Zobrazeno 1 - 10
of 327
pro vyhledávání: '"Andersen, N H"'
Autor:
Ray, P. J., Andersen, N. H., Jensen, T. B. S., Mohottala, H. E., Niedermayer, Ch., Lefmann, K., Wells, B. O., Zimmermann, M. v., Udby, L.
Publikováno v:
Phys. Rev. B 96, 174106 (2017)
We present high energy X-ray diffraction studies on the structural phases of an optimal high-$T_c$ superconductor La$_{2-x}$Sr$_x$CuO$_{4+y}$ tailored by co-hole-doping. This is specifically done by varying the content of two very different chemical
Externí odkaz:
http://arxiv.org/abs/1707.08871
Autor:
Chen, Y. Z., Trier, F., Wijnands, T., Green, R. J., Gauquelin, N., Egoavil, R., Christensen, D. V., Koster, G., Huijben, M., Bovet, N., Macke, S., He, F., Sutarto, R., Andersen, N. H., Prawiroatmodjo, G. E. D. K., Jespersen, T. S., Sulpizio, J. A., Honig, M., Linderoth, S., Ilani, S., Verbeeck, J., Van Tendeloo, G., Rijnders, G., Sawatzky, G. A., Pryds, N.
The discovery of two-dimensional electron gases (2DEGs) at the interface between two insulating complex oxides, such as LaAlO3 (LAO) or gamma-Al2O3 (GAO) epitaxially grown on SrTiO3 (STO) 1,2, provides an opportunity for developing all-oxide electron
Externí odkaz:
http://arxiv.org/abs/1504.05986
Autor:
Udby, L., Larsen, J., Christensen, N. B., Boehm, M., Niedermayer, Ch., Mohottala, H. E., Jensen, T. B. S., Toft-Petersen, R., Chou, F. C., Andersen, N. H., Lefmann, K., Wells, B. O.
Publikováno v:
Phys. Rev. Lett. 111, 227001 (2013)
We present a combined magnetic neutron scattering and muon spin rotation study of the nature of the magnetic and superconducting phases in electronically phase separated La(2-x)Sr(x)CuO(4+y), x = 0.04, 065, 0.09. For all samples, we find long-range m
Externí odkaz:
http://arxiv.org/abs/1306.2155
Autor:
Chen, Y. Z., Bovet, N., Trier, F., Christensen, D. V., Qu, F. M., Andersen, N. H., Kasama, T., Zhang, W., Giraud, R., Dufouleur, J., Jespersen, T. S., Sun, J. R., Smith, A., Nygård, J., Lu, L., Büchner, B., Shen, B. G., Linderoth, S., Pryds, N.
Publikováno v:
Nature Communications, Nat Commun. 2013;4:1371
The discovery of two-dimensional electron gases (2DEGs) at the heterointerface between two insulating perovskite-type oxides, such as LaAlO3 and SrTiO3, provides opportunities for a new generation of all-oxide electronic and photonic devices. However
Externí odkaz:
http://arxiv.org/abs/1304.0336
We report the structural and magnetic characterizations of Ba3TeCo3P2O14, Pb3TeCo3P2O14, and Pb3TeCo3V2O14, compounds that are based on the mineral Dugganite, which is isostructural to Langasites. The magnetic part of the structure consists of layers
Externí odkaz:
http://arxiv.org/abs/1302.1636
Autor:
Dutton, S. E., Kumar, M., Mourigal, M., Soos, Z. G., Wen, J. -J., Broholm, C. L., Andersen, N. H., Huang, Q., Zbiri, M., Toft-Petersen, R., Cava, R. J.
Publikováno v:
Phys. Rev. Lett. 108, 187206 (2012)
A quantum magnet, LiCuSbO4, with chains of edge-sharing S = 1/2 CuO6 octahedra is reported. While the Curie-Weiss constant is ferromagnetic, \theta = 30 K, no phase transition or spin freezing occurs down to 100 mK. Specific heat indicates a distinct
Externí odkaz:
http://arxiv.org/abs/1109.4061
Autor:
Udby, L., Andersen, N. H., Chou, F. C., Christensen, N. B., Emery, S. B., Lefmann, K., Lynn, J. W., Mohottala, H. E., Niedermayer, Ch., Wells, B. O.
We present results of magnetic neutron diffraction experiments on the co-doped super-oxygenated La(2-x)Sr(x)CuO(4+y) (LSCO+O) system with x=0.09. The spin-density wave has been studied and we find long-range incommensurate antiferromagnetic order bel
Externí odkaz:
http://arxiv.org/abs/0904.0095
Autor:
Jensen, T. B. S., Christensen, N. B., Kenzelmann, M., Rønnow, H. M., Niedermayer, C., Andersen, N. H., Lefmann, K., Jiménez-Ruiz, M., Demmel, F., Li, J., Zarestky, J. L., Vaknin, D.
Detailed spin-wave spectra of magneto-electric LiNiPO4 have been measured by neutron scattering at low temperatures in the commensurate (C) antiferromagnetic (AF) phase with ordering temperature 20.8 K. An anomalous low-energy mode is observed at the
Externí odkaz:
http://arxiv.org/abs/0902.2288
Autor:
Jensen, T. B. S., Christensen, N. B., Kenzelmann, M., Rønnow, H. M., Niedermayer, C., Andersen, N. H., Lefmann, K., Schefer, J., Zimmermann, M. v., Li, J., Zarestky, J. L., Vaknin, D.
Neutron diffraction is used to probe the (H,T) phase diagram of magneto-electric (ME) LiNiPO4 for magnetic fields along the c-axis. At zero field the Ni spins order in two antiferromagnetic phases. One has commensurate (C) structures and general orde
Externí odkaz:
http://arxiv.org/abs/0901.2238