N. Hakim

activity

19982002

most citedPrecision microwave dielectric and magnetic susceptibility measurements of correlated electronic materials using superconducting cavities

30 citations · 75 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.supr-con2002★ 12 cited

The superconducting gap of \QTR{em}{in situ} $M g B_{2}$ thin films by microwave surface impedance measurements

N. Hakim, C. Kusko, S. Sridhar +4

Precision measurements of the microwave surface resistance $R_{s}$ of in situ $M g B_{2}$ films directly reveal an exponential behavior of $R_{s}$ at low temperature indicating a ful…

cond-mat.str-el2001

Dielectric signatures of lattice instabilities at 32K and 245K in $L a_{2 - y} S r_{y} M O_{4 + x}$ (M=Cu,Ni) Cuprates and Nickelates

P. V. Parimi, N. Hakim, F. C. Chou +2

New dielectric transitions are observed at common temperatures 32K and 245K, in isostructural $L a_{2} C u O_{4 + x}$ and $L a_{5/3} S r_{1/3} N i O_{4},$ that are signatures of local lattice…

cond-mat.supr-con2001★ 15 cited

Microwave properties of superconducting $M g B_{2}$

N. Hakim, P. V. Parimi, C. Kusko +4

Measurements of the $10 G H z$ microwave surface resistance of dense $M g B_{2}$ wire and pellet are reported. Significant improvements are observed in the wire with reduction of porosi…

cond-mat.str-el2000★ 30 cited

Precision microwave dielectric and magnetic susceptibility measurements of correlated electronic materials using superconducting cavities

Z. Zhai, C. Kusko, N. Hakim +1

We analyze microwave cavity perturbation methods, and show that the technique is an excellent, precision method to study the dynamic magnetic and dielectric response in the $G H z$ f…

cond-mat.str-el1999

Observation of spin freezing and relaxation at microwave frequencies in the spin ladder compound $S r_{14 - x} C a_{x} C u_{24} O_{41}$

Z. Zhai, P. V. Patanjali, N. Hakim +5

We report the observation of a frequency ( $ω$ ) and temperature (T) -dependent loss peak in $χ^{''}$ and accompanying dispersion in $χ^{'}$ from microwave (2-18GHz) measurements of the co…

cond-mat.str-el1998★ 18 cited

High frequency magneto-impedance of double perovskite $L a_{1.2} S r_{1.8} M n_{2} O_{7}$ : secondary transitions at high temperatures

P. V. Patanjali, P. Theule, Z. Zhai +6

Radio frequency magneto-impedance measurements clearly reveal a pronounced anomaly at 260K besides the main MI transition at 125K in the double perovskite material $La_{1.2}Sr_{1.8…

The superconducting gap of \QTR{em}{in situ} MgB2​ thin films by microwave surface impedance measurements

Dielectric signatures of lattice instabilities at 32K and 245K in La2−y​Sry​MO4+x​ (M=Cu,Ni) Cuprates and Nickelates

Microwave properties of superconducting MgB2​