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pro vyhledávání: '"Bowlan, John"'
Autor:
Bowlan, John
One of the fundamental properties of bulk metals is the cancellation of electric fields. The free charges inside of a metal will move until they find an arrangement where the internal electric field is zero. This implies that the electric dipole mome
Externí odkaz:
http://hdl.handle.net/1853/34751
Autor:
Carr, Adra, Bowlan, John, Mazzoli, Claudio, Barbour, Andi, Hu, Wen, Wilkins, Stuart, Walker, Colby, Ding, Xiaxin, Kim, Jong Hyuk, Lee, Nara, Choi, Young Jai, Lin, Shi-Zeng, Sandberg, Richard L., Zapf, Vivien S.
Publikováno v:
Phys. Rev. B 103, 060401 (2021)
X-ray photon correlation spectroscopy (XPCS) enables us to study dynamics of antiferromagnets. Using coherent soft X-ray diffraction, we resonantly probe Mn and Co Bragg peaks in the frustrated magnetic chain compound Lu2CoMnO6 significantly below th
Externí odkaz:
http://arxiv.org/abs/2006.01239
Autor:
Li, Weiwei, He, Qian, Wang, Le, Zeng, Huizhong, Bowlan, John, Ling, Langsheng, Yarotski, Dmitry A., Zhang, Wenrui, Zhao, Run, Dai, Jiahong, Gu, Junxing, Shen, Shipeng, Guo, Haizhong, Pi, Li, Wang, Haiyan, Wang, Yongqiang, Velasco-Davalos, Ivan A., Wu, Yangjiang, Hu, Zhijun, Chen, Bin, Li, Run-Wei, Sun, Young, Jin, Kuijuan, Zhang, Yuheng, Chen, Hou-Tong, Ju, Sheng, Ruediger, Andreas, Shi, Daning, Borisevich, Albina Y., Yang, Hao
Controlling functionalities, such as magnetism or ferroelectricity, by means of oxygen vacancies (VO) is a key issue for the future development of transition metal oxides. Progress in this field is currently addressed through VO variations and their
Externí odkaz:
http://arxiv.org/abs/1708.08235
Autor:
Sinha, Kishan, Zhang, Yubo, Jiang, Xuanyuan, Wang, Xiao, Zhang, Xiaozhe, Ryan, Philip J., Kim, Jong-Woo, Bowlan, John, Yarotski, Dmitry A, Li, Yuelin, DiChiara, Anthony D., Cheng, Xuemei, Wu, Xifan, Xu, Xiaoshan
Publikováno v:
Phys. Rev. B 95, 094110 (2017)
Elastic strain is potentially an important approach in tuning the properties of the improperly multiferroic hexagonal ferrites, the details of which have however been elusive due to the experimental difficulties. Employing the method of restrained th
Externí odkaz:
http://arxiv.org/abs/1610.00073
Autor:
Peters, Lars, Ghosh, Saurabh, Sanyal, Biplab, van Dijk, Chris, Bowlan, John, de Heer, Walt, Delin, Anna, Di Marco, Igor, Eriksson, Olle, Katsnelson, Mikhail I., Johansson, Börje, Kirilyuk, Andrei
Publikováno v:
Scientific Reports 6, 19676 (2016)
Here we follow, both experimentally and theoretically, the development of magnetism in Tb clusters from the atomic limit, adding one atom at a time. The exchange interaction is, surprisingly, observed to drastically increase compared to that of bulk,
Externí odkaz:
http://arxiv.org/abs/1605.09544
Autor:
Bowlan, John, Harding, Dan J., Jalink, Jeroen, Kirilyuk, Andrei, Meijer, Gerard, Fielicke, André
Small lanthanide clusters have interesting magnetic properties, but their structures are unknown. We have identified the structures of small terbium cluster cations Tb (n = 5-9) in the gas phase, by analysis of their vibrational spectra. The spectra
Externí odkaz:
http://arxiv.org/abs/1211.6309
Publikováno v:
Phys. Rev. Lett. 107, 057203 (2011)
The cobalt and iron clusters CoN, FeN (20 < N < 150) measured in a cryogenic molecular beam are found to be bistable with magnetic moments per atom both {\mu}N/N 2{\mu}B in the ground states and {\mu}N */N {\mu}B in the metastable excited states (for
Externí odkaz:
http://arxiv.org/abs/1012.4133
Publikováno v:
Phys. Rev. Lett. 106 043401 (2011)
Cryogenic cluster beam experiments have provided crucial insights into the evolution of the metallic state from the atom to the bulk. Surprisingly, one of the most fundamental metallic properties, the ability of a metal to efficiently screen electric
Externí odkaz:
http://arxiv.org/abs/1010.5114
Electric deflections of niobium clusters in molecular beams show that they have permanent electric dipole moments at cryogenic temperatures but not higher temperatures, indicating that they are ferroelectric. Detailed analysis shows that the deflecti
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610891
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