Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Axel Handstein"'
Autor:
Konstantin Nenkov, L. Seetha Lakshmi, K.-H. Müller, Kathrin Dörr, V. S. Sastry, Axel Handstein
Publikováno v:
The European Physical Journal B. 58:115-121
We report the charge state modification effects at the Mn site on the ground state properties of colossal magnetoresistive manganites. Ta5+ substitution results in an appreciable increase in the lattice parameters and unit cell volume due to increase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::106560f5ad71d4d8a15145524c83d59a
https://doi.org/10.1140/epjb/e2007-00218-0
https://doi.org/10.1140/epjb/e2007-00218-0
Publikováno v:
Journal of Magnetism and Magnetic Materials. :1206-1209
Sm 2 (Co,Cu,Fe,Zr) 17 -based magnets were prepared by melt-spinning and subsequent annealing. Depending on the temperature range for the cooling regime, both normal and abnormal temperature dependences of the coercivity were observed in melt-spun Sm(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86f3458938a95489d95f2a7542a52042
https://doi.org/10.1016/j.jmmm.2004.11.386
https://doi.org/10.1016/j.jmmm.2004.11.386
Autor:
M. Loewenhaupt, Bogdan Idzikowski, K.-H. Müller, A. Hoell, N. Stüßer, A. Kreyssig, A. Heinemann, Axel Handstein, Konstantin Nenkov, N. Kozlova, Ulrich K. Rößler
Publikováno v:
Journal of Magnetism and Magnetic Materials. :1093-1096
Alloyed ( Mn 1 - x Fe x ) Au 2 ribbons ( x = 0 –0.075) show a complex dependence of magnetization and magnetoresistivity on composition, magnetic field, and temperature. This is associated with the helimagnetism of MnAu 2 and the field-driven trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d3b83d3d01539b4d124967a9589eaf4
https://doi.org/10.1016/j.jmmm.2004.11.463
https://doi.org/10.1016/j.jmmm.2004.11.463
Publikováno v:
Journal of Physics D: Applied Physics. 37:2628-2631
Magnetocaloric effect (MCE) in low-cost iron-based binary alloys R2Fe17 (R = Y, Pr) has been investigated by measuring their magnetic properties. The Curie temperature of these alloys is found to be close to room temperature. The specific heat measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::727edbcfae494a57ec4e1149c9b0436c
https://doi.org/10.1088/0022-3727/37/19/002
https://doi.org/10.1088/0022-3727/37/19/002
Autor:
Ludwig Schultz, T. Walter, Yu. Skourski, Axel Handstein, D. Eckert, Karl-Hartmut Müller, Nadejda Kozlova, Kathrin Dörr
Publikováno v:
Physica B: Condensed Matter. :74-78
The magnetoresistance of textured and non-textured polycrystalline thin films of La0.7Sr0.3MnO3 has been measured in pulsed magnetic fields up to 60 T between 4.2 and 300 K. The non-textured film shows a linear increase with increasing field of the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ac122d692e632cfb45dc36b4945b0c4
https://doi.org/10.1016/j.physb.2004.01.023
https://doi.org/10.1016/j.physb.2004.01.023
Publikováno v:
Materials Science and Engineering: B. 108:28-32
The direct synthesis of Mg 2 FeH 6 by mechanical alloying in hydrogen atmosphere (‘reactive milling’) has been investigated using different high-energy ball milling conditions. Using planetary and vibration mills, the influence of milling tempera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::647ff58afb683e82ba6b15a682bcb63e
https://doi.org/10.1016/j.mseb.2003.10.031
https://doi.org/10.1016/j.mseb.2003.10.031
Autor:
V. N. Narozhnyi, Warren E. Pickett, Shigeki Otani, Karl-Hartmut Müller, K. Nenkov, Axel Handstein, G. Fuchs, Stefan-Ludwig Drechsler, Günter Behr, Ludwig Schultz, A. Gümbel, H. Rosner, H. Eschrig, Jürgen Eckert, S. V. Shulga
Publikováno v:
Journal of Low Temperature Physics. 131:1159-1163
A combined experimental and theoretical study of superconducting, electronic and thermodynamic properties of various isomorphic diborides is reported. The H c2(T) data of bulk MgB2 are analyzed within a two-band model with different couplings and Fer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eaf41e28f8b648d1405774d9f75b911
https://doi.org/10.1023/a:1023473731568
https://doi.org/10.1023/a:1023473731568
Publikováno v:
Physica C: Superconductivity. 383:421-430
Resistivity, ac susceptibility and magnetization measurements are reported for polycrystalline samples of the Gd x Y 1− x Ni 2 B 2 C series as a function of temperature and magnetic field. The magnetic Gd impurities cause an almost linear decrease
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efbdcd4ed1cb74e5111f3889e42c9601
https://doi.org/10.1016/s0921-4534(02)01336-9
https://doi.org/10.1016/s0921-4534(02)01336-9
Autor:
Anke Kirehner Aru Yan, Karl-Hartmut Müller, Oliver Gutfleisch, Ludwig Schultz, D. Hinz, Juergen Eckert, Golden Kumar, Axel Handstein, Alberto Bollero
Publikováno v:
Journal of Korean Powder Metallurgy Institute. 9:381-393
Recent developments in nanocrystalline and nanocomposite rare earth-transition metal magnets are reviewed and emphasis is placed on research work at IFW Dresden. Principal synthesis methods include high energy ball milling, melt spinning, mold castin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16987df3869109ac95fb295aa315a25f
https://doi.org/10.4150/kpmi.2002.9.6.381
https://doi.org/10.4150/kpmi.2002.9.6.381
Autor:
T. Donchev, A. Spasov, H Vincent, K. Dörr, K.A Nenkov, S Pignard, Axel Handstein, E. S. Vlakhov
Publikováno v:
Vacuum. 69:249-253
Thin films of La 0.7 Sr 0.3 MnO 3 were deposited by magnetron sputtering on SrTiO 3 (1 0 0) and LaAlO 3 (1 0 0) substrates. The influence of deposition parameters such as substrate temperature, chamber pressure as well as film growth rate on structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12d31ac403aa517dc33c706156f5e6f6
https://doi.org/10.1016/s0042-207x(02)00340-8
https://doi.org/10.1016/s0042-207x(02)00340-8