Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.1904155
Title: Magnetic and electrical properties of La 0.7Sr 0.3MnO 3- Zn 0.8Co 0.2Al 0.01O junctions on silicon substrates
Authors: Yan, L. 
Goh, W.C. 
Ong, C.K. 
Issue Date: 15-May-2005
Citation: Yan, L., Goh, W.C., Ong, C.K. (2005-05-15). Magnetic and electrical properties of La 0.7Sr 0.3MnO 3- Zn 0.8Co 0.2Al 0.01O junctions on silicon substrates. Journal of Applied Physics 97 (10) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1904155
Abstract: p-n and n-p junctions based on the p -type La0.7 Sr0.3 Mn O3 (LSMO) and the n -type Zn0.8 Co0.2 Al0.01 O (ZCAO) have been fabricated on silicon substrates via pulsed laser deposition. Both LSMO and ZCAO thin layers deposited on Si had good remanent magnetic characteristics at room temperature. The metal-semiconductor transition temperature (Tp) of the ZCAOLSMO n-p junction is lower than that of the pure LSMO layer, which is due to the influence of the top ZCAO layer. The low-field (±3 kOe) magnetoresistance (LFMR) value of the ZCAOLSMO n-p junction is about -15% at 80 K, which is lower than that of the pure LSMO layer on Si (-21%). As deposited on top of ZCAOSi, the LSMO layer has no LFMR property. The LSMOZCAO p-n junction has good current flow versus voltage (I-V) property with a threshold voltage of about 1.5 V at 80-300 K, which is very similar to normal Si-based p-n diode. Its I-V characteristics cannot be modulated by low external magnetic fields. However, the ZCAOLSMO n-p junction demonstrated a nonlinear I-V behavior, and its current flow can be modulated by low external magnetic fields. The resistance variation of the ZCAOLSMO n-p junction was -15% under forward bias voltages as the external magnetic field varied from 0 to 3 kOe. © 2005 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/113087
ISSN: 00218979
DOI: 10.1063/1.1904155
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

6
checked on Jul 19, 2019

WEB OF SCIENCETM
Citations

5
checked on Jul 19, 2019

Page view(s)

48
checked on Jul 19, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.