kunming University of Science and Technology Kunming Yunnan 650093 P. R. China

Hwa Chong Institution (College) Singapore 269734 Singapore

Centre for Materials Science School of Chemistry and Physics Queensland University of Technology Brisbane Queensland 4001 Australia

Department of Materials Science and Engineering National University of Singapore Singapore 117575 Singapore

School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Ave Singapore 639798 Singapore

Funding

Nanyang Technological University · National Research Foundation Singapore · National Natural Science Foundation of China

References (45)

Show source-provided references
1. 10.1038/s41928-019-0301-710.1038/s41928-019-0301-7 ↗
2. 10.1038/s41928-019-0273-710.1038/s41928-019-0273-7 ↗
3. 10.1038/s41563-019-0456-710.1038/s41563-019-0456-7 ↗
4. 10.1038/nature0230810.1038/nature02308 ↗
5. 10.1038/nnano.2015.31410.1038/nnano.2015.314 ↗
6. 10.1038/s41535-018-0100-910.1038/s41535-018-0100-9 ↗
7. 10.1088/0034-4885/79/8/08450510.1088/0034-4885/79/8/084505 ↗
8. 10.1146/annurev.matsci.36.010705.15542810.1146/annurev.matsci.36.010705.155428 ↗
9. 10.1038/nmat330210.1038/nmat3302 ↗
10. 10.1038/s41467-019-08613-310.1038/s41467-019-08613-3 ↗
11. 10.1038/nature2500810.1038/nature25008 ↗
12. 10.1038/s41467-017-01202-210.1038/s41467-017-01202-2 ↗
13. 10.1103/PhysRevMaterials.3.10340110.1103/PhysRevMaterials.3.103401 ↗
14. 10.1103/PhysRevB.1.242410.1103/PhysRevB.1.2424 ↗
15. 10.1039/C7DT02319G10.1039/C7DT02319G ↗
16. 10.1021/cr400606n10.1021/cr400606n ↗
17. 10.1021/cm00027a00810.1021/cm00027a008 ↗
18. 10.1021/acsami.8b0920010.1021/acsami.8b09200 ↗
19. 10.1143/JPSJ.18.101010.1143/JPSJ.18.1010 ↗
20. 10.1016/0079-6786(71)90018-510.1016/0079-6786(71)90018-5 ↗
21. 10.1063/1.170779610.1063/1.1707796 ↗
22. 10.1016/j.physleta.2014.07.01510.1016/j.physleta.2014.07.015 ↗
23. 10.1126/science.107003010.1126/science.1070030 ↗
24. 10.1038/212811a010.1038/212811a0 ↗
25. 10.1021/cr60277a00310.1021/cr60277a003 ↗
26. 10.1021/acs.chemrev.6b0044110.1021/acs.chemrev.6b00441 ↗
27. 10.1016/0168-583X(95)01471-310.1016/0168-583X(95)01471-3 ↗
28. 10.1063/1.145626110.1063/1.1456261 ↗
29. 10.1002/admi.20160020110.1002/admi.201600201 ↗
30. 10.2138/am.2007.234410.2138/am.2007.2344 ↗
31. 10.1038/ncomms714710.1038/ncomms7147 ↗
32. 10.1038/s41535-016-0006-310.1038/s41535-016-0006-3 ↗
33. 10.1063/1.165544110.1063/1.1655441 ↗
34. 10.1103/PhysRevB.82.20140710.1103/PhysRevB.82.201407 ↗
35. 10.1103/PhysRevLett.104.16680410.1103/PhysRevLett.104.166804 ↗
36. 10.1063/1.170282010.1063/1.1702820 ↗
37. 10.1007/s11467-017-0663-010.1007/s11467-017-0663-0 ↗
38. 10.1103/PhysRevB.95.15520110.1103/PhysRevB.95.155201 ↗
39. 10.1038/srep3429510.1038/srep34295 ↗
40. 10.1002/pssa.221075022210.1002/pssa.2210750222 ↗
41. 10.1038/3630610.1038/36306 ↗
42. 10.1126/science.284.5418.133510.1126/science.284.5418.1335 ↗
43. 10.1021/acs.nanolett.9b0127510.1021/acs.nanolett.9b01275 ↗
44. 10.1073/pnas.180874711510.1073/pnas.1808747115 ↗
45. 10.1038/ncomms989210.1038/ncomms9892 ↗