Analytical modeling of experimental EELS data for free-standing graphene
Само за регистроване кориснике
2019
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
We present an analytical modeling of the experimental electron energyloss(EEL)spectroscopy data for free-standing graphene obtained by scanning transmission electron microscope using a two-dimensional, two-fluid extended hydrodynamic (eHD) model and an ab initio method [1]. An analytical expression for the probability density for energyloss of fast electrons traversing graphene under normal incidence is derived in the long wavelength limit in terms of an arbitrary form of the conductivity of graphene given in the local, i.e., frequencydependent form. The calculated probability density from both theoretical modelsis directlycompared with the EEL spectra from three independent experiments [2-4] and we find verygood agreement, especially in the case of the eHD model. Furthermore, we point out that the method of subtraction of the zero-loss peak from the experimental EEL spectra maystronglyaffect agreement with analytical models.
Извор:
Autumn Prague Meeting : COST Action CA15107 meeting : Book of Abstracts, 2019, 77-77Финансирање / пројекти:
- Функционални, функционализовани и усавршени нано материјали (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
- Croatian Government and European Union through the European Regional Development Fund - the Competitiveness and Cohesion Operational Programme [Grant No. KK.01.1.1.01.0004]
- Natural Sciences and Engineering Research Council of Canada [Grant No. 2016-03689]
Напомена:
- Autumn Prague Meeting : September 12-13, Prague, 2019.
Колекције
Институција/група
VinčaTY - CONF AU - Radović, Ivan AU - Despoja, Vito AU - Mišković, Zoran L. PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/12708 AB - We present an analytical modeling of the experimental electron energyloss(EEL)spectroscopy data for free-standing graphene obtained by scanning transmission electron microscope using a two-dimensional, two-fluid extended hydrodynamic (eHD) model and an ab initio method [1]. An analytical expression for the probability density for energyloss of fast electrons traversing graphene under normal incidence is derived in the long wavelength limit in terms of an arbitrary form of the conductivity of graphene given in the local, i.e., frequencydependent form. The calculated probability density from both theoretical modelsis directlycompared with the EEL spectra from three independent experiments [2-4] and we find verygood agreement, especially in the case of the eHD model. Furthermore, we point out that the method of subtraction of the zero-loss peak from the experimental EEL spectra maystronglyaffect agreement with analytical models. C3 - Autumn Prague Meeting : COST Action CA15107 meeting : Book of Abstracts T1 - Analytical modeling of experimental EELS data for free-standing graphene SP - 77 EP - 77 UR - https://hdl.handle.net/21.15107/rcub_vinar_12708 ER -
@conference{ author = "Radović, Ivan and Despoja, Vito and Mišković, Zoran L.", year = "2019", abstract = "We present an analytical modeling of the experimental electron energyloss(EEL)spectroscopy data for free-standing graphene obtained by scanning transmission electron microscope using a two-dimensional, two-fluid extended hydrodynamic (eHD) model and an ab initio method [1]. An analytical expression for the probability density for energyloss of fast electrons traversing graphene under normal incidence is derived in the long wavelength limit in terms of an arbitrary form of the conductivity of graphene given in the local, i.e., frequencydependent form. The calculated probability density from both theoretical modelsis directlycompared with the EEL spectra from three independent experiments [2-4] and we find verygood agreement, especially in the case of the eHD model. Furthermore, we point out that the method of subtraction of the zero-loss peak from the experimental EEL spectra maystronglyaffect agreement with analytical models.", journal = "Autumn Prague Meeting : COST Action CA15107 meeting : Book of Abstracts", title = "Analytical modeling of experimental EELS data for free-standing graphene", pages = "77-77", url = "https://hdl.handle.net/21.15107/rcub_vinar_12708" }
Radović, I., Despoja, V.,& Mišković, Z. L.. (2019). Analytical modeling of experimental EELS data for free-standing graphene. in Autumn Prague Meeting : COST Action CA15107 meeting : Book of Abstracts, 77-77. https://hdl.handle.net/21.15107/rcub_vinar_12708
Radović I, Despoja V, Mišković ZL. Analytical modeling of experimental EELS data for free-standing graphene. in Autumn Prague Meeting : COST Action CA15107 meeting : Book of Abstracts. 2019;:77-77. https://hdl.handle.net/21.15107/rcub_vinar_12708 .
Radović, Ivan, Despoja, Vito, Mišković, Zoran L., "Analytical modeling of experimental EELS data for free-standing graphene" in Autumn Prague Meeting : COST Action CA15107 meeting : Book of Abstracts (2019):77-77, https://hdl.handle.net/21.15107/rcub_vinar_12708 .