Disorder from order among anisotropic next-nearest-neighbor Ising spin chains in SrHo2O4
- The John Hopkins Univ., Baltimore, MD (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Outstation at Institut Laue-Langevin, Grenoble Cedex (France); Institut fur Kristallographie der RWTH Aachen Univ., Aachen (Germany)
- Univ. of Tennessee, Knoxville, TN (United States)
- National Institute of Standards and Technology, Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)
- Iowa State Univ., Ames, IA (United States)
- 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
Web of Science
Orbital-exchange and fractional quantum number excitations in an f-electron metal, Yb 2 Pt 2 Pb
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journal | June 2016 |
Orbital-Exchange and Fractional Quantum Number Excitations in an f-electron Metal Yb$_2$Pt$_2$Pb | text | January 2016 |
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