Magnetic relaxation and quantum tunneling in nanocrystalline particles

Xixiang Zhang; R. Ziolo; E. C. Kroll; X. Bohigas; J. Tejada

doi:10.1016/0304-8853(94)00536-2

Magnetic relaxation and quantum tunneling in nanocrystalline particles

Xixiang Zhang^*, R. Ziolo, E. C. Kroll, X. Bohigas, J. Tejada

^*Corresponding author for this work

Physical Sciences and Engineering

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

16 Scopus citations

Abstract

Low-temperature magnetic relaxation phenomena have been studied in two samples consisting of nanocrystalline γ-Fe ₂ O ₃ and polymer in either water (as ferrofluid) or in potassium silicate (as glass). The relaxation of the magnetization follows a logarithmic law and the magnetic viscosity, S, tends to be independent of temperature below 2.1 K for the glass sample, giving evidence of macroscopic quantum tunneling of the magnetization.

Original language	English (US)
Pages (from-to)	1853-1854
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	140-144
Issue number	PART 3
DOIs	https://doi.org/10.1016/0304-8853(94)00536-2
State	Published - Jan 1 1995

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/0304-8853(94)00536-2

Cite this

@article{274350cce188435ca673cc57cbff906b,

title = "Magnetic relaxation and quantum tunneling in nanocrystalline particles",

abstract = " Low-temperature magnetic relaxation phenomena have been studied in two samples consisting of nanocrystalline γ-Fe 2 O 3 and polymer in either water (as ferrofluid) or in potassium silicate (as glass). The relaxation of the magnetization follows a logarithmic law and the magnetic viscosity, S, tends to be independent of temperature below 2.1 K for the glass sample, giving evidence of macroscopic quantum tunneling of the magnetization.",

author = "Xixiang Zhang and R. Ziolo and Kroll, {E. C.} and X. Bohigas and J. Tejada",

year = "1995",

month = jan,

day = "1",

doi = "10.1016/0304-8853(94)00536-2",

language = "English (US)",

volume = "140-144",

pages = "1853--1854",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "PART 3",

}

TY - JOUR

T1 - Magnetic relaxation and quantum tunneling in nanocrystalline particles

AU - Zhang, Xixiang

AU - Ziolo, R.

AU - Kroll, E. C.

AU - Bohigas, X.

AU - Tejada, J.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - Low-temperature magnetic relaxation phenomena have been studied in two samples consisting of nanocrystalline γ-Fe 2 O 3 and polymer in either water (as ferrofluid) or in potassium silicate (as glass). The relaxation of the magnetization follows a logarithmic law and the magnetic viscosity, S, tends to be independent of temperature below 2.1 K for the glass sample, giving evidence of macroscopic quantum tunneling of the magnetization.

AB - Low-temperature magnetic relaxation phenomena have been studied in two samples consisting of nanocrystalline γ-Fe 2 O 3 and polymer in either water (as ferrofluid) or in potassium silicate (as glass). The relaxation of the magnetization follows a logarithmic law and the magnetic viscosity, S, tends to be independent of temperature below 2.1 K for the glass sample, giving evidence of macroscopic quantum tunneling of the magnetization.

UR - http://www.scopus.com/inward/record.url?scp=0029244926&partnerID=8YFLogxK

U2 - 10.1016/0304-8853(94)00536-2

DO - 10.1016/0304-8853(94)00536-2

M3 - Article

AN - SCOPUS:0029244926

SN - 0304-8853

VL - 140-144

SP - 1853

EP - 1854

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - PART 3

ER -

Magnetic relaxation and quantum tunneling in nanocrystalline particles

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this