Spin clusters and low-energy excitations in rare earth kagome systems

The rare earth kagome systems R3Ga5SiO[Formula: see text] (R = Nd or Pr), which are weakly frustrated antiferromagnets, do not exhibit long-range order at temperatures down to 40 mK as revealed by neutron scattering. The neutron experiments provide evidence for the emergence at low temperatures of correlated spins in nanoscale cluster regions with magnetic field-dependent correlation lengths. A variety of techniques have been used to determine the magnetic and thermal properties of these systems. In particular, high-field electron spin resonance (ESR), nuclear magnetic resonance (NMR) and muon spin resonance ([Formula: see text]SR) experiments have established that dynamic correlation of spins remains significant at temperatures well above 1 K. ESR provides evidence for spin wave excitations in spin clusters and the spectra have been interpreted using a Heisenberg model approach. While Nd[Formula: see text] (J = 9/2) is a Kramers ion Pr[Formula: see text] (J = 4) is not. This difference leads to contrasts in the magnetic properties of the two systems. This review surveys the information that has been obtained on the properties of these kagome materials over the past decade.

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Organosilicon compounds meet subatomic physics: Muon spin resonance

Dalton Transactions ◽

10.1039/c0dt00188k ◽

2010 ◽

Vol 39 (39) ◽

pp. 9209 ◽

Cited By ~ 31

Author(s):

Robert West ◽

Paul W. Percival

Keyword(s):

Muon Spin ◽

Organosilicon Compounds ◽

Spin Resonance ◽

Muon Spin Resonance

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Response of a Doped Mott Insulator to a Local Charge: Implications for Muon Spin Resonance

Physics Procedia ◽

10.1016/j.phpro.2012.04.061 ◽

2012 ◽

Vol 30 ◽

pp. 151-155

Author(s):

Andrew J. Millis

Keyword(s):

Muon Spin ◽

Mott Insulator ◽

Local Charge ◽

Spin Resonance ◽

Doped Mott Insulator ◽

Muon Spin Resonance

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Molecular Dynamics in Rod-Like Liquid Crystals Probed by Muon Spin Resonance Spectroscopy

The Journal of Physical Chemistry B ◽

10.1021/jp203006w ◽

2011 ◽

Vol 115 (30) ◽

pp. 9360-9368 ◽

Cited By ~ 4

Author(s):

Iain McKenzie ◽

Robert Scheuermann ◽

Kamil Sedlak ◽

Alexey Stoykov

Keyword(s):

Molecular Dynamics ◽

Liquid Crystals ◽

Muon Spin ◽

Resonance Spectroscopy ◽

Spin Resonance ◽

Muon Spin Resonance

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Calculation of the avoided level-crossing muon spin resonance response for various stochastic motions using Monte Carlo methods

Chemical Physics ◽

10.1016/0301-0104(95)00385-1 ◽

1996 ◽

Vol 203 (3) ◽

pp. 317-337 ◽

Cited By ~ 18

Author(s):

Philip L.W. Tregenna-Piggott ◽

Emil Roduner ◽

Serge Santos

Keyword(s):

Monte Carlo ◽

Monte Carlo Methods ◽

Muon Spin ◽

Level Crossing ◽

Resonance Response ◽

Spin Resonance ◽

Muon Spin Resonance

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(U, La)S: Muon Spin Resonance (μSR)

Actinide Monochalcogenides - Landolt-Börnstein - Group III Condensed Matter ◽

10.1007/978-3-540-47043-4_92 ◽

2009 ◽

pp. 565-569

Author(s):

R. Troć

Keyword(s):

Muon Spin ◽

Spin Resonance ◽

Muon Spin Resonance

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New Phase Diagram for (U,Th) Be13: A Muon-Spin-Resonance and H c1 Study

Ten Years of Superconductivity: 1980–1990 - Perspectives in Condensed Matter Physics ◽

10.1007/978-94-011-1622-0_18 ◽

1990 ◽

pp. 168-171

Author(s):

R. H. Heffner ◽

J. L. Smith ◽

J. O. Willis ◽

P. Birrer ◽

C. Baines ◽

...

Keyword(s):

Phase Diagram ◽

Muon Spin ◽

Spin Resonance ◽

Muon Spin Resonance ◽

New Phase

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Magnetic Resonance Spectroscopy

Science Progress ◽

10.3184/003685017x14993478654307 ◽

2017 ◽

Vol 100 (3) ◽

pp. 241-292 ◽

Cited By ~ 2

Author(s):

Christopher J. Rhodes

Keyword(s):

Magnetic Resonance ◽

Magnetic Resonance Spectroscopy ◽

Muon Spin ◽

Spectral Lines ◽

Resonance Spectroscopy ◽

Pulsed Epr ◽

Spin Resonance ◽

Muon Spin Resonance ◽

Original Observation

Since the original observation by Zeeman, that spectral lines can be affected by magnetic fields, ‘magnetic spectroscopy’ has evolved into the broad arsenal of techniques known as ‘magnetic resonance’. This review focuses on nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR), and muon spin resonance (μSR): methods which have provided unparalleled insight into the structures, reactivity and dynamics of molecules, and thereby contributed to a detailed understanding of important aspects of chemistry, and the materials, biomedical, and environmental sciences. Magnetic resonance imaging (MRI), in vivo magnetic resonance spectroscopy (MRS) and functional magnetic resonance spectroscopy (fMRS) are also described. EPR is outlined as a principal method for investigating free radicals, along with biomedical applications, and mention is given to the more recent innovation of pulsed EPR techniques. In the final section of the article, the various methods known as μSR are collected under the heading ‘muon spin resonance’, in order to emphasise their complementarity with the more familiar NMR and EPR.

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Partitioning of 2-phenylethanol and limonene cosurfactants in C12E4

Physical Chemistry Chemical Physics ◽

10.1039/c7cp00668c ◽

2017 ◽

Vol 19 (14) ◽

pp. 9551-9557 ◽

Cited By ~ 2

Author(s):

Iain McKenzie ◽

Robert Scheuermann ◽

Ian Tucker

Keyword(s):

Ethylene Glycol ◽

Nonionic Surfactant ◽

Muon Spin ◽

Aqueous Dispersion ◽

Local Environment ◽

Spin Probes ◽

Level Crossing ◽

Spin Resonance ◽

Muon Spin Resonance ◽

Dodecyl Ether

Avoided level-crossing muon spin resonance (ALC-μSR) has been used to study the dynamics and local environment of spin probes formed by muonium (Mu) addition to 2-phenylethanol (PEA) and limonene (1-methyl-4-(1-methylethenyl)-cyclohexene) in an aqueous dispersion of the nonionic surfactant C12E4 (tetra(ethylene glycol) n-dodecyl ether).

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