Magnetic properties, relaxation, and quantum tunneling i nanoparticles embedded in potassium silicate

X. Zhang; J. Hernandez; J. Tejada; R. Ziolo

doi:10.1103/PhysRevB.54.4101

Magnetic properties, relaxation, and quantum tunneling i nanoparticles embedded in potassium silicate

X. Zhang, J. Hernandez, J. Tejada, R. Ziolo

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

77 Scopus citations

Abstract

We report magnetic properties and magnetic relaxation phenomena in a sample comprised of nanocrystalline (Formula presented)(Formula presented) (∼97%)+γ-(Formula presented)(Formula presented) (∼3%) and polymer in potassium silicate (as magnetic glass) nanoparticle systems in which two very different barrier distributions contributed to the relaxation behavior. We have demonstrated experimentally that only energy barrier distributions and the thermal activation process could not account for a plateau in the viscosity data at low temperatures. Quantum tunneling of magnetization is suggested below ∼3 K.

Original language	English (US)
Pages (from-to)	4101-4106
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	54
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.54.4101
State	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.54.4101

Cite this

@article{6083bb5701674632a6858d0d80a6b173,

title = "Magnetic properties, relaxation, and quantum tunneling i nanoparticles embedded in potassium silicate",

abstract = "We report magnetic properties and magnetic relaxation phenomena in a sample comprised of nanocrystalline (Formula presented)(Formula presented) (∼97%)+γ-(Formula presented)(Formula presented) (∼3%) and polymer in potassium silicate (as magnetic glass) nanoparticle systems in which two very different barrier distributions contributed to the relaxation behavior. We have demonstrated experimentally that only energy barrier distributions and the thermal activation process could not account for a plateau in the viscosity data at low temperatures. Quantum tunneling of magnetization is suggested below ∼3 K.",

author = "X. Zhang and J. Hernandez and J. Tejada and R. Ziolo",

year = "1996",

doi = "10.1103/PhysRevB.54.4101",

language = "English (US)",

volume = "54",

pages = "4101--4106",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Magnetic properties, relaxation, and quantum tunneling i nanoparticles embedded in potassium silicate

AU - Zhang, X.

AU - Hernandez, J.

AU - Tejada, J.

AU - Ziolo, R.

PY - 1996

Y1 - 1996

N2 - We report magnetic properties and magnetic relaxation phenomena in a sample comprised of nanocrystalline (Formula presented)(Formula presented) (∼97%)+γ-(Formula presented)(Formula presented) (∼3%) and polymer in potassium silicate (as magnetic glass) nanoparticle systems in which two very different barrier distributions contributed to the relaxation behavior. We have demonstrated experimentally that only energy barrier distributions and the thermal activation process could not account for a plateau in the viscosity data at low temperatures. Quantum tunneling of magnetization is suggested below ∼3 K.

AB - We report magnetic properties and magnetic relaxation phenomena in a sample comprised of nanocrystalline (Formula presented)(Formula presented) (∼97%)+γ-(Formula presented)(Formula presented) (∼3%) and polymer in potassium silicate (as magnetic glass) nanoparticle systems in which two very different barrier distributions contributed to the relaxation behavior. We have demonstrated experimentally that only energy barrier distributions and the thermal activation process could not account for a plateau in the viscosity data at low temperatures. Quantum tunneling of magnetization is suggested below ∼3 K.

UR - http://www.scopus.com/inward/record.url?scp=0000083556&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.54.4101

DO - 10.1103/PhysRevB.54.4101

M3 - Article

AN - SCOPUS:0000083556

SN - 1098-0121

VL - 54

SP - 4101

EP - 4106

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 6

ER -

Magnetic properties, relaxation, and quantum tunneling i nanoparticles embedded in potassium silicate

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this