Magnetotransport properties of perovskite La-Ba-Mn-O-deposited films on Si substrates

Jong Cheol Lee, Sang Yub Ie, Seung Iel Park, Chul Sung Kim, Kwangho Jeong

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

To obtain high MR ratio near room temperature in thin films grown on Si substrate, La-Ba-Mn-O thin films were prepared with various substrate temperature (TS) from 600°C to 720°C by RF magnetron sputtering, and the structural and magnetotransport properties were studied. All films were annealed at 800°C for 30 min in ambient. The structures, magnetic properties and compositions of La-Ba-Mn-O thin films have been studied with X-ray diffraction, X-ray photoemission spectroscopy, Rutherford back-scattering spectroscopy and vibrating sample magnetometer. The MR was measured using square-probe array method in the magnetic field of 0-1.5T. The films were polycrystalline with (1 0 0) and (1 1 0) orientations and showed pseudocubic perovskite structure. The maximum MR ratio of thin film with TS of 680°C is 0.62 under a relatively low field of 1.5 T. Moreover, it is important to notice that the MR ratio reached 0.3 near room temperature in thin films with TS of 600°C and 680°C.

Original languageEnglish
Pages (from-to)592-594
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume254-255
DOIs
Publication statusPublished - 2003 Jan 1
EventSMM15 - Bilbao, Spain
Duration: 2001 Sep 52001 Sep 7

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Magnetotransport properties of perovskite La-Ba-Mn-O-deposited films on Si substrates'. Together they form a unique fingerprint.

  • Cite this