Results 71 to 80 of about 637,903 (236)

Displacive In‐Plane Ferroelectricity with Domain‐Specific Curie Temperature in Van der Waals Semiconductors

Advanced Science, EarlyView.
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 ...
Peter Sutter, Eli Sutter
wiley   +1 more source

Tunable Negative Thermal Expansion in Fe/Cr‐Substituted Nd2Co17 Compounds via Magnetoelastic Coupling

Advanced Science, EarlyView.
This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li, Chenfei Qv, Haoran Tu, Qinfen Gu, Wayne D. Hutchison, Stewart J. Campbell, Zhenxiang Cheng, Wenquan Wang, Jianli Wang   +8 more
wiley   +1 more source

Synchrotron X-ray powder diffraction study of the tetragonal-cubic phase transition in nanostructured ZrO2-Sc2O3 solid solutions

, 2008
The transition between tetragonal and cubic phases in nanostructured ZrO2-Sc2O3 solid solutions by high-temperature X-ray powder diffraction using synchrotron radiation is presented.
RECA, Noemi E. Walsoee de, Craievich, Aldo Felix, RAPP, Maria E. Fernandez de, ABDALA, Paula M., LAMAS, Diego G., Fantini, Marcia Carvalho de Abreu   +5 more
core   +1 more source

Nanocrystalline materials studied by powder diffraction line profile analysis [PDF]

, 2007
X-ray powder diffraction is a powerful tool for characterising the microstructure of crystalline materials in terms of size and strain. It is widely applied for nanocrystalline materials, especially since other methods, in particular electron microscopy ...
Gubicza, Jenő, Ungár, Tamás
core   +1 more source

New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3

Advanced Science, EarlyView.
ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu, Yu‐Hsin Liao, Chih‐Chung Tsai, Pei‐Ying Yang, Yu‐Hao Chang, Yu‐Hui Liang, D. Chandrasekhar Kakarla, Ajay Tiwari, C. Dhanasekhar, Chin‐Wei Wang, Daisuke Okuyama, Chia‐Nung Kuo, Chin‐Shan Lue, Tzu‐Hsuan Weng, Kung‐Hsuan Lin, Jau‐Wern Chiou, Chi‐Hung Lee, Hung‐Duen Yang   +17 more
wiley   +1 more source

High-pressure neutron diffraction at ultra-low temperature

Physical Review Research
Neutron diffraction is a powerful tool in the study of quantum materials and associated emergent phenomena as it allows for direct detection of magnetic structure even at ultra-low temperatures.
Y. Wu, T. E. Sherline, J. J. Molaison, A. M. dos Santos, H. D. Zhou, H. B. Cao, J. J. Pierce, B. Haberl   +7 more
doaj   +1 more source

New single-toroidal sintered diamond anvil and assembly for high pressure neutron diffraction

Nuclear Analysis
In-situ high pressure neutron diffraction experiments, which require a large volume samples, remain challenging, particularly when generating simultaneous high pressure-temperature (P-T) conditions.
Leiming Fang, Gongzhang Yang, Guoliang Niu, Ruiqi He, Jiacheng Sun, Xiping Chen, Lei Xie   +6 more
doaj   +1 more source

La diferencia de masa neutrón-protón [PDF]

, 2010
Capítulo I: introducción Capítulo II: el problema de la diferencia de masa neutrón-protón: reseña histórica Capítulo III: modelos efectivos de hadrones Capítulo IV: violación de Isospin en el modelo de Skyrme Capítulo V: el papel de los mesones ...
Méndez Galain, Ramón
core  

The Wiener-Hopf solution of the isotropic penetrable wedge problem: diffraction and total field [PDF]

, 2011
The diffraction of an incident plane wave by an isotropic penetrable wedge is studied using generalized Wiener-Hopf equations, and the solution is obtained using analytical and numerical-analytical approaches that reduce the Wiener-Hopf factorization to ...
Vito Daniele, Guido Lombardi, Lombardi, Guido, Daniele, Vito   +3 more
core   +1 more source

Engineering of Crystal and Domain Structures in Epitaxial Y:HfO2 Thin Films by YSZ Substrate Miscut

Advanced Science, EarlyView.
We investigate how YSZ substrate miscut influences crystal structure and domain formation in epitaxial Y‐doped HfO2 thin films. Using magnetron sputtering, high‐resolution X‐ray diffraction, atomic‐resolution scanning transmission electron microscopy, and first‐principles calculations, we systematically examine the characteristics of thickness‐ and ...
Jun Young Lee, Hyung‐Jin Choi, Kun Hee Ye, Haneul Choi, Byeong‐hyeon Lee, Min‐Seok Kim, Dong‐Hun Han, June Hyuk Lee, Sung Ok Won, Tae Heon Kim, Hye Jung Chang, Jung‐Hae Choi, Seung‐Hyub Baek   +12 more
wiley   +1 more source