Magnetic and electronic properties of NpCo2: Evidence for long-range magnetic order

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10190726" target="_blank" >RIV/00216208:11320/13:10190726 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/13:00421652

Výsledek na webu

<a href="http://prb.aps.org/pdf/PRB/v87/i13/e134410" target="_blank" >http://prb.aps.org/pdf/PRB/v87/i13/e134410</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.87.134410" target="_blank" >10.1103/PhysRevB.87.134410</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic and electronic properties of NpCo2: Evidence for long-range magnetic order

Popis výsledku v původním jazyce

The magnetic and electronic properties of the cubic Laves phase intermetallic compound NpCo2 have been investigated by magnetization, specific heat, and electrical resistivity measurements. Magnetization data confirm previous results, i.e., an antiferromagneticlike order at 12.5 K and a metamagnetic transition at B-m similar to 4.3 T at 3 K with a saturation moment of similar to 0.6 mu B. Although extensive neutron diffraction studies failed to establish the nature of the antiferromagnetic order, its occurrence is confirmed by specific heat measurements that also highlight the presence of magnetic fluctuations suppressed by the application of an external field larger than B-m. The observed high value of the electronic specific heat, gamma(0) similar to330 mJ/molK(2) as T -> 0, and the minute magnetic entropy, <0.1Rln2, classify NpCo2 as an itinerant, moderately-heavy-fermion antiferromagnet. The electrical resistivity data agree with the presence of an antiferromagnetic order below B-

Název v anglickém jazyce

Magnetic and electronic properties of NpCo2: Evidence for long-range magnetic order

Popis výsledku anglicky

The magnetic and electronic properties of the cubic Laves phase intermetallic compound NpCo2 have been investigated by magnetization, specific heat, and electrical resistivity measurements. Magnetization data confirm previous results, i.e., an antiferromagneticlike order at 12.5 K and a metamagnetic transition at B-m similar to 4.3 T at 3 K with a saturation moment of similar to 0.6 mu B. Although extensive neutron diffraction studies failed to establish the nature of the antiferromagnetic order, its occurrence is confirmed by specific heat measurements that also highlight the presence of magnetic fluctuations suppressed by the application of an external field larger than B-m. The observed high value of the electronic specific heat, gamma(0) similar to330 mJ/molK(2) as T -> 0, and the minute magnetic entropy, <0.1Rln2, classify NpCo2 as an itinerant, moderately-heavy-fermion antiferromagnet. The electrical resistivity data agree with the presence of an antiferromagnetic order below B-

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Physical Review B - Condensed Matter and Materials Physics

ISSN

1098-0121

e-ISSN

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Svazek periodika

87

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000317390000004

EID výsledku v databázi Scopus

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