Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Fuhrman, W. T."'
Autor:
Park, W. K., Sittler, J. A., Greene, L. H., Fuhrman, W. T., Chamorro, J. R., Koohpayeh, S. M., Phelan, W. A., McQueen, T. M.
Publikováno v:
Phys. Rev B 103, 155125 (2021)
The true topological nature of the Kondo insulator SmB$_6$ remains to be unveiled. Our previous tunneling study not only found evidence for the existence of surface Dirac fermions, but it also uncovered that they inherently interact with the spin exc
Externí odkaz:
http://arxiv.org/abs/2104.07178
Autor:
Fuhrman, W. T., Sidorenko, A., Hänel, J., Winkler, H., Prokofiev, A., Rodriguez-Rivera, J. A., Qiu, Y., Blaha, P., Si, Q., Broholm, C. L., Paschen, S.
The observation of quantum criticality in diverse classes of strongly correlated electron systems has been instrumental in establishing ordering principles, discovering new phases, and identifying the relevant degrees of freedom and interactions. At
Externí odkaz:
http://arxiv.org/abs/2007.09460
Autor:
Gheidi, S., Akintola, K., Cote, A. M., Dunsiger, S. R., Broholm, C., Fuhrman, W. T., Saha, S. R., Paglione, J., Sonier, J. E.
Publikováno v:
Phys. Rev. Lett. 123, 197203 (2019)
By means of new muon spin relaxation experiments, we disentangle extrinsic and intrinsic sources of low-temperature bulk magnetism in the candidate topological Kondo insulator (TKI) SmB6. Results on Al-flux grown SmB6 single crystals are compared to
Externí odkaz:
http://arxiv.org/abs/1905.08769
The crystal structure of the new superconductor UTe2 has been investigated for the first time at low temperature (LT) of 2.7 K, just closely above the superconducting transition temperature of about 1.7 K by single crystal neutron diffraction, in ord
Externí odkaz:
http://arxiv.org/abs/1905.04377
Autor:
Fuhrman, W. T., Nikolić, P.
Publikováno v:
Phys. Rev. B 101, 245118 (2020)
Impurities and defects in Kondo insulators can have an unusual impact on dynamics that blends with effects of intrinsic electron correlations. Such crystal imperfections are difficult to avoid, and their consequences are incompletely understood. Here
Externí odkaz:
http://arxiv.org/abs/1807.00005
Autor:
Fuhrman, W. T., Leiner, J. C., Freeland, J. W., van Veenendaal, M., Koohpayeh, S. M., Phelan, W. Adam, McQueen, T. M., Broholm, C.
Publikováno v:
Phys. Rev. B 99, 020401 (2019)
Samarium hexaboride is a topological Kondo insulator, with metallic surface states manifesting from its insulating band structure. Since the insulating bulk itself is driven by strong correlations, both the bulk and surface host compelling magnetic a
Externí odkaz:
http://arxiv.org/abs/1804.06853
Autor:
Boulanger, M-E., Laliberté, F., Dion, M., Badoux, S., Doiron-Leyraud, N., Phelan, W. A., Koohpayeh, S. M., Fuhrman, W. T., Chamorro, J. R., McQueen, T. M., Wang, X., Nakajima, Y., Metz, T., Paglione, J., Taillefer, L.
Publikováno v:
Phys. Rev. B 97, 245141 (2018)
The thermal conductivity $\kappa$ of the Kondo insulator SmB$_6$ was measured at low temperature, down to 70 mK, in magnetic fields up to 15 T, on single crystals grown using both the floating-zone and the flux methods. The residual linear term $\kap
Externí odkaz:
http://arxiv.org/abs/1709.10456
Autor:
Fuhrman, W. T., Nikolic, P.
Publikováno v:
Phys. Rev. B 90, 195144 (2014)
Samarium hexaboride (SmB$_6$) is the first strongly correlated material with a recognized non-trivial band-structure topology. Its electron correlations are seen by inelastic neutron scattering as a coherent collective excitation at the energy of 14
Externí odkaz:
http://arxiv.org/abs/1409.3220
Autor:
Fuhrman, W. T., Leiner, J., Nikolić, P., Granroth, G. E., Stone, M. B., Lumsden, M. D., DeBeer-Schmitt, L., Alekseev, P. A., Mignot, J. -M., Koohpayeh, S. M., Cottingham, P., Phelan, W. Adam, Schoop, L., McQueen, T. M., Broholm, C.
Using inelastic neutron scattering, we map a 14 meV coherent resonant mode in the topological Kondo insulator SmB6 and describe its relation to the low energy insulating band structure. The resonant intensity is confined to the X and R high symmetry
Externí odkaz:
http://arxiv.org/abs/1407.2647
Autor:
Mourigal, M., Fuhrman, W. T., Sheckelton, J. P., Wartelle, A., Rodriguez-Rivera, J. A., Abernathy, D. L., McQueen, T. M., Broholm, C. L.
Publikováno v:
Phys. Rev. Lett., 112, 027202 (2014)
Inelastic neutron scattering for temperatures below 30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin 1/2 Mo3O13 molecules. Apparently gapless (\Delta < 0.2 meV) and
Externí odkaz:
http://arxiv.org/abs/1309.1165