Florida State University

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19912026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2005 · cond-mat.str-elShow all

21 papers · 2 filters

cond-mat.str-el2005★ 56 cited

Critical Phenomena and the Quantum Critical Point of Ferromagnetic Zr1-xNbxZn2

D. A. Sokolov, M. C. Aronson, W. Gannon +1

We present a study of the magnetic properties of Zr1-xNbxZn2, using an Arrott plot analysis of the magnetization. The Curie temperature TC is suppressed to zero temperature for Nb…

cond-mat.str-el2005★ 25 cited

Magneto-Dielectric Effect in the S = 1/2 Quasi-Two Dimensional Antiferromagnet K2V3O8

R. C. Rai, J. Cao, J. L. Musfeldt +6

We report the optical and magneto-optical properties of K2V3O8, an S=1/2 quasi-two-dimensional Heisenberg antiferromagnet. Local spin density approximation electronic structure cal…

cond-mat.str-el2005★ 18 cited

Magneto-optical evidence of double exchange in a percolating lattice

G. Caimi, A. Perucchi, L. Degiorgi +5

Substituting $E u$ by $C a$ in ferromagnetic $E u B_{6}$ leads to a percolation limited magnetic ordering. We present and discuss magneto-optical data of the $E u_{1 - x} C a_{x} B_{6}$ series,…

cond-mat.str-el2005★ 1 cited

Field Dependent Phase Diagram of the Quantum Spin Chain (CH3)2NH2CuCl3

M. B. Stone, W. Tian, T. P. Murphy +2

Although (CH3)2NH2CuCl3 (MCCL) was first examined in the 1930's [1], there are open questions regarding the magnetic dimensionality and nature of the magnetic properties. MCCL is p…

cond-mat.str-el2005★ 33 cited

Nonexponential Relaxations in a Two-Dimensional Electron System in Silicon

J. Jaroszynski, Dragana Popovic

The relaxations of conductivity have been studied in a strongly disordered two-dimensional (2D) electron system in Si after excitation far from equilibrium by a rapid change of car…

cond-mat.str-el2005★ 27 cited

Scaling behavior of an Anderson impurity close to the Mott-Anderson transition

M. C. O. Aguiar, V. Dobrosavljevic, E. Abrahams +1

The scaling behavior of Anderson impurity models each of which with a different site energy epsilon_i is examined close to the Mott-Anderson transition. Depending on the impurity e…

cond-mat.str-el2005★ 13 cited

Short-Range Ordered Phase of the Double-Exchange Model in Infinite Dimensions

R. S. Fishman, F. Popescu, G. Alvarez +2

Using dynamical mean-field theory, we have evaluated the magnetic instabilities and T=0 phase diagram of the double-exchange model on a Bethe lattice in infinite dimensions. In add…

cond-mat.str-el2005★ 12 cited

Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of $η$ -Mo $_{4}$ O $_{11}$

G. -H. Gweon, S. -K. Mo, J. W. Allen +4

We report angle resolved photoemission (ARPES) spectra of $η$ -Mo $_{4}$ O $_{11}$ , a layered metal that undergoes two charge density wave (CDW) transitions at 109 K and 30 K. We have di…

cond-mat.str-el2005★ 22 cited

Irreversible dynamics of the phase boundary in U(Ru0.9)Rh0.04)2Si2 and implications for ordering

A. V. Silhanek, M. Jaime, N. Harrison +10

We report measurements and analysis of the specific heat and magnetocaloric effect at the phase boundary into the single magnetic field-induced phase (phase II) of U(Ru{0.96}Rh{0.0…

cond-mat.str-el2005★ 27 cited

Severe Fermi Surface Reconstruction at a Metamagnetic-Transition in Ca $_{2 - x}$ Sr $_{x}$ RuO $_{4}$ (for $0.2 \leq x \leq 0.5$ )

L. Balicas, S. Nakatsuji, D. Hall +4

We report an electrical transport study in Ca $_{2 - x}$ Sr $_{x}$ RuO $_{4}$ single crystals at high magnetic fields ( $B$ ). For $x = 0.2$ , the Hall constant $R_{x y}$ decreases sharply at an…

cond-mat.str-el2005★ 23 cited

Spin polarization induced tenfold magneto-resistivity of highly metallic 2D holes in a narrow GaAs quantum well

X. P. A. Gao, G. S. Boebinger, A. P. Mills +3

We observe that an in-plane magnetic field ( $B_{∣∣}$ ) can induce an order of magnitude enhancement in the low temperature ( $T$ ) resistivity ( $ρ$ ) of metallic 2D holes in a narrow (…

cond-mat.str-el2005★ 18 cited

Green functions for nearest- and next-nearest-neighbor hopping on the Bethe lattice

M. Kollar, M. Eckstein, K. Byczuk +8

We calculate the local Green function for a quantum-mechanical particle with hopping between nearest and next-nearest neighbors on the Bethe lattice, where the on-site energies may…

cond-mat.str-el2005★ 49 cited

Colossal Magnetoresistance by Avoiding a Ferromagnetic State in the Mott System Ca3Ru2O7

X. N. Lin, Z. X. Zhou, V. Durairaj +2

Transport and magnetic studies of Ca3Ru2O7 for temperatures ranging from 0.4 K to 56 K and magnetic fields, B, up to 45 T leads to strikingly different behavior when the field is a…

cond-mat.str-el2005★ 3 cited

Effect of Adiabatic Phonons on Striped and Homogeneous Ground States

Yucel Yildirim, Adriana Moreo

The effects of adiabatic phonons on a spin-fermion model for high T_c cuprates are studied using numerical simulations. In the absence of electron-phonon interactions (EPI), stripe…

cond-mat.str-el2005★ 21 cited

Soliton phase near antiferromagnetic quantum critical point in Q1D conductors

L. P. Gor'kov, P. D. Grigoriev

In the frameworks of a nesting model for Q1D organic conductor at the antiferromagnetic (SDW) quantum critical point the first-order transition separates metallic state from the so…

cond-mat.str-el2005★ 29 cited

The Truncated Polynomial Expansion Monte Carlo Method for Fermion Systems Coupled to Classical Fields: A Model Independent Implementation

G. Alvarez, C. Sen, N. Furukawa +2

A software library is presented for the polynomial expansion method (PEM) of the density of states (DOS) developed by two of the authors (N.F. and Y. M.). The library provides all…

cond-mat.str-el2005★ 28 cited

Effects of disorder on the non-zero temperature Mott Transition

M. C. O. Aguiar, V. Dobrosavljevic, E. Abrahams +1

The physics of the metal-insulator coexistence region near the non-zero temperature Mott transition is investigated in presence of weak disorder. We demonstrate that disorder reduc…

cond-mat.str-el2005★ 13 cited

Magnetic Field Dependent Behavior of the CDW ground state in Per2M(mnt)2 (M = Au, Pt)

J. S. Brooks, D. Graf, E. S. Choi +4

The Per2M(mnt)2 class of organic conductors exhibit a charge density wave (CDW) ground state below about 12 K, which may be suppressed in magnetic fields of order 20 to 30 T. Howev…

cond-mat.str-el2005★ 29 cited

Strongly Enhanced Hole-Phonon Coupling in the Metallic State of the Dilute Two-Dimensional Hole Gas

X. P. A. Gao, G. S. Boebinger, A. P. Mills +3

We have studied the temperature dependent phonon emission rate $P$ ( $T$ ) of a strongly interacting ( $r_{s} \geq$ 22) dilute 2D GaAs hole system using a standard carrier heating techniqu…

cond-mat.str-el2005★ 20 cited

Resonant Nernst effect in the metallic and field-induced spin density wave states of (TMTSF)2ClO4

E. S. Choi, J. S. Brooks, H. Kang +2

We examine an unusual phenomenon where, in tilted magnetic fields near magic angles parallel to crystallographic planes, a "giant" resonant Nernst signal has been observed by Wu et…

cond-mat.str-el2005★ 17 cited

Gradual transition from insulator to semimetal of Ca $_{1 - x}$ Eu $_{x}$ B $_{6}$ with increasing Eu concentration

R. R. Urbano, P. G. Pagliuso, C. Rettori +7

The local environment of Eu $^{2 +}$ ( $4 f^{7}$ , $S = 7/2$ ) in Ca $_{1 - x}$ Eu $_{x}$ B $_{6}$ ( $0.003 ⩽ x ⩽ 1.00$ ) is investigated by means of electron spin resonance (ESR). Fo…