Search Results - "Gospodinov, Marin"

Bulk photovoltaic effect modulated by ferroelectric polarization back-switching by Sheng, Yunwei, Fina, Ignasi, Gospodinov, Marin, Fontcuberta, Josep

“…Short-circuit photocurrent due to bulk photovoltaic effect displays an oscillatory dependence on the polarization state of light. Here, we explore how the…”
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Switchable photovoltaic response in hexagonal LuMnO3 single crystals by Sheng, Yunwei, Fina, Ignasi, Gospodinov, Marin, Fontcuberta, Josep

“…Hexagonal manganites, such as h-LuMnO3, are ferroelectric with its polar axis along the hexagonal axis and have a narrow electronic bandgap (≈1.5 eV). Using Pt…”
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Magnetoelectric effect and phase transitions in CuO in external magnetic fields by Wang, Zhaosheng, Qureshi, Navid, Yasin, Shadi, Mukhin, Alexander, Ressouche, Eric, Zherlitsyn, Sergei, Skourski, Yurii, Geshev, Julian, Ivanov, Vsevolod, Gospodinov, Marin, Skumryev, Vassil

“…Apart from being so far the only known binary multiferroic compound, CuO has a much higher transition temperature into the multiferroic state, 230 K, than any…”
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Robustness of a Topologically Protected Surface State in a Sb2Te2Se Single Crystal by Lee, Chao-Kuei, Cheng, Cheng-Maw, Weng, Shih-Chang, Chen, Wei-Chuan, Tsuei, Ku-Ding, Yu, Shih-Hsun, Chou, Mitch Ming-Chi, Chang, Ching-Wen, Tu, Li-Wei, Yang, Hung-Duen, Luo, Chih-Wei, Gospodinov, Marin M.

“…A topological insulator (TI) is a quantum material in a new class with attractive properties for physical and technological applications. Here we derive the…”
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Anisotropic Optical Response of WTe2 Single Crystals Studied by Ellipsometric Analysis by Buchkov, Krastyo, Todorov, Rosen, Terziyska, Penka, Gospodinov, Marin, Strijkova, Velichka, Dimitrov, Dimitre, Marinova, Vera

“…In this paper we report the crystal growth conditions and optical anisotropy properties of Tungsten ditelluride (WTe2) single crystals. The chemical vapor…”
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Femtosecond time-evolution of mid-infrared spectral line shapes of Dirac fermions in topological insulators by Yeh, Tien-Tien, Tu, Chien-Ming, Lin, Wen-Hao, Cheng, Cheng-Maw, Tzeng, Wen-Yen, Chang, Chen-Yu, Shirai, Hideto, Fuji, Takao, Sankar, Raman, Chou, Fang-Cheng, Gospodinov, Marin M., Kobayashi, Takayoshi, Luo, Chih-Wei

“…Mid-infrared (MIR) light sources have much potential in the study of Dirac-fermions (DFs) in graphene and topological insulators (TIs) because they have a low…”
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Robustness of a Topologically Protected Surface State in a Sb 2 Te 2 Se Single Crystal by Lee, Chao-Kuei, Cheng, Cheng-Maw, Weng, Shih-Chang, Chen, Wei-Chuan, Tsuei, Ku-Ding, Yu, Shih-Hsun, Chou, Mitch Ming-Chi, Chang, Ching-Wen, Tu, Li-Wei, Yang, Hung-Duen, Luo, Chih-Wei, Gospodinov, Marin M

“…A topological insulator (TI) is a quantum material in a new class with attractive properties for physical and technological applications. Here we derive the…”
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Proof of the elusive high-temperature incommensurate phase in CuO by spherical neutron polarimetry by Qureshi, Navid, Ressouche, Eric, Mukhin, Alexander, Gospodinov, Marin, Skumryev, Vassil

“…CuO is the only known binary multiferroic compound, and due to its high transition temperature into the multiferroic state, it has been extensively studied. In…”
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Ultrafast dynamics of coherent optical phonon in a thin film of Bi3Se2Te by Ko, Ying-Kuan, Huang, Yan-Hao, Huu Le, Phuoc, Luo, Chih-Wei, Gospodinov, Marin Mirtchev, Kobayashi, Takayoshi, Yabushita, Atsushi

“…We have performed ultrafast time-resolved spectroscopy of transient absorption for a thin film of Bi3Se2Te, in which recent study result implies the existence…”
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X-ray diffraction topography investigation of the core in Bi12SiO20 crystals by Milenov, Teodor I, Rafailov, Peter M, Botev, Pavel A, Gospodinov, Marin M

“…The core in a large Bi12SiO20 crystal as well as the regions free of optical inhomogenities was examined by X-ray double-crystal diffraction topography. It was…”
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Magnetic frustration in an iron-based Cairo pentagonal lattice by Ressouche, E, Simonet, V, Canals, B, Gospodinov, M, Skumryev, V

“…The Fe3+ lattice in the Bi2Fe4O9 compound is found to materialize the first analogue of a magnetic pentagonal lattice. Because of its odd number of bonds per…”
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Chemical vapor deposition growth of bilayer graphene via altering gas flux geometry by Petrov, Stefan, Rafailov, Peter M., Marinova, Vera, Lin, Shiuan-Huei, Lai, Yi-Chun, Yu, Peichen, Chi, Gou-Chung, Dimitrov, Dimitre Z., Karashanova, Daniela, Gospodinov, Marin

“…Graphene films with high content of bilayer graphene are obtained by chemical vapor deposition technique on copper (Cu) foil by means of suitably designing the…”
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Dimer physics in the frustrated Cairo pentagonal antiferromagnet Bi 2 Fe 4 O 9 by Beauvois, Ketty, Simonet, Virginie, Petit, Sylvain, Robert, Julien, Bourdarot, Frédéric, Gospodinov, Marin, Mukhin, A. A., Ballou, Rafik, Skumryev, Vassil, Ressouche, Eric

“…Abstract only…”
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Structural and electronic phase transition in Bi2Se2.1Te0.9 under pressure by Tseng, Yu-Chin, Lin, Chih-Ming, Jian, Sheng-Rui, Le, Phuoc Huu, Gospodinov, Marin M., Marinova, Vera, Dimitrov, Dimitre Z., Luo, Chih-Wei, Wu, Kuang-Hsiung, Zhang, Dong-Zhou, Juang, Jenh-Yih

“…The phase evolution of Bi2Se2.1Te0.9 driven by the applied external pressure at ambient temperature was investigated in-situ with pressure up to 30.0(2) GPa…”
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The structural state of lead-based relaxor ferroelectrics under pressure by Mihailova, B., Angel, R. J., Maier, B. J., Welsch, A., Jing Zhao, Gospodinov, M., Bismayer, U.

“…The exceptional properties of lead-based perovskite-type (ABO 3 ) relaxor ferroelectrics are due to their structural inhomogeneities. At ambient conditions,…”
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Octahedral tilting in Pb-based relaxor ferroelectrics at high pressure by Maier, Bernd J., Angel, Ross J., Marshall, William G., Mihailova, Boriana, Paulmann, Carsten, Engel, Jens M., Gospodinov, Marin, Welsch, Anna-Maria, Petrova, Dimitrina, Bismayer, Ulrich

“…We have employed a combination of powder neutron diffraction and single‐crystal synchrotron X‐ray diffraction to characterize the pressure‐induced phase…”
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Vibrational frequencies of the impurity-centred oxygen tetrahedra in sillenites by Kovács, László, Capelletti, Rosanna, Gospodinov, Marin

“…Fundamental and multi-mode transitions of the tetrahedral unit modes (A 1 and F 2) in Bi 12SiO 20 (BSO), Bi 12GeO 20 (BGO), and Bi 12TiO 20 (BTO) sillenite…”
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Photorefractive and photochromic properties of ruthenium-doped Bi12SiO20 by Ramaz, François, Rakitina, Ludmila, Gospodinov, Marin, Briat, Bernard

“…Ruthenium can easily be incorporated into Bi12SiO20 (BSO) and an unusually high (1.3cm−1) photorefractive gain was measured in the diffusion regime with a…”
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Electronic transport on doped La 0,6D 0,4MnO 3 ceramic manganites by Antunes, Arlei B., Gospodinov, Marin, Baibich, Mario N.

“…We have studied magnetotransport in a set of nanocrystalline samples of composition La 0,6D 0,4MnO 3, where the divalent ion is changed. Magnetization results…”
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Electronic transport on doped La0,6D0,4MnO3 ceramic manganites by Antunes, Arlei B., Gospodinov, Marin, Baibich, Mario N.

“…We have studied magnetotransport in a set of nanocrystalline samples of composition La0,6D0,4MnO3, where the divalent ion is changed. Magnetization results…”
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