284 citations · 1.4k across the 31 of their papers we have counts for
16 papers · 1 filter
Fermi surface reconstruction and dimensional topology change in Nd-doped CeCoIn
J. Klotz, K. Götze, I. Sheikin +8
We performed low-temperature de Haas-van Alphen (dHvA) effect measurements on a CeNdCoIn series, for x = 0.02, 0.05, 0.1, and 1, down to T = 40 mK using torque magn…
Fermi surface in the absence of a Fermi liquid in the Kondo insulator SmB
M. Hartstein, W. H. Toews, Y. -T. Hsu +23
The search for a Fermi surface in the absence of a conventional Fermi liquid has thus far yielded very few potential candidates. Among promising materials are spin-frustrated Mott…
Incarnation of Majorana Fermions in Kitaev Quantum Spin Lattice
Seung-Hwan Do, Sang-Youn Park, Junki Yoshitake +10
Kitaev quantum spin liquid is a topological magnetic quantum state characterized by Majorana fermions of fractionalized spin excitations, which are identical to their own antiparti…
Unconventional Fermi surface in an insulating state
B. S. Tan, Y. -T. Hsu, B. Zeng +13
Insulators occur in more than one guise, a recent finding was a class of topological insulators, which host a conducting surface juxtaposed with an insulating bulk. Here we report…
Miniature Dilatometer Based upon an AFM Piezocantilever
Liran Wang, George M. Schmiedeshoff, David Earl Graf +4
We report on the development of a sensitive dilatometer based upon a AFM piezocantilever. This dilatometer has been tested at temperatures down to 25 mK and in magnetic fields up t…
Magnetic field tuned quantum criticality of heavy fermion system YbPtBi
E. D. Mun, S. L. Bud'ko, C. Martin +8
In this paper, we present the systematic measurements of the temperature and magnetic field dependences of the thermodynamic and transport properties of the Yb-based heavy fermion…
Multiple regions of quantum criticality in YbAgGe
G. M. Schmiedeshoff, E. D. Mun, A. W. Lounsbury +7
Dilation and thermopower measurements on YbAgGe, a heavy-fermion antiferromagnet, clarify and refine the magnetic field-temperature (H-T) phase diagram and reveal a field-induced p…
Photoemission study of (VM)O (M=Cr, Ti)
S. -K. Mo, H. -D. Kim, J. D. Denlinger +8
We present high-resolution bulk-sensitive photoemission spectra of (VM)O (M=Cr, Ti). The measurements were made for the paramagnetic metal (PM), paramagnetic in…
Magnetic Properties of a Two-Dimensional Mixed-Spin System
J. -H. Park, J. T. Culp, D. W. Hall +2
Using a Langmuir-Blodgett (LB) synthesis method, novel two-dimensional (2D) mixed-spin magnetic systems, in which each magnetic layer is both structurally and magnetically isolated…
Half-metallic antiferromagnets in double perovskites: LaAVRuO (A=Ca, Sr, and Ba)
J. H. Park, S. K. Kwon, B. I. Min
Based on the theoretical exploration of electronic structures, we propose that the ordered double perovskites LaAVRuO and LaVO/ARuO (001) superlattice (A = Ca, Sr and B…
Cooperative Jahn-Teller transition and resonant x-ray scattering in thin film
J. H. Song, J. H. Park, K. -B. Lee +1
Epitaxial thin films of stoichiometric were grown on substrates using the pulsed laser deposition technique. From the high resolution x-ray dif…
High Resolution Bulk Sensitive Photoemission Study of the Metal-Insulator Transition in (V,Cr)2O3 : Comparison to LDA+DMFT Theory
Hyeong-Do Kim, J-H. Park, J. W. Allen +7
%auto-ignore This paper has been withdrawn by the authors because its results have been superceded by new experimental data and new theory presented in S.-K. Mo et al., cond-mat/02…
Direct experimental verification of applicability of single-site model for angle integrated photoemission of small concentrated Ce compounds
H. -D. Kim, J. W. Allen, J. -H. Park +9
Bulk-sensitive high-resolution Ce 4f spectra have been obtained from 3d 4f resonance photoemission measurements on LaCeAl and LaCeRu for $x =…
Optical investigation on the electronic structures of Y_{2}Ru_{2}O_{7}, CaRuO_{3}, SrRuO_{3}, and Bi_{2}Ru_{2}O_{7}
J. S. Lee, Y. S. Lee, T. W. Noh +7
We investigated the electronic structures of the bandwidth-controlled ruthenates, YRuO, CaRuO, SrRuO, and BiRuO, by optical conduc…
X-ray absorption spectroscopy study of diluted magnetic semiconductors: Zn1-xMxSe (M = Mn, Fe, Co) and Zn1-xMnxY (Y = Se, Te)
Kwanghyun Cho, Hoon Koh, S. -J. Oh +7
We have investigated 3d electronic states of doped transition metals in II-VI diluted magnetic semiconductors, Zn1-xMxSe (M = Mn, Fe, Co) and Zn1-xMnxY (Y = Se, Te), using the tran…
Charge and Orbital Ordering and Spin State Transition Driven by Structural Distortion in YBaCo_2O_5
S. K. Kwon, B. I. Min
We have investigated electronic structures of antiferromagnetic YBaCo_2O_5 using the local spin-density approximation (LSDA) + U method. The charge and orbital ordered insulating g…