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Squid magnetometer

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The SQUID (Superconducting Quantum Interference Device) magnetometer is a highly sensitive instrument used to measure extremely small magnetic fields. It operates based on the principles of superconductivity and quantum interference. The core function of the SQUID magnetometer is to precisely detect and measure magnetic properties of materials with high accuracy and sensitivity.

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Lab products found in correlation

Physical property measurement system (ppms), by Quantum Design (4 mentions) Jem 2100, by JEOL (2 mentions) Emx plus x band spectrometer, by TA Instruments (2 mentions) Tga 550, by Thermo Fisher Scientific (2 mentions) Fe sem, by JEOL (1 mentions) Jem arm200f, by JEOL (1 mentions) Dynacool, by Quantum Design (1 mentions) 14 t ppms, by Quantum Design (1 mentions) Esr900 liquid helium cryostat, by Oxford Instruments (1 mentions) Elexsys e580 spectrometer, by Bruker (1 mentions) Cu kα radiation, by Philips (1 mentions) S 4800, by Hitachi (1 mentions) Xrd 6000 powder, by Shimadzu (1 mentions) Jxa 8530f, by JEOL (1 mentions) D8 advanced system, by Bruker (1 mentions) Da30l, by Ningbo Scientz Biotechnology (1 mentions) K alpha x ray photoelectron spectrometer, by Thermo Fisher Scientific (1 mentions) Nicolet is50 nir, by Thermo Fisher Scientific (1 mentions) X pert diffractometer, by Malvern Panalytical (1 mentions) Vertex 70v ftir spectrometer, by Bruker (1 mentions)

Spelling variants of this product

MPMS3 SQUID magnetometer (40 citations) MPMS SQUID magnetometer (34 citations) MPMS-XL7 SQUID magnetometer (33 citations) MPMS XL-5 SQUID magnetometer (27 citations) MPMS-5XL SQUID magnetometer (13 citations) SQUID magnetometer MPMS-XL 7 (7 citations) 7T SQUID magnetometer (3 citations) MPMS Superconducting Quantum Interference Device (SQUID) magnetometer (2 citations) SuperconductingQuantum Interference Device (SQUID) magnetometer (model MPMS3 (2 citations) Magnetic Property Measurement System 3 (MPMS3) Superconducting Quantum Inference Device (SQUID) magnetometer (2 citations)

52 protocols using squid magnetometer

1

Superconductor Microstructure and Properties

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The microstructure of these samples was studied by field emission scanning electron microscope (FE-SEM, JEOL) as well as transmission electron microscope (TEM JEOL/JEM-2100). Superconducting critical temperature (Tc) and magnetization hysteresis loops (M-H) were measured using SQUID Magnetometer (Quantum Design, model MPMS5). Specimens for SQUID measurements, with approximate dimensions of 1 × 1x0.75 mm3, were cut from bulk MgB2 and (Gd,Y,Er)123 samples. Jc was calculated from the M-H loops using the extended bean critical state model formula for finite rectangular samples [19 (link)], Jc=20▵m/[a2cb-a/3]
where a and b are cross-sectional dimensions, b > a, and c is thickness of the specimen (a, b, c in mm). Δm (in emu units, 1 emu = 10–3 Am2) is the difference of magnetic moments during descending and ascending field in the M-H loop.
The trapped field (TF) for the (Gd,Y,Er)123 bulks was measured by field cooling method at 77.3 K under a field of 1 T. The Hall probe was placed at positions 0.3 (surface touched) and 1.3 mm above the top surface for scanning the TF value.
Muralidhar M., Srikanth A.S., Pinmangkorn S., Santosh M, & Milos J. (2023). Role of Superconducting Materials in the Endeavor to Stop Climate Change and Reach Sustainable Development. Journal of Superconductivity and Novel Magnetism, 36(3), 803-812.
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2

Single Crystal Growth of ErAl2Ge2

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Single crystals of ErAl 2 Ge 2 were grown by the high temperature solution growth method, taking advantage of the deep eutectic (420 • C) formed by the Al:Ge (72:28) [12] (link). High purity metals of Er, Al and Ge with a starting composition of 1 : 17.5 : 7.5 were placed in a high quality recrystallized alumina crucible. The alumina crucible was sealed in an evacuated quartz ampoule under a partial pressure of argon gas. The pressure of the argon gas was kept at a level such that it does not exceed the atmospheric pressure at the maximum growth temperature. The ampoule was placed in a resistive heating box type furnace and heated to 1050 • C at a rate of 30 • C/hr and held at this temperature for 20 hr for homogenizing the melt. Then the furnace was cooled at the rate of 1.8 • C/hr down to 600 • C at which point the excess flux was removed by means of centrifuging. Well defined shiny single crystals with typical dimensions of 4 mm × 3 mm × 1 mm were obtained. A few pieces of the single crystals were ground for powder x-ray diffraction measurement using PANalytical Xray machine with a monochromatic Cu-K α radiation. The magnetic measurements were performed using SQUID magnetometer (Quantum Design, USA) and the heat capacity and electrical measurements were performed using a physical property measurement system (PPMS).
Nandi M., Thamizhavel A, & Dhar S.K. (2020). Anisotropic magnetic properties of trigonal ErAl2Ge2 single crystal. Journal of physics. Condensed matter : an Institute of Physics journal, 32(18).
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3

Electrical and Thermal Transport Measurements

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Electrical and thermal transport measurements were performed in a Quantum Design Physical Property measurement system using both the Resistivity and Thermal Transport Options. Silver epoxy (H20E Epo-Tek) was used for electrical, thermal, and mechanical contacts in a standard four-point configuration. For temperature (4–300 K) and magnetic field dependent (0–4 Tesla) magnetization measurements, a Quantum Design SQUID magnetometer was used.
Jin K., Sales B.C., Stocks G.M., Samolyuk G.D., Daene M., Weber W.J., Zhang Y, & Bei H. (2016). Tailoring the physical properties of Ni-based single-phase equiatomic alloys by modifying the chemical complexity. Scientific Reports, 6, 20159.
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4

Electrical Resistance and Magnetism Measurements

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In situ electrical resistance was measured by a four-probe resistance measurement system consisting of a Keithley 6,221 current source, a 2182A nanovoltmeter and a 7,001 voltage/current switch system. A DAC device was used to generate pressures up to 30 GPa, and a cubic boron nitride layer was inserted between the steel gasket and diamond anvil to provide electrical insulation between the electrical leads and gasket. Four gold wires were arranged to contact the sample in the chamber for resistance measurements. For the magnetism measurement, 0.1 g sample was made using a large volume press apparatus at 20 GPa for 1 h at room temperature. The DC magnetic susceptibility was measured using a SQUID magnetometer (Quantum Design) with an applied magnetic field of 500 Oe.
Wang Y., Zhu J., Yang W., Wen T., Pravica M., Liu Z., Hou M., Fei Y., Kang L., Lin Z., Jin C, & Zhao Y. (2016). Reversible switching between pressure-induced amorphization and thermal-driven recrystallization in VO2(B) nanosheets. Nature Communications, 7, 12214.
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5

Characterization of Magnetic Core-Shell Nanoparticles

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The size and morphology of magnetic core-shell nanoparticles (Fe3O4@SiO2–NH2, MCSNPs) were observed under a high resolution transmission electron microscope (HRTEM) (Cs_corrected/EDS/EELS model JEM ARM 200F, JEOL, USA). X-ray photoelectron spectroscopy (XPS) spectra were collected on an ESCALAB 250 multi-technique X-ray photoelectron spectrometer (Thermo Scientific, UK) using a monochromatic Al Kα x-ray source (hυ = 1486.6 eV). The magnetization measurements were performed on a Quantum Design SQUID magnetometer to investigate the magnetization properties of the nanoparticles. Particle size distribution and zeta potentials were measured with a PSS-NICOMP-380 ZLS (USA) particle sizing system.
Chaurasia A.K., Thorat N.D., Tandon A., Kim J.H., Park S.H, & Kim K.K. (2016). Coupling of radiofrequency with magnetic nanoparticles treatment as an alternative physical antibacterial strategy against multiple drug resistant bacteria. Scientific Reports, 6, 33662.
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6

Superconducting Quantum Interference Device Magnetometry

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The magnetic measurements were conducted using a superconducting quantum interference device (SQUID) magnetometer (Quantum Design, San Diego, CA, USA) operating in the 5–300 K temperature range in a He atmosphere of ~100 Pa (maximum applied field H = 50 kOe, sensitivity 10−7 emu). To calculate the specific magnetization (M = magnetic moment/sample mass, expressed in emu/g) the mass of the sample was measured with a precision of 10−5 g.
Reale G., Calderoni F., Ghirardi T., Porto F., Illuminati F., Marvelli L., Martini P., Uccelli L., Tonini E., Del Bianco L., Spizzo F., Capozza M., Cazzola E., Carnevale A., Giganti M., Turra A., Esposito J, & Boschi A. (2023). Development and Evaluation of the Magnetic Properties of a New Manganese (II) Complex: A Potential MRI Contrast Agent. International Journal of Molecular Sciences, 24(4), 3461.
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7

Magnetic Measurements of UO2+x Powder

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Magnetic measurements were performed in a Quantum Design SQUID magnetometer over the temperature range 2 ≤ T ≤ 350 K and in various fixed magnetic fields between 1 and 50 kOe. For these measurements, a powder of UO2+x was sandwiched between two plastic discs whose susceptibility was determined independently and subtracted from the magnetic response of the sample plus discs. In plots shown, χ is defined as the magnetic moment of the sample divided by applied field, M/H.
Conradson S.D., Gilbertson S.M., Daifuku S.L., Kehl J.A., Durakiewicz T., Andersson D.A., Bishop A.R., Byler D.D., Maldonado P., Oppeneer P.M., Valdez J.A., Neidig M.L, & Rodriguez G. (2015). Possible Demonstration of a Polaronic Bose-Einstein(-Mott) Condensate in UO2(+x) by Ultrafast THz Spectroscopy and Microwave Dissipation. Scientific Reports, 5, 15278.
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8

Magnetic and Thermal Characterization of NiBO

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DC magnetic susceptibility measurements at 0.1 T were conducted at the Center for Nanophase Materials Sciences (CNMS) at Oak Ridge National Laboratory (ORNL) using the superconducting quantum interference device (SQUID) magnetometer by Quantum Design. A powder sample of NiBO with a total mass of 119.2 mg was used. Variable temperature and variable field DC magnetic susceptibility were measured using the Physical Property Measurement System (PPMS) Dynacool by Quantum Design with the Vibrating Sample Magnetometer (VSM) option. The powder with a total mass of 11.7 mg was used for the temperature-dependent of magnetization under a magnetic field of 0.1 T from 2 K to 300 K. The magnetization was performed between 2 K and 300 K up to 14 T. Temperature-dependent of specific heat was measured by relaxation technique using the PPMS. A pressed pellet with a total mass of 6.5 mg was used for specific-heat measurement between 2 K to 200 K from 0 T to 14 T.
Tin P., Jenkins M.J., Xing J., Caci N., Gai Z., Jin R., Wessel S., Krzystek J., Li C., Daemen L.L., Cheng Y, & Xue Z.L. (2023). Haldane topological spin-1 chains in a planar metal-organic framework. Nature Communications, 14, 5454.
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9

Magnetic Measurements of Hole-Doped Magnetite

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Magnetic measurements were recorded with a Quantum Design SQUID magnetometer after zero-field cooling in fields of 100 Oe (samples #1 and #2) or 500 Oe (sample #3) during warming. Microcrystals were fixed in Eicosane within the gelatine capsule. Hole-doping levels x = 0.0116 and 0.0228 of samples #2 and #3, respectively, were estimated from their measured Verwey transition temperatures using the TV-x doping correlation plot in ref. 17 (link).
Pachoud E., Cumby J., Perversi G., Wright J.P, & Attfield J.P. (2020). Site-selective doping of ordered charge states in magnetite. Nature Communications, 11, 1671.
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10

Magnetic and Dielectric Characterization

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Magnetic characterizations were performed using a SQUID magnetometer (Quantum Design) for zero-field-cooled warming (zfcw) and field-cooled warming (fcw) measurements from 5 to 300 K in a magnetic field of 100 Oe and for isothermal magnetic field dependent measurements up to 50000 Oe at 5, 25, 50 and 100 K.
For dielectric measurements, a 3.52 x 2.62 x 0.74 mm sample was prepared and silver paste was deposited on the two larger surfaces to attach electric copper wires. The sample was soldered to a home-made sample probe which was inserted in a 14 T-PPMS (Quantum Design). The dielectric permittivity was obtained using an Agilent 4284A LCR meter.
Caubergh S., Matsubara N., Damay F., Maignan A., Fauth F., Manuel P., Khalyavin D.D., Vertruyen B, & Martin C. (2020). Original Network of Zigzag Chains in the β Polymorph of Fe2WO6: Crystal Structure and Magnetic Ordering. Inorganic chemistry, 59(14).
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