Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Koch, R J"'
Autor:
Li, Yangmu, Sapkota, A., Lozano, P. M., Du, Zengyi, Li, Hui, Wu, Zebin, Kundu, Asish K., Koch, R. J., Wu, Lijun, Winn, B. L., Chi, Songxue, Matsuda, M., Frontzek, M., Bozin, E. S., Zhu, Yimei, Bozovic, I., Pasupathy, Abhay N., Drozdov, Ilya K., Fujita, Kazuhiro, Gu, G. D., Zaliznyak, Igor, Li, Qiang, Tranquada, J. M.
Publikováno v:
Phys. Rev. B 106, 224515 (2022)
The interpretation of how superconductivity disappears in cuprates at large hole doping has been controversial. To address this issue, we present an experimental study of single-crystal and thin film samples of La$_{2-x}$Sr$_x$CuO$_4$ (LSCO) with $x\
Externí odkaz:
http://arxiv.org/abs/2205.01702
Autor:
Koch, R. J., Sinclair, R., McDonnell, M. T., Yu, R., Abeykoon, M., Tucker, M. G., Tsvelik, A. M., Billinge, S. J. L., Zhou, H. D., Yin, W. -G., Bozin, E. S.
Publikováno v:
Phys. Rev. Lett. 126, 186402 (2021)
The local structure of NaTiSi$_{2}$O$_{6}$ is examined across its Ti-dimerization orbital-assisted Peierls transition at 210 K. An atomic pair distribution function approach evidences local symmetry breaking preexisting far above the transition. The
Externí odkaz:
http://arxiv.org/abs/2009.14288
Autor:
Liu, Yu, Koch, R. J., Hu, Zhixiang, Aryal, Niraj, Stavitski, Eli, Tong, Xiao, Attenkofer, Klaus, Bozin, E. S., Yin, Weiguo, Petrovic, C.
Publikováno v:
Phys. Rev. B 102, 085158 (2020)
We carried out a comprehensive study of magnetic critical behavior in single crystals of ternary chalcogenide FeCr$_2$Te$_4$ that undergoes a ferrimagnetic transition below $T_c$ $\sim$ 123 K. Detailed critical behavior analysis and scaled magnetic e
Externí odkaz:
http://arxiv.org/abs/2007.06805
Autor:
Miao, H., Fabbris, G., Koch, R. J., Mazzone, D. G., Nelson, C. S., Acevedo-Esteves, R., Li, Y., Gu, G. D., Yilmaz, T., Kaznatcheev, K., Vescovo, E., Oda, M., Kurosawa, K., Momono, N., Assefa, T. A., Robinson, I. K., Bozin, E., Tranquada, J. M., Johnson, P. D., Dean, M. P. M.
Publikováno v:
npj Quantum Materials 6, 31 (2021)
The unconventional normal-state properties of the cuprates are often discussed in terms of emergent electronic order that onsets below a putative critical doping of xc = 0.19. Charge-density wave (CDW) correlations represent one such order; however,
Externí odkaz:
http://arxiv.org/abs/2001.10294
Autor:
Vidal, R. C., Bentmann, H., Peixoto, T. R. F., Zeugner, A., Moser, S., Min, C. H., Schatz, S., Kissner, K., Ünzelmann, M., Fornari, C. I., Vasili, H. B., Valvidares, M., Sakamoto, K., Mondal, D., Fujii, J., Vobornik, I., Jung, S., Cacho, C., Kim, T. K., Koch, R. J., Jozwiak, C., Bostwick, A., Denlinger, J. D., Rotenberg, E., Buck, J., Hoesch, M., Diekmann, F., Rohlf, S., Kalläne, M., Rossnagel, K., Otrokov, M. M., Chulkov, E. V., Ruck, M., Isaeva, A., Reinert, F.
Publikováno v:
Phys. Rev. B 100, 121104 (2019)
The layered van der Waals antiferromagnet MnBi$_2$Te$_4$ has been predicted to combine the band ordering of archetypical topological insulators such as Bi$_2$Te$_3$ with the magnetism of Mn, making this material a viable candidate for the realization
Externí odkaz:
http://arxiv.org/abs/1903.11826
Autor:
Konstantinova, T., Wu, L., Abeykoon, M., Koch, R. J., Wang, A. F., Li, R. K., Shen, X., Li, J., Tao, J., Zaliznyak, I. A., Petrovic, C., Billinge, S. J. L., Wang, X. J., Bozin, E. S., Zhu, Y.
Publikováno v:
Phys. Rev. B 99, 180102 (2019)
Formation of electronic nematicity is a common thread of unconventional superconductors. In iron-based materials, the long-range nematic order is revealed by the orthorhombic lattice distortion, which importance is a highly controversial topic due th
Externí odkaz:
http://arxiv.org/abs/1903.00799
Autor:
Mangelis, P., Koch, R. J., Lei, H., Neder, R. B., McDonnell, M. T., Feygenson, M., Petrovic, C., Lappas, A., Bozin, E. S.
Publikováno v:
Phys. Rev. B 100, 094108 (2019)
A detailed account of the local atomic structure and disorder at 5~K across the phase diagram of the high temperature superconductor K$_x$Fe$_{2-y}$Se$_{2-z}$S$_z$ $(0 \leq z \leq 2)$ is obtained from neutron total scattering and associated atomic pa
Externí odkaz:
http://arxiv.org/abs/1903.00088
Autor:
Koch, R. J., Konstantinova, T., Abeykoon, M., Wang, A., Petrovic, C., Zhu, Y., Bozin, E. S., Billinge, S. J. L.
Publikováno v:
Phys. Rev. B 100, 020501 (2019)
We report pair distribution function measurements of the iron-based superconductor FeSe above and below the structural transition temperature. Structural analysis reveals a local orthorhombic distortion with a correlation length of about 4 nm at temp
Externí odkaz:
http://arxiv.org/abs/1902.08732
Autor:
Bozin, E. S., Yin, W. G., Koch, R. J., Abeykoon, M., Hor, Y. S., Zheng, H., Lei, H. C., Petrovic, C., Mitchell, J. F., Billinge, S. J. L.
Fundamental electronic principles underlying all transition metal compounds are the symmetry and filling of the $d$-electron orbitals and the influence of this filling on structural configurations and responses. Here we use a sensitive local structur
Externí odkaz:
http://arxiv.org/abs/1901.10104
Autor:
Gebhardt, J., Koch, R. J., Zhao, W., Höfert, O., Gotterbarm, K., Mammadov, S., Papp, C., Görling, A., Steinrück, H. -P., Seyller, Th.
The doping of graphene to tune its electronic structure is essential for its further use in carbon based electronics. Adapting strategies from classical silicon based semiconductor technology, we use the incorporation of heteroatoms in the 2D graphen
Externí odkaz:
http://arxiv.org/abs/1212.0212