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Precursor Phenomena at the Magnetic Ordering of the Cubic Helimagnet FeGe

DOI: 10.1103/PhysRevLett.107.127203 DOI Help
PMID: 22026794 PMID Help

Authors: H. Wilhelm (Diamond Light Source) , M. Baenitz (Max Planck Institute for Chemical Physics of Solids) , M. Schmidt (Max Planck Institute for Chemical Physics of Solids) , U. K. Roessler (IFW Dresden) , A. A. Leonov (IFW Dresden) , A. N. Bogdanov (IFW Dresden)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review Letters , VOL 107 (12)

State: Published (Approved)
Published: September 2011

Abstract: We report on detailed magnetic measurements on the cubic helimagnet FeGe in external magnetic fields and temperatures near the onset of long-range magnetic order at T C =278.2(3)??K . Precursor phenomena display a complex succession of temperature-driven crossovers and phase transitions in the vicinity of T C . The A -phase region, present below T C and fields H<0.5??kOe , is split in several pockets. The complexity of the magnetic phase diagram is theoretically explained by the confinement of solitonic kinklike or Skyrmionic units that develop an attractive and oscillatory intersoliton coupling owing to the longitudinal inhomogeneity of the magnetization.

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Added On: 17/10/2011 14:54

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