Giant resistance switching effect in nano-scale twinned La₀.₆₅Ca₀.₃₅MnO₃ film

Giant resistance switching effect in nano-scale twinned La₀.₆₅Ca₀.₃₅MnO₃ film

Prokhorov, V.G. ; Kaminsky, G.G. ; Komashko, V.A. ; Lee, Y.P. ; Tovstolytkin, A.I. ; Pogorily, A.N.

Тема: Низкоразмерные и неупорядоченные системы

Інший ID: PACS: 71.30.+h, 75.30.Vn, 75.70.-i

URI: http://dspace.nbuv.gov.ua/handle/123456789/128719

Посилання: Giant resistance switching effect in nano-scale twinned La₀.₆₅Ca₀.₃₅MnO₃ film / V.G. Prokhorov, G.G. Kaminsky, V.A. Komashko, Y.P. Lee, A.I. Tovstolytkin A. N. Pogorily // Физика низких температур. — 2002. — Т. 28, № 11. — С. 1199-1202. — Бібліогр.: 19 назв. — англ.

Підтримка: This work was supported by a Korea Research Foundation Grant (KRF-2001-015-DS0015) and by the Science and Technology Center of Ukraine through Project No. 1086.

Дата: 2002

Завантажень: 399

Giant resistance switching effect in nano-scale twinned La₀.₆₅Ca₀.₃₅MnO₃ film

Анотація:

The magnetic and transport properties of a 20 nm-scale twinned La₀.₆₅Ca₀.₃₅ MnO₃ film are investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic and charge-ordered insulating phases is suggested by analyzing the temperature and current dependences of the resistance at low temperatures. It is shown that thermocycling leads to the formation of a nonequilibrium state in the ensemble of charge-ordered domains and to the appearance of a giant switching in resistance of up to 100%. The experimental results are discussed on the basis of phase separation.

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