Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Chang, Po Hao"'
Autor:
Bhandari, Hari, Chang, Po-Hao, Regmi, Resham Babu, Márkus, Bence Gábor, Forró, László, Mitchell, J. F., Mazin, I. I., Ghimire, Nirmal J.
The kagome lattice, known for its strong frustration in two dimensions, hosts a variety of exotic magnetic and electronic states. A variation of this geometry, where the triangular motifs are twisted to further reduce symmetry, has recently revealed
Externí odkaz:
http://arxiv.org/abs/2410.11636
Autor:
Chang, Po-Hao, Mazin, Igor I.
Mn-based transition metal Zintl compounds in the 14-1-11 phase are known to host complex atomic and magnetic structures owing to their intricate crystal structure. Among them, Ba14MnBi11 stands out as one of the least understood compounds, with exper
Externí odkaz:
http://arxiv.org/abs/2407.16019
Autor:
Chang, Po-Hao, Mazin, Igor I.
The classical Ising model on the triangular lattice (we will call it I-3 model below), while simple in the nearest-neighbors (NN) only approximation, becomes increasingly richer and more complex when further interactions are incorporated. However, th
Externí odkaz:
http://arxiv.org/abs/2312.06859
Autor:
Olmos, Rubyann, Chang, Po-Hao, Mishra, Prakash, Zope, Rajendra R., Baruah, Tunna, Petrovic, Cedomir, Liu, Yu, Singamaneni, Srinivasa R.
Recently, the pressure has been used as external stimuli to induce structural and magnetic phase transitions in many layered quantum materials whose layers are linked by van der Waals forces. Such materials with weakly held layers allow relatively ea
Externí odkaz:
http://arxiv.org/abs/2302.03170
Recently proposed local self-interaction correction (LSIC) method [Zope, R. R. et al., J. Chem. Phys. 151, 214108 (2019)] is a one-electron self-interaction-correction (SIC) method that uses an iso-orbital indicator to apply the SIC at each point in
Externí odkaz:
http://arxiv.org/abs/2211.03931
We review two common numerical schemes for Coulomb potential evaluation that differ only in their radial part of the solutions in the spherical harmonic expansion (SHE). One is based on finite-difference method (FDM) while the other is based on the G
Externí odkaz:
http://arxiv.org/abs/2205.11646
Autor:
Mishra, Prakash, Yamamoto, Yoh, Chang, Po-Hao, Nguyen, Duyen B., Peralta, Juan E., Baruah, Tunna, Zope, Rajendra R.
Publikováno v:
J. Phys. Chem. A 2022, 126, 12, 1923-1935
We examine the role of self-interaction errors (SIE) removal on the evaluation of magnetic exchange coupling constants. In particular we analyze the effect of scaling down the self-interaction-correction (SIC) for three {\em non-empirical} density fu
Externí odkaz:
http://arxiv.org/abs/2205.05801
Autor:
Olmos, Rubyann, Alam, Shamsul, Chang, Po Hao, Gandha, Kinjal, Nlebedim, Ikenna C., Cole, Andrew, Tafti, Fazel, Zope, Rajendra, Singamaneni, Srinivasa R.
The van der Waals class of materials offer an approach to two-dimensional magnetism as their spin fluctuations can be tuned upon exfoliation of layers. Moreover, it has recently been shown that spin-lattice coupling and long-range magnetic ordering c
Externí odkaz:
http://arxiv.org/abs/2112.00233
Autor:
Fang, Wuzhang, Raeliarijaona, Aldo, Chang, Po-Hao, Kovalev, Alexey A., Belashchenko, Kirill D.
Publikováno v:
Phys. Rev. Materials 5, 054401 (2021)
We study realizations of spirals and skyrmions in two-dimensional antiferromagnets with a triangular lattice on an inversion-symmetry-breaking substrate. As a possible material realization, we investigate the adsorption of transition-metal atoms (Cr,
Externí odkaz:
http://arxiv.org/abs/2102.11246
Autor:
Khan, Mojammel A., Chang, Po-Hao, Ghimire, Nirmal, Bretz-Sullivan, Terence M., Bhattacharya, Anand, Jiang, Jidong S., Singleton, John, Mitchell, John F.
Publikováno v:
Phys. Rev. B 101, 245113 (2020)
A study of the Fermi surface of the putative topological semimetal Pd$_3$Pb has been carried out using Shubnikov-de Haas (SdH) oscillations measured in fields of up to 60 T. Pd$_3$Pb has garnered attention in the community due to a peculiar Fermi sur
Externí odkaz:
http://arxiv.org/abs/2006.01871