Sh.sh. Bashkirov

Messbauerovskie Issledovaniya Perovskitopodobnykh Oksidov: Kristallicheskaya Struktura I Magnitnaya Mikrostruktura Redkozemel'nykh Zhelezosoderzhashchikh Perovskitopodobnykh Oksidov Sh.sh. Bashkirov Russian edition

Postoyannoe rasshirenie oblasti primeneniya zhelezosoderzhashchikh oksidov trebuet sozdaniya soedineniy s razlichnymi svoystvami. Mnogoobrazie kationnykh zameshcheniy v perovskitopodobnykh kristallakh otkryvaet bol'shie vozmozhnosti dlya polucheniya veshchestv s novymi svoystvami. V ramkakh nastoyashchego issledovaniya nami izucheny kristallicheskaya struktura i magnitnaya mikrostruktura redkozemel'nykh ortoferritov LnFe(2/3) Mo(1/3) O(3) (Ln = La, Ce, Pr, Nd) i slozhnykh oksidov s kislorod-defitsitnymi strukturami perovskita tipa 4-1-5 Pr(4) BaCu(5-kh) Fe(x) O(13-?) (kh = 1, 1,5; ? = 0, 0,5), 8-8-20 Ln(8-y) Sr(y) Cu(8-kh) Fe(kh) O(20) (u = 1,6?4, x = 1,6?3, Ln = La, Pr, Nd) i 1-2-3 YBa(2-y) La(y) Cu(2,88) Fe(0,12) O(7-?), Y(1-y) Sa(y) Ba(2-y) La(y) Cu(3-x) Fe(x) O(7-?) (u = 0,25, 0,5; x = 0,06, 0,12; ? ? 0,5). Osnovnym metodom issledovaniya yavlyalas' messbauerovskaya spektroskopiya, takzhe ispol'zovalsya rentgenostrukturnyy analiz.