Antiferromagnet–ferromagnet phase transition in lightly doped manganites

Antiferromagnet–ferromagnet phase transition in lightly doped manganites

Troyanchuk, I.O. ; Khomchenko, V.A. ; Eremenko, V.V. ; Sirenko, V.A. ; Szymczak, H.

Тема: К семидесятилетию антиферромагнетизма

Інший ID: PACS: 75.30.Vn, 75.30.Cr

URI: http://dspace.nbuv.gov.ua/handle/123456789/121702

Посилання: Antiferromagnet–ferromagnet phase transition in lightly doped manganites / I.O. Troyanchuk, V.A. Khomchenko, V.V. Eremenko, V.A. Sirenko, H. Szymczak // Физика низких температур. — 2005. — Т. 31, № 8-9. — С. 1073-1080. — Бібліогр.: 33 назв. — англ.

Підтримка: This work was partly supported by Belarus and Ukrainian Fund for Basic Research (grant F04MS-004 and grant 10.01/001 Ô05K–012) Polish – Ukrainian Academies research project (No.4-2003) and by MES of Ukraine (grant Ì/257-2004).

Дата: 2005

Завантажень: 512

Antiferromagnet–ferromagnet phase transition in lightly doped manganites

Анотація:

Magnetic and structural phase diagrams of the La₀.₈₈MnOx, La₁₋xSrx(Mn₁₋x/₂Nbx/₂)O₃, Nd₁₋xCaxMnO₃, and Bi₁₋xCaxMnO₃ series constructed on the basis of x-ray, neutron powder diffraction, Young’s modulus, magnetization and resistivity measurements are presented. It is shown that the main factor controlling the antiferromagnet–ferromagnet phase transition in the manganites is a type of an orbital state. The results are discussed in the framework of structurally driven magnetic phase separation model.

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