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Evidence For Ferromagnetic Clusters In The Colossal-magnetoresistance Material Eub6

Title: Evidence For Ferromagnetic Clusters In The Colossal-magnetoresistance Material Eub6.
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Name(s): Pohlit, Merlin, author
Roessler, Sahana, author
Ohno, Yuzo, author
Ohno, Hideo, author
von Molnar, Stephan, author
Fisk, Zachary, author
Mueller, Jens, author
Wirth, Steffen, author
Type of Resource: text
Genre: Journal Article
Text
Journal Article
Date Issued: 2018-06-19
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: We combined scanning tunneling microscopy and locally resolved magnetic stray field measurements on the ferromagnetic semimetal EuB6, which exhibits a complex ferromagnetic order and a colossal magnetoresistance effect. In a zero magnetic field, scanning tunneling spectroscopy visualizes the existence of local inhomogeneities in the electronic density of states, which we interpret as the localization of charge carriers due to the formation of magnetic polarons. Micro-Hall magnetometry measurements of the total stray field emanating from the end of a rectangular-shaped platelike sample reveals evidence for magnetic clusters also in finite magnetic fields. In contrast, the signal detected below the faces of the magnetized sample measures a local stray field indicating the formation of pronounced magnetic inhomogeneities consistent with large clusters of percolated magnetic polarons.
Identifier: FSU_libsubv1_wos_000435551200004 (IID), 10.1103/PhysRevLett.120.257201 (DOI)
Keywords: transport, order, phase-separation, magnetic polaron formation
Publication Note: The publisher’s version of record is available at https://doi.org/10.1103/PhysRevLett.120.257201
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000435551200004
Owner Institution: FSU
Is Part Of: Physical Review Letters.
0031-9007
Issue: iss. 25, vol. 120

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Pohlit, M., Roessler, S., Ohno, Y., Ohno, H., Von Molnar, S., Fisk, Z., … Wirth, S. (2018). Evidence For Ferromagnetic Clusters In The Colossal-magnetoresistance Material Eub6. Physical Review Letters. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000435551200004