Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Kurdak, Çağlıyan"'
Autor:
Eo, Yun Suk, Rakoski, Alexa, Sinha, Shriya, Mihaliov, Dmitri, Fuhrman, Wesley T., Saha, Shanta R., Rosa, Priscila F. S., Fisk, Zachary, Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Chamorro, Juan R., Koohpayeh, Seyed M., McQueen, Tyrel M., Kang, Boyoun, Song, Myung-suk, Cho, Beongki, Fuhrer, Michael S., Paglione, Johnpierre, Kurdak, Cagliyan
Publikováno v:
Phys. Rev. Materials 5, 055001 (2021)
We investigate the roles of disorder on low-temperature transport in SmB$_6$ crystals grown by both the Al flux and floating zone methods. We used the inverted resistance method with Corbino geometry to investigate whether low-temperature variations
Externí odkaz:
http://arxiv.org/abs/2011.08923
Autor:
Eo, Yun Suk, Wolgast, Steven, Rakoski, Alexa, Mihaliov, Dmitri, Kang, Boyoun, Song, Myung-suk, Cho, Beongki, Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Fisk, Zachary, Saha, Shanta, Wang, Xiangfeng, Paglione, Johnpierre, Kurdak, Cagliyan
Publikováno v:
Phys. Rev. B 101, 155109 (2020)
After the theoretical prediction that SmB$_6$ is a topological Kondo insulator, there has been an explosion of studies on the SmB$_6$ surface. However, there is not yet an agreement on even the most basic quantities such as the surface carrier densit
Externí odkaz:
http://arxiv.org/abs/1911.06711
A well-known feature in transport data of the topological Kondo insulator SmB$_6$ is the sign change in the Hall coefficient at 65 K. Carriers in SmB$_6$ are known to be negative, but above 65 K, the Hall sign suggests that the carriers are positive.
Externí odkaz:
http://arxiv.org/abs/1907.09436
Autor:
Eo, Yun Suk, Rakoski, Alexa, Lucien, Juniar, Mihaliov, Dmitri, Kurdak, Cagliyan, Rosa, Priscila Ferrari Silveira, Kim, Dae-Jeong, Fisk, Zachary
Publikováno v:
Proceedings of the National Academy of Sciences Jun 2019, 116 (26) 12638-12641
We used the inverted resistance method to extend the bulk resistivity of SmB$_{6}$ to a regime where the surface conduction overwhelms the bulk. Remarkably, the bulk resistivity shows an intrinsic thermally activated behavior that changes ten orders
Externí odkaz:
http://arxiv.org/abs/1803.00959
Publikováno v:
Phys. Rev. B 95, 195133 (2017)
We present a new model to explain the difference between the transport and spectroscopy gaps in samarium hexaboride (SmB$_6$), which has been a mystery for some time. We propose that SmB$_6$ can be modeled as an intrinsic semiconductor with a depleti
Externí odkaz:
http://arxiv.org/abs/1702.02619
The coupling of charge carrier motion and pseudospin via chirality for massless Dirac fermions in monolayer graphene has generated dramatic consequences, such as the unusual quantum Hall effect and Klein tunneling. In bilayer graphene, charge carrier
Externí odkaz:
http://arxiv.org/abs/1611.05180
Autor:
Ozturk, Teoman, Field III, Richard L., Eo, Yun Suk, Wolgast, Steven, Sun, Kai, Kurdak, Cagliyan
Publikováno v:
J. Phys. Commun. 1 (2017) 035005
In an ideal topological insulator, the helical spin structure of surface electrons suppresses backscattering and thus can enhance surface conductivity. We investigate the effect of perpendicular magnetic field on the spin structure of electrons at th
Externí odkaz:
http://arxiv.org/abs/1412.1007
Autor:
Eo, Yun Suk, Wolgast, Steven, Ozturk, Teoman, Li, Gang, Xiang, Ziji, Tinsman, Colin, Asaba, Tomoya, Yu, Fan, Lawson, Benjamin, Allen, James W., Sun, Kai, Li, Lu, Kurdak, Cagliyan, Kim, Dae-Jeong, Fisk, Zachary
Utilizing Corbino disc structures, we have examined the magnetic field response of resistivity for the surface states of SmB6 on different crystalline surfaces at low temperatures. Our results reveal a hysteretic behavior whose magnitude depends on t
Externí odkaz:
http://arxiv.org/abs/1410.7430
Autor:
Wolgast, Steven, Eo, Yun Suk, Ozturk, Teoman, Li, Gang, Xiang, Ziji, Tinsman, Colin, Asaba, Tomoya, Lawson, Ben, Yu, Fan, Allen, J. W., Sun, Kai, Li, Lu, Kurdak, Cagliyan, Kim, Dae-Jeong, Fisk, Zachary
Publikováno v:
Phys. Rev. B 92, 115110 (2015)
The recent conjecture of a topologically-protected surface state in SmB$_6$ and the verification of robust surface conduction below 4 K have prompted a large effort to understand the surface states. Conventional Hall transport measurements allow curr
Externí odkaz:
http://arxiv.org/abs/1409.8199
We present nanoscale explosives as a novel type of dark matter detector and study the ignition properties. When a Weakly Interacting Massive Particle WIMP from the Galactic Halo elastically scatters off of a nucleus in the detector, the small amount
Externí odkaz:
http://arxiv.org/abs/1403.8115