Výsledky vyhledávání - "Cheung, Y. W."

Report

Evidence of a structural quantum critical point in (Ca$_{x}$Sr$_{1-x}$)$_3$Rh$_4$Sn$_{13}$ from a lattice dynamics study

Autor: Cheung, Y. W., Hu, Y. J., Imai, M., Tanioku, Y., Kanagawa, H., Murakawa, J., Moriyama, K., Zhang, W., Lai, K. T., Yoshimura, K., Grosche, F. M., Kaneko, K., Tsutsui, S., Goh, Swee K.

Publikováno v: Phys. Rev. B 98, 161103(R) (2018)

Approaching a quantum critical point (QCP) has been an effective route to stabilize superconductivity. While the role of magnetic QCPs has been extensively discussed, similar exploration of a structural QCP is scarce due to the lack of suitable syste

Externí odkaz: http://arxiv.org/abs/1810.02248

Zobrazit plný text záznamu

Report

Anisotropic two-gap superconductivity and the absence of a Pauli paramagnetic limit in single-crystalline LaO$_{0.5}$F$_{0.5}$BiS$_2$

Autor: Chan, Y. C., Yip, K. Y., Cheung, Y. W., Chan, Y. T., Niu, Q., Kajitani, J., Higashinaka, R., Matsuda, T. D., Yanase, Y., Aoki, Y., Lai, K. T., Goh, Swee K.

Publikováno v: Phys. Rev. B 97, 104509 (2018)

Ambient-pressure-grown LaO$_{0.5}$F$_{0.5}$BiS$_2$ with a superconducting transition temperature $T_{c}\sim$3K possesses a highly anisotropic normal state. By a series of electrical resistivity measurements with a magnetic field direction varying bet

Externí odkaz: http://arxiv.org/abs/1710.10841

Zobrazit plný text záznamu

Report

Soft phonon modes in the vicinity of the structural quantum critical point

Autor: Hu, Y. J., Cheung, Y. W., Yu, W. C., Imai, Masaki, Kanagawa, Hibiki, Murakawa, Joichi, Yoshimura, Kazuyoshi, Goh, Swee K.

Publikováno v: Phys. Rev. B 95, 155142 (2017)

The quasi-skutterudite superconductors $A_3T_4$Sn$_{13}$ ($A$=Sr, Ca; $T$=Ir, Rh, Co) are highly tunable featuring a structural quantum critical point. We construct a temperature-lattice constant phase diagram for these isovalent compounds, establish

Externí odkaz: http://arxiv.org/abs/1704.07966

Zobrazit plný text záznamu

Report

Second-order Structural Transition in Superconductor La$_3$Co$_4$Sn$_{13}$

Autor: Cheung, Y. W., Zhang, J. Z., Zhu, J. Y., Yu, W. C., Hu, Y. J., Wang, D. G., Otomo, Yuka, Iwasa, Kazuaki, Kaneko, Koji, Imai, Masaki, Kanagawa, Hibiki, Yoshimura, Kazuyoshi, Goh, Swee K.

Publikováno v: Phys. Rev. B 93, 241112 (2016)

The quasi-skutterudite superconductor La$_3$Co$_4$Sn$_{13}$ undergoes a phase transition at $T^*=152$ K. By measuring the temperature dependence of heat capacity, electrical resistivity, and the superlattice reflection intensity using X-ray, we explo

Externí odkaz: http://arxiv.org/abs/1606.02429

Zobrazit plný text záznamu

Report

Anomalous Pressure Dependence of the Superconducting Transition Temperature in TlNi$_2$Se$_{2-x}$S$_x$

Autor: Goh, S. K., Chang, H. C., Reiss, P., Alireza, P. L., Cheung, Y. W., Lau, S. Y., Wang, Hangdong, Mao, Qianhui, Yang, Jinhu, Fang, Minghu, Grosche, F. M., Sutherland, M. L.

Publikováno v: Phys. Rev. B 90, 201105(R) (2014)

We report the pressure dependence of the superconducting transition temperature, $T_c$, in TlNi$_2$Se$_{2-x}$S$_x$ detected via the AC susceptibility method. The pressure-temperature phase diagram constructed for TlNi$_{2}$Se$_{2}$, TlNi$_{2}$S$_{2}$

Externí odkaz: http://arxiv.org/abs/1410.2506

Zobrazit plný text záznamu

Dissertation/ Thesis

Exploring combinatorial approaches to study protein tyrosine phosphatases

Autor: Cheung, Y. W.

The screening of support-bound libraries is a relatively new area, and has the potential to speed up the acquisition of useful data for the study of biological systems. Exploring this concept for the substrate mapping of protein tyrosine phosphatases

Externí odkaz: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597589

Zobrazit plný text záznamu