Imperial College London
Alternate

DrPeterPetrov

Faculty of Engineering, Department of Materials

Principal Research Scientist
 
 
 
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Contact

 

+44 (0)20 7594 8156p.petrov

 
 
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Location

 

2.03DRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Boldrin:2018:10.1021/acsami.8b03112,
author = {Boldrin, D and Mihai, A and Zou, B and Zemen, J and Thompson, R and Ware, E and Neamtu, B and Ghivelder, L and Esser, B and McComb, DW and Petrov, PK and Cohen, LF},
doi = {10.1021/acsami.8b03112},
journal = {ACS Appl Mater Interfaces},
pages = {18863--18868},
title = {Giant Piezomagnetism in Mn3NiN.},
url = {http://dx.doi.org/10.1021/acsami.8b03112},
volume = {10},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Controlling magnetism with electric field directly or through strain-driven piezoelectric coupling remains a key goal of spintronics. Here we demonstrate that giant piezomagnetism, a linear magneto-mechanic coupling effect, is manifest in antiperovskite Mn3NiN, facilitated by its geometrically frustrated antiferromagnetism opening the possibility of new memory device concepts. Films of Mn3NiN with intrinsic biaxial strains of ±0.25% result in Néel transition shifts up to 60K and magnetisation changes consistent with theory. Films grown on BaTiO3 display a striking magnetisation jump in response to uniaxial strain from the intrinsic BaTiO3 structural transition, with an inferred 44% strain coupling efficiency and a magnetoelectric coefficient α (where α=dB/dE) of 0.018 G cm/V. The latter agrees with the 1000-fold increase over Cr2O3 predicted by theory. Overall our observations pave the way for further research into the broader family of Mn-based antiperovskites where yet larger piezomagnetic effects are predicted to occur at room temperature.
AU  - Boldrin,D
AU  - Mihai,A
AU  - Zou,B
AU  - Zemen,J
AU  - Thompson,R
AU  - Ware,E
AU  - Neamtu,B
AU  - Ghivelder,L
AU  - Esser,B
AU  - McComb,DW
AU  - Petrov,PK
AU  - Cohen,LF
DO  - 10.1021/acsami.8b03112
EP  - 18868
PY  - 2018///
SP  - 18863
TI  - Giant Piezomagnetism in Mn3NiN.
T2  - ACS Appl Mater Interfaces
UR  - http://dx.doi.org/10.1021/acsami.8b03112
UR  - https://www.ncbi.nlm.nih.gov/pubmed/29726252
UR  - http://hdl.handle.net/10044/1/60110
VL  - 10
ER  -
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