Zobrazeno 1 - 10
of 311
pro vyhledávání: '"D. Senff"'
Publikováno v:
Journal of Magnetism and Magnetic Materials. 310:e187-e189
We report thermal-expansion and specific-heat data of the series La 1 - x Ca x CoO 3 for 0 ⩽ x ⩽ 0.3 . For x = 0 the thermal-expansion coefficient α ( T ) features a pronounced maximum around T = 50 K caused by a temperature-dependent spin-state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5beefe371a2ed284bde16c9a45e2b63a
https://doi.org/10.1016/j.jmmm.2006.10.529
https://doi.org/10.1016/j.jmmm.2006.10.529
Autor:
H. Ulbrich, O. Schumann, Paul Steffens, Pascal Reutler, A. Revcolevschi, Yvan Sidis, D. Senff, Markus Braden
We present diffraction data on a single-layered manganite La(0.42)Sr(1.58)MnO4 with hole doping (x>0.5). Overdoped La(0.42)Sr(1.58)MnO4 exhibits a complex ordering of charges, orbitals and spins. Single crystal neutron diffraction experiments reveal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb982988dc74cec6dd86af64beda3514
http://arxiv.org/abs/1008.4496
http://arxiv.org/abs/1008.4496
Autor:
T. Finger, Karin Schmalzl, Petra Becker, L. Bohatỳ, L. P. Regnault, Markus Braden, D. Senff, Wolfgang Schmidt
Publikováno v:
Physical Review B. 81
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::434f8dd166b79ecd2a918420fbba0b95
https://doi.org/10.1103/physrevb.81.054430
https://doi.org/10.1103/physrevb.81.054430
Autor:
T. Finger, D. Senff, Markus Braden, Petra Becker, L. P. Regnault, Ladislav Bohatý, Wolfgang Schmidt, Karin Schmalzl
Publikováno v:
Journal of physics / Conference Series 211, 012001 (2010). doi:10.1088/1742-6596/211/1/012001
Neutron diffraction with spherical polarization analysis is a powerful tool for studying the multiferroic materials where the ferroelectric polarization arises from a complex magnetic structure. Analyzing the off-diagonal terms in the polarization ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::493aaf6e343e81633c09a59c924a4c39
https://hdl.handle.net/2128/25370
https://hdl.handle.net/2128/25370
Publikováno v:
Physical Review B. 79
We report thermal-expansion, lattice-constant, and specific-heat data of the series ${\text{La}}_{1\ensuremath{-}x}{A}_{x}{\text{CoO}}_{3}$ for $0\ensuremath{\le}x\ensuremath{\le}0.30$ with $A=\text{Ca}$, Sr, and Ba. For the undoped compound ${\text{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c738a2d6794a6c198ba4ba6a6a8a0ef
https://doi.org/10.1103/physrevb.79.224104
https://doi.org/10.1103/physrevb.79.224104
Autor:
A. Maljuk, Karel Prokes, Markus Braden, N. Aliouane, D. Senff, Karin Schmalzl, Dimitri N. Argyriou
Publikováno v:
Physical review letters 102, 207205 1-4 (2009). doi:10.1103/PhysRevLett.102.207205
Using in-field single-crystal neutron diffraction, we have determined the magnetic structure of TbMnO(3) in the high field P parallel a phase. We unambiguously establish that the ferroelectric polarization arises from a cycloidal Mn spin ordering, wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e89d4ddc2cea9477a34f2c0c083d5be
https://pubmed.ncbi.nlm.nih.gov/19519070
https://pubmed.ncbi.nlm.nih.gov/19519070
Autor:
M. Reuther, D. Senff, Matthias Cwik, Yvan Sidis, Markus Braden, M. Benomar, Thomas Lorenz, T. Finger
Publikováno v:
Physical Review Letters. 102
Spin correlations in La2-xSrxCoO4 (0.3 0.3 exhibits incommensurate spin ordering with the modulation closely following the amount of doping. These incommensurate phases strongly resemble the stripe phases observed in cuprates and nickelates, but inco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b185aef1809fc069f4302f1c7240e40
https://doi.org/10.1103/physrevlett.102.057201
https://doi.org/10.1103/physrevlett.102.057201
Autor:
Thomas Lorenz, M. Benomar, O. Schumann, K. Habicht, Markus Braden, Markus Kriener, Yvan Sidis, D. Senff, P. Link
Publikováno v:
Physical Review B. 77
The magnetic correlations in the charge and orbital ordered manganite ${\text{La}}_{1/2}{\text{Sr}}_{3/2}{\text{MnO}}_{4}$ have been studied by elastic and inelastic neutron scattering techniques. Out of the well-defined charge exchange (CE)-type mag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cde136c50a8ce8c2b9ad1a9220291e10
https://doi.org/10.1103/physrevb.77.184413
https://doi.org/10.1103/physrevb.77.184413
Publikováno v:
Physical Review B. 77
The field-induced multiferroic transition in TbMnO3 has been studied by neutron scattering. Apart strong hysteresis, the magnetic transition associated with the flop of electronic polarization exhibits a memory effect: after a field sweep, TbMnO3 doe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0b43b513fd369b1bae2c36748907224
https://doi.org/10.1103/physrevb.77.174419
https://doi.org/10.1103/physrevb.77.174419
Publikováno v:
Physical review letters. 102(5)
Spin correlations in La2-xSrxCoO4 (0.3or = xor = 0.6) have been studied by neutron scattering. The commensurate antiferromagnetic order of La2CoO4 persists in a very short range up to a Sr content of x = 0.3, whereas small amounts of Sr suppress comm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::e711541e539bbaf10ddfd02a6c1c1cb6
https://pubmed.ncbi.nlm.nih.gov/19257541
https://pubmed.ncbi.nlm.nih.gov/19257541