Single magnetic chirality in the magnetoelectric NdFe.sub.3./sub.(.sup.11./sup.BO.sub.3./sub.).sub.4./sub..

0348570 - FZÚ 2011 RIV US eng J - Článek v odborném periodiku
Janoschek, M. - Fischer, P. - Schefer, J. - Roessli, B. - Pomjakushin, V. - Mews, M. - Petříček, Václav - Petrakovskii, G. - Bezmaternikh, L.
Single magnetic chirality in the magnetoelectric NdFe₃(¹¹BO₃)₄.
Physical Review. B. Roč. 81, č. 9 (2010), 094429/1-094429/13. ISSN 1098-0121
Grant ostatní: AV ČR(CZ) AP0701
Program: Akademická prémie - Praemium Academiae
Výzkumný záměr: CEZ:AV0Z10100521
Klíčová slova: magnetic structure * neutron diffraction * phase transition
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 3.772, rok: 2010

We have performed an extensive study of single crystals of the magnetoelectric NdFe₃(¹¹BO₃)₄ by means of a combination of single-crystal neutron diffraction and spherical neutron polarimetry. With respect to magnetic ordering our combined results demonstrate that in the commensurate magnetic phase below TN≈30 K all three magnetic Fe moments and the magnetic Nd moment are aligned ferromagnetically in the basal hexagonal plane but align antiferromagnetically between adjacent planes. The phase transition to the low-temperature incommensurate magnetic structure observed at TIC≈13.5 K appears to be continuous.
Trvalý link: http://hdl.handle.net/11104/0189080