Zobrazeno 1 - 10
of 1 188
pro vyhledávání: '"Oh Y-S."'
Autor:
Kim, Jae Wook, Artyukhin, S., Mun, E. D., Jaime, M., Harrison, N., Hansen, A., Yang, J. J., Oh, Y. S., Vanderbilt, D., Zapf, V. S., Cheong, S. -W.
Publikováno v:
Phys. Rev. Lett. 115, 137201 (2015)
We report the discovery of a metamagnetic phase transition in a polar antiferromagnet Ni$_3$TeO$_6$ that occurs at 52 T. The new phase transition accompanies a colossal magnetoelectric effect, with a magnetic-field-induced polarization change of 0.3
Externí odkaz:
http://arxiv.org/abs/1509.04715
Layered 5d transition metal dichalcogenide (TMD) IrTe2 is distinguished from the traditional TMDs (such as NbSe2) by the existence of multiple CDW-like stripe phases and superconductivity at low temperatures. Despite of intensive studies, there is st
Externí odkaz:
http://arxiv.org/abs/1412.2846
Autor:
Ravichandran, J., Serrao, C. R., Efetov, D. K., Yi, D., Oh, Y. S., Cheong, S. -W., Ramesh, R., Kim, P.
Publikováno v:
J. Phys.: Condens. Matter 28 505304 (2016)
Electric field effect (EFE) controlled magnetoelectric transport in thin films of undoped and La-doped Sr$_{2}$IrO$_{4}$ (SIO) were investigated under the action of ionic liquid gating. Despite large carrier density modulation, the temperature depend
Externí odkaz:
http://arxiv.org/abs/1312.7015
Autor:
Johnson, R. D., Cao, K., Chapon, L. C., Fabrizi, F., Perks, N., Manuel, P., Yang, J. J., Oh, Y. S., Cheong, S-W., Radaelli, P. G.
Structural and magnetic chiralities are found to coexist in a small group of materials in which they produce intriguing phenomenologies such as the recently discovered skyrmion phases. Here, we describe a previously unknown manifestation of this inte
Externí odkaz:
http://arxiv.org/abs/1306.3854
Multiferroicity with coexisting isotropic and anisotropic spins in Ca$_{3}$Co$_{2-x}$Mn$_{x}$O$_{6}$
Autor:
Kim, Jae Wook, Kamiya, Y., Mun, E. D., Jaime, M., Harrison, N., Thompson, J. D., Kiryukhin, V., Yi, H. T., Oh, Y. S., Cheong, S. -W., Batista, C. D., Zapf, V. S.
Publikováno v:
Phys. Rev. B 89, 060404(R) (2014)
We study magnetic and multiferroic behavior in Ca$_3$Co$_{2-x}$Mn$_{x}$O$_6$ ($x \sim$0.97) by high-field measurements of magnetization ($M$), magnetostriction ($L$($H$)/$L$), electric polarization ($P$), and magnetocaloric effect. This study also gi
Externí odkaz:
http://arxiv.org/abs/1305.6892
Autor:
Choi, Y. J., Lee, N., Sharma, P. A., Kim, S. B., Vajk, O. P., Lynn, J. W., Oh, Y. S., Cheong, S-W.
Publikováno v:
Phys. Rev. Lett. 110, 157202 (2013)
Although abundant research has focused recently on the quantum criticality of itinerant magnets, critical phenomena of insulating magnets in the vicinity of critical endpoints (CEP's) have rarely been revealed. Here we observe an emergent CEP at 2.05
Externí odkaz:
http://arxiv.org/abs/1304.4712
Autor:
Johnson, R. D., Barone, P., Bombardi, A., Bean, R. J., Picozzi, S., Radaelli, P. G., Oh, Y. S., Cheong, S-W., Chapon, L. C.
Publikováno v:
R. D. Johnson et al., PRL 110, 217206 (2013)
Magnetic domains at the surface of a ferroelectric monodomain BiFeO3 single crystal have been imaged by hard X-ray magnetic scattering. Magnetic domains up to several hundred microns in size have been observed, corresponding to cycloidal modulations
Externí odkaz:
http://arxiv.org/abs/1303.6987
Publikováno v:
Phys. Rev. B 87 (2013) 184109
The presence of ferroelectricity in hexagonal (h-)InMnO3 has been highly under debate. The results of our comprehensive experiments of low-temperature (T) polarization, TEM and HAADF-STEM on well-controlled h-InMnO3 reveal that the ground state is fe
Externí odkaz:
http://arxiv.org/abs/1303.5606
Publikováno v:
Phys. Rev. B, 86, 020403(R) (2012)
In bismuth ferrite (BiFeO3), antiferromagnetic and ferroelectric order coexist at room temperature, making it of particular interest for studying magnetoelectric coupling. The mutual control of magnetic and electric properties is very useful for a wi
Externí odkaz:
http://arxiv.org/abs/1207.4799
We discovered that perovskite (Ba,La)SnO3 can have excellent carrier mobility even though its band gap is large. The Hall mobility of Ba0.98La0.02SnO3 crystals with the n-type carrier concentration of \sim 8-10\times10 19 cm-3 is found to be \sim 103
Externí odkaz:
http://arxiv.org/abs/1204.4657