Imperial College London

Professor David W. McComb

Faculty of EngineeringDepartment of Materials

Adjunct Professor
 
 
 
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Contact

 

+44 (0)20 7594 6750d.mccomb Website

 
 
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Location

 

Royal 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}
}

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 -