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Title: Disorder from order among anisotropic next-nearest-neighbor Ising spin chains in SrHo2O4

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [2];  [1];  [1];  [3];  [4];  [5];  [6];  [7]
  1. The John Hopkins Univ., Baltimore, MD (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Outstation at Institut Laue-Langevin, Grenoble Cedex (France); Institut fur Kristallographie der RWTH Aachen Univ., Aachen (Germany)
  4. Univ. of Tennessee, Knoxville, TN (United States)
  5. National Institute of Standards and Technology, Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)
  6. Iowa State Univ., Ames, IA (United States)
  7. The John Hopkins Univ., Baltimore, MD (United States); Oak Ridge National Lab., Oak Ridge, TN (United States); National Institute of Standards and Technology, Gaithersburg, MD (United States)

Here, we describe why Ising spin chains with competing interactions in SrHo2O4 segregate into ordered and disordered ensembles at low temperatures (T). Using elastic neutron scattering, magnetization, and specific heat measurements, the two distinct spin chains are inferred to have Neel (↑↓↑↓) and double-Neel (↑↑↓↓) ground states, respectively. Below TN = 0.68(2) K, the Neel chains develop three-dimensional long range order (LRO), which arrests further thermal equilibration of the double-Neel chains so they remain in a disordered incommensurate state for T below TS = 0.52(2) K. SrHo2O4 distills an important feature of incommensurate low dimensional magnetism: kinetically trapped topological defects in a quasi-d-dimensional spin system can preclude order in d + 1 dimensions.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-08ER46544; AC02-07CH11358; DMR0944772; AC05-00OR22725
OSTI ID:
1227213
Alternate ID(s):
OSTI ID: 1181180; OSTI ID: 1333648
Report Number(s):
IS-J-8630; PRBMDO
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 91, Issue 5; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (24)

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Short range ordering in the modified honeycomb lattice compound SrHo 2 O 4 journal April 2011
Magnetisation Studies of Geometrically Frustrated Antiferromagnets Sr Ln 2 O 4 , with Ln = Er, Dy, and Ho journal February 2012
Low temperature magnetic structure of geometrically frustrated SrHo 2 O 4 journal December 2012
Highly frustrated magnetism in SrHo 2 O 4 : Coexistence of two types of short-range order journal July 2013
Evidence for SrHo 2 O 4 and SrDy 2 O 4 as model J 1 - J 2 zigzag chain materials journal June 2014
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