Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Mallett, B."'
Autor:
Mallett, B. P. P., Venuturumilli, S., Clarke, J., Leuw, B., Rice, J. H. P., Moseley, D. A., Bumby, C. W., Geng, J., Badcock, R. A.
This paper presents experimental and modelling results of an ultra-compact self-rectifier flux pump energizing a superconducting coil. The device fits inside a volume of 65x65x50~mm and generates up to 320~A dc through the coil and a peak output volt
Externí odkaz:
http://arxiv.org/abs/2210.12999
Autor:
Sheveleva, E., Xu, B., Marsik, P., Lyzwa, F., Mallett, B. P. P., Willa, K., Meingast, C., Wolf, Th., Shevtsova, T., Pashkevich, Yu. G., Bernhard, C.
Publikováno v:
Phys. Rev. B 101, 224515 (2020)
The magnetic and superconducting properties of a series of underdoped $Ba_{1-x}Na_{x}Fe_{2}As_{2}$ (BNFA) single crystals with $0.19 \leq x\leq 0.34$ has been investigated with the complementary muon-spin-rotation ($\mu$SR) and infrared spectroscopy
Externí odkaz:
http://arxiv.org/abs/2004.13804
Autor:
Lyzwa, F., Chan, A., Khmaladze, J., Fürsich, K., Keimer, B., Bernhard, C., Minola, M., Mallett, B. P. P.
Publikováno v:
Phys. Rev. Materials 4, 043606 (2020)
We report the observation of low-frequency modes in the Raman spectra of thin-film superlattices of the high-temperature superconductor YBa$ _{2} $Cu$ _{3} $O$ _{7-\delta} $ and various manganite perovskites. Our study shows that these modes are caus
Externí odkaz:
http://arxiv.org/abs/1910.04892
Akademický článek
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Autor:
Xu, B., Cappelluti, E., Benfatto, L., Mallett, B. P. P., Marsik, P., Sheveleva, E., Lyzwa, F., Wolf, Th., Yang, R., Qiu, X. G., Dai, Y. M., Wen, H. H., Lobo, R. P. S. M., Bernhard, C.
Publikováno v:
Phys. Rev. Lett. 122, 217002 (2019)
By means of infrared spectroscopy we determine the temperature-doping phase diagram of the Fano effect for the in-plane Fe-As stretching mode in Ba$_{1-x}$K$_{x}$Fe$_{2}$As$_{2}$. The Fano parameter $1/q^2$, which is a measure of the phonon coupling
Externí odkaz:
http://arxiv.org/abs/1810.10230
Autor:
Yazdi-Rizi, M., Marsik, P., Mallett, B. P. P., Sen, K., Cerreta, A., Dubroka, A., Scigaj, M., Sánchez, F., Herranz, G., Bernhard, C.
Publikováno v:
Phys. Rev. B 95, 195107 (2017)
With infrared (IR) ellipsometry and DC resistance measurements we investigated the photo-doping at the (001) and (110) surfaces of SrTiO$_3$ (STO) single crystals and at the corresponding interfaces of LaAlO$_3$/SrTiO$_3$ (LAO/STO) heterostructures.
Externí odkaz:
http://arxiv.org/abs/1702.00034
Autor:
Mallett, B. P. P., Wang, C. N., Marsik, P., Sheveleva, E., Yazdi-Rizi, M., Tallon, J. L., Adelmann, P., Wolf, Th, Bernhard, C.
Publikováno v:
Phys. Rev. B 95, 054512 (2017)
Using muon spin rotation and infrared spectroscopy we study the relation between magnetism and superconductivity in Ba$ _{1-x} $K$ _{x} $Fe$ _{2} $As$ _{2} $ single crystals from the underdoped to the slightly overdoped regime. We find that the Fe ma
Externí odkaz:
http://arxiv.org/abs/1610.08593
Publikováno v:
Phys. Rev. B 95, 024105 (2017)
With infrared and terahertz ellipsometry we investigated the anisotropy of the infrared active phonon modes in SrTiO3 (110) single crystals in the tetragonal state below the so-called antiferrodistortive transition at T* = 105 K. In particular, we sh
Externí odkaz:
http://arxiv.org/abs/1608.02329
Autor:
Sen, K., Perret, E., Alberca, A., Uribe-Laverde, M. A., Marozau, I., Yazdi-Rizi, M., Mallett, B. P. P., Marsik, P., Piamonteze, C., Khaydukov, Y., Döbeli, M., Keller, T., Biškup, N., Varela, M., Vašátko, J., Munzar, D., Bernhard, C.
Publikováno v:
Phys. Rev. B 93, 205131 (2016)
With x-ray absorption spectroscopy and polarized neutron reflectometry we studied how the magnetic proximity effect at the interface between the cuprate high-$T_C$ superconductor $\mathrm{YBa_2Cu_3O_7}$ (YBCO) and the ferromagnet $\mathrm{La_{2/3}Ca_
Externí odkaz:
http://arxiv.org/abs/1601.03844
Autor:
Mallett, B. P. P., Khmaladze, J., Marsik, P., Perret, E., Cerreta, A., Orlita, M., Biškup, N., Varela, M., Bernhard, C.
Publikováno v:
Phys. Rev. B 94, 180503 (2016)
We show that in Pr$ _{0.5} $La$ _{0.2} $Ca$ _{0.3} $MnO$ _{3} $/YBa$ _{2} $Cu$ _{3} $O$ _{7} $ (PLCMO/YBCO) multilayers the low temperature state of YBCO is very resistive and resembles the one of a granular superconductor or a frustrated Josephson-j
Externí odkaz:
http://arxiv.org/abs/1512.03263