Evidence for spin-glass ground state in fluorite-defect Er2Zr2O7 single crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00518981" target="_blank" >RIV/68378271:_____/19:00518981 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/19:10401662

Výsledek na webu

<a href="https://doi.org/10.1103/physrevb.100.214405" target="_blank" >https://doi.org/10.1103/physrevb.100.214405</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.100.214405" target="_blank" >10.1103/PhysRevB.100.214405</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evidence for spin-glass ground state in fluorite-defect Er2Zr2O7 single crystals

Popis výsledku v původním jazyce

We present the preparation and characterization of an Er2Zr2O7 single crystal. The material was studied by means of x-ray and neutron diffraction, magnetization, AC susceptibility, and specific heat measurements. The defect-fluorite type of cubic structure, previously reported as the crystal structure of Er2Zr2O7, is consistent with our x-ray powder diffraction data. The measurements of physical properties were performed in magnetic field applied along principal crystallographic directions. A negligible directional dependence of physical properties is observed at temperatures down to 3 K, and only minor differences can be traced at lower temperatures. A low-temperature anomaly in magnetization and specific heat data and its evolution with applied magnetic field is followed. A frequency-dependent shift of freezing temperature was observed in AC susceptibility. Several origins of the observed anomaly are discussed, leaving a spin-glass state as the most probable explanation.

Název v anglickém jazyce

Evidence for spin-glass ground state in fluorite-defect Er2Zr2O7 single crystals

Popis výsledku anglicky

We present the preparation and characterization of an Er2Zr2O7 single crystal. The material was studied by means of x-ray and neutron diffraction, magnetization, AC susceptibility, and specific heat measurements. The defect-fluorite type of cubic structure, previously reported as the crystal structure of Er2Zr2O7, is consistent with our x-ray powder diffraction data. The measurements of physical properties were performed in magnetic field applied along principal crystallographic directions. A negligible directional dependence of physical properties is observed at temperatures down to 3 K, and only minor differences can be traced at lower temperatures. A low-temperature anomaly in magnetization and specific heat data and its evolution with applied magnetic field is followed. A frequency-dependent shift of freezing temperature was observed in AC susceptibility. Several origins of the observed anomaly are discussed, leaving a spin-glass state as the most probable explanation.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2019

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

100

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

000499970900005

EID výsledku v databázi Scopus

2-s2.0-85076540021