Research on magnetic phase transitions in frustrated fcc-iron alloys by μSR-method

Barsov, S.; Getalov, A. L.; Koptev, V.; Kotov, S.; Kuzmin, L. A.; Mikirtychyants, S.; Shcherbakov, G. V.; Gasnikova, G. P.; Menschikov, A. Z.

doi:10.1007/bf02069447

Cited by 3 publications

(1 citation statement)

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“…As the temperature is decreased for a fixed concentration beyond the critical concentration needed for ferromagnetism, there is an onset of ferromagnetism and at lower temperatures there is a spin canting, where the spin components perpendicular to the magnetisation direction freeze without loss of ferromagnetic order parallel to the domain magnetisation. At lower temperatures still, low energy fluctuations appear; there is an increase in the muon spin relaxation rate [112,113] which is related to slow fluctuations corresponding to the spin glass.…”

Section: Spin Glasses Liquids and Icesmentioning

confidence: 99%

Muon spin spectroscopy: magnetism, soft matter and the bridge between the two

Nuccio

Schulz

Drew

2014

J. Phys. D: Appl. Phys.

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The use of implanted muons to probe the spin dynamics and electronic excitations in a variety of magnetic and non-magnetic materials is reviewed and is split into three main sections, the first of which is an introduction to the historical context and background of the muon technique, which includes a basic introduction to the experimental method and underlying theoretical models. The second section is concerned with inorganic magnetic systems, starting with an overview of spin dynamics around critical points in ordered magnets. This is followed by an introduction to the early work on spin glasses, liquids and ices, which then continues onto the recent research in this area, including a discussion of some of the more controversial recent work on spin ices and magnetic monopoles. Information obtained by muons vital to two very important technological areas -magnetic semiconductors and next-generation energy materials -closes the discussion of inorganic magnetic materials. The final section is concerned with spin dynamics and magnetism in soft materials, and starts with discussing many of the key results in molecular magnets and organic spintronics. Spin dynamics in organic semiconductors, polymers and biological molecules is then covered, where contradictory experimental and theoretical work on charge carrier motion is presented. The similarities between the low-field relaxation rates in these "conducting" organic materials is compared to measurements of the electron spin relaxation measured in localised electronic states, obtained from high-field avoided level crossing spectroscopy in similar (and the same) materials.

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Section: Spin Glasses Liquids and Icesmentioning

confidence: 99%

Muon spin spectroscopy: magnetism, soft matter and the bridge between the two

Nuccio

Schulz

Drew

2014

J. Phys. D: Appl. Phys.

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Transverse spin freezing in a-FexZr100xstudied using muon spin relaxation

Ryan

Cadogan

Lierop

2000

Journal of Applied Physics

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Analysis of the muon spin relaxation (μSR) signal from a range of a-FexZr100−x alloys shows that the entire sample orders at Tc and that the volume fraction that could be associated with isolated nonmagnetic clusters is less than 3%. Furthermore, the coincidence between the static and dynamic μSR signatures of transverse spin freezing provides a clear confirmation of predictions from numerical models.

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