Thermodynamic properties of the phosphate glass Dy(PO3)3 – Potential influence of boson peak on spin relaxation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43934013" target="_blank" >RIV/60461373:22310/23:43934013 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/23:39920491

Výsledek na webu

<a href="https://doi.org/10.1016/j.jmmm.2023.171415" target="_blank" >https://doi.org/10.1016/j.jmmm.2023.171415</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmmm.2023.171415" target="_blank" >10.1016/j.jmmm.2023.171415</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermodynamic properties of the phosphate glass Dy(PO3)3 – Potential influence of boson peak on spin relaxation

Popis výsledku v původním jazyce

An experimental study was conducted to investigate the magnetic properties of dysprosium-doped phosphate glasses. Low-temperature (LT) measurements of the specific heat of Dy(PO3)3 were performed in the range of 0.38–300 K in the magnetic fields up to 9 T. The LT specific heat of amorphous materials is characterized by the presence of a broad maximum named boson peak (BP). The LT specific heat of the Dy-doped sample is dominated by the magnetic contribution, which overlaps the BP. Due to that reason, the specific heat of Y(PO3)3 nonmagnetic glasses was also measured at the same temperature range, revealing the BP at 12–14 K. The magnetic susceptibility was measured from 1.8 K up to room temperature, yielding the effective magnetic moment of 10.65 μB, which is close to the theoretical prediction for Dy3+. Magnetization curves were measured up to B = 5 T with temperatures ranging from 2 to 50 K. X-band electron-paramagnetic resonance spectra were measured from 0 to 1 T, revealing a maximum at 100 mT. The line achieves maximal intensity at temperatures around 12–14 K, which coincides with the appearance of BP in specific heat. The coincidence suggests the presence of the magnetoelastic coupling between the ground quasi-doublet and boson peak. © 2023

Název v anglickém jazyce

Thermodynamic properties of the phosphate glass Dy(PO3)3 – Potential influence of boson peak on spin relaxation

Popis výsledku anglicky

An experimental study was conducted to investigate the magnetic properties of dysprosium-doped phosphate glasses. Low-temperature (LT) measurements of the specific heat of Dy(PO3)3 were performed in the range of 0.38–300 K in the magnetic fields up to 9 T. The LT specific heat of amorphous materials is characterized by the presence of a broad maximum named boson peak (BP). The LT specific heat of the Dy-doped sample is dominated by the magnetic contribution, which overlaps the BP. Due to that reason, the specific heat of Y(PO3)3 nonmagnetic glasses was also measured at the same temperature range, revealing the BP at 12–14 K. The magnetic susceptibility was measured from 1.8 K up to room temperature, yielding the effective magnetic moment of 10.65 μB, which is close to the theoretical prediction for Dy3+. Magnetization curves were measured up to B = 5 T with temperatures ranging from 2 to 50 K. X-band electron-paramagnetic resonance spectra were measured from 0 to 1 T, revealing a maximum at 100 mT. The line achieves maximal intensity at temperatures around 12–14 K, which coincides with the appearance of BP in specific heat. The coincidence suggests the presence of the magnetoelastic coupling between the ground quasi-doublet and boson peak. © 2023

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/GA21-02550S" target="_blank" >GA21-02550S: Plazmonem indukované zachycení excitovaného spinového stavu v komplexech se spinovým krosoverem</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

ISSN

0304-8853

e-ISSN

—

Svazek periodika

588

Číslo periodika v rámci svazku

DEC 15 2023

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

"171415/1"-5

Kód UT WoS článku

001108690900001

EID výsledku v databázi Scopus

2-s2.0-85175457101