Electronic structure of UN based on specific heat and field-induced transitions up to 65 T

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00469481" target="_blank" >RIV/68378271:_____/16:00469481 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.94.224415" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.94.224415</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.94.224415" target="_blank" >10.1103/PhysRevB.94.224415</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electronic structure of UN based on specific heat and field-induced transitions up to 65 T

Popis výsledku v původním jazyce

We studied specific heat and magnetization (up to 65 T) of single-crystalline UN. Analysis of the magnetic contribution to the specific heat of UN revealed that its real ground state is complex, the 5f electrons possess simultaneously local and itinerant characters. High-field experiments allowed us to construct a magnetic phase diagram of UN with a metamagnetic transition from antiferromagnetism to ferrimagnetism at high magnetic field up to 58 T at 2 K. Such a field only enables a reversing of one of the twelve antiferromagnetically coupled ferromagnetic layers into the direction of the field. The magnetic phase diagram can be successfully reproduced considering a layer model of the Ising spins. That model allows to estimate roughly a phase transition into fully induced ferromagnetism at about 258 T. It gives rise to a giant coupling between ferromagnetically ordered layers in UN.

Název v anglickém jazyce

Electronic structure of UN based on specific heat and field-induced transitions up to 65 T

Popis výsledku anglicky

We studied specific heat and magnetization (up to 65 T) of single-crystalline UN. Analysis of the magnetic contribution to the specific heat of UN revealed that its real ground state is complex, the 5f electrons possess simultaneously local and itinerant characters. High-field experiments allowed us to construct a magnetic phase diagram of UN with a metamagnetic transition from antiferromagnetism to ferrimagnetism at high magnetic field up to 58 T at 2 K. Such a field only enables a reversing of one of the twelve antiferromagnetically coupled ferromagnetic layers into the direction of the field. The magnetic phase diagram can be successfully reproduced considering a layer model of the Ising spins. That model allows to estimate roughly a phase transition into fully induced ferromagnetism at about 258 T. It gives rise to a giant coupling between ferromagnetically ordered layers in UN.

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

<a href="/cs/project/GA16-03593S" target="_blank" >GA16-03593S: Magnetismus f-elektronových intermetalik</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

—

Svazek periodika

94

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

000390251300004

EID výsledku v databázi Scopus

2-s2.0-85006256361