Výsledky vyhledávání - "Song, Sun Kyu"

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Topological soliton molecule in quasi 1D charge density wave

Autor: Im, Taehwan, Song, Sun Kyu, Park, Jae Whan, Yeom, Han Woong

Soliton molecules, bound states of two solitons, can be important for the informatics using solitons and the quest for exotic particles in a wide range of physical systems from unconventional superconductors to nuclear matter and Higgs field, but hav

Externí odkaz: http://arxiv.org/abs/2308.05495

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Creation and annihilation of mobile fractional solitons in atomic chains

Autor: Park, Jae Whan, Do, Eui Hwan, Shin, Jin Sung, Song, Sun Kyu, Stetsovych, Oleksandr, Jelinek, Pavel, Yeom, Han Woong

Localized modes in one dimensional topological systems, such as Majonara modes in topological superconductors, are promising platforms for robust information processing. In one dimensional topological insulators, mobile topological solitons are expec

Externí odkaz: http://arxiv.org/abs/2110.11569

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Atomistic origin of metal versus charge-density-wave phase separation in indium atomic wires on Si(111)

Autor: Song, Sun kyu, Yeom, Han Woong

We investigate in atomic scale the electronic phase separation occurring in the well known quasi 1D charge-density wave (CDW) phase of the In atomic wire array on a Si(111) surface. The characteristic atomic scale defects, originated from excess In a

Externí odkaz: http://arxiv.org/abs/2106.03380

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Dual nature of localized phase defects in the In/Si(111) atomic wire array: impurities and short topological solitons

Autor: Razzaq, Abdus Samad, Song, Sun Kyu, Kim, Tae-Hwan, Yeom, Han Woong, Wippermann, Stefan

We demonstrate the existence of atomically-sized topological solitons in a quasi one-dimensional charge density wave system: indium atomic wires on Si(111). Performing joint scanning tunneling microscopy and density-functional calculations, we show t

Externí odkaz: http://arxiv.org/abs/2012.00604

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Pseudogap and weak multifractality in disordered Mott charge-density-wave insulator

Autor: Gao, Jianhua, Park, Jae Whan, Kim, Kiseok, Song, Sun Kyu, Chen, Fangchu, Luo, Xuan, Sun, Yuping, Yeom, Han Woong

The competition, coexistence and cooperation of various orders in low-dimensional materials like spin, charge, topological orders and charge-density-wave has been one of the most intriguing issues in condensed matter physics. In particular, layered t

Externí odkaz: http://arxiv.org/abs/1904.04508

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Atomic scale variation of electron tunneling into a Luttinger liquid ? : High resolution scanning tunneling spectroscopy study on Au/Ge(001)

Autor: Park, Jewook, Nakatsuji, Kan, Kim, Tae-Hwan, Song, Sun Kyu, Komori, Fumio, Yeom, Han Woong

Au-induced atomic wires on the Ge(001) surface were recently claimed to be an ideal 1D metal and their tunneling spectra were analyzed as the manifestation of a Tomonaga-Luttinger liquid (TLL) state. We reinvestigate this system for atomically well-o

Externí odkaz: http://arxiv.org/abs/1409.4870

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