Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Andersen, B M"'
Autor:
Yin, J. -X., Zhao, Y. Y., Wu, Zheng, Wu, X. X., Kreisel, A., Andersen, B. M., Macam, Gennevieve, Zhou, Sen, Wu, Rui, Liu, Limin, Deng, Hanbin, Zhu, Changjiang, Li, Yuan, Sun, Yingkai, Huang, Zhi-Quan, Chuang, Feng-Chuan, Lin, Hsin, Ting, C. -S., Hu, J. -P., Wang, Z. Q., Dai, P. C., Ding, H., Pan, S. H.
High-temperature iron-based superconductivity develops in a structure with unusual lattice-orbital geometry, based on a planar layer of Fe atoms with 3d orbitals and tetrahedrally coordinated by anions. Here we elucidate the electronic role of anions
Externí odkaz:
http://arxiv.org/abs/2011.07701
Autor:
Zhou, R., Scherer, D. D., Mayaffre, H., Toulemonde, P., Ma, M., Li, Y., Andersen, B. M., Julien, M. -H.
Publikováno v:
npj Quantum Mater. 5, 93 (2020)
FeSe is arguably the simplest, yet the most enigmatic, iron-based superconductor. Its nematic but non-magnetic ground state is unprecedented in this class of materials and stands out as a current puzzle. Here, our NMR measurements in the nematic stat
Externí odkaz:
http://arxiv.org/abs/2010.01020
Publikováno v:
Phys. Rev. Lett. 124, 117001 (2020)
Understanding the origin of the magnetism of high temperature superconductors is crucial for establishing their unconventional pairing mechanism. Recently, theory predicts that FeSe is close to a magnetic quantum critical point, and thus weak perturb
Externí odkaz:
http://arxiv.org/abs/1909.13515
Autor:
Wang, L., He, M., Scherer, D. D., Hardy, F., Schweiss, P., Wolf, T., Merz, M., Andersen, B. M., Meingast, C.
Publikováno v:
J. Phys. Soc. Jpn. 88, 104710 (2019)
An intriguingly complex phase diagram of Na-doped SrFe2As2 is uncovered using high-resolution thermal-expansion, magnetization and heat-capacity measurements. The detailed temperature dependence of the orthorhombic distortion and the anisotropy of th
Externí odkaz:
http://arxiv.org/abs/1906.10376
Publikováno v:
Phys. Rev. Lett. 123, 247001 (2019)
Recent nuclear magnetic resonance studies [A. Pustogow {\it et al.}, arXiv:1904.00047] have challenged the prevalent chiral triplet pairing scenario proposed for Sr$_2$RuO$_4$. To provide guidance from microscopic theory as to which other pair states
Externí odkaz:
http://arxiv.org/abs/1905.04782
Autor:
Holm, S. L., Kreisel, A., Schäffer, T. K., Bakke, A., Bertelsen, M., Hansen, U. B., Retuerto, M., Larsen, J., Prabhakaran, D., Deen, P. P., Yamani, Z., Birk, J. O., Stuhr, U., Niedermayer, Ch., Fennell, A. L., Andersen, B. M., Lefmann, K.
Publikováno v:
Phys. Rev. B 97, 134304 (2018)
Inelastic neutron scattering has been used to study the magneto-elastic excitations in the multiferroic manganite hexagonal YMnO$_3$. An avoided crossing is found between magnon and phonon modes close to the Brillouin zone boundary in the $(a,b)$-pla
Externí odkaz:
http://arxiv.org/abs/1707.02468
Autor:
Lamura, G., Shiroka, T., Bordignon, S., Sanna, S., Moroni, M., De Renzi, R., Carretta, P., Biswas, P. K., Caglieris, F., Putti, M., Wurmehl, S., Singh, S. J., Shimoyama, J., Gastiasoro, M. N., Andersen, B. M.
Publikováno v:
Phys. Rev. B 94, 214517 (2016)
The deliberate insertion of magnetic Mn dopants in the Fe sites of the optimally-doped SmFeAsO0.88-F0.12 iron-based superconductor can modify in a controlled way its electronic properties. The resulting phase diagram was investigated across a wide ra
Externí odkaz:
http://arxiv.org/abs/1612.00952
Autor:
Moroni, M., Carretta, P., Allodi, G., De Renzi, R., Gastiasoro, M. N., Andersen, B. M., Materne, P., Klauss, H. -H., Kobayashi, Y., Sato, M., Sanna, S.
Publikováno v:
Phys. Rev. B 95, 180501 (2017)
$^{75}$As Nuclear Magnetic (NMR) and Quadrupolar (NQR) Resonance were used, together with M\"{o}ssbauer spectroscopy, to investigate the magnetic state induced by Mn for Fe substitutions in F-doped LaFe$_{1-x}$Mn$_{x}$AsO superconductors. The results
Externí odkaz:
http://arxiv.org/abs/1612.00610
Publikováno v:
Phys. Rev. B 94, 144509 (2016)
We study the magnetic and electronic phases of a 1D magnetic adatom chain on a 2D superconductor. In particular, we confirm the existence of a `self-organized' 1D topologically non-trivial superconducting phase within the set of subgap Yu-Shiba-Rusin
Externí odkaz:
http://arxiv.org/abs/1607.08190
Publikováno v:
Phys. Rev. Lett. 116, 167001 (2016)
Pair density wave superconductivity constitutes a novel electronic condensate proposed to be realized in certain unconventional superconductors. Establishing its potential existence is important for our fundamental understanding of superconductivity
Externí odkaz:
http://arxiv.org/abs/1601.03251