Abstract
The ferromagnetic-metal (FM) to antiferromagnetic-insulator (AFI) transition, near 250 K, has been induced in epitaxially shear-strained La0.67Ca0.33MnO3/NdGaO3(001) films, although they are doped for a FM ground state. We showed that for these films the phase diagram can feature the five regions of paramagnetic-insulator, FM, AFI dominated, FM dominated, and the frozen state, evolving with decreasing temperatures. And the phase instabilities in the temperature/magnetic-field regime can lead to multiple metal-insulator transitions over the various phase boundaries, in addition to a huge low-field magnetoresistance in the wide temperature range. The results underline that with the elastic-driven phase separation and consequently the complex phase evolution, this epitaxial system could be employed for further understanding of the manganites, and also for thin-film devices applications.
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Dates
Type | When |
---|---|
Created | 14 years, 10 months ago (Oct. 28, 2010, 10:45 a.m.) |
Deposited | 2 years, 1 month ago (Aug. 2, 2023, 4:56 a.m.) |
Indexed | 1 month, 1 week ago (July 30, 2025, 6:55 a.m.) |
Issued | 14 years, 10 months ago (Oct. 15, 2010) |
Published | 14 years, 10 months ago (Oct. 15, 2010) |
Published Online | 14 years, 10 months ago (Oct. 27, 2010) |
Published Print | 14 years, 10 months ago (Oct. 15, 2010) |
@article{Huang_2010, title={Phase evolution and the multiple metal-insulator transitions in epitaxially shear-strained La0.67Ca0.33MnO3/NdGaO3(001) films}, volume={108}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.3499650}, DOI={10.1063/1.3499650}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Huang, Zhen and Wang, Lingfei and Tan, Xuelian and Chen, Pingfan and Gao, Guanyin and Wu, Wenbin}, year={2010}, month=oct }