Radiation damage effects on transport and colossal magnetoresistance in La((1-x))CaxMnO3 Academic Article

abstract

• The effects of crystal lattice disorder induced by irradiation of La-Ca-Mn-O films are reviewed. These experiments provide insight into the anomalous transport properties and colossal magnetoresistance (CMR) of these perovskites. Electron irradiation produces only slight lattice damage, about 10-5 displacements per atom (dpa) which would be imperceptible in an ordinary "bad" metal or activated semiconductor but gives large changes in resistance that illustrate the exotic nature of transport in both the metallic and insulating phases of the CMR films. Ion irradiation produces damage ranging from 510-3 dpa to 2.410-2 dpa which provides a systematic picture of CMR and transport from relatively small lattice disorder to more severe disorder, sufficient to completely supress the metal-insulator (M-I) transition.

authors

• Naugle, Donald

published proceedings

• INTERNATIONAL JOURNAL OF MODERN PHYSICS B

author list (cited authors)

• Naugle, D. G., Rathnayaka, K., & Belevtsev, B. I.

citation count

• 1

complete list of authors

• Naugle, DG||Rathnayaka, KDD||Belevtsev, BI

publication date

• December 1999

publisher

• World Scientific Publishing  Publisher

published in

• INTERNATIONAL JOURNAL OF MODERN PHYSICS B  Journal

keywords

• 51 Physical Sciences
• 5104 Condensed Matter Physics

Digital Object Identifier (DOI)

• 10.1142/S0217979299003970

start page

• 3815

end page

• 3819

volume

• 13

issue

• 29-31

URL

• http%3A%2F%2Fdx.doi.org%2F10.1142%2Fs0217979299003970