Giant magnetic coercivity and ionic superlattice nano-domains in Fe 0.25TaS2

Y. J. Choi; S. B. Kim; T. Asada; S. Park; Weida Wu; Y. Horibe; S. W. Cheong

doi:10.1209/0295-5075/86/37012

Giant magnetic coercivity and ionic superlattice nano-domains in Fe _0.25TaS₂

Y. J. Choi, S. B. Kim, T. Asada, S. Park, Weida Wu, Y. Horibe, S. W. Cheong

Department of Physics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We have explored giant magnetic coercivity (H_c≈7 tesla) in the highly anisotropic ferromagnet of Fe_0.25TaS₂ through harnessing order of Fe²⁺ ions intercalated in-between TaS₂ layers. Fe ions order well in annealed crystals and form a (1/2,0,0) superlattice. However, a (1/3,1/3,0) superlattice, in addition to the (1/2,0,0) superlattice, can form in quenched crystals. These coexisting superlattices with nano-size domains result in significant change of magnetic domain configurations and huge enhancement of H_c, probably through efficient magnetic domain wall pinning by nano-size superlattice domains.

Original language	English
Article number	37012
Journal	EPL
Volume	86
Issue number	3
DOIs	https://doi.org/10.1209/0295-5075/86/37012
Publication status	Published - 2009

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1209/0295-5075/86/37012

Fingerprint Dive into the research topics of 'Giant magnetic coercivity and ionic superlattice nano-domains in Fe <sub>0.25</sub>TaS<sub>2</sub>'. Together they form a unique fingerprint.

Cite this

@article{b30c833ea14942449071b130bbb928e0,

title = "Giant magnetic coercivity and ionic superlattice nano-domains in Fe 0.25TaS2",

abstract = "We have explored giant magnetic coercivity (Hc≈7 tesla) in the highly anisotropic ferromagnet of Fe0.25TaS2 through harnessing order of Fe2+ ions intercalated in-between TaS2 layers. Fe ions order well in annealed crystals and form a (1/2,0,0) superlattice. However, a (1/3,1/3,0) superlattice, in addition to the (1/2,0,0) superlattice, can form in quenched crystals. These coexisting superlattices with nano-size domains result in significant change of magnetic domain configurations and huge enhancement of Hc, probably through efficient magnetic domain wall pinning by nano-size superlattice domains.",

author = "Choi, {Y. J.} and Kim, {S. B.} and T. Asada and S. Park and Weida Wu and Y. Horibe and Cheong, {S. W.}",

year = "2009",

doi = "10.1209/0295-5075/86/37012",

language = "English",

volume = "86",

journal = "Europhysics Letters",

issn = "0295-5075",

publisher = "IOP Publishing Ltd.",

number = "3",

}

TY - JOUR

T1 - Giant magnetic coercivity and ionic superlattice nano-domains in Fe 0.25TaS2

AU - Choi, Y. J.

AU - Kim, S. B.

AU - Asada, T.

AU - Park, S.

AU - Wu, Weida

AU - Horibe, Y.

AU - Cheong, S. W.

PY - 2009

Y1 - 2009

N2 - We have explored giant magnetic coercivity (Hc≈7 tesla) in the highly anisotropic ferromagnet of Fe0.25TaS2 through harnessing order of Fe2+ ions intercalated in-between TaS2 layers. Fe ions order well in annealed crystals and form a (1/2,0,0) superlattice. However, a (1/3,1/3,0) superlattice, in addition to the (1/2,0,0) superlattice, can form in quenched crystals. These coexisting superlattices with nano-size domains result in significant change of magnetic domain configurations and huge enhancement of Hc, probably through efficient magnetic domain wall pinning by nano-size superlattice domains.

AB - We have explored giant magnetic coercivity (Hc≈7 tesla) in the highly anisotropic ferromagnet of Fe0.25TaS2 through harnessing order of Fe2+ ions intercalated in-between TaS2 layers. Fe ions order well in annealed crystals and form a (1/2,0,0) superlattice. However, a (1/3,1/3,0) superlattice, in addition to the (1/2,0,0) superlattice, can form in quenched crystals. These coexisting superlattices with nano-size domains result in significant change of magnetic domain configurations and huge enhancement of Hc, probably through efficient magnetic domain wall pinning by nano-size superlattice domains.

UR - http://www.scopus.com/inward/record.url?scp=79051469820&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79051469820&partnerID=8YFLogxK

U2 - 10.1209/0295-5075/86/37012

DO - 10.1209/0295-5075/86/37012

M3 - Article

AN - SCOPUS:79051469820

VL - 86

JO - Europhysics Letters

JF - Europhysics Letters

SN - 0295-5075

IS - 3

M1 - 37012