Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Bajpai, Ashna"'
Autor:
Pattanayak, Namrata, Kumar, Arun, Nigam, A. K, Pomjakushin, Vladimir, Nair, Sunil, Bajpai, Ashna
We consistently observe a unique pattern in remanence in a number of canted-antiferromagnets (AFM) and piezomagnets. A part of the remanence is $\textit{quasi-static}$ in nature and vanishes above a critical magnetic field. Present work is devoted to
Externí odkaz:
http://arxiv.org/abs/2310.19009
Autor:
Thauer, Elisa, Ottmann, Alexander, Schneider, Philip, Möller, Lucas, Deeg, Lukas, Zeus, Rouven, Wilhelmi, Florian, Schlestein, Lucas, Neef, Christoph, Ghunaim, Rasha, Gellesch, Markus, Nowka, Christian, Scholz, Maik, Haft, Marcel, Wurmehl, Sabine, Wenelska, Karolina, Mijowska, Ewa, Kapoor, Aakanksha, Bajpai, Ashna, Hampel, Silke, Klingeler, Rüdiger
Publikováno v:
Molecules 25, 1064 (2020) (open access)
Downsizing well-established materials to the nanoscale is a key route to novel functionalities, in particular if different functionalities are merged in hybrid nanomaterials. Hybrid carbon-based hierarchical nanostructures are particularly promising
Externí odkaz:
http://arxiv.org/abs/2003.01379
Autor:
Homkar, Suvidyakumar, Chand, Bharat, Rajput, Shatruhan Singh, Gorantla, Sandeep, Das, Tilak, Babar, Rohit, Patil, Shivprasad, Klingeler, Ruediger, Nair, Sunil, Kabir, Mukul, Bajpai, Ashna
The current family of experimentally realized two-dimensional magnetic materials consist of 3$d$ transition metals with very weak spin-orbit coupling. In contrast, we report a new platform in a chemically bonded and layered 4$d$ oxide, with strong el
Externí odkaz:
http://arxiv.org/abs/1904.12326
Autor:
Pattanayak, Namrata, Kumar, Jitender, Patra, Partha Pratim, Kumar, G. V. Pavan, Bajpai, Ashna
We report complex dielectric and Raman spectroscopy measurements in four samples of $\alpha$- Fe$_2$O$_3$, consisting of crystallites which are either hexagonal shaped plates or cuboids. All four samples exhibit the spin reorientation transition from
Externí odkaz:
http://arxiv.org/abs/1904.07299
We have recently established that a number of Dzyaloshinskii-Moriya interaction driven canted antiferromagnets or weak ferrromagnets (WFM) including hematite exhibit an ultra-slow magnetization relaxation phenomenon, leading to the observation of a t
Externí odkaz:
http://arxiv.org/abs/1811.05231
The interface of two dissimilar materials is well known for surprises in condensed matter, and provides avenues for rich physics as well as seeds for future technological advancements. We present some exciting magnetization (M) and remnant magnetizat
Externí odkaz:
http://arxiv.org/abs/1810.06854
We demonstrate that a single zone furnace with a modified synthesis chamber design is sufficient to obtain metal (Fe, Co or Ni) filled carbon nanotubes (CNT) with high filling efficiency and controlled morphology. Samples are formed by pyrolysis of m
Externí odkaz:
http://arxiv.org/abs/1710.02413
Publikováno v:
Phys. Rev. B 96, 104422 (2017)
We explore remanent magnetization ($\mu$) as a function of time and temperature, in a variety of rhombohedral antiferromagnets (AFM) which are also weak ferromagnets (WFM) and piezomagnets (PzM). These measurements, across samples with length scales
Externí odkaz:
http://arxiv.org/abs/1703.09075
Publikováno v:
JAP 112, 053921 (2012)
We present magnetic stray field measurements performed on a single micro-crystal of the half metallic ferromagnet CrO$_2$, covered by a naturally grown 2\,-\,5\,nm surface layer of antiferromagnetic (AFM) Cr$_2$O$_3$. The temperature variation of the
Externí odkaz:
http://arxiv.org/abs/1204.0531
Autor:
Das, Pintu, Porrati, Fabrizio., Wirth, Steffen, Bajpai, Ashna, Huth, Michael, Ohno, Yuzo, Ohno, Hideo, Müller, Jens
Publikováno v:
Appl. Phys. Lett. 97, 042507 (2010)
Micro-Hall magnetometry is employed to study the magnetization dynamics of a single, micron-size CrO$_2$ grain. With this technique we track the motion of a single domain wall, which allows us to probe the distribution of imperfections throughout the
Externí odkaz:
http://arxiv.org/abs/1006.0889