The Experts below are selected from a list of 57981 Experts worldwide ranked by ideXlab platform
A Imamoglu - One of the best experts on this subject based on the ideXlab platform.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable MoSe_{2}/CrBr_{3} heterostructure. The high quality of the interface leads to a giant zero-field splitting of the K and K^{'} valley excitons in MoSe_{2}, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the CrBr_{3} magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable ${\mathrm{MoSe}}_{2}/{\mathrm{CrBr}}_{3}$ heterostructure. The high quality of the interface leads to a giant zero-field splitting of the $K$ and ${K}^{\ensuremath{'}}$ valley excitons in ${\mathrm{MoSe}}_{2}$, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the ${\mathrm{CrBr}}_{3}$ magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.
Tony F Heinz - One of the best experts on this subject based on the ideXlab platform.
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probing the dynamics of the metallic to semiconducting structural phase transformation in mos2 crystals
Nano Letters, 2015Co-Authors: Yinsheng Guo, Dezheng Sun, Bin Ouyang, Archana Raja, Jun Song, Tony F Heinz, Louis E BrusAbstract:We have investigated the phase transformation of bulk MoS2 crystals from the metastable metallic 1T/1T′ phase to the thermodynamically stable semiconducting 2H phase. The metastable 1T/1T′ material was prepared by Li intercalation and deintercalation. The thermally driven kinetics of the phase transformation were studied with in situ Raman and Optical Reflection spectroscopies and yield an activation energy of 400 ± 60 meV (38 ± 6 kJ/mol). We calculate the expected minimum energy pathways for these transformations using DFT methods. The experimental activation energy corresponds approximately to the theoretical barrier for a single formula unit, suggesting that nucleation of the phase transformation is quite local. We also report that femtosecond laser writing converts 1T/1T′ to 2H in a single laser pass. The mechanisms for the phase transformation are discussed.
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measurement of the Optical dielectric function of monolayer transition metal dichalcogenides mos 2 mo s e 2 ws 2 and ws e 2
Physical Review B, 2014Co-Authors: Alexey Chernikov, Xian Zhang, Albert F Rigosi, Heather M Hill, Arend M Van Der Zande, Daniel Chenet, En Min Shih, James Hone, Tony F HeinzAbstract:This chapter presents the complex in-plane dielectric function from 1.5 to 3 eV for monolayers of four transition metal dichalcogenides: MoSe2, WSe2, MoS2, and WS2. The results were obtained from Optical Reflection spectra using a Kramers–Kronig constrained variational analysis. From the inferred dielectric functions, we obtain the absolute absorbance of the monolayers. We also provide a comparison of the dielectric function for the monolayers with the respective bulk materials [1].
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measurement of the Optical dielectric function of monolayer transition metal dichalcogenides mos 2 mose 2 ws 2 and wse 2
Physical Review B, 2014Co-Authors: Yilei Li, Alexey Chernikov, Xian Zhang, Albert F Rigosi, Heather M Hill, Arend M Van Der Zande, Daniel Chenet, En Min Shih, James Hone, Tony F HeinzAbstract:This chapter presents the complex in-plane dielectric function from 1.5 to 3 eV for monolayers of four transition metal dichalcogenides: MoSe2, WSe2, MoS2, and WS2. The results were obtained from Optical Reflection spectra using a Kramers–Kronig constrained variational analysis. From the inferred dielectric functions, we obtain the absolute absorbance of the monolayers. We also provide a comparison of the dielectric function for the monolayers with the respective bulk materials [1].
Livio Ciorciaro - One of the best experts on this subject based on the ideXlab platform.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable MoSe_{2}/CrBr_{3} heterostructure. The high quality of the interface leads to a giant zero-field splitting of the K and K^{'} valley excitons in MoSe_{2}, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the CrBr_{3} magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable ${\mathrm{MoSe}}_{2}/{\mathrm{CrBr}}_{3}$ heterostructure. The high quality of the interface leads to a giant zero-field splitting of the $K$ and ${K}^{\ensuremath{'}}$ valley excitons in ${\mathrm{MoSe}}_{2}$, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the ${\mathrm{CrBr}}_{3}$ magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.
Takashi Taniguchi - One of the best experts on this subject based on the ideXlab platform.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable MoSe_{2}/CrBr_{3} heterostructure. The high quality of the interface leads to a giant zero-field splitting of the K and K^{'} valley excitons in MoSe_{2}, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the CrBr_{3} magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable ${\mathrm{MoSe}}_{2}/{\mathrm{CrBr}}_{3}$ heterostructure. The high quality of the interface leads to a giant zero-field splitting of the $K$ and ${K}^{\ensuremath{'}}$ valley excitons in ${\mathrm{MoSe}}_{2}$, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the ${\mathrm{CrBr}}_{3}$ magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.
Kenji Watanabe - One of the best experts on this subject based on the ideXlab platform.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable MoSe_{2}/CrBr_{3} heterostructure. The high quality of the interface leads to a giant zero-field splitting of the K and K^{'} valley excitons in MoSe_{2}, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the CrBr_{3} magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.
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observation of magnetic proximity effect using resonant Optical spectroscopy of an electrically tunable mose 2 crbr 3 heterostructure
Physical Review Letters, 2020Co-Authors: Livio Ciorciaro, Martin Kroner, Kenji Watanabe, Takashi Taniguchi, A ImamogluAbstract:van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant Optical Reflection spectroscopy to observe the magnetic proximity effect in a gate-tunable ${\mathrm{MoSe}}_{2}/{\mathrm{CrBr}}_{3}$ heterostructure. The high quality of the interface leads to a giant zero-field splitting of the $K$ and ${K}^{\ensuremath{'}}$ valley excitons in ${\mathrm{MoSe}}_{2}$, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant Optical spectroscopy to fully characterize the ${\mathrm{CrBr}}_{3}$ magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization.