Origin of the hardness in the monolayer nanographene
Yükleniyor...
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this paper, we investigated the lattice distortion displacement effects (LDDE) on magnetizations versus temperature in a monolayer nanographene (MLNG) by using effective field theory developed by Kaneyoshi. To obtain the LDDE, we used the twinning angle (theta) of the zigzag edge of the MLNG and obtain the M-T curves for theta = 10 degrees-180 degrees with 10 steps. We find that MLNG has a minimum Curie temperature (T-C(min) = 2.738) for a certain critical twinning angle (theta(CTA) = 130) of the zigzag edge of the MLNG. The T-C increases (T-C > T-C(min)) as the theta increases or decreases from the theta(CTA) = 130 degrees (both theta < theta(CTA) and at theta > theta(CTA) cases). Since the hardness is directly proportional with the T-C, the hardness of the MLNG increases for both theta < theta(CTA) and at theta > theta(CTA) cases. Thus, the MLNG has a resistance against to the any changing in the theta(CTA). Therefore, we suggest that the origin of the hardness in nanographene is theta(CTA). (C) 2019 Elsevier B.V. All rights reserved.
Açıklama
YILDIZ, Yasin Gokturk/0000-0002-1391-1888
Anahtar Kelimeler
Nanographene, Monolayer nanographene, Hardness, Twinning angle, Curie temperature, Effective field theory
Kaynak
Physics Letters A
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
383
Sayı
19
Künye
closedAccess
