Peter Gruenberg (R) and Gerhard Ertl pose with the Federal Order of Merit during a ceremony at the presidential 'Bellevue' palace in Berlin, April 8, 2008. Gruenberg won the 2007 Nobel Prize for Physics and Ertl won the 2007 Nobel Prize in Chemistry. REUTERS/Tobias Schwarz (GERMANY)

Peter Gruenberg attends a Federal Order of Merit ceremony at the presidential 'Bellevue' palace in Berlin, April 8, 2008. Gruenberg was decorated with the order after he won the 2007 Nobel Prize for Physics. REUTERS/Tobias Schwarz (GERMANY)

German President Horst Koehler (R) hands over the Federal Order of Merit to Peter Gruenberg and Gerhard Ertl during a ceremony at the presidential 'Bellevue' palace in Berlin, April 8, 2008. Gruenberg won the 2007 Nobel Prize for Physics and Ertl won the 2007 Nobel Prize in Chemistry. REUTERS/Tobias Schwarz (GERMANY)

Peter Gruenberg (L) of Germany receives the joint 2007 Nobel Prize for Physics from Swedish King Carl XVI Gustaf at the Concert Hall in Stockholm December 10, 2007. The Nobel Assembly at the Karolinska Institute awarded the Nobel Prize in Physics jointly to Albert Fert of France and Peter Gruenberg of Germany for their for the discovery of Giant Magnetoresistance. REUTERS/Stoyan Nenov (SWEDEN)

Albert Fert (L) of France receives the joint 2007 Nobel Prize for Physics from Swedish King Carl XVI Gustaf at the Concert Hall in Stockholm December 10, 2007. The Nobel Assembly at the Karolinska Institute awarded the Nobel Prize in Physics jointly to Albert Fert of France and Peter Gruenberg of Germany for the discovery of Giant Magnetoresistance. REUTERS/Stoyan Nenov (SWEDEN)

Laureates of the 2007 Nobel Prize (L-R, front row) Albert Fert of France for Physics, Peter Gruenberg of Germany for Physics, Gerhardt Ertl of Germany for Chemistry, Mario R.Capecchi of the U.S. for Medicine, Britain's Sir Martin J. Evans for Medicine, Oliver Smithies of the U.S. for Medicine, Eric S. Maskin of the U.S. for Economics and Roger B. Myerson of the U.S. for Economics attend the ceremony at the Concert Hall in Stockholm December 10, 2007. REUTERS/Stoyan Nenov (SWEDEN)

German Chancellor Angela Merkel poses with a hard drive at national IT Summit in Hanover December 10, 2007. German physicist Peter Gruenberg developed the technology used in this hard drive and won the 2007 Nobel Prize for physics. REUTERS/Hannibal Hanschke (GERMANY)

German Chancellor Angela Merkel poses with a hard drive at national IT Summit in Hanover December 10, 2007. German physicist Peter Gruenberg developed the technology used in this hard drive and won the 2007 Nobel Prize for physics. REUTERS/Hannibal Hanschke (GERMANY)

German Chancellor Angela Merkel poses with a hard drive in front of a photo of German physicist Peter Gruenberg at national IT Summit in Hanover December 10, 2007. Gruenberg developed the technology used in this hard drive and won the 2007 Nobel Prize for physics. REUTERS/Hannibal Hanschke (GERMANY)

Nobel prize winner Albert Fert leaves the Elysee Palace after his meeting with France's President Nicolas Sarkozy in Paris October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize in physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Regis Duvignau (FRANCE)

Nobel prize winner Albert Fert leaves the Elysee Palace after his meeting with France's President Nicolas Sarkozy in Paris October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize in physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Regis Duvignau (FRANCE)

Nobel prize winner Albert Fert leaves the Elysee Palace after his meeting with France's President Nicolas Sarkozy in Paris October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize in physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Regis Duvignau (FRANCE)

Nobel prize winner Albert Fert leaves the Elysee Palace after his meeting with France's President Nicolas Sarkozy in Paris October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize in physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Regis Duvignau (FRANCE)

Nobel prize winner Albert Fert leaves the Elysee Palace after his meeting with France's President Nicolas Sarkozy in Paris October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize in physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Regis Duvignau (FRANCE)

Nobel prize winner Albert Fert leaves the Elysee Palace after his meeting with France's President Nicolas Sarkozy in Paris October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize in physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Regis Duvignau (FRANCE)

France's President Nicolas Sarkozy (L) speaks with Nobel prize winner Albert Fert at the Elysee Palace in Paris, October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices REUTERS/Regis Duvignau (FRANCE)

France's President Nicolas Sarkozy (L) speaks with Nobel prize winner Albert Fert at the Elysee Palace in Paris, October 12, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Regis Duvignau (FRANCE)

CEO of the Forschungszentrum Juelich Achim Bachem (L) congratulates German physicist Peter Gruenberg before a news conference held at the Forschungszentrum of the Western city of Juelich October 9, 2007. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on Tuesday. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. REUTERS/Ina Fassbender (GERMANY)

Physicist Peter Gruenberg addresses a news conference held at the Forschungszentrum of the Western city of Juelich October 9, 2007. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on Tuesday. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. REUTERS/Ina Fassbender (GERMANY)

Physicist Peter Gruenberg addresses a news conference held at the Forschungszentrum of the Western city of Juelich October 9, 2007. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on Tuesday. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. REUTERS/Ina Fassbender (GERMANY)

Physicist Peter Gruenberg addresses a news conference held at the Forschungszentrum of the Western city of Juelich October 9, 2007. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on Tuesday. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. REUTERS/Ina Fassbender (GERMANY)REUTERS/Ina Fassbender (GERMANY)

Physicist Peter Gruenberg sits in his laboratory after a news conference held at the Forschungszentrum of the Western city of Juelich October 9, 2007. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on Tuesday. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. REUTERS/Ina Fassbender (GERMANY)

Nobel prize winner Albert Fert of France poses in an office at the CNRS (Scientific Research National Center) in Paris, October 9,2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

Nobel prize winner Albert Fert of France attends a news conference in Paris October 9, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

Nobel prize winner Albert Fert of France speaks to a journalist during a news conference in Paris October 9, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

Nobel prize winner Albert Fert of France attends a news conference in Paris October 9, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

Nobel prize winner Albert Fert of France attends a news conference in Paris October 9, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

Nobel prize winner Albert Fert of France speak on the phone in Paris October 9, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

Nobel prize winner Albert Fert of France speak on the phone in Paris October 9, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

Nobel prize winner Albert Fert of France attends a news conference in Paris October 9, 2007. Fert and Germany's Peter Gruenberg won the 2007 Nobel Prize for physics for discoveries allowing the miniaturisation of hard disks in electronic devices. REUTERS/Philippe Wojazer (FRANCE)

An undated 2006 handout picture shows German scientist Peter Gruenberg. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on October 9, 2007. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. REUTERS/HO/Forschungszentrum Juelich (GERMANY)

An undated 2006 handout picture shows German scientist Peter Gruenberg. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on October 9, 2007. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. REUTERS/HO/Forschungszentrum Juelich (GERMANY)

Peter Gruenberg (L) of Germany and Albert Fert of France pose in Tokyo in this April 18, 2007 file picture. Albert Fert and Peter Gruenberg won the 2007 Nobel Prize for physics for their work with nanotechnology, the Nobel Committee for Physics at the Royal Swedish Academy of Sciences said on October 9, 2007. The prestigious 10 million Swedish crown ($1.54 million) prize recognised the pair's work which has allowed the radical miniaturisation of hard disks. Picture taken April 18, 2007. REUTERS/Everett Kennedy Brown/Pool (JAPAN)

Estonia's Grethe Gruenberg and Kristian Rand perform during the Original Dance Programme of the European Figure Skating Championships at the Torwar ice rink in Warsaw January 25, 2007. REUTERS/Peter Andrews (POLAND)

Estonia's Grethe Gruenberg and Kristian Rand perform during the Compulsory Dance programme of the European Figure Skating Championships at the Torwar ice rink in Warsaw January 23, 2007. REUTERS/Peter Andrews (POLAND)

Estonia's Grethe Gruenberg and Kristian Rand perform during the Compulsory Dance programme of the European Figure Skating Championships at the Torwar ice rink in Warsaw January 23, 2007. REUTERS/Peter Andrews (POLAND)