Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Witte, Ralf"'
Autor:
Sarkar, Abhishek, Eggert, Benedikt, Witte, Ralf, Lill, Johanna, Velasco, Leonardo, Wang, Qingsong, Sonar, Janhavika, Ollefs, Katharina, Bhattacharya, Subramshu S., Brand, Richard A., Wende, Heiko, de Groot, Frank M. F., Clemens, Oliver, Hahn, Horst, Kruk, Robert
High entropy oxides (HEOs) are a rapidly emerging class of functional materials consisting of multiple principal cations. The original paradigm of HEOs assumes cationic occupations with the highest possible configurational entropy allowed by the comp
Externí odkaz:
http://arxiv.org/abs/2107.04274
Autor:
Witte, Ralf, Sarkar, Abhishek, Velasco, Leonardo, Kruk, Robert, Brand, Richard A., Eggert, Benedikt, Ollefs, Katharina, Weschke, Eugen, Wende, Heiko, Hahn, Horst
High entropy oxides (HEO) are a recently introduced class of oxide materials, which are characterized by a large number of elements (i.e. five or more) sharing one lattice site which crystallize in a single phase structure. One complex example of the
Externí odkaz:
http://arxiv.org/abs/2002.00026
Autor:
Witte, Ralf, Kruk, Robert, Wang, Di, Schlabach, Sabine, Brand, Richard A., Gruner, Markus E., Wende, Heiko, Hahn, Horst
Publikováno v:
Phys. Rev. B 99, 134109 (2019)
Strain and strain adaption mechanisms in modern functional materials are of crucial importance for their performance. Understanding these mechanisms will advance innovative approaches for material properties engineering. Here we study the strain adap
Externí odkaz:
http://arxiv.org/abs/1902.07596
Autor:
Witte, Ralf, Sarkar, Abhishek, Kruk, Robert, Eggert, Benedikt, Brand, Richard A., Wende, Heiko, Hahn, Horst
Publikováno v:
Phys. Rev. Materials 3, 034406 (2019)
It has been shown that oxide ceramics containing multiple transition and/or rare-earth elements in equimolar ratios have a strong tendency to crystallize in simple single phase structures, stabilized by the high configurational entropy. In analogy to
Externí odkaz:
http://arxiv.org/abs/1901.02395
Autor:
Witte, Ralf
Nanostructured magnetic materials continuously attract tremendous interest in both science and technology and their applications are found, for example, in the area of magnetic data storage. One versatile, and technologically mature, route to design
Autor:
Aziam, Hasna, Indris, Sylvio, Ben Youcef, Hicham, Witte, Ralf, Sarapulova, Angelina, Ehrenberg, Helmut, Saadoune, Ismael
Publikováno v:
In Journal of Alloys and Compounds 15 June 2022 906
Autor:
Sarkar, Abhishek, Eggert, Benedikt, Witte, Ralf, Lill, Johanna, Velasco, Leonardo, Wang, Qingsong, Sonar, Janhavika, Ollefs, Katharina, Bhattacharya, Subramshu S., Brand, Richard A., Wende, Heiko, de Groot, Frank M.F., Clemens, Oliver, Hahn, Horst, Kruk, Robert
Publikováno v:
In Acta Materialia March 2022 226
Autor:
Wolloch, Michael, Gruner, Markus E., Keune, Werner, Mohn, Peter, Redinger, Josef, Hofer, Florian, Suess, Dieter, Podloucky, Raimund, Landers, Joachim, Salamon, Soma, Scheibel, Franziska, Spodding, Detlef, Witte, Ralf, Cuenya, Beatriz Roldan, Gutfleisch, Oliver, Hu, Michael Y., Zhao, Jiyong, Toellner, Thomas, Alp, Ercan E., Siewert, Mario, Entel, Peter, Pentcheva, Rossitza, Wende, Heiko
Publikováno v:
Phys. Rev. B 94, 174435 (2016)
We present phonon dispersions, element-resolved vibrational density of states (VDOS) and corresponding thermodynamic properties obtained by a combination of density functional theory (DFT) and nuclear resonant inelastic X-ray scattering (NRIXS) acros
Externí odkaz:
http://arxiv.org/abs/1608.04268
Autor:
Witte, Ralf, Kruk, Robert, Gruner, Markus E., Brand, Richard A., Wang, Di, Schlabach, Sabine, Beck, Andre, Provenzano, Virgil, Pentcheva, Rossitza, Wende, Heiko, Hahn, Horst
Publikováno v:
Phys. Rev. B 93, (2016) 104416
We report on a strain-induced martensitic transformation, accompanied by a suppression of magnetic order in epitaxial films of chemically disordered FeRh. X-ray diffraction, transmission electron microscopy and electronic structure calculations revea
Externí odkaz:
http://arxiv.org/abs/1602.08933
Autor:
Gorji, Saleh, Kashiwar, Ankush, Mantha, Lakshmi S., Kruk, Robert, Witte, Ralf, Marek, Peter, Hahn, Horst, Kübel, Christian, Scherer, Torsten
Publikováno v:
In Ultramicroscopy December 2020 219