scholarly journals Topological vacancies in spherical crystals

Soft Matter ◽  
2017 ◽  
Vol 13 (35) ◽  
pp. 5905-5910 ◽  
Author(s):  
Zhenwei Yao

Understanding geometric frustration of ordered phases in two-dimensional condensed matter on curved surfaces is closely related to a host of scientific problems in condensed matter physics and materials science.

2014 ◽  
Vol 2 (24) ◽  
pp. 4710-4726 ◽  
Author(s):  
Shuang Tang ◽  
Mildred S. Dresselhaus

Bismuth antimony (Bi1−xSbx) is one of the most important materials systems for fundamental materials science, condensed matter physics, low temperature thermoelectrics, infrared applications, and beyond.


RSC Advances ◽  
2016 ◽  
Vol 6 (89) ◽  
pp. 86089-86094 ◽  
Author(s):  
Min Yuan ◽  
Wei-xiao Ji ◽  
Miao-juan Ren ◽  
Ya-ping Wang ◽  
Hui Zhao

Searching for two-dimensional (2D) quantum spin Hall (QSH) insulators with a large band gap, in which the Quantum spin Hall effect (QSHE) can be observed at high temperature, is an important goal for condensed matter physics researchers.


Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Carlo Grazianetti ◽  
Alessandro Molle

Two-dimensional materials are today a solid reality in condensed matter physics due to the disruptive discoveries about graphene. The class of the X-enes, namely, graphene-like single element artificial crystals, is quickly emerging driven by the high-momentum generated by silicene. Silicene, in addition to the graphene properties, shows up incidentally at the end of Moore’s law debate in the electronic era. Indeed, silicene occurs as the crafted shrunk version of silicon long yearned by device manufacturers to improve the performances of their chips. Despite the periodic table kinship with graphene, silicene and the X-enes must deal with the twofold problem of their metastable nature, i.e., the stabilization on a substrate and out of vacuum environment. Synthesis on different substrates and deep characterization through electronic and optical techniques of silicene in the early days have been now following by the tentative steps towards reliable integration of silicene into devices. Here, we review three paradigmatic cases of silicene grown by molecular beam epitaxy showing three different possible applications, aiming at extending the exploitation of silicene out of the nanoelectronics field and thus keeping silicon a key player in nanotechnology, just in a thinner fashion.


2021 ◽  
Vol 30 (9) ◽  
pp. 8-10
Author(s):  
Sang-Don BU ◽  
Ill Won KIM

Research Center for Dielectric Study was supported by the Korean Research Foundation from the government. In 1991, Professor Jang, Min-Soo along with 22 other professors, received a research grant of 7 billion won for 10 years, which enabled the Korean Ferroelectric Research Society to be competitive globally. The 9th International Meeting on Ferroelectricity, which is held every four years, was held in Seoul in 1997. The first dielectric joint symposium organized by condensed-matter physics and materials science researchers was held in 2005. The Korean Dielectrics Society was established at Muju resort in 2017, with Professors Tae Won Noh and Jaichan Lee representing the condensed-matter physics and materials science communities, respectively. Currently, more than 300 members are actively participating in the Korean Dielectric Society. To celebrate the 100th anniversary of ferroelectricity, which was fist discovered in Rochelle salt by Joseph Valasek in 1921, we organized a special session in the 2020 Korean Physics Society Fall Meeting.


2020 ◽  
Vol 117 (42) ◽  
pp. 26141-26144
Author(s):  
Tin-Lun Ho

It has been a long-sought goal of quantum simulation to find answers to outstanding questions in condensed-matter physics. A famous example is finding the ground state and the excitations of the two-dimensional (2D) Hubbard model with strong repulsion below half-filling. This system is a doped antiferromagnet and is of great interest because of its possible relation to high-Tcsuperconductors. Theoretically, the fermion excitations of this model are believed to split up into holons and spinons, and a moving holon is believed to leave behind it a string of “wrong” spins that mismatch with the antiferromagnetic background. Here, we show that the properties of the ground-state wavefunction and the holon excitation of the 2D Hubbard model can be revealed in unprecedented detail by using the imaging and the interference technique in atomic physics. They allow one to reveal the Marshall sign of the doped antiferromagnet. The region of wrong Marshall sign indicates the location of the holon string.


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