Magnetic field induced phase transformation in polycrystalline NiCoMnAl thin films Academic Article

abstract

• NiCoMnAl thin films were deposited onto unheated substrates using dc magnetron co-sputtering. The microstructure of as-deposited films consisted of nanocrystals in an amorphous matrix and did not exhibit a martensitic phase transformation. After heat treatment, films crystallized into a B2 austenite phase, which exhibited a magnetic field induced martensitic phase transformation. The level of the change in the martensitic transformation temperatures in the magnetic field was determined to be 2.1K/T. The films exhibited non-reversible magnetic field induced martensite to austenite transformation due to the large thermal hysteresis.

authors

• Karaman, Ibrahim

published proceedings

• APPLIED PHYSICS LETTERS

author list (cited authors)

• Rios, S., Bufford, D., Karaman, I., Wang, H., & Zhang, X.

citation count

• 12

complete list of authors

• Rios, S||Bufford, D||Karaman, I||Wang, H||Zhang, X

publication date

• September 2013

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

keywords

• 40 Engineering
• 4016 Materials Engineering
• 51 Physical Sciences

Digital Object Identifier (DOI)

• 10.1063/1.4821945

start page

• 132404

volume

• 103

issue

• 13

URL

• http://dx.doi.org/10.1063/1.4821945