Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Marty, Karol"'
Autor:
Marty, Karol
Cette thèse présente les résultats des synthèses et études structurales et physiques de Langasites à réseaux magnétiques. D'une part, concernant le composé Pr3Ga5SiO14 à réseau magnétique topologiquement équivalent au réseau kagomé, il
Autor:
Harriger, Leland W., Lipscombe, J., Zhang, Chenglin, Luo, Huiqian, Wang, Meng, Marty, Karol, Lumsden, M. D., Dai, Pengcheng
Publikováno v:
Phys. Rev. B 85, 054511 (2012)
We use inelastic neutron scattering to study the temperature dependence of the low-energy spin excitations in single crystals of superconducting FeTe$_{0.6}$Se$_{0.4}$ ($T_c=14$ K). In the low-temperature superconducting state, the imaginary part of
Externí odkaz:
http://arxiv.org/abs/1202.5015
Autor:
Marty, Karol, Christianson, Andrew D., Santos, Antonio M. dos, Sipos, Balasz, Matsubayashi, Kazuyuki, Uwatoko, Yoshiya, Fernandez-Baca, Jaime A., Tulk, Christopher A., Maier, Thomas A., Sales, Brian C., Lumsden, Mark D.
Publikováno v:
Phys. Rev. B 86, 220509 (2012)
We have carried out a pressure study of the unconventional superconductor FeTe0.6Se0.4 up to 1.5 GPa by neutron scattering, resistivity and magnetic susceptibility measurements. We have extracted the neutron spin resonance energy and the superconduct
Externí odkaz:
http://arxiv.org/abs/1112.1874
Autor:
Sefat, Athena S., Marty, Karol, Christianson, Andrew D., Saparov, Bayrammurad, McGuire, Michael A., Lumsden, Mark D., Tien, Wei, Sales, Brian C.
Publikováno v:
PRB 85, 024503 (2012)
We investigate the thermodynamic and transport properties of molybdenum-doped BaFe2As2 (122) crystals, the first report of hole doping using a 4d element. The chemical substitution of Mo in place of Fe is possible up to ~ 7%. For Ba(Fe1-xMox)2As2, th
Externí odkaz:
http://arxiv.org/abs/1110.4390
Autor:
Zhang, Chenglin, Wang, Meng, Luo, Huiqian, Wang, Miaoyin, Liu, Mengshu, Zhao, Jun, Abernathy, D. L., Maier, T. A., Marty, Karol, Lumsden, M. D., Chi, Songxue, Chang, Sung, Rodriguez-Rivera, Jose A., Lynn, J. W., Xiang, Tao, Hu, Jiangping, Dai, Pengcheng
Publikováno v:
Scientific Reports 1, 115 (2011)
We report inelastic neutron scattering experiments on single crystals of superconducting Ba0.67K0.33Fe2As2 (Tc = 38 K). In addition to confirming the resonance previously found in powder samples, we find that spin excitations in the normal state form
Externí odkaz:
http://arxiv.org/abs/1012.4065
Autor:
Loire, Mickael, Simonet, Virginie, Petit, Sylvain, Marty, Karol, Bordet, Pierre, Lejay, Pascal, Ollivier, Jacques, Enderle, Mechthild, Steffens, Paul, Ressouche, Eric, Zorko, Andrej, Ballou, Rafik
Publikováno v:
Physical Review Letters 106, 20 (2011) 207201
The spin wave excitations emerging from the chiral helically modulated 120$^{\circ}$ magnetic order in a langasite Ba$_3$NbFe$_3$Si$_2$O$_{14}$ enantiopure crystal were investigated by unpolarized and polarized inelastic neutron scattering. A dynamic
Externí odkaz:
http://arxiv.org/abs/1010.2008
Autor:
Wang, Miaoyin, Luo, Huiqian, Zhao, Jun, Zhang, Chenglin, Wang, Meng, Marty, Karol, Chi, Songxue, Lynn, Jeffrey W., Schneidewind, Astrid, Li, Shiliang, Dai, Pengcheng
Publikováno v:
Phys. Rev. B 81, 174524 (2010)
We use elastic and inelastic neutron scattering to systematically investigate the evolution of the low-energy spin excitations of the iron arsenide superconductor BaFe2-xNixAs2 as a function of nickel doping x. In the undoped state, BaFe2As2 exhibits
Externí odkaz:
http://arxiv.org/abs/1002.3133
Autor:
Marty, Karol, Bordet, Pierre, Simonet, Virginie, Loire, Mickael, Ballou, Rafik, Darie, Céline, Kljun, Jakob, Bonville, Pierre, Isnard, Olivier, Lejay, Pascal, Zawilski, Bartosz, Simon, Charles
Publikováno v:
Physical Review B 81, 5 (2010) 054416
The Fe-based langasites are the first reported compounds presenting a magnetic ordering in this rich family, besides being well known for piezo-electric properties and optical activity. The structural, magnetic and dielectric properties of the Fe lan
Externí odkaz:
http://arxiv.org/abs/0903.4950
Autor:
Marty, Karol, Simonet, Virginie, Ressouche, Eric, Ballou, Rafik, Lejay, Pascal, Bordet, Pierre
Publikováno v:
Physical Review Letters 101, 24 (2008) 247201
A novel doubly chiral magnetic order is found out in the structurally chiral langasite compound Ba$_3$NbFe$_3$Si$_2$O$_{14}$. The magnetic moments are distributed over planar frustrated triangular lattices of triangle units. On each of these they for
Externí odkaz:
http://arxiv.org/abs/0809.3067
Autor:
Delaire, Olivier, Marty, Karol, Stone, Matthew B., Kent, Paul R. C., Lucas, Matthew S., Abernathy, Douglas L., Mandrus, David, Sales, Brian C., Dresselhaus, Mildred
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2011 Mar . 108(12), 4725-4730.
Externí odkaz:
https://www.jstor.org/stable/41125211
