Zobrazeno 1 - 10
of 309
pro vyhledávání: '"P. Bowlan"'
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:
Sirica, N., Tobey, R. I., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shen, B., Yarotski, D. A., Bowlan, P., Trugman, S. A., Zhu, J. -X., Dai, Y. M., Azad, A. K., Ni, N., Qiu, X. G., Taylor, A. J., Prasankumar, R. P.
Publikováno v:
Phys. Rev. Lett. 122, 197401 (2019)
We investigate polarization-dependent ultrafast photocurrents in the Weyl semimetal TaAs using terahertz (THz) emission spectroscopy. Our results reveal that highly directional, transient photocurrents are generated along the non-centrosymmetric c-ax
Externí odkaz:
http://arxiv.org/abs/1811.02723
Autor:
Bowlan, P., Bowlan, J., Trugman, S. A., Aguilar, R. Valdes, Qi, J., Liu, X., Furdyna, J., Dobrowolska, M., Taylor, A. J., Yarotski, D. A., Prasankumar, R. P.
Intense, single-cycle terahertz (THz) pulses offer a promising approach for understanding and controlling the properties of a material on an ultrafast time scale. In particular, resonantly exciting phonons leads to a better understanding of how they
Externí odkaz:
http://arxiv.org/abs/1610.00871
Autor:
Bowlan, P., Trugman, S. A., Bowlan, J., Zhu, J. -X., Hur, N. J., Taylor, A. J., Yarotski, D. A., Prasankumar, R. P.
Publikováno v:
Phys. Rev. B 94, 100404 (2016)
We demonstrate a new approach for directly measuring the ultrafast energy transfer between elec- trons and magnons, enabling us to track spin dynamics in an antiferromagnet (AFM). In multiferroic HoMnO3, optical photoexcitation creates hot electrons,
Externí odkaz:
http://arxiv.org/abs/1602.03872
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
Akademický článek
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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:
Bowlan, P., Trugman, S. A., Wang, X., Dai, Y. M., Cheong, S. -W., Bauer, E. D., Taylor, A. J., Yarotski, D. A., Prasankumar, R. P.
We investigate spin dynamics in the antiferromagnetic (AFM) multiferroic TbMnO3 using optical- pump, terahertz (THz)-probe spectroscopy. Photoexcitation results in a broadband THz transmission change, with an onset time of 25 ps at 6 K that becomes f
Externí odkaz:
http://arxiv.org/abs/1608.05991
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:
Chikara, S., Singleton, J., Bowlan, J., Yarotski, D. A., Lee, N., Choi, H. Y., Choi, Y. J., Zapf, V. S.
We report electric polarization and magnetization measurements in single crystals of double perovskite Lu2MnCoO6 using pulsed magnetic fields and optical second harmonic generation (SHG) in DC magnetic fields. we observe well-resolved magnetic field-
Externí odkaz:
http://arxiv.org/abs/1604.07802