Jacques Curie (29 October 1855 – 19 February 1941) was a French

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...

and professor of

mineralogy Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy include the proces ...

at the

University of Montpellier The University of Montpellier (french: Université de Montpellier) is a public university, public research university located in Montpellier, in south-east of France. Established in 1220, the University of Montpellier is one of the oldest univ ...

. Along with his younger brother,

Pierre Curie Pierre Curie ( , ; 15 May 1859 – 19 April 1906) was a French physicist, a pioneer in crystallography, magnetism, piezoelectricity, and radioactivity. In 1903, he received the Nobel Prize in Physics with his wife, Marie Curie, and Henri Becqu ...

, he studied

pyroelectricity Pyroelectricity (from the two Greek words ''pyr'' meaning fire, and electricity) is a property of certain crystals which are naturally electrically polarized and as a result contain large electric fields. Pyroelectricity can be described as the a ...

in the 1880s, leading to their discovery of some of the mechanisms behind

piezoelectricity Piezoelectricity (, ) is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to applied mechanical stress. The word ''p ...

. He is buried in the Saint-Lazare cemetery in

Montpellier Montpellier (, , ; oc, Montpelhièr ) is a city in southern France near the Mediterranean Sea. One of the largest urban centres in the region of Occitania (administrative region), Occitania, Montpellier is the prefecture of the Departments of ...

Biography

In 1883, Jacques Curie was appointed professor of

at the

. This appointment marked the end of his collaboration with his brother

Pierre Pierre is a masculine given name. It is a French form of the name Peter. Pierre originally meant "rock" or "stone" in French (derived from the Greek word πέτρος (''petros'') meaning "stone, rock", via Latin "petra"). It is a translation ...

. He remained in

until his death in 1941 with the exception of the years 1887–1889, which he spent in

Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ...

, teaching at the School of Science of Algiers and conducting his research. It was not until 1903 that he was appointed to the chair of physics, a position he retained until his retirement in 1925. His son Maurice Curie was a physicist.

Research and discoveries

The major legacy of Jacques Curie is the discovery of the

piezoelectric effect Piezoelectricity (, ) is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to applied Stress (mechanics), mechanical s ...

with his brother

in 1880. The two brothers were then laboratory assistants at the Faculty of Sciences of Paris, under the direction of

Charles Friedel Charles Friedel (; 12 March 1832 – 20 April 1899) was a French chemist and mineralogist. Life A native of Strasbourg, France, he was a student of Louis Pasteur at the Sorbonne. In 1876, he became a professor of chemistry and mineralogy at t ...

. The accounts of their discovery generally give Jacques Curie only a minor role in favor of his brother Pierre. Doubtless the comparison between the latter's brilliant career and the more quiet one of Jacques gives some reason for this, however there is no evidence that Jacques was limited to a minor role: In particular he had more experience than his brother in the study of

. In fact it is almost impossible to clearly separate the contributions of the two brothers as they constantly shared their ideas. According to Shaul Katzir, one must consider the discovery as a joint contribution. The

Curie–von Schweidler law The Curie–von Schweidler law refers to the response of dielectric material to the step input of a direct current (DC) voltage first observed by Jacques Curie and Egon Ritter von Schweidler. Overview According to this law, the current decays acco ...

refers to the response of

dielectric In electromagnetism, a dielectric (or dielectric medium) is an electrical insulator that can be polarised by an applied electric field. When a dielectric material is placed in an electric field, electric charges do not flow through the mate ...

material to the step input of a direct current (DC) voltage first observed by Jacques Curie and Egon Ritter von Schweidler.

References

Jacques Curie Jacques Curie (29 October 1855 – 19 February 1941) was a French physicist and professor of mineralogy at the University of Montpellier. Along with his younger brother, Pierre Curie, he studied pyroelectricity in the 1880s, leading to their d ...
in the French Wikipédia]

{{DEFAULTSORT:Curie, Jacques 1856 births 1941 deaths 19th-century French physicists University of Montpellier faculty Curie family, Jacques 20th-century French physicists Burials in France

Biography

Research and discoveries

See also

References