E 101 microwave bridge

Manufactured by Agilent Technologies

The E-101 microwave bridge is a laboratory instrument designed for the measurement and analysis of microwave signals. It provides a stable and precise platform for making various microwave measurements, including reflection, transmission, and power characteristics. The core function of the E-101 is to generate, transmit, and receive microwave signals for use in a variety of test and measurement applications.

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Lab products found in correlation

Esr900 cryostat, by Oxford Instruments (1 mentions) Itc 503 temperature controller, by Oxford Instruments (1 mentions) E580 spectrometer, by Bruker (1 mentions)

2 protocols using e 101 microwave bridge

EPR Characterization of Cs4O6 Compound

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For the EPR measurements, around 5 mg of ¹⁷O-enriched Cs₄O₆ powder was sealed under dynamic vacuum in a standard Suprasil quartz tube. Continuous wave X-band EPR spectra were measured on a homebuilt spectrometer equipped with a Varian E-101 microwave bridge, a Varian TEM104 dual-cavity resonator, an Oxford Instruments ESR900 cryostat, and an Oxford Instruments ITC503 temperature controller. The temperature stability was better than ±0.05 K at all temperatures.
The EPR spectra (fig. S1A) were measured during cooling and warming up the sample. The sample was cooled from 325 to 4 K in 24 hours with a constant rate of 0.22 K/min, whereas the average warming up rate was about 0.5 K/min. The powder X-band EPR spectra were observed clearly only in the T phase, in agreement with our previous report (20 ). The temperature dependence of the EPR linewidth and the intensity of the EPR signal are presented in fig. S1, B and C, respectively.

Adler P., Jeglič P., Reehuis M., Geiß M., Merz P., Knaflič T., Komelj M., Hoser A., Sans A., Janek J., Arčon D., Jansen M, & Felser C. (2018). Verwey-type charge ordering transition in an open-shell p-electron compound. Science Advances, 4(1), eaap7581.

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High-Temperature EPR Characterization of [10]CPP⊃(C59N)2

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Around 5-10 mg of [10]CPP⊃(C59N)2⊂ [10]CPP powder was sealed under the dynamic vacuum in a 4 mm diameter silica tube (Wilmad Lab Glass). High-temperature experiments were performed on a home-built X-band EPR spectrometer equipped with a Varian E-101 microwave bridge and a Varian TEM104 dual cavity resonator. The high-temperature unit allows for continuous-wave (cw) EPR experiments up to 350 °C without compromising the quality of the resonator. The temperature stability is better than ±2 K. Pulsed X-band EPR experiments were performed on the same samples but on the Bruker E580 spectrometer. Here, the field-swept spectra were recorded by measuring the Hahn-echo intensity (the pulse sequence τp(π/2)τ - For the measurements of the Rabi oscillations, we used a nutation experiment with the echo detection. A nutation microwave pulse that coherently drives the electron magnetization was varied from the initial pulse length of 16 ns to the maximum of 2000 ns. The microwave field B1 was varied by using different microwave attenuations and calibrated by measuring the pulse length of π/2 pulse. In all cases appropriate phase cycling was applied to compensate for the pulse errors.

Tanuma Y., Stergiou A., Bužan Bobnar A., Gaboardi M., Rio J., Volkmann J., Wegner H.A., Tagmatarchis N., Ewels C.P, & Arčon D. (2021). Robust coherent spin centers from stable azafullerene radicals entrapped in cycloparaphenylene rings. Nanoscale, 13(47).

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