Quantum phase transition in itinerant-electron ferromagnet system U(Co1-xOsx)Al

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00494858" target="_blank" >RIV/68378271:_____/18:00494858 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.7566/JPSJ.87.094713" target="_blank" >http://dx.doi.org/10.7566/JPSJ.87.094713</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7566/JPSJ.87.094713" target="_blank" >10.7566/JPSJ.87.094713</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Quantum phase transition in itinerant-electron ferromagnet system U(Co1-xOsx)Al

Popis výsledku v původním jazyce

We report the magnetic phase diagram of an itinerant-electron ferromagnetic system, U(Co1-xOsx)Al, derived from the AC susceptibility and DC magnetization. The quantum phase transition point at which the ferromagnetic transition temperature becomes 0 K is estimated to be located at x = 0.004. The tricritical point is also estimated to be located at x = 0.0065, T = 11 K. We also observed a non-Fermi liquid behavior near the quantum phase transition point: the electrical resistivity in the paramagnetic region is proportional to T3/2 rather than to T5/3 that is predicted at the quantum critical point. The T3/2 dependence is observed in some other itinerant-electron magnets. We discuss the possible mechanisms applied to these compounds.n

Název v anglickém jazyce

Quantum phase transition in itinerant-electron ferromagnet system U(Co1-xOsx)Al

Popis výsledku anglicky

We report the magnetic phase diagram of an itinerant-electron ferromagnetic system, U(Co1-xOsx)Al, derived from the AC susceptibility and DC magnetization. The quantum phase transition point at which the ferromagnetic transition temperature becomes 0 K is estimated to be located at x = 0.004. The tricritical point is also estimated to be located at x = 0.0065, T = 11 K. We also observed a non-Fermi liquid behavior near the quantum phase transition point: the electrical resistivity in the paramagnetic region is proportional to T3/2 rather than to T5/3 that is predicted at the quantum critical point. The T3/2 dependence is observed in some other itinerant-electron magnets. We discuss the possible mechanisms applied to these compounds.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of the Physical Society of Japan

ISSN

0031-9015

e-ISSN

—

Svazek periodika

87

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000443506500031

EID výsledku v databázi Scopus

2-s2.0-85053702046