Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Frandsen, B. A."'
Probing the quantum phase transition in Mott insulator BaCoS_2 tuned by pressure and Ni-substitution
Autor:
Guguchia, Z., Frandsen, B. A., Santos-Cottin, D., Cheung, S. C., Gong, Z., Sheng, Q., Yamakawa, K., Hallas, A. M., Wilson, M. N., Cai, Y., Beare, J., Khasanov, R., De Renzi, R., Luke, G. M., Shamoto, S., Gauzzi, A., Klein, Y., Uemura, Y. J.
Publikováno v:
Phys. Rev. Materials 3, 045001 (2019)
We present a muon spin relaxation study of the Mott transition in BaCoS_2 using two independent control parameters: (i) pressure p to tune the electronic bandwidth and (ii) Ni-substitution x on the Co site to tune the band filling. For both tuning pa
Externí odkaz:
http://arxiv.org/abs/1901.07802
Autor:
Yi, M., Frano, A., Lu, D. H., He, Y., Wang, M., Frandsen, B. A., Kemper, A. F., Yu, R., Si, Q., Wang, L., He, M., Hardy, F., Schweiss, P., Adelmann, P., Wolf, T., Hashimoto, M., Mo, S. -K., Hussain, Z., Tacon, M. Le, Bohmer, A. E., Lee, D. -H., Shen, Z. -X., Meingast, C., Birgeneau, R. J.
Publikováno v:
Phys. Rev. Lett. 121, 127001 (2018)
We report an angle-resolved photoemission spectroscopy study of the iron-based superconductor family, Ba$_{1-x}$Na$_x$Fe$_2$As$_2$. This system harbors the recently discovered double-Q magnetic order appearing in a reentrant C$_4$ phase deep within t
Externí odkaz:
http://arxiv.org/abs/1809.06929
Autor:
Cai, Y., Wilson, M. N., Hallas, A. M., Liu, L., Frandsen, B. A., Dunsiger, S. R., Krizan, J. W., Cava, R. J., Uemura, Y. J., Rubel, O., Luke, G. M.
A new pyrochlore compound, NaCaNi$_2$F$_7$, was recently synthesized and has a single magnetic site with spin-1 Ni$^{2+}$. We present zero field (ZF) and longitudinal field (LF) muon spin rotation ($\mu$SR) measurements on this pyrochlore. Density fu
Externí odkaz:
http://arxiv.org/abs/1806.10970
Autor:
Guguchia, Z., Adachi, T., Shermadini, Z., Ohgi, T., Chang, J., Bozin, E., von Rohr, F., Santos, A. M. dos, Molaison, J. J., Boehler, R., Koike, Y., Wieteska, A. R., Frandsen, B. A., Morenzoni, E., Amato, A., Billinge, S. J. L., Uemura, Y. J., Khasanov, R.
Publikováno v:
Phys. Rev. B 96, 094515 (2017)
High-pressure neutron powder diffraction, muon-spin rotation and magnetization studies of the structural, magnetic and the superconducting properties of the Ce-underdoped superconducting (SC) electron-doped cuprate system T'-Pr_1.3-xLa_0.7Ce_xCuO_4 w
Externí odkaz:
http://arxiv.org/abs/1704.07033
Autor:
Guguchia, Z., Rohr, F. v., Shermadini, Z., Lee, A. T., Banerjee, S., Wieteska, A. R., Marianetti, C. A., Luetkens, H., Gong, Z., Frandsen, B. A., Cheung, S. C., Baines, C., Shengelaya, A., Pasupathy, A. N., Morenzoni, E., Billinge, S. J. L., Amato, A., Cava, R. J., Khasanov, R., Uemura, Y. J.
Publikováno v:
Nature Communications 8, 1082 (2017)
MoTe_2, with the orthorhombic T_d phase, is a new type (type-II) of Weyl semimetal, where the Weyl Fermions emerge at the boundary between electron and hole pockets. Non-saturating magnetoresistance (MR), and superconductivity were also observed in T
Externí odkaz:
http://arxiv.org/abs/1704.05185
Akademický článek
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Autor:
Wilson, M. N., Medina, T., Munsie, T. J., Cheung, S. C., Frandsen, B. A., Liu, L., Yan, J., Mandrus, D., Uemura, Y. J., Luke, G. M.
Publikováno v:
Phys. Rev. B 94, 184504 (2016)
We present magnetometry and muon spin rotation ($\mu$SR) measurements of the superconducting dichalcogenide Ir$_{0.95}$Pt$_{0.05}$Te$_2$. From both sets of measurements we calculate the penetration depth and thence superfluid density as a function of
Externí odkaz:
http://arxiv.org/abs/1605.04296
Autor:
Wilson, M. N., Williams, T. J., Cai, Y. -P., Hallas, A. M., Medina, T., Munsie, T. J., Cheung, S. C., Frandsen, B. A., Liu, L., Uemura, Y. J., Luke, G. M.
We present muon spin rotation ($\mu$SR) and susceptibility measurements on single crystals of isoelectronically doped URu$_{2-x}$T$_x$Si$_2$ (T = Fe, Os) for doping levels up to 50\%. Zero Field (ZF) $\mu$SR measurements show long-lived oscillations
Externí odkaz:
http://arxiv.org/abs/1512.01512
Autor:
Chen, B. J., Zhao, K., Deng, Z., Han, W., Zhu, J. L., Wang, X. C., Liu, Q. Q., Frandsen, B., Liu, L., Cheung, S., Ning, F. L., Munsie, T. J. S., Medina, T., Luke, G. M., Carl, J. P., Munevar, J., Uemura, Y. J., Jin, C. Q.
Publikováno v:
Phys. Rev. B 90, 155202(2014)
A new diluted ferromagnetic semiconductor (Sr,Na)(Zn,Mn)2As2 is reported, in which charge and spin doping are decoupled via Sr/Na and Zn/Mn substitutions, respectively, being distinguished from classic (Ga,Mn)As where charge & spin doping are simulta
Externí odkaz:
http://arxiv.org/abs/1411.4536
Autor:
Zhao, K., Chen, B. J., Deng, Z., Han, W., Zhao, G. Q., Zhu, J. L., Liu, Q. Q., Wang, X. C., Frandsen, B., Liu, L., Cheung, S., Ning, F. L., Munsie, T. J. S., Medina, T., Luke, G. M., Carlo, J. P., Munevar, J., Zhang, G. M., Uemura, Y. J., Jin, C. Q.
Publikováno v:
J Appl Phys.116,163906(2014)
Here we report the successful synthesis of a spin- & charge-decoupled diluted magnetic semiconductor (Ca,Na)(Zn,Mn)2As2, crystallizing into the hexagonal CaAl2Si2 structure. The compound shows a ferromagnetic transition with a Curie temperature up to
Externí odkaz:
http://arxiv.org/abs/1410.8015