On the growth and physical-chemical characterization of Tb5Si2Ge2 thin films produced by electron-beam evaporation

• Type: Article in International Conference Proceedings Book
• Date: 2015

Authors

Pires, AL (Author) Other; Belo, JH (Author) Other; Gomes, IT (Author) Other; Fernandes, L (Author) Other; Tavares, PB (Author) Other; Lopes, AML (Author) Other; pereira, a. m. (Author) FCUP; araujo, j. p. (Author) FCUP

Conference proceedings International

Title: MATERIALS TODAY-PROCEEDINGS

Pages: 26-32

5th International Conference on Advanced Nanomaterials (ANM)

Aveiro, PORTUGAL, JUL 02-04, 2014

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-00G-X0F

DOI: 10.1016/j.matpr.2015.04.004

Abstract (EN): This pioneering work reports on the production of Tb5Si2Ge2 thin films by e-beam evaporation. Scanning Electron Microscopy images unveil the fabrication of dense and homogenous thin films, prepared with a beam current of 25 mA and 31 mA. For the as-deposited thin films, the magnetic susceptibility versus temperature curves reveals that both samples are in the paramagnetic state in all range of temperature (5-370K). Nevertheless, after a 400 degrees C heat treatment for 2 hours, it was possible to promote a magnetic transition at 112 K, which is characteristic of the magnetic transition of the bulk counterpart. These achievements are a step forward for magnetic refrigeration technology since the obtained transition is the one responsible of the magnetocaloric effect.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7