dc.contributor | Universidade Estadual Paulista (UNESP) | |
dc.creator | Manna, Rudra Sekhar | |
dc.creator | Wolf, Bernd | |
dc.creator | De Souza, Mariano | |
dc.creator | Lang, Michael | |
dc.date | 2014-05-27T11:26:53Z | |
dc.date | 2016-10-25T18:37:41Z | |
dc.date | 2014-05-27T11:26:53Z | |
dc.date | 2016-10-25T18:37:41Z | |
dc.date | 2012-08-01 | |
dc.date.accessioned | 2017-04-06T01:59:50Z | |
dc.date.available | 2017-04-06T01:59:50Z | |
dc.identifier | Review of Scientific Instruments, v. 83, n. 8, 2012. | |
dc.identifier | 0034-6748 | |
dc.identifier | http://hdl.handle.net/11449/73461 | |
dc.identifier | http://acervodigital.unesp.br/handle/11449/73461 | |
dc.identifier | 10.1063/1.4747272 | |
dc.identifier | 2-s2.0-84865752762.pdf | |
dc.identifier | 2-s2.0-84865752762 | |
dc.identifier | http://dx.doi.org/10.1063/1.4747272 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/894267 | |
dc.description | We report on the realization of a capacitive dilatometer, designed for high-resolution measurements of length changes of a material for temperatures 1.4K ≤ T ≤ 300K and hydrostatic pressure P ≤ 250MPa. Helium ( 4He) is used as a pressure-transmitting medium, ensuring hydrostatic-pressure conditions. Special emphasis has been given to guarantee, to a good approximation, constant-pressure conditions during temperature sweeps. The performance of the dilatometer is demonstrated by measurements of the coefficient of thermal expansion at pressures P ≃ 0.1MPa (ambient pressure) and 104MPa on a single crystal of azurite, Cu 3(CO 3) 2(OH) 2, a quasi-one-dimensional spin S = 1/2 Heisenberg antiferromagnet. The results indicate a strong effect of pressure on the magnetic interactions in this system. © 2012 American Institute of Physics. | |
dc.language | eng | |
dc.relation | Review of Scientific Instruments | |
dc.rights | info:eu-repo/semantics/closedAccess | |
dc.subject | Ambient pressures | |
dc.subject | Constant-pressure conditions | |
dc.subject | Effect of pressure | |
dc.subject | Heisenberg antiferromagnets | |
dc.subject | High resolution | |
dc.subject | High-resolution measurements | |
dc.subject | Magnetic interactions | |
dc.subject | Pressure transmitting mediums | |
dc.subject | Quasi-one-dimensional | |
dc.subject | Thermal expansion measurements | |
dc.subject | Helium | |
dc.subject | Hydrostatic pressure | |
dc.subject | Dilatometers | |
dc.title | High-resolution thermal expansion measurements under helium-gas pressure | |
dc.type | Otro | |