JOPSS - Search Results

In high-performance thermoelectric materials, there are two main low thermal conductivity mechanisms: the phonon anharmonic and phonon scattering resulting from the dynamic disorder, which have been successfully revealed by inelastic neutron scattering. Using neutron scattering and ab initio calculations, we report here a mechanism of static local structure distortion combined with phonon-anharmonic-induced ultralow lattice thermal conductivity in -MgAgSb. Since the transverse acoustic phonons are almost fully scattered by the intrinsic distorted rocksalt sublattice in this compound, the heat is mainly transported by the longitudinal acoustic phonons. The ultralow thermal conductivity in -MgAgSb is attributed to its atomic dynamics being altered by the structure distortion, which presents a possible microscopic route to enhance the performance of similar thermoelectric materials.

Journal Articles

Coexistence of ferromagnetic and stripe-type antiferromagnetic spin fluctuations in YFe $_{2}$ Ge $_{2}$

Wo, H.*; Wang, Q.*; Shen, Y.*; Zhang, X.*; Hao, Y.*; Feng, Y.*; Shen, S.*; He, Z.*; Pan, B.*; Wang, W.*; et al.

Physical Review Letters, 122(21), p.217003_1 - 217003_5, 2019/05

https://doi.org/10.1103/PhysRevLett.122.217003

Times Cited Count：5 Percentile：42.69(Physics, Multidisciplinary)

Journal Articles

Uniaxial pressure effect on the magnetic ordered moment and transition temperatures in BaFe $_{2-x}$ T $_{x}$ As $_{2}$ ( = Co,Ni)

Tam, D. M.*; Song, Y.*; Man, H.*; Cheung, S. C.*; Yin, Z.*; Lu, X.*; Wang, W.*; Frandsen, B. A.*; Liu, L.*; Gong, Z.*; et al.

Physical Review B, 95(6), p.060505_1 - 060505_6, 2017/02

https://doi.org/10.1103/PhysRevB.95.060505

Times Cited Count：23 Percentile：71.49(Materials Science, Multidisciplinary)

Journal Articles

Dispersing zwitterions into comb polymers for nonviral transfection; Experiments and molecular simulation

Ghobadi, A. F.*; Letteri, R.*; Parelkar, S. S.*; Zhao, Y.; Chan-Seng, D.*; Emrick, T.*; Jayaraman, A.*

Biomacromolecules, 17(2), p.546 - 557, 2016/02

https://doi.org/10.1021/acs.biomac.5b01462

Times Cited Count：15 Percentile：55.55(Biochemistry & Molecular Biology)

Journal Articles

Coherent control of single spins in silicon carbide at room temperature

Widmann, M.*; Lee, S.-Y.*; Rendler, T.*; Son, N. T.*; Fedder, H.*; Paik, S.*; Yang, L.-P.*; Zhao, N.*; Yang, S.*; Booker, I.*; et al.

Nature Materials, 14(2), p.164 - 168, 2015/02

https://doi.org/10.1038/nmat4145

Times Cited Count：435 Percentile：99.55(Chemistry, Physical)

Journal Articles

Dynamics of energetic particle driven modes and MHD modes in wall-stabilized high- plasmas on JT-60U and DIII-D

Matsunaga, Go; Okabayashi, Michio*; Aiba, Nobuyuki; Boedo, J. A.*; Ferron, J. R.*; Hanson, J. M.*; Hao, G. Z.*; Heidbrink, W. W.*; Holcomb, C. T.*; In, Y.*; et al.

Nuclear Fusion, 53(12), p.123022_1 - 123022_13, 2013/12

https://doi.org/10.1088/0029-5515/53/12/123022

Times Cited Count：6 Percentile：26.2(Physics, Fluids & Plasmas)

Journal Articles

Spatio-temporal evolution of the LH and HL transitions

Miki, Kazuhiro; Diamond, P. H.*; Fedorczak, N.*; Grcan, . D.*; Malkov, M.*; Lee, C.*; Kosuga, Yusuke*; Tynan, G. R.*; Xu, G. S.*; Estrada, T.*; et al.

Nuclear Fusion, 53(7), p.073044_1 - 073044_10, 2013/07

https://doi.org/10.1088/0029-5515/53/7/073044

Times Cited Count：24 Percentile：72.36(Physics, Fluids & Plasmas)

Understanding the LH and HL transitions is crucial to successful ITER operation. In this paper we present novel theoretical and modelling study results on the spatio-temporal dynamics of the transition. We place a special emphasis on the role of zonal flows and the micromacro connection between dynamics and the power threshold dependences. The model studied evolves five coupled fields in time and one space dimension, in simplified geometry. The content of this paper is (a) the model fundamentals and the space-time evolution during the LIH transition, (b) the physics origin of the well-known B-drift asymmetry in power threshold, (c) the role of heat avalanches in the intrinsic variability of the LH transition, (d) the dynamics of the HL back transition and the physics of hysteresis.

Journal Articles

Anisotropic two-dimensional electron gas at the LaAlO $_{3}$ /SrTiO $_{3}$ (110) interface

Annadi, A.*; Zhang, Q.*; Renshaw Wang, X.*; Tuzla, N.*; Gopinadhan, K.*; L, W. M.*; Roy Barman, A.*; Liu, Z. Q.*; Srivastava, A.*; Saha, S.*; et al.

Nature Communications (Internet), 4, p.1838_1 - 1838_7, 2013/05

https://doi.org/10.1038/ncomms2804

Times Cited Count：97 Percentile：94.65(Multidisciplinary Sciences)

Journal Articles

Dynamics of energetic particle driven modes and MHD modes in wall-stabilized high beta plasmas on JT-60U and DIII-D

Matsunaga, Go; Okabayashi, Michio*; Aiba, Nobuyuki; Boedo, J. A.*; Ferron, J. R.*; Hanson, J. M.*; Hao, G. Z.*; Heidbrink, W. W.*; Holcomb, C. T.*; In, Y.*; et al.

Proceedings of 24th IAEA Fusion Energy Conference (FEC 2012) (CD-ROM), 8 Pages, 2013/03

http://www-naweb.iaea.org/napc/physics/FEC/FEC2012/papers/232_EX51.pdf

http://www-naweb.iaea.org/napc/physics/FEC/FEC2012/presentations/232_EX51.pdf

Journal Articles

Interface properties of Ag and Au/graphene heterostructures studied by micro-Raman spectroscopy

Entani, Shiro; Sakai, Seiji; Matsumoto, Yoshihiro; Naramoto, Hiroshi*; Hao, T.; Maeda, Yoshihito

Japanese Journal of Applied Physics, 50(4), p.04DN03_1 - 04DN03_5, 2011/04

https://doi.org/10.1143/JJAP.50.04DN03

Times Cited Count：4 Percentile：19.03(Physics, Applied)

Journal Articles

Interface properties of metal/graphene heterostructures studied by micro-Raman spectroscopy

Entani, Shiro; Sakai, Seiji; Matsumoto, Yoshihiro; Naramoto, Hiroshi*; Hao, T.; Maeda, Yoshihito

Journal of Physical Chemistry C, 114(47), p.20042 - 20048, 2010/11

https://doi.org/10.1021/jp106188w

Times Cited Count：37 Percentile：70.7(Chemistry, Physical)