Magnetic Measurement Service

Infrastructures
Research areas
  • Physical Sciences
Contact

Dr. Iñaki Orue Goikuria (Service technician) Technology and science faculty Phone: 94 601 5941 e-mail: inaki.orue@ehu.es Dr. Mihail Ipatov (Service technician, Gipuzkoa campus) Phone: 943 018 255 e-mail: mihail.ipatov@ehu.es

Available for external users?
Yes
Access protocol

Access to the unit of Magnetic Measurements involves meeting the requirements set forth in the Protocol for access to SGIker and the services it provides.

Description

The intensive activity in terms of magnetism of different research groups from the Electricity and Electronics and Inorganic Chemistry Departments at the UPV/EHU has enabled a magnetic measurement laboratory to be set up in recent years which is equipped with magnetometers (Faraday and SQUID) and Electronic Spin Resonance Spectrometers (Bands X and Q). This laboratory has been in operation over the last few years as part of the General Service, and has been used by numerous users both from the UPV/EHU and from other universities and research centres, both in Spain and overseas. Under such conditions it is appropriate for this laboratory to continue performing its duties as part of the General Service. Research in Physics, Chemistry, Biochemistry and Material Science increasingly demands the more accurate and reliable characterization and determination of properties. Among the new materials widely in use in electronics, communications and electrical household appliances, etc., can be found magnetic and magnetoresistant materials, superconducters, and glass doped with rare types of earth, etc. On the other hand, research into new physical phenomena and new materials at low temperatures and low magnetic fields is already practically commonplace in most European and American universities. The capacity of a university such as ours enables - and makes it necessary - to ensure the existence at the UPV/EHU of a Magnetic Measurement Service which is equipped with modern, high-performance instruments, and with suitable maintenance, qualified personnel and scientists who are able to interpret the results.

Services

- Magnetization measurements and susceptibility to room temperature and according to temperature - Determination of transition temperature (Curie, Neel) - Determination of giromagnetic factors, splitting of metal ion levels - Magnetic granulometry for studies of small metal particles, oxides, etc. - Resistivity and magnetoresistance measurements - Hysteresis cycle measurements; permeability; coercitivity, for soft materials and permanent magnets - Training through specific courses. Teaching support in varying degrees and masters

Location

University of the basque country UPV/EHUScience and Technology Faculty Edificio CD3Martina Casiano research building at UPV/EHU science parkBº Sarriena, s/n 48940 Leioa (Vizcaya)Joxe Mari Korta Centre Floor -1 Avda. Tolosa, 72 20018Donostia-San Sebastián (Guipúzcoa)

Equipment

- Maximum ramp for magnetic field: 0.5 T/min. - Unlimited time temperature control between 2 and 325 K. - Vibrant sample magnetometry (VSM). Vibration frequency: 20 Hz. Sensitivity: 10-6 emu with pre-amplifier and average 5 sec. - AC susceptibility. Maximum extent of AC field: 20 Oe. Sensitivity to 1kHz: 10-7 emu. - DC magnetotransport (Resistivity and Hall Effect). Thermal stability: 0.005 K. Sensitivity: 15 nV.
CFMS, Cryogenic Ltd
- Unlimited temperature control between 5 and 400 K, extended to 2 K with a maximum time of 2 h. - Measured in DC. Sensitivity: 10-8 emu. - Furnace for measurements between 300 K and 800 K. - Multi-functional sample holder for electrical measurements.
MPMS-7T, Quantum Design
- Temperature control via continuous flow cryostat between 4 and 300 K. - Temperature control via gas nitrogen between 300 and 500 K. - Maximum magnetic field: 1T
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- Temperature control via continuous flow cryostat between 4 and 300 K. - Maximum magnetic field: 1.2 T.
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- Temperature control via furnace between 300 and 1000 K. - Sensitivity: 10^-5 emu wth a field of 1 T.
Manics
- Maximum field: 9 T. - Temperature: up to 1000K. (This equipment is to be found in the Korta building, Gipuzkoa Campus).
Quantum Design Model 6000
- Maximum magnetic field: 1.3 T.< - Variable temperature control between 4 and 400 K. Greater stability than 5 mK in the entire range. - Sensitivity: 50 nV.
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- Maximum field: 40 mT. - Excitation frequency: DC-1kHz.
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- Maximum field: 0.4 T. - Excitation frequency: DC-100 Hz
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