Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Khomskii, Daniel I."'
Autor:
Amiel, Yehezkel, Kafle, Gyanu P., Komleva, Evgenia V., Greenberg, Eran, Ponosov, Yuri S., Chariton, Stella, Lavina, Barbara, Zhang, Dongzhou, Palevski, Alexander, Ushakov, Alexey V., Mori, Hitoshi, Khomskii, Daniel I., Mazin, Igor I., Streltsov, Sergey V., Margine, Elena R., Rozenberg, Gregory Kh.
Gold is one of the most inert metals, forming very few compounds, some with rather interesting properties, and only two of them currently known to be superconducting under certain conditions (AuTe$_2$ and SrAuSi$_3$). Compounds of another noble eleme
Externí odkaz:
http://arxiv.org/abs/2301.08033
Autor:
Yogi, Arvind Kumar, Yaresko, Alexander, Sathish, C. I., Sim, Hasung, Morikawa, Daisuke, Nuss, J., Tsuda, Kenji, Noda, Y., Khomskii, Daniel I., Park, Je-Geun
Publikováno v:
Communications Materials 3, 3 (2022) (the Nature journal)
How particular bonds form in quantum materials has been a long-standing puzzle. Two key concepts dealing with charge degrees of freedom are dimerization (forming metal-metal bonds) and charge ordering (CO). Since the 1930s, these two concepts have be
Externí odkaz:
http://arxiv.org/abs/2202.06437
Autor:
Wagner, Julian, Sahasrabudhe, Anuja, Versteeg, Rolf, Wysocki, Lena, Wang, Zhe, Tsurkan, Vladimir, Loidl, Alois, Khomskii, Daniel. I., Hedayat, Hamoon, van Loosdrecht, Paul H. M.
$\alpha$-RuCl$_3$ is a promising candidate material to realize the so far elusive quantum spin liquid ground state. However, at low temperatures, the coexistence of different exchange interactions couple the effective pseudospins into an antiferromag
Externí odkaz:
http://arxiv.org/abs/2201.02842
Autor:
Thakur, Gohil S., Reuter, Hans, Ushakov, Alexey V., Gallo, Gianpiero, Nuss, Jueurgen, Dinnebier, Robert E., Streltsov, Sergey V., Khomskii, Daniel I., Jansen, Martin
Publikováno v:
Angew. Chem. Int. Ed. 60 (2021) 16500-16505
The Jahn-Teller theorem constitutes one of the most popular and stringent concepts, applicable to all fields of chemistry. In open shell transition elements chemistry and physics, 3d4, 3d9, and 3d7(low-spin) configurations in octahedral complexes ser
Externí odkaz:
http://arxiv.org/abs/2103.06065
Autor:
Cho, Hwanbeom, Kim, Choong H., Lee, Yongmoon, Komatsu, Kazuki, Cho, Byeong-Gwan, Cho, Deok-Yong, Kim, Taehun, Kim, Chaebin, Kim, Younghak, Koo, Tae Yeong, Noda, Yukio, Kagi, Hiroyuki, Khomskii, Daniel I., Seoung, Donghoon, Park, Je-Geun
Publikováno v:
Phys. Rev. B 103, 081101 (2021)
The spin-orbit entangled (SOE) Jeff-state has been a fertile ground to study novel quantum phenomena. Contrary to the conventional weakly correlated Jeff=1/2 state of 4d and 5d transition metal compounds, the ground state of CuAl2O4 hosts a Jeff=1/2
Externí odkaz:
http://arxiv.org/abs/2101.00754
Publikováno v:
Phys. Rev. B 102, 174448 (2020)
A recently synthesised series of isostructural compounds Ba$_4$NbTM$_3$O$_{12}$ (TM = Mn, Rh and Ir) with transition-metal trimers in a face-sharing geometry makes it possible to examine a tendency to the molecular orbitals (MO) formation going from
Externí odkaz:
http://arxiv.org/abs/2007.15230
Autor:
Takubo, Kou, Mizokawa, Takashi, Man, Huiyuan, Yamamoto, Kohei, Zhang, Yujun, Hirata, Yasuyuki, Wadati, Hiroki, Yasui, Akira, Khomskii, Daniel I., Nakatsuji, Satoru
Publikováno v:
Phys. Rev. Materials 5, 075002 (2021)
Both the Jahn-Teller distortion of Cu$^{2+}$O$_6$ octahedra and magnetic ordering are absent in hexagonal Ba$_3$CuSb$_2$O$_9$ suggesting a Cu 3$d$ spin-orbital liquid state. Here, by means of resonant x-ray scattering and absorption experiment, we sh
Externí odkaz:
http://arxiv.org/abs/2005.08200
Autor:
Murota, Kota, Pachoud, Elise, Attfield, J. Paul, Glaum, Robert, Sutarto, Ronny, Takubo, Kou, Khomskii, Daniel I., Mizokawa, Takashi
Publikováno v:
Phys. Rev. B 101, 245106 (2020)
V 3$d$ charge and orbital states in V$_2$OPO$_4$ have been investigated by means of x-ray absorption spectroscopy (XAS). The electronic structure of V$_2$OPO$_4$ is very unique in that the charge transfer between V$^{2+}$ and V$^{3+}$ in face sharing
Externí odkaz:
http://arxiv.org/abs/2002.00337
Autor:
Li, Nana, Fan, Fengren, Sun, Fei, Wang, Yonggang, Zhao, Yongsheng, Liu, Fengliang, Zhang, Qian, Ikuta, Daijo, Xiao, Yuming, Chow, Paul, Heald, Steve M., Sun, Chengjun, Brewe, Dale, Li, Aiguo, Lü, Xujie, Mao, Ho-kwang, Khomskii, Daniel I., Wu, Hua, Yang, Wenge
Spin crossover plays a central role in the structural instability, net magnetic moment modification, metallization, and even in superconductivity in corresponding materials. Most reports on the pressure-induced spin crossover with a large volume coll
Externí odkaz:
http://arxiv.org/abs/1905.01521
Autor:
Yun, Seokhwan, Lee, Ki Hoon, Park, Se Young, Tan, Teck-Yee, Park, Junghwan, Kang, Soonmin, Khomskii, Daniel I., Jo, Younjung, Park, Je-Geun
Publikováno v:
Phys. Rev. B 100, 165119 (2019)
Li2RuO3 undergoes a structural transition at a relatively high temperature of 550 K with a distinct dimerization of Ru-Ru bonds on the otherwise isotropic honeycomb lattice. It exhibits a unique herringbone dimerization pattern with a largest ever re
Externí odkaz:
http://arxiv.org/abs/1903.08812