Magnetic properties of carbon nanodisk and nanocone powders

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F13%3A00213891" target="_blank" >RIV/68407700:21340/13:00213891 - isvavai.cz</a>

Result on the web

<a href="http://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.014434" target="_blank" >http://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.014434</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.87.014434" target="_blank" >10.1103/PhysRevB.87.014434</a>

Result language

angličtina

Original language name

Magnetic properties of carbon nanodisk and nanocone powders

Original language description

We have investigated the magnetic properties of carbon powders which consist of nanodisks, nanocones, and a small fraction of carbon-black particles. Magnetization measurements were carried out using a superconducting quantum interference device in magnetic fields -5 < mu H-0 < 5 T for temperatures in the range 2 <= T < 350 K. Measurements of the magnetization M versus temperature T and magnetic field mu H-0 for these carbon samples show diamagnetism and paramagetism with an additional ferromagnetic contribution. The ferromagnetic magnetization is in agreement with the calculated magnetization from Fe impurities as determined by the particle-induced x-ray emission method (<75 mu g/g). Magnetization measurements in weak magnetic fields show thermal hysteresis, and for strong fields the magnetization M decreases as M similar to aT(-alpha) with alpha < 1, which is slower than the Curie law (alpha = 1), when the temperature increases. The magnetization M versus magnetic field mu H-0 shows

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review B

ISSN

0163-1829

e-ISSN

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Volume of the periodical

2013

Issue of the periodical within the volume

87

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

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UT code for WoS article

000314223900001

EID of the result in the Scopus database

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