Results 21 to 30 of about 4,203,439 (304)

Displacive In-Plane Ferroelectricity with Domain-Specific Curie Temperature in Van der Waals Semiconductors. [PDF]

Adv Sci (Weinh)
Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Sutter P, Sutter E.
europepmc   +2 more sources

Improvement of the Self-Controlled Hyperthermia Applications by Varying Gadolinium Doping in Lanthanum Strontium Manganite Nanoparticles

Molecules, 2023
In this study, silica-encapsulated gadolinium was doped in lanthanum strontium manganite nanoparticles (NPs) with different concentrations using the citrate–gel auto-combustion method. We focused on tuning the Curie temperature and enhancing the specific
Ashfaq Ahmad, Hassan Akbar, Imran Zada, Faiza Anjum, Amir Muhammad Afzal, Subhan Javed, Muhammad Muneeb, Asghar Ali, Jeong Ryeol Choi   +8 more
doaj   +1 more source

Curie and Néel temperatures of quantum magnets [PDF]

Journal of Physics: Condensed Matter, 2004
We estimate, using high-temperature series expansions, the transition temperatures of the spin 1/2, 1 and 3/2 Heisenberg ferromagnet and antiferromagnet in 3-dimensions. The manner in which the difference between Curie and Neel temperatures vanishes with increasing spin quantum number is investigated.
Oitmaa, J., Zheng, Weihong
openaire   +2 more sources

Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures

Physical Review X, 2014
We report temperature-dependent measurements of longitudinal spin Seebeck effects (LSSEs) in Pt/Y_{3}Fe_{5}O_{12} (YIG)/Pt systems in a high temperature range from room temperature to above the Curie temperature of YIG. The experimental results show that
Ken-ichi Uchida, Takashi Kikkawa, Asuka Miura, Junichiro Shiomi, Eiji Saitoh   +4 more
doaj   +1 more source

First-order phase transition and unexpected rigid rotation mode in hybrid improper ferroelectric (La, Al) co-substituted Ca3Ti2O7 ceramics

Journal of Materiomics, 2019
Ca3Ti2O7 with Ruddlesden-Popper structure exhibits the largest polarization among the known hybrid improper ferroelectrics. However, the high Curie temperature impedes the thorough study of phase transition through dielectric characterization.
Z.Z. Hu, J.J. Lu, B.H. Chen, T.T. Gao, X.Q. Liu, W. Wen, X.M. Chen   +6 more
doaj   +1 more source

Quenching of the Eu³⁺ Luminescence by Cu²⁺ Ions in the Nanosized Hydroxyapatite Designed for Future Bio-Detection

Nanomaterials, 2021
The hydroxyapatite nanopowders of the Eu3+-doped, Cu2+-doped, and Eu3+/Cu2+-co-doped Ca10(PO4)6(OH)2 were prepared by a microwave-assisted hydrothermal method.
Katarzyna Szyszka, Sara Targońska, Agnieszka Lewińska, Adam Watras, Rafal J. Wiglusz   +4 more
doaj   +1 more source

Ferromagnetism above 1000 K in a highly cation-ordered double-perovskite insulator Sr3OsO6

Nature Communications, 2019
Pursuing high Curie temperature magnetic insulators has been one of the extensively studied subjects due to their wide appeal for spintronic applications.
Yuki K. Wakabayashi, Yoshiharu Krockenberger, Naoto Tsujimoto, Tommy Boykin, Shinji Tsuneyuki, Yoshitaka Taniyasu, Hideki Yamamoto   +6 more
doaj   +1 more source

On the deviation from a Curie–Weiss behavior of the ZnFe2O4 susceptibility: A combined ab-initio and Monte-Carlo approach

Heliyon, 2019
We present a numerical study of the magnetic properties of ZnFe2O4 using Monte-Carlo simulations performed considering a Heisenberg model with antiferromagnetic couplings determined by Density Functional Theory. Our calculations predict that the magnetic
J. Melo Quintero, K.L. Salcedo Rodríguez, F.A. Gómez Albarracín, H.D. Rosales, P. Mendoza Zélis, S.J. Stewart, L.A. Errico, C. Rodríguez Torres   +7 more
doaj   +1 more source

Curie temperature rising by fluorination for Sm2Fe17

AIP Advances, 2013
Fluorine atoms can be introduced to Sm2Fe17 using XeF2 below 423 K.
Matahiro Komuro, Yuichi Satsu, Kazuya Nishi, Takayuki Kanda   +3 more
doaj   +1 more source

Scientific Trip to Lviv as a Form of Educating Archivists at the Maria Curie-Skłodowska University [PDF]

, 2023
Archival studies programs include periodic study visits in the modern archives. So far, no thorough publications were devoted to them, which is why this text was written.
Łosowski, Janusz, Janusz Łosowski
core   +2 more sources