Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Glasbrenner, J"'
Autor:
Surmach, M. A., Deng, B. J. Chen Z., Jin, C. Q., Glasbrenner, J. K., Mazin, I. I., Ivanov, A., Inosov, D. S.
Publikováno v:
Phys. Rev. B 97, 104418 (2018)
Dilute magnetic semiconductors (DMS) are nonmagnetic semiconductors doped with magnetic transition metals. The recently discovered DMS material (Ba$_{1-x}$K$_{x}$)(Zn$_{1-y}$Mn$_{y}$)$_{2}$As$_{2}$ offers a unique and versatile control of the Curie t
Externí odkaz:
http://arxiv.org/abs/1802.02847
Autor:
Zhao, K., Glasbrenner, J. K., Gretarsson, H., Schmitz, D., Bednarcik, J., Etter, M., Sun, J. P., Manna, R. S., Al-Zein, A., Lafuerza, S., Scherer, W., Cheng, J. G., Gegenwart, P.
Publikováno v:
Phys. Rev. B 97, 020510 (2018)
A well-known feature of CaFe$_{2}$As$_{2}$-based superconductors is the pressure-induced collapsed tetragonal phase that is commonly ascribed to the formation of an interlayer As-As bond. Using detailed X-ray scattering and spectroscopy, we find that
Externí odkaz:
http://arxiv.org/abs/1702.02398
Autor:
Guterding, Daniel, Jeschke, Harald O., Mazin, I. I., Glasbrenner, J. K., Bascones, E., Valenti, Roser
Publikováno v:
Phys. Rev. Lett. 118, 017204 (2017)
Unconventional superconductivity in iron pnictides and chalcogenides has been suggested to be controlled by the interplay of low-energy antiferromagnetic spin fluctuations and the particular topology of the Fermi surface in these materials. Based on
Externí odkaz:
http://arxiv.org/abs/1610.08626
Publikováno v:
Phys. Rev. B 95, 174402 (2017)
Spin-driven nematicity, or the breaking of the point-group symmetry of the lattice without long-range magnetic order, is clearly quite important in iron-based superconductors. From a symmetry point of view, nematic order can be described as a coheren
Externí odkaz:
http://arxiv.org/abs/1610.06622
Autor:
Glasbrenner, J. K.
Publikováno v:
Phys. Rev. B 93, 184402 (2016)
MnAu$_{2}$ is a spin-spiral material with in-plane ferromagnetic Mn layers that form a screw-type pattern around a tetragonal $c$ axis. The spiral angle $\theta$ was shown using neutron diffraction experiments to decrease with pressure, and in later
Externí odkaz:
http://arxiv.org/abs/1508.07887
Publikováno v:
Nat. Phys. 11, 953 (2015)
Over the past few years Fe chalcogenides (FeSe/Te) have advanced to the forefront of Fe-based superconductors (FeBS) research. The most intriguing results thus far are for intercalated and monolayer FeSe, however experimental studies are still inconc
Externí odkaz:
http://arxiv.org/abs/1501.04946
Publikováno v:
Phys. Rev. B 90, 144421 (2014)
The compound MnAu$_2$ is one of the oldest known spin-spiral materials, yet the nature of the spiral state is still not clear. The spiral cannot be explained via relativistic effects due to the short pitch of the spiral and the weakness of the spin-o
Externí odkaz:
http://arxiv.org/abs/1408.4719
Publikováno v:
Phys. Rev. B 90, 140403(R) (2014)
A recently discovered magnetic semiconductor Ba$_{1-x}$K$_{x}$(Zn$_{1-y}$Mn$_{y}$)$_2$As$_{2}$, with its decoupled spin and charge doping, provides a unique opportunity to elucidate the microscopic origin of the magnetic interaction and ordering in d
Externí odkaz:
http://arxiv.org/abs/1405.2854
Publikováno v:
Phys. Rev. B 89, 064509 (2014)
Using noncollinear first-principles calculations we perform a systematic study of the magnetic order in several families of ferropnictides. We find a fairly universal energy dependence on the magnetization order in all cases. Our results confirm that
Externí odkaz:
http://arxiv.org/abs/1401.1527
Publikováno v:
Phys. Rev. B 89, 174408 (2014)
According to earlier first-principles calculations, the spin-disorder contribution to the resistivity of rare-earth metals in the paramagnetic state is strongly underestimated if Matthiessen's rule is assumed to hold. To understand this discrepancy,
Externí odkaz:
http://arxiv.org/abs/1312.7802