Excess spin and the dynamics of antiferromagnetic ferritin

J. G.E. Harris; J. E. Grimaldi; D. D. Awschalom; A. Chiolero; D. Loss

doi:10.1103/PhysRevB.60.3453

Excess spin and the dynamics of antiferromagnetic ferritin

J. G.E. Harris
, J. E. Grimaldi
, D. D. Awschalom
, A. Chiolero
, D. Loss

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

72 Scopus citations

Abstract

Temperature-dependent magnetization measurements on a series of synthetic ferritin proteins containing from 100 to 3000 Fe(III) ions are used to determine the uncompensated moment of these antiferromagnetic particles. The results are compared with recent theories of macroscopic quantum coherence which explicitly include the effect of this excess moment. The scaling of the excess moment with protein size is consistent with a simple model of finite-size effects and sublattice noncompensation.

Original language	English
Pages (from-to)	3453-3456
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	60
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.60.3453
State	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.60.3453

Cite this

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abstract = "Temperature-dependent magnetization measurements on a series of synthetic ferritin proteins containing from 100 to 3000 Fe(III) ions are used to determine the uncompensated moment of these antiferromagnetic particles. The results are compared with recent theories of macroscopic quantum coherence which explicitly include the effect of this excess moment. The scaling of the excess moment with protein size is consistent with a simple model of finite-size effects and sublattice noncompensation.",

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AU - Chiolero, A.

AU - Loss, D.

PY - 1999

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AB - Temperature-dependent magnetization measurements on a series of synthetic ferritin proteins containing from 100 to 3000 Fe(III) ions are used to determine the uncompensated moment of these antiferromagnetic particles. The results are compared with recent theories of macroscopic quantum coherence which explicitly include the effect of this excess moment. The scaling of the excess moment with protein size is consistent with a simple model of finite-size effects and sublattice noncompensation.

UR - https://www.scopus.com/pages/publications/0001252161

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JO - Physical Review B - Condensed Matter and Materials Physics

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Excess spin and the dynamics of antiferromagnetic ferritin

Abstract

ASJC Scopus subject areas

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