Article
Materials Science, Multidisciplinary
Jiaming Li, Enwei Sun, Yaping Ma, Huashan Zheng, Hua Zhao, Zhiguo Zhang
Summary: This study proposes a method to quantitatively characterize the phase transition processes of ferroelectric materials using fluorescence wavelength shift, demonstrating exact consistency between changes in fluorescence peak positions and structural phase transitions. The contactless, non-destructive fluorescence method provides localized quantitative analysis for phase transition processes in ferroelectric materials. The method based on fluorescence peak wavelength dependence on crystal environment may potentially be applied to characterize phase transitions in other ferroelectric materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Paul Loubeyre, Florent Occelli, Paul Dumas
Summary: This study investigates the influence of nuclear quantum fluctuations on the properties of dense hydrogen, focusing on its potential metallization. Raman spectroscopy and synchrotron infrared absorption measurements are conducted on deuterium at 460 GPa and 80 K, revealing the isotopic effects on the electronic and vibrational properties in phase III. The findings also suggest a probable transition to metal deuterium, occurring at a shifted pressure compared to hydrogen, and are compared to advanced calculations quantifying the reduction of the band gap caused by nuclear quantum fluctuations.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
David M. Jarvis, Matthew J. Coak, Hayrullo Hamidov, Charles R. S. Haines, Giulio I. Lampronti, Cheng Liu, Shiyu Deng, Dominik Daisenberger, David R. Allan, Mark R. Warren, Andrew R. Wildes, Siddharth S. Saxena
Summary: FePS3, a layered magnetic van der Waals compound, exhibits a Mott insulator-metal transition under applied pressure, accompanied by changes in crystal symmetry and magnetic structure. To understand these transitions, it is essential to study the crystal structure as a function of pressure. Through single-crystal and powder x-ray diffraction measurements, we have confirmed that the highest-pressure transition involves a collapse of interplanar spacing and an increase in symmetry from monoclinic to trigonal space group, supporting one model over competing alternatives. Our findings provide crucial insights into the high-pressure behavior of these materials and demonstrate a comprehensive methodology for investigating complex two-dimensional material structures under pressure.
Article
Multidisciplinary Sciences
Danae N. Polsin, Amy Lazicki, Xuchen Gong, Stephen J. Burns, Federica Coppari, Linda E. Hansen, Brian J. Henderson, Margaret F. Huff, Malcolm McMahon, Marius Millot, Reetam Paul, Raymond F. Smith, Jon H. Eggert, Gilbert W. Collins, J. Ryan Rygg
Summary: This study investigates the effects of extreme pressure on sodium and reveals the occurrence of temperature-driven polymorphism and the formation of an electride phase.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Jin-Gyu Bae, Ju-Hyeon Lee, Min Sung Kim, Byung Gon Kim, Hyeon Jeong Lee, Ji Hoon Lee
Summary: A molten salt synthesis method was used to produce sphere-like single-crystal magnesium-doped LiCoO2. The lattice strain was effectively alleviated, and the phase transition was suppressed by both the particle shape and Mg doping. The preference for Mg doping in the Co site rather than the Li site in the LCO framework was systematically revealed.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Rajamani Nagarajan, Promila Kumari
Summary: In this study, the transformation of ordered bixbyite structured Y2O3 to cation disordered fluorite structure was demonstrated by antimony substitution. The addition of 10 mol% antimony led to the observation of superstructure reflections of bixbyite, beyond which the structure transformed into a disordered fluorite structure. The use of Williamson-Hall analysis indicated compressive strain in antimony substituted samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Crystallography
Vinod Panchal, Laura Pampillo, Sergio Ferrari, Vitaliy Bilovol, Catalin Popescu, Daniel Errandonea
Summary: In this study, Co-doped SnO2 nanocrystals with a tetragonal rutile-type structure were subjected to high-pressure conditions up to 20.9 GPa. It was found that the Co-doped SnO2 undergoes a structural phase transition to an orthorhombic CaCl2-type phase at 14.2 GPa, with no phase coexistence. A discontinuous change in the unit-cell volume was observed during the phase transition, indicating a first-order type phase transition. Upon decompression, the transition was found to be reversible. The results were compared with previous studies on doped and un-doped SnO2, and the compressibility of different phases was discussed.
Article
Chemistry, Multidisciplinary
Seiya Shimono, Hiroki Ishibashi, Yusuke Nagayoshi, Hidekazu Ikeno, Shogo Kawaguchi, Masato Hagihala, Shuki Torii, Takashi Kamiyama, Katsuya Ichihashi, Sadafumi Nishihara, Katsuya Inoue, Yui Ishii, Yoshiki Kubota
Summary: A structural transition from a cubic phase to a tetragonal phase was observed in non-centrosymmetric oxyfluoride Co3Sb4O6F6 at around 180K. The transition was confirmed through specific heat, magnetization, and dielectric measurements, and a magnetic structure analysis revealed a transition from a paramagnetic phase to a G-type antiferromagnetic phase at around 67K.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Jianwei Zhao, Stephen D. Funni, Emily R. Molina, Elizabeth C. Dickey, Jacob L. Jones
Summary: Under the application of an external voltage, high electric field concentrations develop around the interdigitated electrode edges inside multilayer ceramic actuators (MLCAs). The local inhomogeneity in the electromechanical response is caused by the spatial distribution of the local electrical field. By utilizing synchrotron-based high-energy X-ray diffraction (XRD), the structural changes in partially electroded Nb-doped PbZrxTi1-xO3 samples as a function of applied electric field were investigated. The results show that the domain switching behavior and phase transitions are spatially dependent across the inactive regions in partially electroded samples, especially near the electrode edge and the tetragonal composition near the morphotropic phase boundary (MPB).
Article
Crystallography
Vinod Panchal, Catalin Popescu, Daniel Errandonea
Summary: The structural behavior of nanocrystalline alpha-CuMoO4 was studied using synchrotron X-ray powder diffraction up to 2 GPa at ambient temperature. It was found that the nanocrystalline alpha-CuMoO4 undergoes a structural phase transition to gamma-CuMoO4 at a pressure of 0.5 GPa. Both phases coexist until 1.2 GPa. The phase transition involves a change in copper coordination, with a 13% reduction in volume, indicating a first-order nature of the transition.
Article
Spectroscopy
Weihong Xue, Kuan Zhai, Hu Wang, Xiang Wu, Wen Wen, Shuangmeng Zhai
Summary: The Raman spectra and X-ray diffraction patterns of Mg2P2O7 polymorphs were investigated at different temperatures, revealing the temperature dependence of their Raman vibrations and force constant evolution. The study provides valuable data on the thermal properties of Mg2P2O7 polymorphs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Environmental Sciences
Dong Hyun Kim, Seung Jun Lee, Jayaraman Theerthagiri, Moonhee Choi, Jongsuk Jung, Yiseul Yu, Kwang Seop Im, Hyeon Jin Jung, Sang Yong Nam, Myong Yong Choi
Summary: This study investigated the phase transition and structural stability of tetragonal BaTiO3 nanopowders with pseudo-cubic phase using in-situ high resolution and high temperature X-ray diffraction method. The coexistence of tetragonal and cubic phases was detected, with complete transition to the cubic phase below 150 degrees C. The phase transformation behavior and structural changes were observed, providing insights into the properties of BaTiO3 nanopowders.
Review
Chemistry, Physical
J. Paul Attfield
Summary: Research on the Verwey transition in magnetite in recent years has shown that it involves not only electronic and structural transitions, but also phenomena such as Fe2+/Fe3+ charge ordering, Fe2+ orbital ordering, and trimeron formation. Additionally, new studies have revealed the effects of doping on the Verwey transition, as well as a new class of binary mixed-valent iron oxides discovered under high pressure conditions.
CHEMISTRY OF MATERIALS
(2022)
Article
Multidisciplinary Sciences
Ae Ran Lim
Summary: An in-depth study on the physicochemical properties of [NH3(CH2)(2)NH3](2)CdBr6, an organic-inorganic hybrid, was conducted to understand its crystal structure, phase transition, structural geometry, and molecular dynamics, which are essential for its application in batteries, supercapacitors, and fuel cells. The monoclinic crystal structure of [NH3(CH2)(2)NH3](2)CdBr6 was determined, and its thermal stability was confirmed up to 580 K. The NMR chemical shifts of H-1, C-13, N-14, and Cd-113 varied with temperature, indicating changes in the local field surroundings and surrounding environments of the cation and anion. The coordination geometry around Cd in the CdBr6 anion and the coordination environment around N in the cation were found to be associated with changes in the N-H center dot center dot center dot Br hydrogen bond, providing critical information about the mechanism of organic-inorganic hybrid compounds.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Ceramics
Junping Wang, Qingdong Chen, Ligang Chen, Yanjun Ji, Youwen Liu, Erjun Liang
Summary: A novel ZrxAl2-xMo3-xVxO12 material was prepared with low thermal expansion and broad-band luminescence, whose phase transition temperature could be tailored by changing the content of Zr4+ and V5+. Potential applications of this material can be found in LED and other optoelectronic devices.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Multidisciplinary
Yosuke Goto, Akira Miura, Chikako Moriyoshi, Yoshihiro Kuroiwa, Yoshikazu Mizuguchi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2019)
Article
Chemistry, Inorganic & Nuclear
Kenta Sudo, Yosuke Goto, Ryota Sogabe, Kazuhisa Hoshi, Akira Miura, Chikako Moriyoshi, Yoshihiro Kuroiwa, Yoshikazu Mizuguchi
INORGANIC CHEMISTRY
(2019)
Article
Physics, Applied
K. Terashima, Y. Yano, E. Paris, Y. Goto, Y. Mizuguchi, Y. Kamihara, T. Wakita, Y. Muraoka, N. L. Saini, T. Yokoya
JOURNAL OF APPLIED PHYSICS
(2019)
Article
Physics, Multidisciplinary
Yoshikazu Mizuguchi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2019)
Article
Physics, Applied
Hao Yuwen, Yosuke Goto, Rajveer Jha, Akira Miura, Chikako Moriyoshi, Yoshihiro Kuroiwa, Tatsuma D. Matsuda, Yuji Aoki, Yoshikazu Mizuguchi
JAPANESE JOURNAL OF APPLIED PHYSICS
(2019)
Article
Physics, Condensed Matter
G. M. Pugliese, F. Stramaglia, Y. Goto, K. Terashima, L. Simonelli, H. Fujiwara, A. Puri, C. Marini, M. Y. Hacisalihoglu, F. d'Acapito, T. Yokoya, T. Mizokawa, Y. Mizuguchi, N. L. Saini
JOURNAL OF PHYSICS-CONDENSED MATTER
(2019)
Article
Physics, Condensed Matter
Ryota Sogabe, Yosuke Goto, Tomohiro Abe, Chikako Moriyoshi, Yoshihiro Kuroiwa, Akira Miura, Kiyoharu Tadanaga, Yoshikazu Mizuguchi
SOLID STATE COMMUNICATIONS
(2019)
Article
Multidisciplinary Sciences
Rajveer Jha, Yosuke Goto, Tatsum D. Matsuda, Yuji Aoki, Masanori Nagao, Isao Tanaka, Yoshikazu Mizuguchi
SCIENTIFIC REPORTS
(2019)
Article
Physics, Applied
Md. Riad Kasem, Kazuhisa Hoshi, Rajveer Jha, Masayoshi Katsuno, Aichi Yamashita, Yosuke Goto, Tatsuma D. Matsuda, Yuji Aoki, Yoshikazu Mizuguchi
APPLIED PHYSICS EXPRESS
(2020)
Article
Physics, Multidisciplinary
Yoshikazu Mizuguchi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2019)
Article
Chemistry, Multidisciplinary
Masanori Nagao, Akira Miura, Daisuke Urushihara, Yuki Maruyama, Yosuke Goto, Yoshikazu Mizuguchi, Chikako Moriyoshi, Yoshihiro Kuroiwa, Yongming Wang, Satoshi Watauchi, Toru Asaka, Yoshihiko Takano, Kiyoharu Tadanaga, Isao Tanaka
FRONTIERS IN CHEMISTRY
(2020)
Article
Physics, Applied
Yuta Shukunami, Aichi Yamashita, Yosuke Goto, Yoshikazu Mizuguchi
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
(2020)
Article
Physics, Condensed Matter
Masayoshi Katsuno, Rajveer Jha, Kazuhisa Hoshi, Ryota Sogabe, Yosuke Goto, Yoshikazu Mizuguchi
Article
Materials Science, Multidisciplinary
Ryo Matsumoto, Yosuke Goto, Sayaka Yamamoto, Kenta Sudo, Hidetomo Usui, Akira Miura, Chikako Moriyoshi, Yoshihiro Kuroiwa, Shintaro Adachi, Tetsuo Irifune, Hiroyuki Takeya, Hiromi Tanaka, Kazuhiko Kuroki, Yoshikazu Mizuguchi, Yoshihiko Takano
Article
Chemistry, Inorganic & Nuclear
Hiroaki Ito, Akira Miura, Yosuke Goto, Yoshikazu Mizuguchi, Chikako Moriyoshi, Yoshihiro Kuroiwa, Masaki Azuma, Jinjia Liu, Xiao-Dong Wen, Shunta Nishioka, Kazuhiko Maeda, Yuji Masubuchi, Nataly Carolina Rosero-Navarro, Kiyoharu Tadanaga
DALTON TRANSACTIONS
(2019)
Article
Physics, Condensed Matter
Shivani Gohri, Jaya Madan, Rahul Pandey
Summary: This study improves the efficiency of SnS-based solar cells by implementing the glancing angle deposition approach and introducing a CZTSSe layer. The findings offer valuable insights for enhancing the design of SnS-based solar cells and making them more efficient.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Mahboubeh Yeganeh, Davoud Vahedi Fakhrabad
Summary: The lattice thermal conductivity of CdO monolayer was investigated, and it was found to be lower than that of bulk CdO due to the lower phonon lifetime and phonon group velocity. As a result, the monolayer exhibits higher thermoelectric efficiency compared to the bulk counterpart.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Shivam Srivastava, Prachi Singh, Anjani K. Pandey, Chandra K. Dixit
Summary: In this research paper, a novel equation of state (EOS) based on finite strain theories is proposed for predicting the thermo elastic properties of various materials. Extensive analysis and comparison with existing models and experimental data demonstrate the validity and effectiveness of the proposed EOS in capturing the unique thermodynamic behavior of nanomaterials, bulk metallic glasses, and superconductors. This research is of great importance in the fields of materials science, nanotechnology, and condensed matter physics.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Subrata Das, Sanjoy Kr Mahatha, Konstantin Glazyrin, R. Ganesan, Suja Elizabeth, Tirthankar Chakraborty
Summary: In this study, we investigated the structural evolution of Tb2Ti2O7 under external pressure and temperature, and confirmed the occurrence of an isostructural phase transition beyond 10 GPa pressure. This transition leads to changes in lattice parameters and mechanical properties, which can be understood in terms of localized rearrangement of atoms.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Hamze Mousavi
Summary: It has been found that undoped graphene sheet has zero states at the Fermi energy level, making it difficult for Cooper pairing to occur in the superconductive state. However, T-graphene, with physical properties similar to graphene, exhibits metallic behavior and has available electron states near the Fermi level. The gap equation for the s-wave superconductive state is derived based on the attractive Hubbard model and the Bogoliubov de Gennes equation for this two-dimensional metallic system. It is found that a nonzero critical temperature, τ, exists for different levels of electron-electron interaction, ǫ. τ has higher values when the system has electronic half band-filling, but decreases when the system does not have half band-filling. However, τ vanishes when ǫ becomes small enough near the band edges.
SOLID STATE COMMUNICATIONS
(2024)
