241 citations · 559 across the 9 of their papers we have counts for
9 papers
Magnetodielectric Effects from Spin Fluctuations in Isostructural Ferromagnetic and Antiferromagnetic Systems
G. Lawes, A. P. Ramirez, C. M. Varma +1
We report on the effects of spin fluctuations, magnetic ordering, and external magnetic field on the dielectric constant of the ferromagnet SeCuO3, and the antiferromagnet TeCuO3.…
Singular Effects of Impurities near the Ferromagnetic Quantum-Critical Point
H. Maebashi, K. Miyake, C. M. Varma
Systematic theoretical results for the effects of a dilute concentration of magnetic impurities on the thermodynamic and transport properties in the region around the quantum criti…
Dynamics of some constrained lattices
M. E. Simon, C. M. Varma
We consider the dynamics of lattices which have constrained constitutive units flexible in only their mutual orientations. A continuum description is derived through which it is sh…
Magnetic Impurities in d-wave Superconductors
M. E. Simon, C. M. Varma
We solve the problem of a magnetic impurity in a -wave superconductor by a variational method. A moment is found to exist in the superconducting state only if the Kond…
Heavy-Fermions in a Transition-Metal Compound:
C. M. Varma
The recent discovery of heavy-Fermion properties in Lithium Vanadate and the enormous difference in its properties from the properties of Lithium Titanate as well as of the mangani…
Metal-Insulator Transition of Disordered Interacting Electrons
Qimiao Si, C. M. Varma
We calculate the corrections to the conductivity and compressibility of a disordered metal when the mean free path is smaller than the screening length. Such a condition is shown t…
Only Fermi-Liquids are Metals
C. M. Varma
Any singular deviation from Landau Fermi-liquid theory appears to lead, for arbitrarily small concentration of impurities coupling to a non-conserved quantity, to a vanishing densi…
Spontaneous vortex phase discovered?
T. K. Ng, C. M. Varma
It is argued that a spontaneous vortex phase may exist in the recently discovered compound at temperature below 2.3K. The consequences of this proposal are discussed.…
Low Temperature Upper Critical Field Anomalies in Clean Superconductors
Gabriel Kotliar, Chandra Varma
We interpret the upper-critical-field anomalies observed in some high- temperature superconductors as resulting from the proximity to a zero-temperature quantum critical point. We…