821 citations · 1.9k across the 14 of their papers we have counts for
14 papers
PAC study of the static and dynamic aspects of metal atom inside C60 cage
S. K. Das, R. Guin, D. Banerjee +5
30 keV 111mCd and 50 keV 199mHg beams from ISOLDE were used to implant on preformed target of C60 with the thickness of 1 mg/cm2. Endofullerene compounds, viz.,111mCd@C60 and 199mH…
Ab-initio study of the relation between electric polarization and electric field gradients in ferroelectrics
J. N. Gonçalves, A. Stroppa, J. G. Correia +4
The hyperfine interaction between the quadrupole moment of atomic nuclei and the electric field gradient (EFG) provides information on the electronic charge distribution close to a…
The role of hydrogen in room-temperature ferromagnetism at graphite surfaces
H. Ohldag, P. Esquinazi, E. Arenholz +4
We present a x-ray dichroism study of graphite surfaces that addresses the origin and magnitude of ferromagnetism in metal-free carbon. We find that, in addition to carbon stat…
On the origin of the electric carrier concentration in graphite
A. Arndt, D. Spoddig, P. Esquinazi +2
We investigate the dependence of the electrical resistivity of nm thick single crystalline graphite samples on the defect concentration produced by proton irradiation at…
Magnetic order in Graphite: Experimental evidence, intrinsic and extrinsic difficulties
P. Esquinazi, J. Barzola-Quiquia, D. Spemann +5
We discuss recently obtained data using different experimental methods including magnetoresistance measurements that indicate the existence of metal-free high-temperature magnetic…
The nuclear quadrupole interaction at 111Cd and 181Ta sites in anatase and rutile TiO2: A TDPAC study
Satyendra Kumar Das, Sanjay Vishwanath Thakare, Tilman Butz
The nuclear quadrupole interaction of the I=5/2 state of the nuclear probes 111Cd and 181Ta in the anatase and rutile polymorphs of bulk TiO2 was studied using the time differentia…