Dynamic relaxations and relaxation-property relationships in metallic glasses

WH Wang - Progress in Materials Science, 2019 - Elsevier
Dynamic relaxation is an intrinsic and universal feature of glasses and enables fluctuation
and dissipation to occur, which induces plentiful behaviour, maintains equilibrium, and …

Colossal low-temperature upturn in the heat capacity of volcanic glasses

D Szewczyk, M Cassetta - Journal of Non-Crystalline Solids, 2024 - Elsevier
Here we explore the low-temperature heat capacity (C p) of two natural endmember volcanic
glasses, unveiling an unprecedented anomalous upturn in C p/T³ versus temperature (T) …

Unveiling the Boson Peaks in Amorphous Phase-Change Materials

J Moesgaard, T Fujita, S Wei - arXiv preprint arXiv:2404.17226, 2024 - arxiv.org
The Boson peak is a universal phenomenon in amorphous solids. It can be observed as an
anomalous contribution to the low-temperature heat capacity over the Debye model …

Time resolved thermal lens measurements of the thermo-optical properties of Nd2O3-doped low silica calcium aluminosilicate glasses down to 4.3 K

NGC Astrath, AN Medina, AC Bento, C Jacinto… - Journal of non …, 2008 - Elsevier
In this work, the thermal lens spectrometry was applied to measure the thermo-optical
properties of Nd2O3-doped low silica calcium aluminosilicate glasses as a function of …

Nonlocal effects on the thermal behavior of non-crystalline solids

EK Lenzi, NGC Astrath, R Rossato… - Brazilian Journal of …, 2009 - SciELO Brasil
We argue that nonlocal effects represented by fractionary terms in the kinetic energy can be
relevant to achieve a satisfactory phenomenological description of the thermal behavior of …

[图书][B] LOW-ENERGY EXCITATIONS IN DISORDERED SOLIDS: A Story of the 'Universal'Phenomena of Structural Tunneling

RB Stephens, X Liu - 2021 - World Scientific
Why should one care about a bit of rattling in disordered materials? On the face of it, the
states addressed in this monograph only amount to a few 10s ppm of the total number of …

Low frequency Raman study of the Boson peak in a Tellurite-tungstate glass over temperature

MP Belançon, G Simon - Journal of Non-Crystalline Solids, 2018 - Elsevier
In this work we present our findings performing low frequency Raman measurements over
temperature in a tellurite-tungstate glass sample. The spectra could be fitted by using only …

Titanium-Based Bulk Metallic Glasses: Glass Forming Ability and Mechanical Behavior

J Mei - 2009 - theses.hal.science
Two Ti-based bulk metallic glasses, with the nominal composition of Ti40Zr25Ni8Cu9Be18
and Ti41. 5Cu37. 5Ni7. 5Zr2. 5Hf5Sn5Si1, who exhibit different structural nature (quenched …

Low-frequency inelastic light scattering in a ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF) glass

SV Adichtchev, VK Malinovsky, LN Ignatieva… - The Journal of …, 2014 - pubs.aip.org
Low-frequency (down to 30 GHz) inelastic light scattering is studied in a multicomponent
glass ZBLAN (ZrF 4-BaF 2-LaF 3-AlF 3-NaF) in a wide temperature range. The contributions …

Semiclassical approximation for the specific heat of non-crystalline solids at intermediate temperatures

NGC Astrath, AC Bento, ML Baesso… - Philosophical …, 2007 - Taylor & Francis
The origin of the broad maximum in the specific heat (c P) of glassy systems in the c P/T 3
representation, in correspondence with the boson peak, has been described from a …